Medical device certification number: 305AFBZX00029000
January 31, 2024 (Edition 1.2)

Actocardiograph MT-830

Operation Manual

Classification: Machinery device 21, visceral function inspection device
Controlled medical device: Medical device requiring specific maintenance and management
Generic name: Fetal monitor JMDN 37796000

CAUTION● Read this operation manual carefully before use.
● Keep these instructions for future reference.

Manufacturer

TOITU CO., LTD.

1-5-10, Ebisu-Nishi, Shibuya-Ku,
Tokyo, 150-0021 Japan
TEL: +81-3-3463-6381
FAX: +81-3-3463-6380
E-mail:international@toitu.co.jp
URL:https://en.toitu.co.jp/

Distributor

Introduction● This operation manual describes the required method of handling and safety precautions tofollow when using the Actocardiograph MT-830 (hereafter called "the device").
Read this operation manual carefully before use for safe operation of the device. All users
must read “For Safe and Proper Use” even if they are already familiar with the device. Any
carelessness may result in a serious accident.
Deviation from this manual may impair the safety of patients or operators, or cause device
performance to decline or damage to the device.
● The device’s intended use is to monitor the fetal heart rate, uterine contractions, thematernal heart rate, the maternal non-invasive blood pressure, and the maternal arterial
blood oxygen saturation (ranging from mid-pregnancy to delivery).
● This device is only to be used by doctors and health care workers (such as midwives andnurses) being supervised by doctors.
● To use this device in its optimum condition, proper operation and periodic maintenance are
required.
Only qualified personnel can repair the device.
If this device is used in a way not specified in this operation manual or repaired byunqualified personnel, TOITU and our distributors will accept no responsibility for the
performance of the device or the safety of patients or operators.
If this manual is lost or damaged, contact TOITU or our distributor to request a new
operation manual.

Actocardiograph MT-830 Operation Manual iUnderstanding this manual
In this manual, to avoid injury to the operator using this device, injury to other people, or damage toproperty, precautions that must be followed are categorized under "Warning", "Contraindication",and "Caution" as follows. In addition, supplementary information is provided as "Important" and"Note".
Indicates that failure to follow this instruction may result in death orsevere personal injury.
Indicates that the use of this device beyond the performance range,
inappropriate handling, or operation by unqualified or unintended
personnel may result in death or severe personal injury.
Indicates that failure to follow this instruction may result in personal
injury or damage to property.
Important

Indicates contents that should be followed when using this device.
Indicates useful information.

The following symbols are used to indicate different hazards.

Indicates an electrical hazard that may cause electric shock or fire.

Indicates an action that must be performed.

Indicates an action that must NOT be performed.

ii Actocardiograph MT-830 Operation ManualTable of Contents
Introduction .............................................................................................................. i
Understanding this manual .................................................................................... ii
1.

2.

For Safe and Proper Use ................................................................................. 1
1-1.

Safety Precautions..................................................................................................... 1

1-2.

Meaning of the symbols on the device ..................................................................... 6

1-3.

Meaning of the screen symbols on the device ......................................................... 8

1-4.

EMC Compliance........................................................................................................ 9

1-5.

Directive 2014/53/EU Declaration of Conformity ...................................................... 9

1-6.

Using Wireless LAN or Bluetooth® ........................................................................... 9

1-7.

Licensing the Device ................................................................................................. 9

Product Overview .......................................................................................... 10
2-1.

Feature ..................................................................................................................... 10

2-2.

Supplementary Functions ....................................................................................... 12

2-3.

Principle ................................................................................................................... 13

2-3-1.
2-3-2.
2-3-3.
2-3-4.
2-3-5.
2-3-6.

2-4.

3.

4.

Usage Environment ................................................................................................. 15

Package Contents .......................................................................................... 16
3-1.

Accessories.............................................................................................................. 16

3-2.

Major Options........................................................................................................... 18

Part Names and Functions ............................................................................ 20
4-1.

Main Unit .................................................................................................................. 20

4-1-1.
4-1-2.

4-2.

6.

Front and Right Side ...................................................................................................... 20
Rear and Left Side ......................................................................................................... 21

Display...................................................................................................................... 22

4-2-1.
4-2-2.
4-2-3.
4-2-4.
4-2-5.
4-2-6.
4-2-7.

5.

Fetal heart rate .............................................................................................................. 13
Uterine Contraction ........................................................................................................ 13
Maternal Heart Rate....................................................................................................... 13
Maternal non-invasive blood pressure (NIBP) ............................................................... 13
Maternal arterial blood oxygen saturation (SpO2) .......................................................... 13
Block Diagram ............................................................................................................... 14

Home ............................................................................................................................. 22
Monitoring area .............................................................................................................. 25
Waveform Area .............................................................................................................. 28
Menu Screen ................................................................................................................. 31
Side Window .................................................................................................................. 33
Maternal monitoring Mode Screen ................................................................................. 36
Alert Screen ................................................................................................................... 38

Preparations Before Use ............................................................................... 39
5-1.

Checking the Main Unit ........................................................................................... 39

5-2.

Loading Recording Paper........................................................................................ 39

5-3.

Connecting Plugs .................................................................................................... 41

5-4.

Inspections before Use............................................................................................ 48

Using This Device .......................................................................................... 55
Actocardiograph MT-830 Operation Manual iii

6-1.

Registering Patient Information...............................................................................55

6-1-1.

Entering on a screen ...................................................................................................... 55

6-2.

Monitor the Doppler Fetal Heart Rate ......................................................................58

6-3.

Monitoring the External UC......................................................................................61

6-4.

Measuring maternal Non-Invasive Blood Pressure (NIBP) ....................................63

6-5.

Measuring maternal Arterial blood oxygen saturation (SpO2) ...............................69

6-6.

Monitoring the MHR with M.ECG Diagram Method.................................................72

6-7.

Start monitoring........................................................................................................75

6-7-1.
6-7-2.

Select Measure Mode to start monitoring ...................................................................... 75
Move the position of the Doppler transducer ................................................................. 79

6-8.

Registering an Internal Examination .......................................................................80

6-9.

Recording an Event ..................................................................................................82

6-10. Inputting the Apgar Score ........................................................................................84
6-11. Switch to Maternal Monitoring Mode.......................................................................87
6-12. Changing the Measure Mode ...................................................................................89
6-13. Printing the Monitoring Data....................................................................................90
6-13-1.
6-13-2.
6-13-3.
6-13-4.
6-13-5.

Print a Top Sheet ........................................................................................................... 90
Print item name .............................................................................................................. 90
Sample CTG Print .......................................................................................................... 92
Print the fetal movement mark ....................................................................................... 93
Stop printing................................................................................................................... 93

6-14. Suspending/Resuming Measurement .....................................................................94
6-14-1. Suspend Measurement .................................................................................................. 94
6-14-2. Resume Measurement................................................................................................... 95

6-15. Stopping Monitoring.................................................................................................96
6-16. Display the Stored Data............................................................................................97
6-16-1.
6-16-2.
6-16-3.
6-16-4.
6-16-5.

History Screen ............................................................................................................... 97
View the Stored Data ..................................................................................................... 98
Print the Stored Data ..................................................................................................... 99
Save (Copy) the Stored Data ....................................................................................... 101
Delete the Stored Data ................................................................................................ 102

6-17. Switching to Night Mode ........................................................................................104
6-18. Using Out of Hospital .............................................................................................105
6-19. Displaying the Side Window ..................................................................................106
6-20. Finishing Using the Device ....................................................................................107

7.

Actions for Alarms and Settings ................................................................. 109
7-1.

Actions for Alarms..................................................................................................109

7-1-1.
7-1-2.
7-1-3.
7-1-4.
7-1-5.
7-1-6.
7-1-7.

7-2.

List of Alarms ............................................................................................................... 110
Fetal Heart Rate Alarm ................................................................................................ 114
Maternal Heart Rate / Maternal Pulse Rate Alarm ....................................................... 115
Non-Invasive Blood Pressure (NIBP) Alarm................................................................. 116
Arterial Blood Oxygen Saturation (SpO2) Alarm ........................................................... 117
Paper Out Alarm .......................................................................................................... 118
Other Alarms ................................................................................................................ 118

Alarm Specifications .............................................................................................. 119

iv Actocardiograph MT-830 Operation Manual

7-3.

Alarm Settings ....................................................................................................... 121

7-3-1.
7-3-2.
7-3-3.
7-3-4.
7-3-5.

8.

Various Settings ........................................................................................... 127
8-1.

Setting Items List ................................................................................................... 127

8-1-1.
8-1-2.
8-1-3.

8-2.

8-3.

Measure Settings ......................................................................................................... 133
Select Sensor .............................................................................................................. 140
Display Items ............................................................................................................... 143

Device Settings Which Can be Changed by the User .......................................... 144

8-4-1.
8-4-2.
8-4-3.

8-5.

Opening the settings screen from the Home screen .................................................... 132
Display the Settings Screen from the Menu Screen .................................................... 132

Settings Related to Measurement ......................................................................... 133

8-3-1.
8-3-2.
8-3-3.

8-4.

Settings Which Vary Depending on the Patient’s Status During Monitoring................. 127
Device Settings Which Can be Changed by the User .................................................. 128
Admin Settings Which Can be Changed by the Administrator ..................................... 128

Display Settings Screen ........................................................................................ 132

8-2-1.
8-2-2.

Clock ............................................................................................................................ 144
Installation.................................................................................................................... 145
Other ............................................................................................................................ 146

Admin Settings Which Can be Changed by the Administrator ........................... 147

8-5-1.
8-5-2.
8-5-3.
8-5-4.
8-5-5.
8-5-6.
8-5-7.
8-5-8.
8-5-9.
8-5-10.
8-5-11.
8-5-12.

9.

Common ...................................................................................................................... 122
F.HR ............................................................................................................................. 123
M.HR / M.PR................................................................................................................ 124
NIBP ............................................................................................................................ 125
SpO2............................................................................................................................ 126

Enter a Password ........................................................................................................ 147
Function ....................................................................................................................... 148
Measurement ............................................................................................................... 150
Clinical Set ................................................................................................................... 156
Operation / display ....................................................................................................... 158
Network........................................................................................................................ 161
Sensor ......................................................................................................................... 164
Alarm ........................................................................................................................... 166
Print ............................................................................................................................. 167
Installation.................................................................................................................... 169
System ......................................................................................................................... 170
Device info ................................................................................................................... 171

Maintenance and Inspection ....................................................................... 173
9-1.

Cleaning and Sterilization ..................................................................................... 173

9-1-1.
9-1-2.
9-1-3.
9-1-4.
9-1-5.
9-1-6.

9-2.

Cleaning and Sterilization of Doppler/External UC Transducers .................................. 174
Cleaning and Sterilizing the Main Unit and AC Adapter ............................................... 174
Cleaning and Sterilizing the NIBP Cuff and Air Hose ................................................... 175
Cleaning and Sterilizing the Remote Marker Switch, M.ECG Adapter Cable, Clip
Electrode Lead, and Ultrasound Gel Bottle .................................................................. 175
Cleaning and Sterilizing the Transducer belt................................................................ 176
Cleaning and Sterilizing Other Optional Items ............................................................. 176

Inspections to be Conducted by Users ................................................................ 177

9-2-1.

About inspections ........................................................................................................ 177

Actocardiograph MT-830 Operation Manual v

9-2-2.
9-2-3.
9-2-4.
9-2-5.
9-2-6.

Inspection Checklist ..................................................................................................... 178
Inspecting the fetal heart rate alarm............................................................................. 181
Inspecting the Maternal Heart Rate / Maternal Pulse Rate Alarm ................................ 181
Inspecting the NIBP Alarm ........................................................................................... 181
Inspecting the SpO2 Alarm ........................................................................................... 182

9-3.

Inspection by Service Personnel ...........................................................................182

9-4.

Notes on Storage Precautions ...............................................................................183

9-4-1.
9-4-2.
9-4-3.
9-4-4.

Storage and transport conditions ................................................................................. 183
If the device is not going to be used for a long time ..................................................... 183
Storing the transducer.................................................................................................. 183
Storage of the NIBP Cuff and Air Hose ........................................................................ 183

10. Troubleshooting ........................................................................................... 184
10-1. General Problems ...................................................................................................184
10-2. NIBP Measurement Problems ................................................................................18710-3. SpO2 Measurement Problems ...............................................................................188
10-4. Maternal Heart Rate Measurement Problems .......................................................189
10-5. Recorder Problems.................................................................................................190

11. Specifications/Parts List ............................................................................. 191
11-1. Product Specifications ...........................................................................................191
11-1-1.
11-1-2.
11-1-3.
11-1-4.
11-1-5.
11-1-6.
11-1-7.
11-1-8.
11-1-9.

Material of the parts which touch the surface of the skin ............................................. 191
Device category ........................................................................................................... 191
Electrical rating ............................................................................................................ 192
Dimension/weight......................................................................................................... 192
Technical specifications ............................................................................................... 192
Electromagnetic Compatibility (EMC) Information........................................................ 197
Classification by sterilization methods ......................................................................... 202
Wiping test ................................................................................................................... 202
Classification by safety level in use in the presence of air and flammable anestheticgas, or oxygen or nitrogen monoxide and flammable anesthetic gas .......................... 202
11-1-10. Network........................................................................................................................ 202

11-2. Accessories/Options List .......................................................................................204
11-2-1. Accessories supplied ................................................................................................... 204
11-2-2. Options List .................................................................................................................. 205

11-3. Service Parts...........................................................................................................206

12. About Disposal and Warranty ..................................................................... 207
12-1. Service Life/Disposal..............................................................................................207
12-1-1. Service life ................................................................................................................... 207
12-1-2. Disposal ....................................................................................................................... 207

12-2. Warranty ..................................................................................................................207

Index .................................................................................................................... 209

vi Actocardiograph MT-830 Operation Manual

1 For Safe and Proper Use

1.

For Safe and Proper Use

1-1. Safety Precautions
The table below explains safety precautions that must be followed to use this device safely.

When using this device in combination with other ME devices, ground themequipotentially so that there is no potential difference between the devices.
Patients or operators may receive an electric shock if there is even a small potential
difference between chassis.
Follow the instructions in this operation manual. In case of any abnormality, stop using
the device immediately.
Be sure to inspect the device before use.
If you cannot confirm the proper condition during the inspection, turn off the power,
and remove the power plug from the outlet. Stop using the device, attach a “Failure”
indication, and contact us or our distributor to repair the device immediately.
If you are unsure of the accuracy of monitoring values, first use an alternative method
to check a patient's vital signs, and then check if the device is working correctly.
Do not use the device alone to reach a medical decision. It should be used in
combination with clinical signs and symptoms.
Do not disassemble or modify the device.
Failure to follow this instruction may result in failure or malfunction.
Do not apply a single device to multiple patients.
Failure to follow this instruction may result in failure or malfunction.
For safety, perform electrical safety testing of other medical devices such as cardiac
pacemakers, electrical stimulators, and others applied to the patient before using thefetal monitor.
If there is a concern of intrauterine fetal death when using this method, perform an
additional examination using another method.
It may cause a misdiagnosis.
To use identical or similar devices in the same facility, make the Alarm Settings
consistent among the devices. If the Alarm Settings are not consistent, a proper alarm
may not be issued.
During monitoring, doctors and health care workers (such as midwives and nurses)
being supervised by doctors should remain within hearing distance of the device sothat alarms can be heard.
In the event of a fetal heart rate alarm, initiate the appropriate measures under the
direction of a physician.
Failure to follow this instruction may result in an accident or other deterioration of the
fetus.
Actocardiograph MT-830 Operation Manual1

In the event of a Maternal Heart Rate / Maternal Pulse Rate alarm, initiate theappropriate measures under the direction of a physician.
Failure to follow this instruction may result in an accident or other deterioration of the
fetus.
In the event of an SpO2 alarm, initiate the appropriate measures under the direction ofa physician.
Failure to follow this instruction may result in an accident or other deterioration of the
fetus.
In the event of a NIBP alarm, initiate the appropriate measures under the direction ofa physician.
Failure to follow this instruction may result in an accident or other deterioration of the
fetus.
Be sure to connect to a grounded wall outlet using the provided three-pin plug power
cord.
Failure to follow this instruction may result in fire or electric shock.
The accessories connected to the analog or digital interfaces of this device must meetthe related IEC or JIS standards (ex: IEC 62368-1 for digital processing devices or
IEC60601-1 for medical devices). In addition, all configurations must conform to IEC
60601-1. Therefore, every person who connects additional devices to this device is
responsible for ensuring that the system conforms to the requirements in IEC 606011. If you have any questions, contact us or our distributor.
Do not insert or remove the plugs with wet hands.
Failure to follow this instruction may result in electric shock.
Use an isolation transfomer to supply power to non-medical electronic devices usedclose to expectant and nursing mothers.
Failure to follow this instruction may result in electric shock.
Do not use USB devices with their own power source unless used with an appropriate
isolation device.
Failure to follow this instruction may result in electric shock.
The device may cause radio interference with other devices in the vicinity resulting inpoor transmission. Such cases require measures to reduce the interference by usinga shield or changing the direction or installation location of the device.
Do not use this device close to, or stacked on top of, another device.
If the device must be used in such a way, confirm the correct operation in thearrangement to be used.
Do not use a microwave oven, microwave therapy device, or a device that uses
microwaves near this device.
Failure to follow this instruction may result in a malfunction.
Supervise and issue instructions not to bring mobile phones, transceivers, radio
controlled toys, and other similar devices into the room where the device is installedor around the antenna installed in the hospital for medical devices.
Do not use this device in an X-ray room, MRI room, image processing room, or withina strong high-frequency electromagnetic field such as from an electric scalpel.
Failure to follow this instruction may result in a malfunction.
2

Actocardiograph MT-830 Operation Manual

1 For Safe and Proper Use

Do not block the heat vent of the device.
Failure to follow this instruction may result in a fire or a device failure.
Do not place sensors or accessories which may fall onto patients.

Do not start up or operate the device unless it is confirmed to be ready for operation.
To prevent a potential breakage of cables, refrain from bundling the cables extremely
tight or wrapping them around the device.
Do not contact conductive parts of cables connected to the patient with otherconductive objects including an earth wire. Failure to follow this instruction may resultin a misdiagnosis by inaccurate recording of monitoring results.
Carefully wire cables when installing a sensor on a patient so that the cables will not
be tangled or tightened.
Be sure to use the specified accessories or options. Failure to follow this instruction
may increase electromagnetic radiation wave (emission) and degrade immunity for
disturbances.
Do not use this device close to, or stacked on top of, unspecified other devices.
If a noise-like sound is heard from the fetal monitor's speaker and monitoring valuesof biological information parameters are found to be affected by electromagnetic
interferences, a doctor or a qualified staff certified by a doctor should be responsiblefor determining if they may have an adverse effect on diagnosis or treatment of
expectant and nursing mothers.
Do not use a power cord and an AC adapter other than the provided ones.
Failure to follow this instruction may result in fire or electric shock.

Do not use in the following places. Failure to follow this instruction may cause an
explosion or fire. This device is not explosion-proof.
・Using the device in a hyperbaric oxygen therapy device
・Using the device in a flammable anesthetic gas or high concentration oxygen
atmosphere
・Using a defibrillator
This device is not intended to be used with high frequency surgical instruments(electrical scalpels) or used during defibrillation or MRI. Remove transducers,
sensors, and accessories from patients before using the high frequency surgicalinstrument (electrical scalpel) or working on defibrillation or MRI. Otherwise, a device
failure or injuries to the patient or operator may be caused.

Actocardiograph MT-830 Operation Manual3When a solution is spilled on the device, stop using the device and contact us or our
distributor.
Do not install the device at a location or environment where the patient canmanipulate.
Be sure to use the specified transducer.
Failure to follow this instruction may result in monitoring errors or failure.
Do not drop, hit, or subject the transducer to excessive impacts.
Do not hit the head of the Doppler transducer with too much force.
Failure to follow this instruction may result in monitoring errors or failure.
Do not exert excessive force on the pressure sensitive part of the External UC
transducer.
Failure to follow this instruction may result in monitoring errors or failure.
Use our specified parts or consumables used for the maternal heart rate monitoring.
Failure to follow this instruction may cause defective monitoring, including increased
artifacts.
Carefully apply the maternal heart rate monitoring to pacemaker users.
Be sure not to touch metallic parts of the M.ECG electrode to other conductive
objects.
Failure to follow this instruction may cause a device failure or an electric shock to thepatient.
Use our specified cuffs or relay air hose used for the maternal non-invasive bloodpressure (NIBP) monitoring.
Failure to follow this instruction may cause defective monitoring, including increased
artifacts.
Use our specified cuffs for the maternal non-invasive blood pressure (NIBP)
monitoring.
Failure to follow this instruction may cause irritated skin or allergy.
Do not use the device to monitor a neonatal non-invasive blood pressure (NIBP).
The device is intended for an adult's non-invasive blood pressure (NIBP) monitoring.
Use our specified parts or consumables for SpO2 monitoring.
Failure to follow this instruction may cause defective monitoring, including increased
artifacts. In addition, a legacy SpO2 patient cable or legacy SpO2 sensor which lacks
mock prevention measures cannot be used.
Use our specified remote marker switch.
Failure to follow this instruction may result in monitoring errors or failure.
Use our recommended USB memory.
Failure to follow this instruction may result in an unstable operation.
Contact us or our distributor for recommendations.

4

Actocardiograph MT-830 Operation Manual

1 For Safe and Proper Use
When operating the LCD screen (touch panel), touch the screen using the tip of yourfinger.
Do not operate it using your nails or hard objects such as a ballpoint pen or metal,
and do not rub or push with excessive force.
Failure to follow these instructions may cause a failure.
Do not use the device after its service life or count has expired.
The device body is not waterproof. Do not allow water to get inside the device.
Do not use any ultrasound gel other than our specified gel.
Failure to follow this instruction may result in damage such as failure.
In addition, using gel other than that specified by us may cause irritated skin orallergy.
Turn OFF mobile phones or compact radios (excluding PHS terminals authorized to
be used by the facility administrator) around patients.
Failure to follow this instruction may result in an erroneous monitoring value displayed
due to radio waves from the mobile phone or compact radio misread as a pulse wave.
The wireless LAN on the device can use bands of 2.4GHz and 5GHz. Regulations do
not allow 5.15 - 5.35GHz bands (W52, W53) to be used outside.
To use the device safely, keep it at least 20 cm away from people.
Use our specified recorder.
Failure to follow this instruction may result in monitoring errors or failure.

Actocardiograph MT-830 Operation Manual51-2. Meaning of the symbols on the device
(8)

(9)

(1)

(2)

Front

Back

Right-side

Left-side(11)(4)(10)(4)(10)

(3)

(6)
(7)

AC adapter

(5)

6

(12)

(13)

(3)

(16)

Actocardiograph MT-830 Operation Manual

(14)

(17)

(18)

(15)

1 For Safe and Proper Use■ Symbols based on IEC International Standards and Japanese Industrial
Standards
No.

SymbolName

No.

Symbol

Name

(1)

Alarm

(5)

DC power source(2)Stand-by(6)

Type BF applied part(3)

See the operation manual(7)

Type CF applied part

(4)

INPUT/OUTPUT■ Other Symbols
No.

SymbolName

No.

SymbolName(8)Mode selection

(14)

EFUP

(9)

Home

(15)

UL

(10)

I/O

Input/output(16)

CE marking

(11)

-

Battery replacement
YYMM

(17)

WEEE

(12)

TÜV Rheinland

(18)

FCC

(13)

China Compulsory
Certification marking

Actocardiograph MT-830 Operation Manual71-3. Meaning of the screen symbols on the device■ Symbols based on IEC International Standards and Japanese Industrial
Standards
No.

SymbolName

No.

SymbolName

1Heart mark (heart rate)

7

Start action

2

Alarm sound off

8Graphic recorder

3

Alarm function off

9

Timer

4

Alarm suspension

10

Speaker

5

Alarm

11

Time

6

ZeroSet■ Our own Symbols
No.

8

SymbolName

No.

SymbolName

1

Right fetal movement
marker5

Timestamp

2

Left fetal movement
marker6

Low battery

3

Heart beat monitoring
error

7

UC ZeroSet

4

Recording speed

Actocardiograph MT-830 Operation Manual

1 For Safe and Proper Use

1-4. EMC Compliance
The device is compliant with the Electro-medical Apparatus EMC Standards Edition 4 (IEC60601-12: 2014).
Remark: CISPR11: Group 1, Class B
For details, refer to P.197 "11-1-6 Electromagnetic Compatibility (EMC) Information".

1-5. Directive 2014/53/EU Declaration of Conformity
Hereby, TOITU CO., Ltd. declares that the radio equipment type MT-830 is in compliance with
Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the following internet address:
https://en.toitu.co.jp/Declaration_of_Conformity/

1-6. Using Wireless LAN or Bluetooth®
This product meets the following standards:
Type

Supported Standard

Wireless LAN■ IEEE802.11-2012 (a/b/g/n)■ IEEE802.11ac-2013

BluetoothBluetooth standard Ver. 5.1

As wireless LAN or Bluetooth uses a radio wave to send/receive data, a malicious third-party may
steal data or gain unauthorized access to internal data.
It is the customer's judgment and responsibility to use the device with security settings in place.
The wireless LAN on the device can use bands of 2.4GHz and 5GHz. Regulations do not allow 5.15
- 5.35GHz bands (W52, W53) to be used outside.

1-7. Licensing the Device
The MT-832-L and MT-832-P come with A&D's integrated NIBP module TM-2917.
Masimo Corporation's pulse oximeter can be connected to the MT-832-L and MT-832-P during use.
Ownership or purchase of the device (when the device is used solely or combined with otherdevices) should not be transferred, whether the license is clarified or not, as far as one or more
patents related to the device exist (including use of unauthorized spare parts).
The device is protected by one or more of the following US patents:
5,758,644, 5,823,950, 6,011,986, 6,157,850, 6,263,222, 6,501,975
In addition, patents applied other than those listed above can be found in
www.masimo.com/patents/.

The device is certified and authorized to be compliant with the Bluetooth standard as defined byBluetooth SIG.
Bluetooth® is a registered trademark of Bluetooth SIG, Inc. in the U.S.
Actocardiograph MT-830 Operation Manual92.

Product Overview

2-1. Feature
The device is a fetal monitor intended to detect the fetal heart rate (single, twin, triplet fetus/es) anduterine contractions, as well as to monitor the maternal conditions, including the maternal heart rate,
NIBP (Non-Invasive Blood Pressure), and SpO2 (arterial blood oxygen saturation) etc.
This device can be used from mid-pregnancy to delivery.
The main features are as follows.
● Clear display
10-inch color TFT LCD displays large texts and images of the recording paper.
● Touch panel operation
Touch and hold operation is realized by utilizing a resistive touchscreen.
● CTG (CardioTocoGram) data storage
Saves the latest 72-hours of CTG data in the built-in memory. The stored data can beviewed/played as well as copied to a USB memory.
● Battery-driven operation
The device can operate for 120 minutes when it is disconnected from the power source (withthe battery fully charged).
The recorder unit (MP-130) (sold separately) can also print without connecting to the power
supply.
● Maternal NIBP monitoring
The MT-832-L and MT-832-P use A&D's integrated NIBP module TM-2917 to measure thematernal BP and PR. A cuff is used to press the artery externally to determine the max. min.
and average BP values from the fluctuation of air vibration observed under changes inpressure.
● Maternal SpO2 monitoring
A pulse oximeter (manufactured by Masimo Corporation) can be connected to the MT-832-L
and MT-832-P to monitor SpO2. Favorable SpO2 monitoring can be expected even underconditions where monitoring is difficult due to patient's body movement or low perfusion.
● Maternal Heart Rate monitoring
Monitors the MHR from M.ECG using ECG electrodes. A pulse as well as M.ECG waveform
can be checked and the leads can be switched.
● Data printing
A recorder (sold separately) can be used to print out CTG data being monitored and logged.

10

Actocardiograph MT-830 Operation Manual

2 Product Overview● A range of model offerings
The device line up offers a range of accessories and options for different applications, andprovides four different models, each of which has different functions available.
In this manual, the model name is clarified for functions available limited to that model.
MT-832-L / P: Function available only for the MT-832-L and MT-832-P models

MT-831-S / MT-832-P: Function available only for the MT-831-S and MT-832-P models

Function
Fetal
Measurement

External method• FHR: Ultrasound Doppler
methodMT-831-L

MT-831-S

MT-832-L

MT-832-P

○

○

○

○

－

○

○

－

Optional

Optional○○○○
Optional○• External UC
Maternal
Non-invasive blood pressure－
Measurement (NIBP)
Arterial blood oxygen－
saturation (SpO2)
PR－(from NIBP or SpO2)
Pulse (from M.ECG)－
Print
Optional
Wireless LAN－: As standard
Optional: Available as an option○－－
Optional○

Optional－

Actocardiograph MT-830 Operation Manual112-2. Supplementary Functions
Function Name

12

Explanation of the Function

Fetal movementmonitoring

Monitors and records the fetal movement for up to three fetuses(there are two monitoring methods: automatic monitoring using
ultrasound and manual monitoring when the mother recognizes the
fetal movement).

Contraction cycle
monitoring

Automatically monitors/displays/prints the contraction cycle.

External output

Provides CTG data output to the central monitor.

Timer function

Stops monitoring automatically after a specified time andautomatically starts monitoring when the specified conditions are
met.

Monitoring data storage
function

Stores and displays the monitoring data to the main unit or aremovable media.

Recording/system
function

Stores/reads the monitoring data to/from the storage media via
systems such as external devices or communication devices(including wireless devices).

Display function

Shows information such as CTG patterns as an image.

Actocardiograph MT-830 Operation Manual

2 Product Overview

2-3. Principle
2-3-1. Fetal heart rate
Fetal heart rate is detected by using the ultrasound Doppler method. When high-frequency voltage isapplied to the Doppler transducer, the element in it vibrates and emits ultrasound. When thisultrasound is delivered to the heart of the fetus through the maternal abdominal wall, it is reflected by
the movement of the heart valve and wall, bloodstream (heartbeat signal), the roll of the fetus,
movement of the fetus limbs (fetal movement signal), and then returned to the transducer. The
received ultrasound undergoes signal processing and is separated using the difference in heartbeat
and fetal movement signals. The heartbeat signal can be heard from the speaker since it is within
the range of human audibility.

2-3-2. Uterine Contraction
A contraction (uterine contraction) signal is detected by using the strain gauge. When the External
UC transducer containing the strain gauge is fixed to the abdominal wall at the uterine fundus, theresistance value changes when a strain is applied to the strain gauge due to the uterine
contractions. A contraction (uterine contraction) signal is detected by detecting changes in thisresistance.

2-3-3. Maternal Heart Rate
The maternal heart rate is detected by using the M.ECG method. A bipolar induction method is used
to monitor M.ECG and detect MHR from between M.ECG R waves' interval. A pulse as well as
M.ECG waveform can be checked and the leads can be switched.

2-3-4. Maternal non-invasive blood pressure (NIBP)An oscillometric method is used to monitor artery BP non-invasively.
A gradual pressurization or depressurization of cuffs wrapped around limbs superimposes vibrationfrom artery pulsation on the cuff pressure. The vibration shows a chevron shape where it gradually
becomes larger as the cuff pressure changes and smaller accordingly after reaching the peak
amplitude.
The oscillometric method calculates the BP value non-invasively, looking at the relationship between
the amplitude of the vibration and the associated cuff pressure.

2-3-5. Maternal arterial blood oxygen saturation (SpO2)
An arterial blood oxygen saturation and PR(Pulse rate) are monitored by monitoring the absorbanceof a specific beam's wavelength. The probe has a light-emitting element and an element which
detects a beam passing through the organization. This is capable of averaging the artery's functional
oxygen saturation (saturation percentage obtained from oxidized hemoglobin divided by totalhemoglobin) and PR.
As well as arterial blood oxygen saturation monitoring, the original waveform of a pulse wave can be
identified with the fetal monitor operation.

Actocardiograph MT-830 Operation Manual132-3-6. Block Diagram
MT-830AC adapter
ATM065T-P240

DC jack
I/O 1

Recorder unit
MP-130Y-shaped Doppler/External UC
Transducer TR-687-06
Doppler transducer
TR-629-06
External UC transducer
TR-619-06

Remote marker switch(Single SW-527-01/twins SW-527-02)

ControlboardPower/control

I/O 2
I/O 3

SensorConnector
SensorConnector
SensorConnector

LCD with touch
panel

Switchconnector
I/O 4

SpO2 patient cable
uSpO2

I/O 5

NIBP air hose for adults(with ISO one-touch connector)

NIBP
connector

M.ECG adapter cableTR-655-05

M.ECG
connector

Speaker

Battery* The remote marker switch for either single or twins can be connected to the switch connector.

14

Actocardiograph MT-830 Operation Manual

2 Product Overview

2-4. Usage Environment
Use the device under the following conditions.
Field

Condition

Ambient temperature

10 to 40°C

Relative humidity

30 to 70% (no condensation)

Atmospheric Pressure

700 to 1060 hPa

Other conditions• A room without the risk of explosion• A place where the provided power cord can be connected toan AC commercial power outlet in the hospital or clinic
building• A stable, flat surface with a space of more than 40 mm at therear, 30 mm on the right, and 70 mm on the left when viewed
from the front (as shown below）

40 mm

30 mm

70 mm

Front

Actocardiograph MT-830 Operation Manual

15

3.

Package Contents

This device consists of the main unit, accessories, and options. Check the package contents before
use. In addition, standard accessories depend on the model, and the accessories may be included
with the main unit or sold separately due to failures, replenishment, and so on.

3-1. Accessories
(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

MT-832-L / P

MT-832-L / P

(9)

16

Actocardiograph MT-830 Operation Manual

3 Package Contents
No.

Name

Function and Operation(1)

Power cord

Used to connect to a commercial power
supply.

(2)

AC adapter

Used to connect the main unit with thepower cord.

(3)

Y-shaped Doppler/ External UC transducer

Used for monitoring Fetal heart rate by
ultrasound and External UC.

(4)

Remote marker switch (single)

A hand-held switch used to record
maternal perception of fetal movement.

(5)

Transducer belt x 2(Pink, green)

Used to affix the transducer onto theabdominal wall.

(6)

Ultrasound gel

Used to reduce ultrasonic attenuation
between the Doppler transducer and theabdominal wall.

(7)

BP monitor set• NIBP wide-range cuff

Used for monitoring maternal BP.

• NIBP air hose for adults(8)

M.ECG set
• M.ECG adapter cable

Used for monitoring MHR by using theM.ECG method.

• Clip electrode lead (R: Red) (F: Green)(L: Yellow)(9)

Ferrite core

Connect this part to the LAN cable used
for communication with the central
monitor when using the MT-831-S andMT-832-P. For details on connecting thispart, see Step 1 of P.46 "(8) Connect theaccessories" .

* This ferrite core is attached only to theexport versions MT-831-S and MT-832-P.
It is not attached to MT-831-L and MT832-L.

－

Operation Manual (This document)* For product codes, refer to P.204 "11-2-1 Accessories supplied".

Actocardiograph MT-830 Operation Manual173-2. Major Options
(1)

(2)

(4)

(3)

(5)
MT-832-L / P(6)
MT-832-L / P

18

Actocardiograph MT-830 Operation Manual

3 Package Contents

No.

Name

Function and Operation(1)

Doppler transducer

Used for monitoring Fetal heart rate by
ultrasound in the case of multi-fetuses.

(2)

External UC transducer

A transducer used to monitor uterine
contraction.

(3)

Remote marker switch(for twins)

A hand-held switch for twin fetuses used torecord maternal perception of fetal movement.

(4)

Recorder unit
MP-130Prints the monitoring data and parameters.

(5)

SpO2 reusable sensor for adults
LNCS DCI

A reusable sensor for SpO2.

(6)

SpO2 monitor set• SpO2 patient cable

Used for monitoring maternal arterial blood
oxygen saturation and a pulse wave.

• SpO2 disposable sensor for adults(20 sheets/box)* Available options vary depending on the model. For details, refer to P.10 "2-1 Features".
* For product codes and other options, refer to P.204 "11-2-2 Options List".

Actocardiograph MT-830 Operation Manual

19

4.

Part Names and Functions

4-1. Main Unit
4-1-1. Front and Right Side
(2)

(3)

(4)

(1)

(5)
(6)

(8)
(9)
(10)
(7)

No.

Name

Function and Operation(1)

LCD screen

Displays the fetal heart rate and can be operated by the touch
panel.

(2)Mode selection button

Switches the Measure Mode (Delivery/NST/Maternal).
Delivery screen is used for monitoring the fetus and maternal
status during delivery, NST screen (None-Stress Test) is used
for checking the fetal status for a certain period when delivery
has not yet started, and Maternal screen is used for monitoring
the maternal status after delivery.
You can configure the measurement time, waveform size,
printing, and NIBP measurement method for each mode in
Admin Settings (see P.151 "8-5-3-2 Measure Mode").

(3)

Alarm button

Pauses/resumes an alarm.

(4)Home button

Returns to the Home screen when a screen other than Homeis displayed. When Home is displayed, the button works thesame way as the information display on the bottom (see (15)on P.22 “4-2-1 Home".

(5)Power indicator20● (On) Power-on● (Flashing) Charging (during power-off)● (On) Battery full (during power-off)● (Off) Power-off (AC adapter not connected)

Actocardiograph MT-830 Operation Manual

4 Part Names and Functions
No.

Name

Function and Operation(6)

Power button

Turns the device ON or OFF.

(7)

Speaker

Outputs Doppler sounds, alarms, and other operating sounds.

(8)

I/O 2 connector
I/O 3 connector

Used to connect options (e.g. a recorder specified, or a USB
memory).

(9)

I/O 1 connector

Used to connect TOITU central monitor (LAN).
A wired LAN is used for communication when a LAN cable isconnected, and a wireless LAN is used when it is not.
When switching between wired and wireless LAN when OBIS
central is used, OBIS CTG data will be split.

(10)Power jackUsed to connect the AC adapter.

* Press and hold the button for more than 5 seconds when the
power is ON to turn off the device completely.

4-1-2. Rear and Left Side
(6)

(1)

(2)
(3)
(4)
(5)

No.

Name

Function and Operation(1)

Sensor connector

Used to connect the Y-shaped Doppler/External UC transducer,
Doppler transducer, External UC transducer.

(2)

Switch connector

Used to connect the remote marker switch.

(3)

I/O 4 connector
I/O 5 connector

Used to connect options (e.g. a recorder specified, or a USB
memory, and SpO2 patient cables.

(4)

NIBP connector

Used to connect an air hose for adults to monitor the maternal
non-invasive blood pressure.

(5)

M.ECG connector

Used to connect the M.ECG adapter cable for the maternal heart
rate monitoring.

(6)

Heat ventExhausts heat from inside the device.

Actocardiograph MT-830 Operation Manual21

4-2. Display
4-2-1. Home
(2)

(3)

(5)

(4)

(6)

(7)

(8)

(9)

(1)
(10)

(11)

(13)

(14)

(12)

With the side window displayed

(16)

22

Actocardiograph MT-830 Operation Manual(15)

4 Part Names and Functions
No.

Settings Item

Function and Operation(1)

Status bar

Displays the product, patient data, elapsed time, device status,
and the current time, etc. For details, refer to (2) to (9) below.

(2)

Waveform display
time selection

Sets and displays the current CTG waveform display time
(10min/15min/40min/FULL SIZE/Number) (Refer to P.28 “4-2-3
Waveform Area").

(3)

Product information
display (ID)

Displays the monitor ID. Touch this to show the serial number andbattery charge of the device.

(4)

Patient information

Displays the patient information.

(5)

Free space

Displays the monitoring information and alarm information, etc.

(6)

Measure Modedisplay
Status display

Displays the current Measure Mode (NST Mode/Delivery
Mode/Maternal monitoring mode).
Displays the following icons depending on the state of the device.

(7)<Measurement state>: Measuring: Suspending measurement<Central monitor connection status>: Connected to wired LAN: Connected to wireless LAN: Out of Hospital: Not connected* The signal strength is also shown along with the icon "Connected towireless LAN".

<Printing>: Printing＜Recorder paper level＞: No recorder paper left

: Low recorder paper level＜Recorder battery level＞: No battery left
(8)

Battery/
drive state: Low battery level: Using the battery. The battery level is also shown.
: Using AC power. The battery level is also shown.

(9)

Date

Displays the current date in YYYYMMDD and time in HH:MM:SS.

(10)

Monitoring value
area

Displays the monitoring values and alarm status (refer to P.25 "42-2 Monitoring area").

Actocardiograph MT-830 Operation Manual

23

No.

Settings Item

Function and Operation(11)

Waveform area

Displays the waveform elapsed for the selected CTG waveform
duration starting from the latest (rightmost) monitoring value. In
addition, for 40 min. waveform mode, the latest information isshown on the lower right while the oldest information is on theupper left.
Press and hold the waveform to shows the elapsed waveform(refer to P.97 "6-16-1 History Screen").

(12)

Bottom button

Displays a range of setting screens and side windows, andperforms actions. Buttons shown vary depending on the Measure
Mode and the device status. For the buttons, refer to P.31 "4-2-4
Menu Screen", P.33 "4-2-5 Side Window".

* You can select the bottom buttons to locate from menus and theside window from the Admin Settings (refer to P.158 "8-5-5
Operation / display").

(13)

Menu display

Displays the Menu screen (refer to P.31 "4-2-4 Menu Screen").

(14) Side window display

Select items to display on the side window panel on the left of theHome screen (refer to P.33 "4-2-5 Side Window"). While the side
window panel is active, the button changes to, you cantouch the button to exit the side window.
Displays information on the sensor status, events, and internal
examination on the screen. With every single touch of the button,
the icon changes from "Show only icon" → "Show details" →"Nothing shown" in this sequence.

(15) Information display• Show only icon (ex.):• Show details (ex.):• Sensor status (ex.):* You can configure the display method from the Admin Settings (refer
to P.152 "8-5-3-3 Info display").

(16) Side window

24

Displays desired information on the left of the Home screen (refer
to P.33 "4-2-5 Side Window"). Turning the device OFF hides theside window.

Actocardiograph MT-830 Operation Manual

4 Part Names and Functions

4-2-2. Monitoring area
Fetal heart rate (FHR)
(4)

(5)

Maternal heart rate

(1)
(2)
(3)
Maternal pulse rate

(6)
Uterine contraction value (External UC)(7)

Maternal arterial blood oxygen
saturation (SpO2)

(8)
(9)

(10)

Maternal non-invasive blood pressure (NIBP)

(11)

(12)

No.

Settings Item

Function and Operation(1)

Select Heartbeat
sound symbol

Displayed in the monitoring area of the sensor emitting a heartbeat
sound (refer to P.133 "8-3-1-1 Common").

(2)

Heartbeatsynchronization
symbolFlashes in synchronization with the heartbeat.
The color changes to “green > yellow > red” depending on the stateof the heart rate input signal (refer to P.59 "(2) Decide on theposition").

(3)

Status of alarm
setting

Displays the Alarm Settings status and an alarm state (refer to P121
"7-3 Alarm Settings").
The alarm is muted
One or more conditions in the Alarm Settings are disabled
The alarm is suspended
Actocardiograph MT-830 Operation Manual

25

No.

Settings Item

(4)

Type of monitoring
value

Displays the type of monitoring value displayed:
FHR1: Fetus 1 heart rate
FHR2: Fetus 2 heart rate
FHR3: Fetus 3 heart rate
E.UC: Uterine contraction value
MHR: Maternal heart rate
MPR: Maternal pulse rate
NIBP: Maternal non-invasive blood pressure
SpO2: Maternal arterial blood oxygen saturation(5)

Sensor type

Displays the type of sensor used for monitoring:
Doppler: Doppler transducer* The Doppler SH is monitoring in Single Heart mode (Refer toP.134"8-3-1-2 F.HR / FM").
E.UC: External UC transducer* For E.UC[Hi], Uterine contraction value is monitored with UC
Sensitivity as High (Refer to P.136 "8-3-1-3 UC").

(6)

Monitoring value

Displays monitored values (Fetal heart rate/Uterine contraction
value/Maternal heart rate/Maternal pulse rate/Maternal non-invasive
blood pressure (NIBP)/Maternal arterial blood oxygen saturation(SpO2)).

(7)

UC calculation
value

Displays the duration of an intermittent UC (or UC cycle) or UC
onset, or UC count per 10 minutes. Only a single item is shown when
the display area is small, however, touching the area shows all items.
You can configure items to display from the Admin Settings (refer toP.152 "8-5-3-3 Info display").

(8)

PI value

Displays a PI value (PERFUSION INDEX).
The PI value is a perfusion index which indicates a ratio of pulsatileblood volume against non-pulsatile blood volume in a peripheral
tissue. The value ranges from 0 to 20%, and the larger the value is,the more accurate the monitoring value.
You can hide this from the Admin Settings (refer to P.152 "8-5-3-3
Info display").

(9)

BP measurement
start time

Displays the BP measurement start time.

(10)

Time-to-the next
BP measurement

Displays the time remaining before the next BP measurement starts.

(11)

SI value

Displays an SI value (shock index). The SI value is calculated with
Maternal heart rate / Maternal pulse rate (bpm) devided by Systolic
BP (mmHg), and the Maternal heart rate/Maternal pulse rate is
calculated using the Maternal ECG pulse rate when the M.ECG
adapter cable is connected and using the NIBP pulse rate when it is
not connected.
You can hide this from the Admin Settings (refer to P.152 “8-5-3-3
Info display”).

(12)

Mean BP /Cuff’s
pressure value

Displays the pressure value of the cuff during monitoring and theMean BP value of the monitoring result after monitoring is complete.

26

Function and Operation

Actocardiograph MT-830 Operation Manual

4 Part Names and Functions* Press and hold the Monitoring area on each sensor to go to the Measure Settings screen of the sensor.
* Touch the Monitoring area of FHR, MHR, and MPR to change the monitor and synchronous soundplayed back.
However, touching the area when an alarm has occurred switches the device to alarm suspension
status. Touch it again during this alarm suspension status to change the monitor and synchronous
sound played back.

Actocardiograph MT-830 Operation Manual27

4-2-3. Waveform Area
Touching
at the top left of the screen allows you to switch the display mode of the waveform(10min/15min/40min/FULL SIZE/Number). In FULL SIZE waveform, the waveform is displayed at thesame size as the recording paper for printout.
(1)

(12)

(13)

(14)(15)(16)

(18)

(17)

(2)
(3)
(4)
(5)
(6)
(7)
(9)

(8)

28

(10)

(11)

No.

Settings Item

Function and Operation(1)

Icon of a sensor
showing waveforms(2)

Fetus 1 to 3 heart
rate waveform(3)

Maternal SpO2
waveform

Displays the maternal SpO2 value as a waveform.* 1
Displayed as a waveform when waveform display mode isselected in the Admin Settings (Refer to P.153 “8-5-3-4
Waveform”).
However, SpO2 is not displayed as a waveform but displayed
numerically when the MHR/MPR is displayed as a waveform for 3
fetuses.

(4)

Maternal Heart Rate
(Maternal Pulse
Rate) waveform

Displays the maternal heart rate (MHR) or pulse rate (MPR) as a
waveform.* 1
MPR is displayed as a waveform when waveform display mode isselected in the Admin Settings (Refer to P.153 “8-5-3-4
Waveform”).

(5)

Fetus 1 to 3 ACT
marking

Displayed when the fetal movement of each fetus 1 to 3 exceeds
the threshold of FM dot specified in P.134 “8-3-1-2 F.HR / FM”.* 1
This can be set to hidden referring to P.152 “8-5-3-3 Info display”.

(6)
(7)

UC value waveform
Fetus 1 to 3ACT

(8)

ZeroSet marking

Displays the UC value (UC) as a waveform.* 1
Displays the fetal movement of fetus 1 to 3 as a waveform.* 1
This can be set to hidden referring to P.152 “8-5-3-3 Info display”.
Displays when ZeroSet is executed.

Displays the type of sensor showing waveforms * 1

Displays the heart rate of fetus 1 to 3 (FHR1-3) as a waveform.* 1

Actocardiograph MT-830 Operation Manual

4 Part Names and Functions
No.

Settings Item

(9)

Uterine contraction
cycle(10) Maternal BP (Max.
Min. Ave.), SI(11) Maternal SpO2
value, Maternal
Pulse Rate value(12) ↓ R.O. marking(13) ↑ R.O. marking(14) Signal Error marking(15) Remote marker right(16) Remote marker left
(17) Event

Function and Operation
Displays the UC cycle.
Displays the results of NIBP measurement and SI value.
Displayed every five minutes when Number mode is selected in
the Admin Settings when the SpO2 sensor is connected (refer toP.153 “8-5-3-4 Waveform”).
Displayed when the heart rate goes beyond the bottom of the
waveform display area.
Displayed when the heart rate goes beyond the top of the
waveform display area.
Displayed when a signal error alarm is issued.
Displayed when the remote marker switch (single) or the right
remote marker switch (twins) is operated.
Displayed when the left remote marker switch (twins) is operated.
Displayed when an event is registered.
Select to display or hide this on P.152 “8-5-3-3 Info display”.

• Show only icon (ex.):• Show details (ex.):(18) Internal Examination

Displayed when an internal examination is registered.
Select to display or hide this on P.152 “8-5-3-3 Info display”.

• Show only icon (ex.):• Show details (ex.):*1 Displayed in the same color as the monitoring value area.

Actocardiograph MT-830 Operation Manual29The waveform is displayed on the actual screen for the following duration:• 10min waveform → 11 minutes• 15min waveform → 15 minutes• 40min waveform → 46 minutes
In addition, the duration above is when the track speed is 30mm/min. The duration is 3 times longer
when the track speed is 10mm/min. The duration is 1.5 times longer when the track speed is 20mm/min.

15min waveform

10min waveform

The monitoring value is shown above while the
CTG waveform for 10 minutes is shown below

The monitoring value is shown above while the
CTG waveform for 15 minutes is shown below

40min waveform

FULL SIZE waveform

The monitoring value is shown above while
the CTG waveform for 40 minutes is shown
below in two tiers

The monitoring value is overlaid on the CTG
waveform and shown on the left
(The Bottom button will be hidden)

Only Number

Only the monitoring value is shown without the CTG
waveform

30

Actocardiograph MT-830 Operation Manual

4 Part Names and Functions

4-2-4. Menu Screen
The Menu screen is displayed when you touch theare shown on the Bottom button.

(Menu) Bottom button. Some of the menus

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(14)

(15)

(16)

(17)

(18)

(19)

(20)

(8)
(9)
(10)
(11)
(12)
(13)

No.

Settings Item

Function and Operation(1)

PrepareAllows you to enter patient information or select a preset before
starting monitoring (refer to P.55 “6-1 Registering Patient
Information”).

(2)

ZeroSetSets the UC value to "12" units. Set to "0" by holding this button(refer to P.62 “(3) Set UC ZeroSet”).

(3)

MeasureAllows you to start monitoring, store monitoring data, and send themonitoring data to the central monitor (refer to P.75 “6-7 Start
monitoring”).
Set to start monitoring without showing the Start screen in the
Admin Settings (refer to P.150 “8-5-3-1 Power-on/off”).

(4)

NIBP

Starts one NIBP measurement (refer to P.63 “6-4 Measuring
maternal Non-Invasive Blood Pressure (NIBP)”).

(5)

NIBP Auto

Performs continuous NIBP measurements (refer to P.63 “6-4Measuring maternal Non-Invasive Blood Pressure (NIBP)”).

(6)

Print

Starts CTG printing on recording paper when a recorder (soldseparately) is connected (refer to P.90 “6-13 Printing the Monitoring
Data”).

Actocardiograph MT-830 Operation Manual

31

No.

32

Settings Item

Function and Operation(7)

M.Monitor

Starts maternal monitoring. This is also lined up on the Bottom
button in Delivery mode.

(8)

Apgar Score

Input Apgar score (refer to P.84 “6-10 Inputting the Apgar Score”).

(9)

Event

Input an event (refer to P.82 “6-9 Recording an Event”).

(10)Internal Exam.

Input an internal examination (refer to P.80 “6-8 Registering an
Internal Examination”).

(11)

Display Items

Select items to display on the screen (refer to P.143 “8-3-3 Display
Items”).

(12)

Select Sensor

Select a sensor used respectively for Doppler, External UC,
Maternal ECG, NIBP and SpO2 (refer to P.140 “8-3-2 SelectSensor”).

(13)

Measure Mode

Select a Measure Mode (NST Mode/Delivery Mode/Maternalmonitoring mode) (refer to P.89 “6-12 Changing the MeasureMode”).

(14)

Measure Settings

Make settings for measurement (refer to P.133 “8-3 Settings
Related to Measurement”).

(15)

Alarm Settings

Make settings for On/Off and the threshold, etc. of an alarm (refer
to P.121 “7-3 Alarm Settings”).

(16)

Device Settings

Make device settings, including the time and installation (refer toP.144 “8-4 Device Settings Which Can be Changed by the User”).

(17)

Admin Settings

Make settings on measurement, devices, and the system that canbe accessed by the administrator (refer to P.147 “8-5 Admin
Settings Which Can be Changed by the Administrator”).
You can set a password used to open the Settings screen.

(18)

MemoryPlays and prints past monitoring data in the internal memory or
USB memory. Data in the internal memory can also be copied to
the USB memory (refer to P.97 “6-16 Display the Stored Data”).

(19)

Night Mode

Select a mode suitable for night time by adjusting the screen
brightness (refer to P.104 “6-17 Switching to Night Mode”).

(20)

Out of Hospital

Select Out of Hospital mode (refer to P.105 “6-18 Using Out of
Hospital”).

Actocardiograph MT-830 Operation Manual

4 Part Names and Functions

4-2-5. Side Window
When(Side Window) is touched on the Bottom button to select an item, the side window
panel can be displayed on the left.
Turning the device OFF hides the side window.

Select items to showon the side window"Event list" is selected

Close side window button
Side window

Actocardiograph MT-830 Operation Manual

33

34

(1) Internal Examination list(2) Event list(3) Apgar Score(4) Maternal Vital list(5) Alarm History(6) Volume

Actocardiograph MT-830 Operation Manual

4 Part Names and Functions
No.

Settings Item

Function and Operation(1)

Internal Examination
list

Displays the entries of internal examinations by “Time of
examination” and “Elapsed time” (refer to P.80 “6-8 Registering an
Internal Examination”).

(2)

Event list

Displays the entries of events by “Time of occurrence” and“Elapsed time”. Touch an event to show more details of the event(refer to P.82 “6-9 Recording an Event”).

(3)

Apgar Score

Displays the Apgar Score entered for each fetus. Touch [Input] toenter a score or record a fetal delivery (refer to P.84 “6-10Inputting the Apgar Score”).

(4)

Maternal Vital list

Displays the maternal vital information by “Measurement time”
and “Elapsed time”. In maternal monitoring mode, the window canbe resized with
(Minimized) and(Maximized).

(5)

Alarm History

Displays the alarms issued by “Time of occurrence” and “Elapsedtime”.

(6)

VolumeDisplays the Doppler sound volume and MHR/MPR
synchronization volume. The current volume is shown in numbers(0-15). Touch the up/down button or move the slider directly toadjust the volume.
To mute, touch the number. Touch the number again to unmute.

• To print a list, touch(Print) at the top right of the window when a recorder (sold separately) isconnected.

• Touch• Touchor

to switch to the previous or next page.

or

to switch to the first or last page.

Actocardiograph MT-830 Operation Manual354-2-6. Maternal monitoring Mode Screen
Maternal vitals are displayed on a screen in Maternal monitoring Mode.
Touch(Minimized) to move the vitals list to the side window and display the waveform.

(3)
(4)
(5)

(1)

(6)
(7)

(2)

(8)
(9)

(10)

No.

Function and Operation

(1)

Tab

Select “Measured time” or “Elapsed time”.

(2)

Maternal Vital list

Displays the value of MHR, PR, BP, SI, and SpO2 by time unit.

(3)(Print)Prints the Maternal Vitals list when a recorder (sold separately) isconnected.

(4)(Minimized)

Moves the Maternal Vitals list to the side window and displays the
waveform.

(5)(Maximum)

Returns the Maternal Vitals list to its full size.

(6)(first page)

Displays the first page.

(7)(previous page)

Displays the previous page.

(8)(next page)

Displays the next page.

(9)(last page)

Displays the last page.

(10)

36

Settings Item

Apgar Score

Displayed when a delivery event is entered. Input an Apgar score.

Actocardiograph MT-830 Operation Manual

4 Part Names and Functions■ Printing the Maternal Vitals list
Touch
(Print) to print a list of measurement times and details of the maternal vitals when arecorder is connected. Up to 1000 entries of maternal vitals will be printed.

(1)
(2)

(3)

No.

Settings Item

Function(1)

Printout date/time

Prints out the date and time on which the list was printed.

(2)

Patient information

Prints out the patient ID and the patient’s name.

(3)

Maternal Vitals

Prints out the measured date and time and details.

Actocardiograph MT-830 Operation Manual374-2-7. Alert Screen
An alert is shown when:• the connection with the central monitor is complete,• the device failed to connect to the central monitor, or• connection with central monitor has been lost.

Press thebutton on the upper right to exit the Alert screen, but the screen will automaticallydisappear after 10 seconds of no operation.

38

Actocardiograph MT-830 Operation Manual

5 Preparations Before Use

5.

Preparations Before Use

Place the device in a location that meets requirements (refer to P.15 “2-4 Usage Environment”).
The unit is not sterilized before shipment. Be sure to sterilize and clean before use (refer to P.173 “91 Cleaning and Sterilization”).

Do not use in the following places. Failure to follow this instruction may cause an
explosion or fire. This device is not explosion-proof.
• Using the device in a hyperbaric oxygen therapy device• Using the device in a flammable anesthetic gas or high concentration oxygen
atmosphere• Using a defibrillator
This device is not intended to be used with high frequency surgical instruments(electrical scalpels) or used during defibrillation or MRI. Remove transducers,
sensors, and accessories from the patient before using the high frequency surgicalinstrument (electrical scalpel) or working on defibrillation or MRI. Otherwise, a device
failure or injuries to the patient or operator may be caused.

5-1. Checking the Main Unit
Make sure that the main unit is correctly installed without the risk of a falling hazard.
Make sure that the main unit is not damaged or deformed.

5-2. Loading Recording Paper
Load recording paper before measurement when a recorder (sold separately) is connected.

For details on the recorder, refer to “Recorder Unit MP-130 Operation Manual”.

Do not use any recording paper other than the paper specified.
Unspecified recording paper may cause a misdiagnosis by incorrectly recording
monitoring results.
If a recorder that was used with another fetal monitor is used, be sure to cut off therecording paper. Failure to follow this instruction may result in a mix-up of patients.

Actocardiograph MT-830 Operation Manual39

(1) Open the cover
1. Press the cover open button of the recorder down.
The cover is unlocked and opens towards you.

Cover open button(2) Load the recording paper
1. Remove the recording paper from the bag and loosen them lightly.
2. Hold the paper with the cut edges facing up and insert them into the tray overthe protruding parts inside the recorder.

Protruding part

3. Set the top paper within the guide and pull it out of the cover.

Front face

Guide

40

Actocardiograph MT-830 Operation Manual

5 Preparations Before Use(3) Close the cover
1. Push the cover back while holding the recording paper.
You will hear a click when it locks into place.

5-3. Connecting Plugs
Make sure that the power cord and cables are not damaged or deformed before connecting theplugs.

(1) Connect the power cord

Do not place heavy objects on the power cord in such a way that the power cord iscrushed under the object. Do not damage, forcibly bend, twist, pull, or expose thepower cord to heat sources. In case of any damage to the power cord (exposure ofcore or breakage), contact us or our distributor for replacement.
Failure to follow this instruction may result in fire or electric shock.

Use an outlet which you can easily disconnect the power cord and do not place any
obstacles around the power outlet.

1. Connect the power cord to the AC adapter.

Actocardiograph MT-830 Operation Manual412. Connect the DC connector of the AC adapter to the power jack on the right sideof the main unit.

3. Insert the power plug into a commercial power outlet AC.

(2) Check the battery charge status
Charging automatically starts when the power cord is connected.
Make sure that the power indicator is flashing green.
The power indicator turns orange when the battery is fully charged.
Charging: Flashes green Fully charged: Lit orange

If the commercial power supply is cut off, the power automatically switches to the internal
battery. When the power source supply is restored, the power reverts back to the normal
commercial power supply and continues the operation before it was cut off.
When the commercial power source is cut off and there is no power left in the built-in battery,all settings are restored based on each setting stored in the memory when the power source isrestored.

42

Actocardiograph MT-830 Operation Manual

5 Preparations Before Use(3) Connect the transducer
Connect the plug to the sensor (SENSOR) connector (green) on the left side of the main unit.
Select whichever connector.
Align the plug’s teardrop shaped protrusion with the ▼ symbol on the main unit and fully insert
the plug until it clicks in to place.
• For single:
Y-shaped Doppler/External UC transducer supplied with the device• For twin/triplet fetuses: Y-shaped Doppler/External UC transducer supplied with the device,and optional Doppler transducer
Teardrop shaped
protrusion

Sensor connector

The added Doppler transducer can be used for a single fetus. Using two Doppler transducers(double Doppler) for a single fetus provides a wider range of monitoring since the two signals
detected are compared, and the one with better quality is automatically selected for display andprinting (single heart).
The monitor requires a change of setting mode (refer to P.134 “8-3-1-2 F.HR / FM”).

(4) Connect the remote marker switch
Connect the plug to the switch (SWITCH) connector (white) on the left side of the main unit.
Align the plug’s teardrop shaped protrusion with the ▼ symbol on the main unit and fully insert
the plug until it clicks.

Switch connector

Actocardiograph MT-830 Operation Manual43

(5) Connect Non-Invasive Blood Pressure Gage (NIBP)

MT-832-L/ P

1. Connect the NIBP air hose for adults to the NIBP connector on the left side of
the main unit.
Fully insert the plug until it clicks in to place.

NIBP connector

2. Connect the NIBP cuff to the air hose.
Insert the cuff’s connector to the joint of the air hose. Rotate the connector clockwise until
it stops.

(6) Connect the pulse oximeter (SpO2)

MT-832-L/ P

1. Connect the SpO2 patient cable to I/O connector 4 or 5 on the left side of themain unit.

I/O connector 4
I/O connector 5

44

Actocardiograph MT-830 Operation Manual

5 Preparations Before Use

2. Connect the SpO2 adult sensor to the SpO2 patient cable.

(7) Connect the M.ECG adapter cable

MT-832-L / P

1. Connect the M.ECG adapter cable to the M.ECG connector on the left side of
the main unit.
Push the plug in fully with the TOITU marking facing upward.

TOITU marking
M.ECG connector

2. Match the color when inserting color-coded clip electrode leads (R: red, F:
green, L: yellow) to the tip of the ECG adapter cable.

Actocardiograph MT-830 Operation Manual45

(8) Connect the accessories
Information monitored with the device can be monitored remotely, data can be printed, and thepatient information can be read.
• Central monitor• Recorder unit
• Bar code reader• Card reader
1. Connect the central monitor to I/O connector 1, and other accessories to I/Oconnector 2 or 3.

I/O connector 3
I/O connector 2
I/O connector 1(for central monitor)

Right-side

For the MT-831-S and MT-832-P, wrap the provided ferrite core with the LAN cable between the
fetal monitor (I/O 1) and the central monitor, as shown in the figure, and attach it to the main unit.

2. Push the power button to turn ON the device when the recorder is connected.
Power button

Make sure that the error indicator and the paper indicator are not flashing.

46

Actocardiograph MT-830 Operation Manual

5 Preparations Before Use

If the recorder’s “Linked with power on/off” setting in the Admin Settings is set to “Enable”, therecorder will be powered ON/OFF when the main unit is powered ON/OFF (refer to P.167 “8-5-9-1
Print1”) respectively.

Actocardiograph MT-830 Operation Manual47

5-4. Inspections before Use(1) Confirm startup
1. Press the(Power) button on top of the main unit.
The power indicator turns green.
2. Confirm that there are no defective areas on the LCD screen.
3. Check the battery level using the battery icon on the status bar.
Touch the Monitor ID to check the battery level numerically.
Check the battery level numerically

Check the power connection status andthe battery level with the icon

Monitor ID(2) Check the date/time
Make sure that the date/time is correct on the right of the status bar by comparing it with thecorrect date/time.
If there are no errors, proceed to Step (4). If there are any errors, proceed to Step (3) and be
sure to correct the time.

48

Actocardiograph MT-830 Operation Manual

5 Preparations Before Use(3) Correct the time (or date)

You can also make settings to automatically show the time setting screen at startup from theAdmin Settings (refer to P.150 "8-5-3-1 Power-on/off").

1. Touch(Menu) on the Bottom button, then touch [Device Settings].

The Clock setting screen is displayed.

2. If the time synchronization is set to <Auto>, touch <Manual>.

Actocardiograph MT-830 Operation Manual49

3. Touch the Date display area.

The Change date pad appears.

4. Touch the date/time you want to change and enter the correct date/time.
Touch [Erase all] or [Erase] to erase the date/time.

You cannot modify the seconds manually. In order to modify the seconds, enter the time a minuteor two minutes ahead and touch [OK] when it reaches 00 seconds of the correct minute.

5. Touch [OK] to confirm the date/time.

Touch [Cancel] to close the Change date pad without making date and time settings.

50

Actocardiograph MT-830 Operation Manual

5 Preparations Before Use(4) Adjust the Doppler sound volume
When more than one Y-shaped Doppler/External UC transducer and Doppler transducer areconnected, the Doppler sound of one of those can be heard.
You can hear the Doppler sound of the Doppler for which
is displayed on the monitoringarea.

1. Touch(Side Window) on the Bottom button, and then touch [Volume].
When the [Volume] button is listed on the Bottom button, touch the button to show thevolume.

The volume meter is displayed and the current volume is shown as a number (0-15).

2. Touching the monitoring area of each Doppler switches the Doppler sound thatcan be heard.
3. Adjust the volume.
Touch the up/down button on the volume meter or move the slider directly to adjust thevolume.
Touchto set the volume to zero. No Doppler sound can be heard. Touch thenumber again to return to the volume before it was muted.
Current volume (muted
when touched)Up button
SliderDown button

Actocardiograph MT-830 Operation Manual51

4. Touch(Close side window) on the Bottom button to hide the volume meter.

• A Doppler sound and Maternal heart rate/Maternal pulse rate synchronous sound can be
adjusted or muted using the volume meter. For the alarm volume, refer to P.122 "7-3-1
Common".

• For the key sound settings, refer to P.146 "8-4-3 Other".
(5) Confirm the Doppler sound1. Hold the Doppler transducer in your hand so that the transmitting and receiving
surface faces out.
2. Move the palm of the other hand towards or away from the transmitting andreceiving surface.

3. Confirm that the Doppler sound can be heard when the hand is close to thetransducer. If it cannot be heard, increase the volume and try again.
4. After confirmation, gently place the transducer avoiding putting pressure on
the transmitting and receiving surface.
5. If you cannot confirm the sound, connect a different Doppler transducer and try
again.
Important
If there is no Doppler transducer with which you can confirm the Doppler sound, do not use thisdevice.

52

Actocardiograph MT-830 Operation Manual

5 Preparations Before Use(6) Confirm the contraction level
1. Lightly press the center of the pressure sensitive part of the External UC
transducer.
Pressuresensitive part2. Confirm that the UC level increases in proportion to the extent of the pressure
applied.

UC level

3. Once complete, gently place the transducer while avoiding putting pressure on
the pressure sensitive part.
4. If you cannot confirm the UC level change, connect a different the External UC
transducer and try again.
Important
If there is no the External UC transducer with which you can confirm the UC level, do not use thisdevice.

(7) Check the M.ECG adapter cable
1. Confirm that a device alarm "M.ECG:Check Electrode" is issued when theelectrode of the M.ECG adapter cable is not applied to the patient.
(8) Check the recorder
1. Make sure that the error indicator of the recorder is not flashing.
Error indicator

Actocardiograph MT-830 Operation Manual53

2. Make sure that the paper indicator is not flashing.
Paper indicator• For actions you should take when the error indicator is flashing, refer to "Recorder Unit MP130 Operation Manual".

• When the paper indicator is flashing, check if the recording paper is loaded correctly or thecover is not open.

54

Actocardiograph MT-830 Operation Manual

6 Using This Device

6.

Using This Device

6-1. Registering Patient Information
Patient information can be registered/displayed/recorded if the device is associated with our central
monitor. Patient ID can be entered on a screen.

6-1-1. Entering on a screen
1. Touch [Prepare] on the Bottom button or Menu screen.

The Prepare screen is displayed.

2. Touch the [Patient ID] field.

The Patient ID entry pad appears.

Actocardiograph MT-830 Operation Manual55

3. Enter the patient ID registered with our central monitor and touch [OK].

The patient information is read and the Prepare screen is displayed.

4. Select a Preset
When a Preset is registered in the Admin Settings (refer to P.154 "8-5-3-5 Preset"),select Preset to change the following settings collectively:- Alarm Settings (refer to P.121 "7-3 Alarm Settings")- NIBP measurement settings (Interval, End Sound) (refer to P.138 "8-3-1-5 NIBP")- Sensor to use (refer to P.140 "8-3-2-1 Common")Make sure that the selected Preset is suitable for the patient before using the Preset.
The selected Preset will be deselected after measurement is complete, and any settings
that were changed when the Preset was selected are restored to the original settings.
The Preset values registered in the Admin Settings do not change even if associatedsettings are changed on the Settings screen while the Preset is selected. The changes
are temporary until the measurement is complete.

56

Actocardiograph MT-830 Operation Manual

6 Using This Device

5. Confirm that the data shown is consistent with the patient information you want
to register, and then touch [Measure] or [Save only].
Touch [Save only] when you do not want to start measurement immediately.

When [Measure] is touched, a confirmation screen is displayed. For subsequent
operations, refer to P.75 "6-7-1 Select Measure Mode to start monitoring".
When [Save only] is touched, the screen returns to the monitoring screen.

• You can hide the patient information on the monitoring screen from the Admin Settings (refer
to P.155 "8-5-3-6 Other").

• If our central monitor is not used, touch [Edit] on the Prepare screen to edit the patient
information.

• Select the Preset registered in "Select Preset" on the Prepare screen to change the settingscollectively based on the patient (refer to P.154 "8-5-3-5 Preset").

Actocardiograph MT-830 Operation Manual57

6-2. Monitor the Doppler Fetal Heart Rate

Carefully monitor for any surges in heart rate images due to any artifacts. The heart
rate can be converted to incorrect signals because of the change of uterine
contractions. In some cases, the displayed and recorded heart rate may be twice asmuch as the actual heart rate even when it is decreasing, or half as much even when
it is increasing.
This may cause a misdiagnosis.
Move the Doppler transducer to a position (optimal position) that provides clear,rhythmic sounds (sounds of the heart wall and valves) in response to the fetal
movement.
Failure to do so may cause a misdiagnosis.

When monitoring the fetal heart rate of twins or three fetuses, check each fetus using
the heart rate sound.
The identical fetus could be detected depending on the position of the Dopplertransducer.
Confirm that the fetal heart beat is different from the maternal pulse rate.
When it is suspected the maternal pulse rate is being recorded, take the maternal
pulse and compare with the displayed heart rate.

(1) Apply ultrasound gel
Apply the ultrasound gel to the surface of the maternal abdomen and the transmitting andreceiving side of the Doppler transducer.
Important
The amount of ultrasound gel should be applied evenly so that it creates a thin layer. It should not
be too much or too little.
In addition, ultrasound gel left for a prolonged time may harden. Do not use hardened gel as it
prevents the correct measurement from being attained.

Opening/closing the gel cap
Push the cap upward

58

Actocardiograph MT-830 Operation Manual

6 Using This Device(2) Decide on the position
1. Place the transmitting and receiving side of the Doppler transducer so that it isclosely applied to the maternal abdominal wall.
2. Slowly move the Doppler transducer to detect a position that provides clear,rhythmic sounds (sounds of the heart wall and valves).

♡

3. Check the icon for heartbeat synchronizationon the screen and hold thetransducer in a position where the green light is continuously on.

Heartbeatsynchronization
The color of the icon is defined as follows depending on the status of the heart rate
signals.

♡ Color

Signal quality♥ Green♥ Yellow♥ Red

The signal isstable.

There is some noise but thesignal can be detected.

The signal isunstable.

4. In the case of multiple fetuses, find the position for each fetus.
Important• In the case of multiple fetuses, position the transducer so that each fetus is measured by the
Doppler sound.
One Doppler transducer may monitor two fetuses, or two transducers may monitor one fetus.

One transducer is monitoring
two fetuses

Two transducers are monitoring
one fetus

Actocardiograph MT-830 Operation Manual59• The Doppler sound switches between the selected Doppler each time you touch themonitoring area, andis displayed on the monitoring area for the active one. Regularly

check the fetus with the Doppler sound and adjust the position of the Doppler transducer as
required.

5. When using Single Heart Mode, find a position where two transducers canmonitor one fetus.

If Single Heart Mode is set to "On" on the Measure Settings screen, [Doppler SH] is displayed in
the FHR mode field (refer to P.134 "8-3-1-2 F.HR / FM").

(3) Affix the transducer
1. Affix the appropriate buttonhole on one end of the transducer belt applied tothe back to the hook of the Doppler transducer while being careful not to movethe transducer.
Hook

Buttonhole

2. Affix the other buttonhole on the other end of the transducer belt to the hook totighten the transducer belt.
Drop the end of the transducer belt down to the side.
3. Thoroughly wipe away any excessive ultrasound gel on the abdominal wall.
(4) Start monitoring
Refer to P.75 "6-7 Start monitoring" to start monitoring.

60

Actocardiograph MT-830 Operation Manual

6 Using This Device

6-3. Monitoring the External UC

Do not apply ultrasound gel to the External UC transducer.
Do not fasten the transducer belt too tightly.
Failure to follow this instruction may result in excessive pressure on the abdominal
wall or cause a monitoring error.
Confirm there is no redness on the skin when the External UC monitoring transducer
is used for a long time. If there is redness, slightly displace the contraction transducer
or stop using the monitoring device.
Failure to follow this instruction may result in contact dermatitis in rare cases.

(1) Decide on the position
Place the External UC transducer slightly above the navel, the center of the abdominal wallthat provides the maximum abdominal circumference.

Positioning of the External UC transducer

Around the bottom on the backside of the fetus for a cephalicpresentation

Around the head of the fetus
for a breech presentation

Important• If the transducer is placed below the navel, it cannot monitor correctly due to the mother’s
breathing.

• The device has a filter to eliminate the effect of breathing.
To record a waveform which does not use the filter, change the settings (refer to P.136 "8-3-13 UC").

Actocardiograph MT-830 Operation Manual61

(2) Affix the transducer
1.

Affix the appropriate buttonhole on one end of the transducer belt applied tothe back hook of the External UC transducer while being careful not to movethe transducer.
Fasten the transducer belt so that the UC level is incremented by approximately 10.
Hook

Approx. +10

Buttonhole

2.

Drop the end of the transducer belt down to the side.

(3) Set UC ZeroSet
After fixing the transducer, touch [ZeroSet] on the Bottom button or Menu screen.
The starting points for the display and record are set to "12" on the scale.

Zero set and sample screen

Important• [ZeroSet] can be set to "0" with a long press, however, a negative value may be measured forthe reference value set to zero in the External UC monitoring, therefore, use a short press to
set to "12".

• Without performing a zero set, the UC cycle may not be calculated correctly.
(4) Start monitoring
Refer to P.75 "6-7 Start monitoring" to start monitoring.

62

Actocardiograph MT-830 Operation Manual

6 Using This Device

6-4. Measuring maternal Non-Invasive Blood Pressure (NIBP)
MT-832-L / P

Take extreme care when measuring the non-invasive blood pressure of a patient who
is likely to bleed or in hypercoagulable status.
Punctate bleeding or blood clot may cause a circulatory disorder after the arm istightened with a cuff.
Refrain from a continuous measurement for a prolonged period.
Failure to follow this instruction may cause blood stasis on the measured area.
Be sure to use the device while checking the status of the patient when measuring at
an interval of 2.5 minutes or less is required.
Failure to follow this instruction may cause blood stasis on the measured area.
Periodically check the blood circulation when a periodical measurement is made for a
prolonged time of period.
Non-invasive BP may not be measured correctly when:• an electrical scalpel is used,• a body movement is detected,• a pulse wave is weak,• an irregular heartbeat is frequent,• an external vibration is detected,• an acute BP fluctuation is detected,• a measurement is made during CPR,
• PR is slow,• BP is low,
• pulse pressure is low,
• the cuff is wrapped incorrectly (too tight or too loose)• a cuff not suitable for the thickness of the patient's arm is used,• the cuff is wrapped on thick clothing, or• a worn-out cuff is used.
Stop measurement immediately if the patient's physical condition gets worse due toblood pressure measurement.
Consult the doctor for advice before using the device as the patient who has a severe
circulatory deficit on his or her arm may cause a poor health condition.

Make sure that the cuff and air hose fitted to the patient are securely connected to thedevice.
Failure to follow this instruction may cause a misdiagnosis due to inaccurate displayof monitoring results.
Do not connect the air hose to something other than the cuff (e.g. transfusion line).

Actocardiograph MT-830 Operation Manual63

Do not connect a neonatal cuff to the device.
The device is intended for an adult's non-invasive blood pressure (NIBP) monitoring.
Normally, the cuff should be worn on a bare arm to monitor the arterial pulsation
accurately.
Do not wrap the cuff too tightly when wearing the cuff.
Failure to follow this instruction may inhibit the bloodstream, causing blood stasis. In
addition, if the cuff is wrapped loosely, the BP value could be relatively high.
Do not monitor a non-invasive blood pressure (NIBP) on the same side as SpO2.
Failure to follow this instruction may inhibit the bloodstream and suspend the SpO2
monitoring.
Do not wear the cuff on the upper arm or thigh on which a venous path is secured.
Failure to follow this instruction may cause a back-flow of blood and stop a chemical
injection.
Do not try to smash or bend the air hose during monitoring.
Failure to follow this instruction may apply pressure on the cuff continuously, resulting
in a bloodstream failure and causing serious injury to the patient.
Refrain from NIBP monitoring for patients for whom a balloon pumping (IABP) isapplied.
Failure to follow this instruction may cause an incorrect measurement as the pulse
wave emitted by IABP and the patient’s pulse wave coexist.
Refrain from measuring BP in the following states as it may cause an accident:• Wrapping the cuff over external injuries
Failure to follow this instruction can cause additional injury as well as cause
infection.

• Wrapping the cuff around limbs where blood vessel cannulation, treatment, or shunt
Failure to follow this instruction may cause harm due to inhibited bloodstream.
• A state where blood clots may occur because the patient is confined to bed for a
prolonged time.
• Warpping the cuff around the arm on the mastectomy side.
Failure to follow this instruction may cause interference with the mastectomy due tocuff pressure.
• Starting monitoring without wrapping the cuff
• Wrapping the cuff around areas other than the limbs• The air hose is bent
Air remains in the cuff, causing a periphery function disorder due to homeostasis in
the arm.
• Using a contaminated cuff
Failure to follow this instruction may cause infection.

64

Actocardiograph MT-830 Operation Manual

6 Using This Device
The measurement fails and re-measurement may take place when:• a body movement is detected,• a pulse wave is weak,• an irregular heartbeat is frequent,• an external vibration is detected,• PR is slow,• BP is low,
• pulse pressure is low,
• periphery low perfusion is detected,• the body temp is low,
• the cuff is wrapped incorrectly (too tight or too loose)• a cuff other than that for compression measurement is used,• a cuff not suitable for the thickness of the patient's arm is used, or• the cuff is wrapped on thick clothing,
As the factory default, pressurization measurement is set but can also be changed todecompression measurement.
The cuff may be degraded if measurement is not disabled during continuouspressurization and decompression measurement is set. Replace with a new cuff.
Using the degraded cuff, a noise from the cuff is mixed during pressurization, and thepressurization measurement is not possible.
BP may not be measured correctly when measured under the conditions or withprocedures not listed in “Recommendations for BP measurement”. If you areconcerned about the accuracy of monitoring results, check if the recommended
conditions or procedures are being followed.
If a measurement error occur or you are concerned about the accuracy of monitoring
results even when recommended conditions or procedures are being followed, checkusing other methods (auscultation, palpation, etc.).
Do not use a measured PR to judge infrequent pulse or irregular heartbeat.

The device has A&D's integrated NIBP module TM-2917.
Recognize a pulse wave as being pressurized and release the pressure to complete themeasurement once the max BP (SYS) is measured. To change to decompression mode, change“Wired NIBP Measure Mode” on P.138 “8-3-1-5 NIBP“.

■ Recommendations for BP measurement
Patients under BP monitoring are recommended to be in the following status:• Resting quietly in bed prior to the initial measurement
It is recommended to rest for more than 5 minutes.
• Fold the sleeve or wear a thin material of clothing
Make sure that the folded sleeve does not tighten the area to be measured.
• Sit back and relax comfortably• Do not cross legs, but instead place them on the floor to make your back and arms stable• Keep the center of the wrapped cuff as high as the right atrium• Keep quiet in bed during monitoring and do not make conversation.
Actocardiograph MT-830 Operation Manual65

Follow the procedure below to measure correctly. During monitoring, the patient should maintainthe following recommended status as much as possible.

• Make sure that the patient is relaxed.
• Use a cuff compatible with the boundary length of the arm.
• Adjust the height of the chair and posture to make sure the center of the wrapped cuff is as highas the right atrium.
• Make sure that the patient remains relaxed even after the measurement has started.
(1) Make settings
Make NIBP measurement settings. They include measurement settings and Alarm Settings.
• For the measurement settings, refer to P.138 “8-3-1-5 NIBP“.

• For Alarm Settings, refer to P.116 “7-1-4 Non-Invasive Blood Pressure (NIBP) Alarm“.
(2) Wear a cuff
1. With the palm of the patient’s hand facing up, align the cuff 1 to 2 cm above theinner elbow joint of the upper arm.
The cuff’s range where the INDEX marking overlaps the RANGE marking is proper.
2. Apply the cuff so that the artery position marking ● overlaps the artery.
Artery position marking

3. Wrap the cuff around the arm.
Wrap the cuff tightly without any space so that the cuff is not misaligned or does not
move. However, try not to tighten excessively and allow for about one or two-fingers ofspace.

66

Actocardiograph MT-830 Operation Manual

6 Using This Device(3) Start monitoring
Refer to P.75 "6-7 Start monitoring" to start monitoring.
Important
You cannot make an NIBP measurement unless the BP is being monitored.

(4) Measure NIBP
Place the cuff as high as the heart. Relax in a correct posture and measure the BP. The button
for a single measurement is different from that of continuous measurement.
● For a single measurement

1. Touch [NIBP] on the Bottom button or Menu screen.

NIBP measurement starts and the cuff is pressurized with the pump.
Once the measurement is complete, Systolic BP, Diastolic BP, Mean BP, and Pulse rate
are displayed on the NIBP monitoring value area. Once the BP value is determined, air inthe cuff will be released rapidly.

• To abort during monitoring, touch [NIBP] on the Bottom button or Menu screen again .
• When the measurement failed, an automatic re-measurement (up to 3 times) may take place
depending on the cause.

● For continuous measurement

1. Touch [NIBP Auto] on the Bottom button or Menu screen.

The Start continuous NIBP screen is displayed.

Actocardiograph MT-830 Operation Manual67

2. Change the Interval and End Sound as necessary and touch [Start].

Once NIBP Auto measurement starts, the cuff is pressurized with the pump.
Once the measurement is complete, Systolic BP, Diastolic BP, Mean BP, and Pulse rate
are displayed on the NIBP monitoring value area. Once the BP value is determined, air inthe cuff will be released rapidly.
Measurement starts again after a specified time has passed.

Touch [NIBP Auto] on the Bottom button or Menu screen again when you want to exit continuous
measurement.

68

Actocardiograph MT-830 Operation Manual

6 Using This Device

6-5. Measuring maternal Arterial blood oxygen saturation(SpO2)
MT-832-L / P

A SpO2 disposable sensor is for single-use only. Do not reuse it.
Failure to follow this instruction may cause infection due to contamination.
Do not use an expired SpO2 disposable sensor.
Failure to follow this instruction may cause infection due to contamination.
Be sure to refer to the Operation Manual to apply the SpO2 sensor correctly.
Incorrect application may cause damage to the skin.
Do not use the SpO2 sensor on the same area for a long time, and reposition thesensor at least every 8 hours. For patients whose bloodstream on the applied area of
the SpO2 sensor is poor, reposition the sensor at least every 2 hours.
Failure to follow this instruction may cause damage to the skin, pressure necrosis oftissue, blood stasis, rash, or burn.
Do not connect the SpO2 sensor to anything other than the SpO2 patient cable.
Do not use the pulse oximeter to issue an alarm when a breathing abnormality isdetected, such as arrested respiration during sleep. The pulse oximeter is a device tomeasure SpO2 and PR.
Do not use the pulse oximeter to detect an irregular heartbeat alternatively using M.
ECG.
The irregular heartbeat may not be detected as the PR measurement using the pulse
oximeter is done with an optical detection of periphery bloodstream.
Use the pulse oximeter as a device for early warning of oxygen saturation. Use a
blood gas analyzer to check when SpO2 is likely to be exposed to hypoxic conditions.
Do not connect the SpO2 sensor and the SpO2 patient cable in wet locations.
Do not immerse in liquid or wet the SpO2 sensor and the SpO2 patient cable.
The SpO2 value is experientially adjusted by a healthy adult volunteer’s check.
The SpO2 disposable sensor for adults and reusable sensor for adults are intended
for measuring adults of 30kg or more.
Do not apply the SpO2 sensor to a finger of the arm with the cuff of NIBP gauge or thecatheter for invasive blood pressure monitoring applied.
Failure to follow this instruction may cause an inaccurate monitoring value.
Remove the SpO2 sensor completely before the patient takes a bath.

Actocardiograph MT-830 Operation Manual69

Note that a correct measurement of SpO2 may be prevented when:• Excessive amounts of abnormal hemoglobin such as carboxyhemoglobin (COHb)
and methemoglobin (MetHb),• the bilirubin level is high,• the CO2 level in the blood is extraordinary low,
• the angiography agent is being administered,• chemicals with vasodilating effects are being administered,• a pigment is injected to blood,• CPR (cardiopulmonary resuscitation technique) treatment is in progress,• a cardiac arrest or shock is being experienced,• hypotonia, significant luminal narrowing, severe anemia, or hypothermia is being
experienced,• measurement is made on limbs using an artery catheter and intra-aortic balloon• measurement is made on an area where venous pulsation is detected,• PR is slow,• low perfusion is identified,• blood circulation on the measured area is poor (hands or fingers are cold),• a body movement is detected,• a fingernail to monitor is manicured,• hand cream is applied or have dirty hand, or• measurement is made under strong light, including sunlight, surgical operation
lamp, etc.

A patient undergoing photodynamic therapy may be sensitive to light sources. The
pulse oximeter can be used for a short time under clinical supervision as long as
disturbances by the photodynamic therapy are minimized.
When a faint pulse message is frequently displayed, find a more suitable monitoring
position.
Additional information unique to the Masimo sensor, including artery and low pulsation
parameters/monitoring performance information is described in the sensor’s User’s
Manual (DFU).
The SpO2 sensor and the SpO2 patient cable should not be closer to other nonspecified devices or stacked in use. If the device must be used in such a way, confirm
the correct operation in the arrangement to be used.
The device has Masimo Corporation's pulse oximeter integrated. The device can monitor a reliable
SpO2 value and PR under such clinical conditions as patient’s body movement or low pulsation. In
addition, as the cable and the sensor have X-Cal™ technology, incorrect reading or unexpectedpatient’s monitoring loss can be minimized.

70

Actocardiograph MT-830 Operation Manual

6 Using This Device(1) Make settings
Make SpO2 measurement settings. They include measurement settings and Alarm Settings.
• For the measurement settings, refer to P.139 “8-3-1-6 SpO2“.

• For Alarm Settings, refer to P.126 “7-3-5 SpO2“.
(2) Apply the SpO2 sensor
Apply the SpO2 sensor to a patient’s finger.
For the SpO2 disposable sensor, refer to the Operation Manual provided with the device.
To use the SpO2 reusable sensor (sold separately), apply the sensor to a finger as shown
below. An alarm is triggered when the finger is removed from the SpO2 sensor after themeasurement has started. In that case, remove the sensor to stop the alarm.

(3) Start monitoring
For stable monitoring, observe the signal strength of PULSEWAVE and the shape of the
waveform to make sure that the waveform is good.
Refer to P.75 "6-7 Start monitoring" to start monitoring.
● Original waveform display of PULSEWAVE

1. Touchon the status bar and select [15min (Original waveform)].
The original waveform of Maternal ECG is displayed.
2. Touch [PULSEWAVE].

The original waveform of PULSEWAVE is displayed.

• Touch(Maximize) to maximize the original waveform.
• To print the original waveform, touch(Print) when a recorder (sold separately) isconnected.

Actocardiograph MT-830 Operation Manual71

6-6. Monitoring the MHR with M.ECG Diagram Method
MT-832-L / P

The M.ECG electrode is for single-use only. Do not reuse it.
Failure to follow this instruction may cause infection due to contamination.
Do not use an expired M.ECG electrode.
Failure to follow this instruction may cause infection due to contamination.
Do not connect the clip electrode lead to anything other than the M.ECG adapter
cable.

Use an M.ECG electrode with a generic name that corresponds to "Single-use M.ECG
electrode".
Example: Product name "RED DOT Monitoring electrode" Registered No.
"13B1X10109000192"
Using parts other than those indicated may cause irritated skin or allergy due toprolonged exposure to the part.
Do not use the M.ECG electrode on the same area for a prolonged time. Failure tofollow this instruction may cause such abnormalities as a rash on the area.
Do not use the M.ECG electrode on cut or irritated skin.
Failure to follow this instruction may worsen the condition.

72

Actocardiograph MT-830 Operation Manual

6 Using This Device(1) Make settings
Make the maternal heart rate measurement settings. They include measurement settings andAlarm Settings.
• For the measurement settings, refer to P.137 “8-3-1-4 M.ECG“.

• For Alarm Settings, refer to P.124 “7-3-3 M.HR / M.PR“.
(2) Decide on the position
1. Clean the area on which the M.ECG electrode is applied with alcohol or mild
soap water.
2. Affix the M.ECG electrode on the chest as shown in the figure.
3. Connect the clip of the clip electrode lead (R: Red) (F: Green) (L: Yellow) to the
M.ECG electrode respectively according to the letters shown on the M.ECG
adapter cable.
Application position of
the M.ECG electrode

4. When the MHR is displayed on the monitoring area, check if the MHR is shown
correctly.

Actocardiograph MT-830 Operation Manual73

(3) Start monitoring
Refer to P.75 "6-7 Start monitoring" to start monitoring.

● Original waveform display of the Maternal ECG

1. Touchon the status bar and select [15min (Original waveform)].
The original waveform of the Maternal ECG is displayed.

• Touch(Maximize) to maximize the original waveform.
• To print the original waveform, touch(Print) when a recorder (sold separately) isconnected.

74

Actocardiograph MT-830 Operation Manual

6 Using This Device

6-7. Start monitoringOnce each sensor has been applied corretly, select Measure Mode to start monitoring.
If you set to start monitoring once the device has been turned ON in the Admin Settings, monitoring
starts without having to perform Start operations (refer to P.150 “8-5-3-1 Power-on/off“).
The device has three Measure Modes; NST, Delivery, and Maternal and the differences between themodes is shown below:
The Measure Mode currently selected is shown on the status bar.
Function

NST Mode

Delivery Mode

Maternal Monitoring
Mode

Fetal monitoring

Yes

Yes

No

Fetal alarm

On

On

Off

Waveform

Waveform

Maternal Vital list *Display* Waveform can be displayed even in Maternal monitoring Mode.

Important
The monitoring data will be sent to the central monitor and saved in the internal memory only during theperiod from the start to the end of monitoring.
To start monitoring of a new patient, be sure to check if the Alarm Settings are appropriate.
In addition, adjust the Alarm Settings to appropriate values based on the patient’s status during
monitoring.

• To start the NIBP measurement, refer to P.63 “6-4 Measuring maternal Non-Invasive Blood Pressure(NIBP)“.

• If you set to start monitoring automatically once HR has been detected in the Admin Settings,
monitoring starts automatically once a stable fetal heart rate has been measured (refer to P.150 “8-53-1 Power-on/off“).

6-7-1. Select Measure Mode to start monitoring
Check Measure Mode and measurement conditions to start monitoring. Printing and monitoring areavailable at the same time if NIBP Auto measurement is enabled, or a recorder (sold separately) isconnected.
Once the Measurement time has been set, the measurement will end automatically after the
specified time has elapsed.
As well as the method shown below, you can also touch [Measure] on the Prepare screen to start
monitoring.

1. Touch [Measure] on the Bottom button or Menu screen.

The Start confirmation screen is displayed and the current measurement conditions areshown.
The displayed screen differs depending on the Measure Mode.
Actocardiograph MT-830 Operation Manual75

2. Change the Measure Mode and measurement conditions as necessary andcheck the sensor status.
Delivery Mode

• Switch the Measure Mode using the above tab ([NST]/[Delivery]/[Maternal]).
• It is possible to start the monitoring without showing the confirmation screen by configuring theAdmin Settings.

• You can change the initial value for each Measure Mode from the Admin Settings (refer toP.151 "8-5-3-2 Measure Mode").

Settings Item
MeasureMode76

Function
Switches the Measure Mode
(NST/Delivery/Maternal).

Default Value
Delivery* You can change the initial value for Measure Modefrom the Admin Settings (refer to P.150 "8-5-3-1
Power-on/off").

Patient ID

Displays the patient ID (refer to P.55 "6-1
Registering Patient Information").

－

Name

Displays the name of the patient.

－

Waveform
size

Displays and switches the waveform size to display(10min/15min/40min/FULL SIZE/Number) (Refer toP.28 “4-2-3 Waveform Area").

• NST: 10min• DEL: 15min• MAT: 15min

Measurement
time

Displays and changes the measurement time (referto “■Specify the measurement time” below).

• NST: 20min• DEL: Unspecified• MAT: Unspecified

NIBP

Displays and changes the NIBP measurement mode
(Manual/Auto) and Interval and End Sound.

• NST: Manual• DEL: Manual

Actocardiograph MT-830 Operation Manual

6 Using This Device
Settings Item

Print

Function

Default Value* Not displayed when NIBP is set to “Off” in the Admin
Settings (refer to P.164 “8-5-7 Sensor“).

• MAT: Auto

Displays and changes whether printing is required
when a recorder (sold separately) is connected.
If Print is set to "On", the CTG data from the start ofmonitoring will be printed at high speed even if arecorder is connected later. However, the limit is 2
hours; if it exceeds 2 hours, only the CTG data forthe last 2 hours will be printed at high speed.

• NST: Yes• DEL: Yes• MAT: No* Not displayed when Print is set to “Off” in the Admin
Settings (refer to P.167 “8-5-9-1 Print1“).

Sensor Status

Displays the connected sensors along with theirconnection status, battery level, and communication
status. Touchto select a sensor independently.

* Selecting a sensor is also available on the Menu
screen (refer to P.140 "8-3-2 Select Sensor").

Start

Starts monitoring.

CancelCancels monitoring.

3. Touch [Measure].
Monitoring starts and the Monitoring screen is displayed.
The Measuring icon is displayed on the status bar.
If Print is set to “On” in the condition settings, printing starts when the measurement
started.

• Pressing and holding the waveform area allows you to view the historical data being measured(refer to P.97 “6-16 Display the Stored Data“).

• When a recorder (sold separately) is connected, even if Print is set to “No” on the Start screen,
touching [Print] on the Menu screen allows you to start printing when you want.

Actocardiograph MT-830 Operation Manual77

■ Specify the measurement time
Once the Measurement time has been specified, you can end the measurement automatically oremit an End Sound after the specified time has elapsed.

1. Touch the “Measurement time” area on the Start screen.
The Change measurement time screen is displayed.
2. Touch [Specified] to specify after how many minutes the measurement should
end.
Touch
or slideto specify a value.

3. Set the operation after the specified time has elapsed.
If “Measurement at elapsed time” is set to “Stop”, the measurement ends automaticallyafter the specified time has elapsed. If it is set to “Continue”, you can emit an End Sound
without terminating the measurement.
4. Touch [OK].
The measurement time is changed and displayed on the Start screen.

78

Actocardiograph MT-830 Operation Manual

6 Using This Device

6-7-2. Move the position of the Doppler transducer

Move the Doppler transducer to the position (optimal position) that provides clear,rhythmic sounds (sounds of heart wall and valves) in response to the fetal movement.
Failure to do so may cause a misdiagnosis.
Adjust the Doppler transducer in response to the fetal movement.
Especially, when measuring multiple fetuses, periodically check the Home screen and printed
recording paper, and if
is displayed (printed), be sure to reposition the Doppler transducer.

Actocardiograph MT-830 Operation Manual796-8. Registering an Internal Examination
You can register the level of internal examination for each item.

1. Touch [Internal Exam.] on the Bottom button or Menu screen.

The Internal Exam. screen is displayed. The registration history for this measurement isdisplayed on the left pane.

2. Select a single level for each item.
Select a single level for “Dilation”, “Effacement”, and “Station”.
For “Body temperature” and “Bleeding volume”, touch [Input], enter a number with the
keypad, and then touch [OK].
You do not have to enter all items to complete the registration.

• To change the date and time, touch the date/time area at the top of the screen.
• The internal examination registration history for this measurement is listed in the left pane. To
print the list, touch [Print] when a recorder (sold separately) is connected (refer to “■Print theinternal examination list”).
However, printing is not available during CTG printing. End CTG printing before printing.

• The registration history list can also be displayed as a side window along with the waveform(refer to P.33 “4-2-5 Side Window“).

• Touching each history in the registration history list allows you to change the date of theinternal examination or delete the history.

80

Actocardiograph MT-830 Operation Manual

6 Using This Device

3. Touch [Internal Exam.].
The internal examination will be registered and displayed on the Home screen.

5cm/80%/+1
36.7°C/20g
Displayed in the form of “A
cm/B ％/C/D °C/E g”.
A: Dilation
B: Effacement C: Station
D: Body temp. E: Bleeding

Important
Internal examinations are not sent to the Central monitor (OBIS).

Touch [Close] to cancel the Internal Exam.

■ Print the internal examination list
Touch [Print] to print a list of input times and details of each internal examination when a recorder(sold separately) is connected. Up to 500 entries of the internal examination will be printed.

(1)
(2)

(3)

No.

Settings Item

Function(1)

Printout date/time

Prints out the date and time on which the list was printed.

(2)

Patient information

Prints out the patient ID and the patient name.

(3)

Internal Examination

Prints out the date of occurrence and details of the internal
examination.

Actocardiograph MT-830 Operation Manual816-9. Recording an Event
Record the time at which an event such as FUI.D, RUP.M, or F.DEL occurred and activate the Apgar
Timer when the F.DEL event occurred.

You can show or hide an event for each category from the Admin Settings (refer to P.156 "8-5-4 ClinicalSet").

1. Touch [Event] on the Bottom button or Menu screen.

The Event screen is displayed. The registration history for this measurement is displayedin the left pane.

2. Select an event in the order of “Category”, “Event”, and “Comment”.
Touch Free comment area under “Comment” to show the keypad. Enter comments andtouch [�] (Enter) key.

• To change the date and time, touch the date/time area at the top of the screen.
• The event registration history for this measurement is listed in the left pane. To print the list,
touch [Print] when a recorder (sold separately) is connected (refer to “■Print the event list”).
However, printing is not available during CTG printing. End CTG printing before printing.

• The registration history list can also be displayed as a side window along with the waveform(refer to P.33 “4-2-5 Side Window“).

• Touching each history in the registration history list allows you to change the date and time ordelete the history.

82

Actocardiograph MT-830 Operation Manual

6 Using This Device

3. Touch [Event].
The event will be registered and displayed on the Home screen.

Full cervix
Dilation
16：06

Important
Events are not sent to the Central monitor (OBIS).

• Touch [Close] to cancel the Event.
• If “F.DEL” is selected, when the Apgar Timer is set to “On”, a timer tone rings after the timepreset on the timer is reached (refer to P.84 “6-10 Inputting the Apgar Score“).

• You can allocate “F.DEL1”, “F.DEL2”, “F.DEL3”, or “Placenta DEL.” on the Bottom button to
input an event from the Bottom button from the Admin Settings (refer to P.159 “8-5-5-2
Bottom Button“).

■ Print the event list
Touch [Print] to print a list of input time and details of each event when a recorder (soldseparately) is connected. Up to 500 entries will be printed.
(1)
(2)

(3)

No.

Settings Item

Function(1)

Printout date/time

Prints out the date and time on which the list was printed.

(2)

Patient information

Prints out the patient ID and the patient’s name.

(3)

Event

Prints out the date of occurrence of the event and the event
name.

Actocardiograph MT-830 Operation Manual836-10. Inputting the Apgar Score
When the Apgar Timer is set to “On”, select [F.DEL] on the Event screen to activate the Apgar Timerand record the fetal delivery time. Once the timer tone rings at the preset time, enter the Apgar
Score.
Important
Data in the Apgar Score will not be sent to the Central monitor (OBIS).

You can set On/Off of the Apgar Timer as well as the timer time and timer tone from the Admin Settings(refer to P.157 “8-5-4-2 Apgar Timer“).

1. Touch [Apgar Score] on the Bottom button or Menu screen.

The Input Apgar Score screen is displayed.

2. Touch and check the relevant items for each elapsed time.

(1)

(4)

(2)

(3)

84

Actocardiograph MT-830 Operation Manual

6 Using This Device

No.
(1)

Settings
Item
Delivery
information

Function
Displays the fetal delivery time and elapsed time for each fetus(1st./2nd./3rd.) (“-” is displayed before delivery). The timer tonerings after a preset time has passed. The [F.DEL] button isdisplayed before delivery and the [Reset Time] button is displayed
after delivery.
• [FetalX delivery]: Records the fetal delivery time and starts thetimer.

• [Reset Time]: Resets the delivery time.
(2)

Apgar Score

Displays the Apgar Score registered for each timer. Displays“Waiting for input” and “x:xx remaining (time)” before the timepreset on the timer is reached.
To stop the Apgar Timer from counting, touch [Stop timer].

(3)

Print

Prints a list of delivery information and the Apgar Score when arecorder (sold separately) is connected.
However, printing is not available during CTG printing. End CTG
printing before printing.

(4)

Input

Check neonatal information for each timer. The score is totalized at
the bottom right depending on the selected items.

The delivery information and each Apgar Score can also be displayed as a side window alongwith the waveform (refer to P.33 “4-2-5 Side Window“).

3. Touch [Input].
The Apgar Score is registered.

Touch [Close] to cancel the Apgar Timer input.

Actocardiograph MT-830 Operation Manual85

■ Print the Apgar Score list
Touching [Print] prints out a list of delivery information and the Apgar Score when a recorder (soldseparately) is connected. The score for the number of fetuses will be printed.

(1)
(2)

(3)

86

No.

Settings Item

Function(1)

Printout date/time

Prints out the date and time on which the list was printed.

(2)

Patient information

Prints out the patient ID and the patient’s name.

(3)

Score

Prints out the score for each time.

Actocardiograph MT-830 Operation Manual

6 Using This Device

6-11. Switch to Maternal Monitoring Mode
After all fetuses have been delivered, switching to Maternal monitoring Mode suppresses an alarmor navigates to a screen specialized for Maternal Vitals. To switch to Maternal monitoring Modeduring monitoring, touch(mode selection) button on top of the main unit or [M.Monitor] on the
Bottom button or Menu screen.
Important
In Maternal monitoring Mode Switch, the alarm of the relevant fetus will stop.

After F.DEL events for all fetuses are registered, the Maternal monitoring Mode entry confirmation
screen is displayed.

1. Touch(mode selection) button on top of the main unit or [M.Monitor] on
the Bottom button or Menu screen.

The M.Monitor confirmation screen is displayed.

2. Specify measurement conditions and touch [Start].
For the measurement conditions, refer to P.75 “6-7-1 Select Measure Mode to start
monitoring“.

Actocardiograph MT-830 Operation Manual87The screen switches to Maternal monitoring Mode, the Maternal Vitals list is shown on the
Home screen, and “MAT” is shown on the status bar.

When CTG printing is active, starting Maternal monitoring Mode stops printing automatically. You
can also set not to stop printing automatically (refer to P.167 “8-5-9 Print“).

88Actocardiograph MT-830 Operation Manual

6 Using This Device

6-12. Changing the Measure Mode
The measurement mode and measurement conditions can be changed or set using the menu or(mode selection) at the top of the main body in addition to the measurement start screen.

1. Touch [Measure Mode] on the Menu screen.
Press(mode selection) button on top of the main unit to change the mode
after measurement started.

The Measure Mode selection screen is displayed.

Touching(mode selection) button or [M.Monitor] in Delivery mode displays the Maternalmonitoring Mode entry screen (refer to Step 2 in P.87 “6-11 Switch to Maternal Monitoring Mode“).

2. Touch the Measure Mode you want to change, select Waveform size,
Measurement time, NIBP sensor, and set Print, and then touch [OK].

For each measurement condition, refer to P.75 “6-7-1 Select Measure Mode to start
monitoring“.

Actocardiograph MT-830 Operation Manual896-13. Printing the Monitoring Data
You can print data being measured when a recorder (sold separately) is connected.
For the details of the recorder, refer to "Recorder Unit MP-130 Operation Manual".

6-13-1. Print a Top Sheet
The information shown below is printed as a top sheet when printing starts.
You can also change the settings to skip the top sheet from the Admin Settings (refer to P.167 ”8-5-9
Print“).

Patient information

Patient data is printed
by entering the ID when
the device is connected
to our Central monitor.

6-13-2. Print item nameFor a single/twins

For three fetuses

Date and time

Prints the start timeof printing.
The date is notprinted during
monitoring.

Print mode

Print items are printed
depending on theaccessories used or
the selected settings.
These are also printed
when the printconditions arechanged during
monitoring.

90

Actocardiograph MT-830 Operation Manual

6 Using This Device

Print Item Name

Description

FHR1

Printed when Doppler transducer for Fetus 1 HR monitoring isconnected.
In the case of double Doppler single heart, [FHR[SH]] isprinted.

FHR2 -20

Printed when Doppler transducer for Fetus 2 HR monitoring isconnected.
(Printing example when offset “-20” is selected in the settings)* You can select the offset (-20/±0/+20) from the Admin Settings(refer to P.153 "8-5-3-4 Waveform").

FHR3 +20

Printed when Doppler transducer for Fetus 3 HR monitoring isconnected.
(Printing example when offset “+20” is selected in the settings)* You can select the offset (-20/±0/+20) from the Admin Settings(refer to P.153 "8-5-3-4 Waveform").

MHR

Printed when the M.ECG adapter cable is connected.

MPR

Printed when the SpO2 sensor is connected and Maternal
pulse rate is shown as a waveform.

SpO2

Printed when the SpO2 sensor is connected and SpO2 isshown as a waveform.

Right marker

Prints the right marker in “6-13-3 Sample CTG Print“ when theright remote marker switch (twins) was operated.

Left marker

Prints the left marker in “6-13-3 Sample CTG Print“ when theleft remote marker switch (twins) was operated.

ACT

Prints the fetal movement dot of Fetus 1/Fetus 2/Fetus 3(FHR1/FHR2/FHR3).

FM Spike

Prints the fetal movement spike waveform of Fetus 1/Fetus
2/Fetus 3 (FHR1/FHR2/FHR3).

UC

Prints when the Y-shaped Doppler/External UC transducer isconnected or the External UC transducer is connected.
Prints [UC[Hi]] when UC is set to High.

Actocardiograph MT-830 Operation Manual916-13-3. Sample CTG Print
Paper feed speed

Time

Printed at the startof printing andwhen the setting ischanged.

Prints hours/minutes
every 5 minutes andfor every minuteHeart beat monitoring
error

Recording Range
Printed at the start ofthe printing.

Printed when the two
fetal heart rates areclose to each other.

Right marker
Left marker

1 dot
2 dotsPrinted when the
remote marker switch
was pressed.

Printed when the
fetal movement
exceeds the preset
fetal movement

ZeroSetPrinted when thecontraction is set
to zero while
monitoring.

Contraction cycle
UC waveform

Heart rate waveform

Prints minute (M) andsecond (S)for each cycle

Fetal movement
spike waveform

Printed when enabledin the settings.

↑ R.O. symbol

Printed when the heart rate is higher
than the range of the recording paper↓ R.O. symbol

Printed when the heart rate is lower than
the range of the recording paper

Patient ID

Printed when the patient ID waschanged while printing

Internal Examination

Printed when an internal examination wasentered

Icon

92

DetailActocardiograph MT-830 Operation Manual

Event

Printed when an event was entered

Icon

Detail

6 Using This Device

6-13-4. Print the fetal movement markAsk the patient wearing this device to press the remote marker switch when she recognizes a fetal
movement. A mark is printed when the switch is pressed. Use the left and right switches when usinga switch for twins.

6-13-5. Stop printing
Once measurement is complete, printing ends; however, you can perform the operation shown
below to end printing when you want.

1. Touch [Print] on the Menu screen.

When “Auto Feed” is set to “On” in the Admin Settings, paper will be fed to the start of thenext page, and then printing stops (refer to P.167 “8-5-9-1 Print1“).

2. Lightly hold the top of the folding line of the recording paper, and then cut the
paper downward.

Actocardiograph MT-830 Operation Manual936-14. Suspending/Resuming Measurement
You can suspend or resume measuring during monitoring.

6-14-1. Suspend Measurement
Follow the operation below to suspend measurement. Saving CTG data also stops while measuring
is suspended.
The following list shows functions that stop and do not stop during suspension:
Functions that stop duringsuspension• CTG recording• Counting measurement time
• Judging an alarm resulting froma sensor• NIBP measurement• Input Internal Examination• Event

Functions that do not stop during suspension• Monitor sound• Updating a monitoring value from a sensor• Judging an alarm not resulting from a sensor• Apgar Timer/Input* Other functions not listed do not stop

1. Touch [Measure] on the Bottom button or Menu screen.

The Measuring screen is displayed.

2. Touch [Suspend].

The measurement is suspended.

Touch [End] to end the measurement completely.

94

Actocardiograph MT-830 Operation Manual

6 Using This Device

6-14-2. Resume Measurement
Follow the operation below to resume suspended measurement. Once the measurement has
resumed, saving CTG data will also resume.

1. Touch [Measure] on the Bottom button or Menu screen.

The Suspending measurement screen is displayed.

2. Touch [Resume].

The measurement will resume.

Touch [End] to end the measurement completely.

Actocardiograph MT-830 Operation Manual956-15. Stopping Monitoring
Follow the operation below to stop measurement. Saving CTG data stops after the measurement iscomplete, and no data will be sent to our Central monitor.
In addition, you can stop measuring automatically after the specified time has elapsed by setting themeasurement time (refer to P.75 “6-7-1 Select Measure Mode to start monitoring").

(1) Stop Monitoring
Stop measuring if it is currently active.

1. Touch [Measure] on the Bottom button or Menu screen.

The Measuring screen is displayed.

2. Touch [End].

The measurement will end.

Touch [Suspend] to stop the measurement temporarily.

96

Actocardiograph MT-830 Operation Manual

6 Using This Device

6-16. Display the Stored Data
The monitoring data for the last 72 hours is stored in the built-in memory and can be displayed orprinted out on the recording paper and backed up to a USB memory.
Old data exceeding 72 hours is automatically deleted in chronological order. Back up necessary data
before going over 72 hours.

6-16-1. History Screen
Press and hold the waveform area to display stored data during monitoring. To display the stored
data for which measurement has been completed, refer to P.98 “6-16-2 View the Stored Data“.
If you want to see the waveforms hidden by the reference data information window (see (7) below),
touch the window to move it to the upper right. Touch the window again to return it to its original
position (upper left).

(1)

(7)

(2)

(3)

(5)

(4)

(6)

No.

Settings Item

Function(1)

Monitoring value

Displays the value currently acquired from the sensor, not thestored data.

(2)

Close

Exits the stored data display and returns to the current Home
screen.

(3)

Side window

Displays information on stored data in the side window. The
following information is available for display on the History
screen:• Internal Examination list

• Event list
• Maternal Vitals list
• Apgar Score

Actocardiograph MT-830 Operation Manual

97

No.

Settings Item

Function(4)

Slider

Displays the elapsed time above the bar and time under the bar.
The green knob shows the time zone being referenced. Touchon the slide bar or slide the knob to change the time zone.
A dot above the bar indicates the time of occurrence of an event
while a dot under the bar indicates the time when an internal
examination was made.

(5)

Print

Starts printing CTG data from the time displayed on the screen
when a recorder (sold separately) is connected.

(6)

Information
display

Displays information on the sensor status, events, and internal
examination on the screen. With every single touch of the
button, the icon changes from "Show only icon" → "Showdetails" → "Nothing shown" in this sequence.

(7)

Reference data
information

Displays the patient’s name and time of stored data beingreferenced.

6-16-2. View the Stored DataStored data for which measurement has been completed is shown on the Home screen.

Press and hold the waveform area to display stored data being measured.

1. Touch [Memory] on the Menu screen.

Previous measurement data will be displayed.

98

Actocardiograph MT-830 Operation Manual

6 Using This Device

2. Select the measurement data you want to display and touch [View].

• Use the top tab to switch between [Internal] and [USB Memory] to show data in the respective
storage.

• Touch• Touchor

to switch to the previous or next page.

or

to switch to the first or last page.

A confirmation screen is displayed.

3. Touch [Yes].

The selected stored data is shown on the Home screen.

6-16-3. Print the Stored Data
You can print stored data for which measurement is complete when a recorder (sold separately) isconnected.

You can touch [Print] on the Bottom button to print while the History Screen is displayed.

Actocardiograph MT-830 Operation Manual991. Touch [Memory] on the Menu screen.

Previous measurement data will be displayed.

2. Select the measurement data you want to display and touch [Print].

• Use the top tab to switch between [Internal] and [USB Memory] to show data in the respective
storage.

• Touch• Touchor

to switch to the previous or next page.

or

to switch to the first or last page.

A confirmation screen is displayed.

3. Touch [Yes].

Printing starts.

100 Actocardiograph MT-830 Operation Manual

6 Using This Device

6-16-4. Save (Copy) the Stored Data
Use a USB memory to save the stored data to an external medium.

1. Insert a USB memory into I/O connector 2 or 3 on the right side of the mainunit.

I/O connector 3
I/O connector 2

Right-side
2. Touch [Memory] on the Menu screen.

Previous measurement data will be displayed.

3. Select the measurement data you want to save and touch [Copy].

Actocardiograph MT-830 Operation Manual 101

• Use the top tab to switch between [Internal] and [USB Memory] to show data in the respective
storage.

• Touchor
to switch to the previous or next page.
• Touchor
to switch to the first or last page.
• To select all data, touch [Select All].
A confirmation screen is displayed.

4. Touch [Yes].

The data is copied to the USB memory.
Important
Do not remove the USB memory until copying is complete.

6-16-5. Delete the Stored Data
You can delete the stored data. To delete data saved in the internal memory or USB memory,connect before operation.

1. Touch [Memory] on the Menu screen.

Previous measurement data will be displayed.

102 Actocardiograph MT-830 Operation Manual

6 Using This Device

2. Select the measurement data you want to delete and touch [Delete].

• Use the top tab to switch between [Internal] and [USB Memory] to show data in the respective
storage.

• Touchor
to switch to the previous or next page.
• Touchor
to switch to the first or last page.
• To select all data, touch [Select All].
A confirmation screen is displayed.

3. Touch [Yes].

Deleting starts.
Important
To remove the data in the USB memory, do not remove the USB memory until deleting iscomplete.

Actocardiograph MT-830 Operation Manual 103

6-17. Switching to Night Mode
You can use screen and key sound settings that are suitable for nighttime by entering Night Modewhen the screen is too bright or you do not want to make sounds when touching the keys.

From the Device Settings, the screen brightness and key sound On/Off can be set for Night Mode (refer
to P.146 “8-4-3 Other“).

1. Touch [Night Mode] on the Menu screen.

The screen and key sound are set to Night Mode.
Night Mode will be reset if you perform the same operation again.

104 Actocardiograph MT-830 Operation Manual

6 Using This Device

6-18. Using Out of Hospital
Switch to Out of Hospital mode when you send CTG data to our Central monitor outside the hospital.
Return the mode to In-hospital mode to use inside the hospital.
The out-of-hospital mode is intended for communication via smartphone tethering and cannot be
started while a wired LAN cable is connected. Also, if a wired LAN cable is plugged in during the outof-hospital mode, the system automatically switches to the in-hospital mode.
You can determine if you are in the out-of-hospital mode by looking at the central monitor connection
status iconon the status bar.
The following settings must be made in advance for out-of-hospital use.
• Wireless LAN setting for out-of-hospital use (see P.162 "8-5-6-2 Wireless LAN")• Bed ID setting for out-of-hospital use (see P.169 "8-5-10 Installation")
Important
Use Out of Hospital mode after making sure that the mode is shown on the Central monitor.

1. Touch [Out of Hospital] on the Menu screen.

Out of Hospital mode will be reset if you perform the same operation again.

If "Out of Hospital" is not shown on the menu screen, check whether the button is hidden in [Operation /display] - [Menu] in Admin Settings (see P.158 "8-5-5-1 Menu").

Actocardiograph MT-830 Operation Manual 105

6-19. Displaying the Side Window
You can show items that you always want to check during measurement in the side window. In
addition, turning the device OFF hides the side window.

For details on each side window, refer to P.33 "4-2-5 Side Window".

1. Touch(Side window) on the Bottom button.

The side window selection screen is displayed.

2. Select items you want to show in the side window.

The selected items will be displayed in the side window (“Event list” selected below as an
example).

3. To close the side window, touch
screen.

The side window closes.

106 Actocardiograph MT-830 Operation Manual(Close) on the Bottom button or Menu

6 Using This Device

6-20. Finishing Using the Device(1) Turn off the device
1. Press(Power) button on top of the main unit.
The device will be turned off.
Follow the procedure below to shut down the device completely.
The battery power in standby mode will be saved if the device is shut down completely,
however, it takes a while to start up the device next time.

1．Press and hold the(Power) button (for 5 seconds or more).
A confirmation message is displayed.
2. Touch [Yes].

The device LCD turns off.

• As long as the AC adapter is connected, the power indicator flashes or is lit even if the device
is turned off.

• The device shuts down automatically when the battery level is running low even if the power isturned off with a short press of the power button. In that case, it takes a while to start up thedevice next time.

(2) Remove the transducer from the patient
1. Detach the transducer belt.
2. Remove the transducer from the abdominal wall.
3.

Wipe the ultrasound gel on the abdominal wall with tissues or a paper towel.

(3) Remove the cuff from the patient’s arm in the case of NIBP measurement(4) Remove the sensor from the patient’s finger in the case of SpO2

measurement(5) Sterilize the parts that have touched the surface of the skin
Sterilize the transducer/remote marker switch.
Be sure to sterilize after every use (refer to P.173 "9-1 Cleaning and Sterilization").

Actocardiograph MT-830 Operation Manual 107

(6) Disconnect the plugs from the main unit
● NIBP air hose for adults
Push the connector into the main unit to disconnect the plug.

NIBP connector● Other plugs
Hold and pull the plug straight out to disconnect.
Important
To disconnect the plug, do not twist the plug or pull the cord. Failure to follow this instruction may
damage the connector, plug, or cord.

(7) Make sure there is no damage or deformation found on the main unit,transducers, patient cables, etc.

(8) Make sure there is no dirt or foreign matter found on the main unit,transducers, patient cables, etc.

108 Actocardiograph MT-830 Operation Manual

7 Actions for Alarms and Settings

7.

Actions for Alarms and Settings

7-1. Actions for Alarms
There are two different alarms; biological alarms, including Fetal Heart Rate, Maternal Pulse Rate,
Maternal BP, Maternal SpO2 and device alarms related to the device. When an alarm is issued
during monitoring, the user is notified as shown below. Perform the necessary actions.
For Alarm Settings, refer to P.121 “7-3 Alarm Settings“ and P.166 “8-5-8 Alarm“.
• An alarm tone rings (it does not ring when the alarm tone is set to [Mute]).

•(alarm) in the monitoring area blinks (see below).
• A corresponding alarm message is displayed in free space on top of the screen (status bar).
• The volume can be set separately for the biological alarm and the device alarm.
Important
The device alarm stops automatically once the cause of the alarm is removed, however, the biologicalalarm does not stop unless the clear alarm operation is performed.

Pay attention to changes on the LCD screen and recording when monitoring with thealarm tone set to [Mute].
Failure to follow this instruction may result in the alarm being missed.
Check the settings of the alarm periodically. The alarm may not be raised dependingon the setting.
Example of a biological alarm

Example of an alarm other than a biologicalalarm

An alarm icon appears in the monitoring area
where the biological alarm is issued and blinks in
red every 0.5 seconds.

When an alarm other than the biological alarm isissued, an alarm icon appears in the monitoringarea and blinks in yellow every two seconds.

* Sometimes a biological alarm with the monitoring value "---" (unmonitoring state) is issued.

Actocardiograph MT-830 Operation Manual 109

7-1-1. List of Alarms■ Biological alarm
Message

Reason for the Alarm

ActionThe heart rate was higher
than the upper limit or lower
than the lower limit for morethan the delay time.

Refer to P.114 "7-1-2 Fetal Heart
Rate Alarm"

The heart rate exceeded theupper limit or the lower limit
and this state continued.

Refer to P.115 "7-1-3 Maternal
Heart Rate / Maternal Pulse Rate
Alarm"

SpO2: Oxygen Saturation

The SpO2 value exceeded
the preset upper limit or the
lower limit and this statecontinued.

Refer to P.117 "7-1-5 Arterial Blood
Oxygen Saturation (SpO2) Alarm"

NIBP: Systolic BP

The BP value exceeded thepreset upper limit or lower
limit and this state continued.

Refer to P.116 "7-1-4 Non-Invasive
Blood Pressure (NIBP) Alarm"

Reason for the Alarm

ActionSignal Error

The following signal error
alarm is issued.
・Two Doppler transducers
may be monitoring the heart
rate of a single fetus.
・The same heartbeat may
be detected for the fetal
heartbeat and the maternal
heartbeat.

Reposition the Doppler transducer.

No Multiple transducers

Multiple transducers wereconnected in combination
which is prohibited.
Ex.: Two External UC
transducers were connected.

Disconnect either transducer.

Transducer unidentifiable

A transducer other thanthose specified by us isconnected.

Connect our specified product.

A transducer which is notsupported by the device
software is connected.

Update the device software.

1DOP transducer: Check

Doppler transducer for Fetus
1 HR monitoring is notcorrectly connected.

Reconnect the Doppler transducer
for Fetus 1 HR monitoring.

2DOP transducer: Check

Doppler transducer for Fetus
2 HR monitoring is notcorrectly connected,

Reconnect the Doppler transducer
for Fetus 2 HR monitoring.

1DOP: Heart Rate
2DOP: Heart Rate
3DOP: Heart Rate
DOP[SH]:Heart Rate
M.ECG: Heart Rate
SpO2: Pulse RateNIBP: Mean BP
NIBP: Diastolic BP■ Device alarm
Message

110 Actocardiograph MT-830 Operation Manual

7 Actions for Alarms and Settings
Message

Reason for the Alarm

Action3DOP transducer: Check

Doppler transducer for Fetus
3 HR monitoring is notcorrectly connected.

Reconnect the Doppler transducer
for Fetus 3 HR monitoring.

Check E.UC sensor

The External UC transducer
is not correctly connected.

Reconnect the External UC
transducer.

UC: Check UC Transducer

The External UC transducer
is not correctly positioned.

Change the application position of
the External UC transducer.
Change the tightness of thetransducer belt.

M.ECG: Check ElectrodeThe electrode is
disconnected in M.ECG.

Check the electrode and connect itagain.

The device failed.

Contact us or our distributor torequest repairs.

Could not confirm the cuff
pressure though the pump
was activated.

Check if the cuff and the connector
are connected correctly.

Could not pressurize the cuff
properly.
Air leakage could bepossible.

Check the connected cuff and theconnector.

Blood pressure/pulse ratecannot be judged correctly.

Check if the cuff is wrappedcorrectly, there is no body
movement, the measurement
posture is appropriate, ask thepatient to stay still in bed, and thenmeasure again.

Too many detected pulses.

It may be caused by the body
movement or vibration.
Check if the cuff is wrappedcorrectly, there is no body
movement, the measurement
posture is appropriate, ask thepatient to stay still in bed, and thenmeasure again.

Could not detect a pulse withBP monitoring.

Check if the cuff is wrappedcorrectly, there is no body
movement, the measurement
posture is appropriate, ask thepatient to stay still in bed, and thenmeasure again.

M.ECG: Check F Electrode
M.ECG: Check L Electrode
M.ECG: Check R Electrode
M.ECG: Check etc1 Electrode
M.ECG: Check etc2 Electrode
M.ECG: Over Voltage
M.ECG: Low Voltage
NIBP: Check Cuff

Actocardiograph MT-830 Operation Manual 111

Message

Reason for the Alarm

ActionNIBP: Leak

Could not measure correctly
because insufficient pressure
for the blood pressure
measurement.

Adjust First Pressure on “Measure
Settings” → ”NIBP” and measureagain.

NIBP: Artifact

Could not pressurize or
depressurize the cuff
properly due to body
movement.

Ask the patient to stay still in bed,
and then measure again.

NIBP: Out of Range

The measured BP value isout of range.

It may be caused by a weak pulse
signal, body movement, or an
irregular heartbeat.
If the error persists, use palpation
or invasive blood pressure method
to measure the BP.

NIBP: Check Interval

Measure the BP continuously
for more than 30 minutes.

Check the patient’s status, anddetermine if you should continue tomeasure.

NIBP: Over Cuff Pressure

Pressure exceeded theupper limit value.

It may be caused even by body
movement. Check if the cuff iswrapped correctly, there is no body
movement, the measurement
posture is appropriate, ask thepatient to stay still in bed, and thenmeasure again.

Too fast to pressurize thecuff.

It may be caused by a bent air hoseor use of an inappropriate cuff.
Check the connected cuff and air
piping, and settings for what tomeasure.

NIBP: Time OverBP measurement time
including remeasurement
exceeded the threshold.

Check for an error atremeasurement and check therelevant phenomenon.

NIBP: Unit Failure

The manometer failed.

Contact us or our distributor torequest repairs.

SpO2: Check Sensor

The sensor is not applied
appropriately.

Check that the sensor is not applied
too tight.
Reposition the sensor.

SpO2: Pulse Search

Detected a pulse.

This is not a failure. The error
disappears once the detection iscomplete.

SpO2: Low Pulse

Cannot measure because
the signal is not strong
enough.

Check the patient’s status.
For patients whose bloodstream on
the applied area is poor, reposition
the application position at least
every 2 hours. Do not apply to thearm with the BP cuff applied.

SpO2: Unit Failure

The SpO2 unit failed.

Contact us or our distributor torequest repairs.

112 Actocardiograph MT-830 Operation Manual

7 Actions for Alarms and Settings
Message

Reason for the Alarm

ActionLow Battery

Battery voltage of the main
unit is low.

Connect the power cord and charge
the battery.

Clock Low Battery

The voltage of the clock
battery is low.

Contact us or our distributor to
replace the battery.
* Be sure to correct the time when
you continue monitoring.

System Error

The device failed.

Contact us or our distributor torequest repairs.

■ Alarms issued when the recorder (MP-130) is connected
Message

Reason for the Alarm

ActionRecorder: Paper Out

The recorder cover is open orrecording papers are used up.

Refer to P.118 "7-1-6 Paper Out
Alarm".

Recorder: Temperature

The internal temperature of therecorder is rising.

Stop using the recorder and wait
until the recorder’s temperature
has lowered before you try toprint again.

Recorder: Unit Error

An error has occurred with therecorder.

Stop using the recorder andcontact us or our distributor torequest repairs.

Recorder: Low Battery

Battery voltage of the recorder islow.

Connect the power cord andcharge the battery.

Recorder: Element

An error occurred with the head.

Contact us or our distributor.

Actocardiograph MT-830 Operation Manual 113

7-1-2. Fetal Heart Rate Alarm
Important
From the Admin Settings, if the Alarm Restraint feature is set to [ON] when the power is on, the Fetal
Heart Rate Alarm feature is not activated until five minutes have passed after turning on the power, orfrom when the Doppler transducer was connected, or when a good heartbeat signal was monitored formore than ten seconds. This is to avoid the frequent occurrence of the fetal heart rate alarm. Pay close
attention to the condition of the heart rate recorded during the selected preset time (refer to P.166 “8-5-8Alarm").

(1) Fetal Heart Rate Alarm triggered
Example of fetal heart rate alarm• An alarm tone sounds (It does not sound when [Mute] is set in Alarm Settings).
•(alarm) in the monitoring area blinks red every 0.5 seconds.
• “1DOP:Heart Rate”, “2DOP:Heart Rate”, or “3DOP:Heart Rate” is displayed in the freespace.
(2) Confirm the fetal heart rate alarm
1. Touch the monitoring area where the alarm is issued or press(Alarm) button on top of the main unit.
The heart rate alarm is suspended.
The alarm sound stops and the alarm suspension icon blinks.

2. Check the fetal and maternal condition and take appropriate measures under
the direction of a physician.

114 Actocardiograph MT-830 Operation Manual

7 Actions for Alarms and Settings(3) Clear the Fetal Heart Rate Alarm
The alarm will be cleared if the monitored value returns to the specified range while the alarm
suspended icon is blinking.
Important
The Fetal Heart Rate Alarm is not automatically cleared even if the monitored value returns to thenormal range. the user must press(Alarm) button on top of the main unit or themonitoring area blinking in red when this alarm has been triggered.

7-1-3. Maternal Heart Rate / Maternal Pulse Rate Alarm

MT-832-L / P(1) Maternal Heart Rate / Maternal Pulse Rate Alarm triggered
Example of Maternal Heart Rate / Maternal Pulse Rate Alarm• An alarm tone sounds (It does not sound when [Mute] is set in Alarm Settings).
•(alarm) in the monitoring area blinks red every 0.5 seconds.
• “M.ECG:Heart Rate” or “SpO2:Pulse Rate” is displayed in the free space.
(2) Check the Maternal Heart Rate / Maternal Pulse Rate Alarm
1. Touch the monitoring area where the alarm is issued or press(Alarm) button on top of the main unit.
The Maternal Heart Rate / Maternal Pulse Rate alarm is suspended.
The alarm sound stops and the alarm suspension icon blinks.

2. Check the fetal and maternal condition and take appropriate measures under
the direction of a physician.

Actocardiograph MT-830 Operation Manual 115

(3) Clear the Maternal Heart Rate / Maternal Pulse Rate Alarm
The alarm will be cleared if the monitored value returns to the specified range while the alarm
suspended icon is blinking.

7-1-4. Non-Invasive Blood Pressure (NIBP) Alarm

MT-832-L / P(1) NIBP Alarm triggered
Example of NIBP Alarm• An alarm tone sounds (It does not sound when [Mute] is set in Alarm Settings).
•(alarm) in the monitoring area blinks red every 0.5 seconds.
• “NIBP:Systolic BP”, “NIBP:Mean BP” or “NIBP:Diastolic BP” is displayed in the freespace.
(2) Confirm the NIBP Alarm
1. Touch the monitoring area where the alarm is issued or press(Alarm) button on top of the main unit.
The NIBP Alarm is suspended.
The alarm sound stops and the alarm suspension icon blinks.

2. Check the fetal and maternal condition and take appropriate measures under
the direction of a physician.
(3) Clear the NIBP Alarm
The alarm will be cleared if the monitored value returns to the specified range while the alarm
suspended icon is blinking.

116 Actocardiograph MT-830 Operation Manual

7 Actions for Alarms and Settings

7-1-5. Arterial Blood Oxygen Saturation (SpO2) Alarm

MT-832-L / P(1) SpO2 Alarm triggered
Example of SpO2 Alarm• An alarm tone sounds (It does not sound when [Mute] is set in Alarm Settings).
•(alarm) in the monitoring area blinks red every 0.5 seconds.
• “SpO2:Oxygen Saturation” is displayed in the free space.
(2) Confirm the SpO2 alarm
1. Touch the monitoring area where the alarm is issued or press(Alarm) button on top of the main unit.
The SpO2 Alarm is suspended.
The alarm sound stops and the alarm suspension icon blinks.

2. Check the fetal and maternal condition and take appropriate measures under
the direction of a physician.
(3) Clear the SpO2 Alarm
The alarm will be cleared if the monitored value returns to the specified range while the alarm
suspended icon is blinking.

Actocardiograph MT-830 Operation Manual 117

7-1-6. Paper Out Alarm(1) Paper Out Alarm triggered• An alarm tone sounds (It does not sound when [Mute] is set in Alarm Settings).
•(alarm) in the monitoring area blinks yellow every two seconds.
• “Recorder:Paper Out” is displayed in the free space.
(2) Confirm the alarm
1. Touch the monitoring area where the alarm is issued or press(Alarm) button on top of the main unit.
The Paper out alarm is suspended.
The alarm sound stops and the alarm suspension icon blinks.

2. Check the recorder and load new recording paper if it is empty.
Close the cover completely (refer to P.39 “5-2 Loading Recording Paper“).
The alarm is automatically cleared when recording paper is loaded and the cover isclosed.

(3) Print the recording while printing was suspended
When recording paper is used up during printing, loading new recording paper enables
automatic follow-up print (high-speed print) of CTG indicating the paper was used up until newpaper was loaded.

7-1-7. Other Alarms
As well as the alarms described above, there are other device alarms listed on P.110 “7-1-1 List of
Alarms”.

(1) When an alarm occurs• An alarm tone sounds (It does not sound when [Mute] is set in Alarm Settings).
•(alarm) in the monitoring area blinks yellow every two seconds.
• A corresponding alarm message is displayed in the free space.
(2) Confirm the alarm
1.

Touch the monitoring area where the alarm is issued or press(Alarm) button on top of the main unit.
The alarm is suspended.
The alarm sound stops and the alarm suspension icon blinks.

2.

Perform the necessary action in response to the alarm message.
The alarm is automatically cleared when the condition is remedied.

118 Actocardiograph MT-830 Operation Manual

7 Actions for Alarms and Settings

7-2. Alarm Specifications(1) Alarm triggered
Device alarms related to biological alarms and sensors are triggered only in Measure status.
If Alarm Restraint settings are set to “Yes” on P.166 “8-5-8 Alarm“, device alarms related tobiological alarms and sensors are restrained until correct signals are input at least for 5
minutes after the power is turned On or a sensor is connected.
Time is counted down until the restraint is cleared in the free space on the status bar during
Alarm Restraint.
If a biological alarm and a device alarm are issued concurrently, the display and the alarm toneof the biological alarm are prioritized.
If more than one alarm is triggered concurrently, a message showing details of the alarm isdisplayed on the status bar one by one.

(2) Intended position of the user
The alarms for this device are intended to notify personnel in the area that an issue has
occurred and they should be able to see the monitor or the recording paper.

(3) Suspension (reset) of an alarm
Touch the monitoring area for alarm conditions or press(Alarm) button on top of themain unit to suspend all triggered alarms. Blinking in the monitoring area changes to lit, andthe alarm stops. The alarm message on the status bar remains displayed.
The alarm will be unsuspended automatically according to “Alarm suspend Time” and “SpO2
Alarm suspend Time” on P.166 “8-5-8 Alarm“.
If a new alarm is triggered during alarm suspension, the suspended alarm will be
unsuspended.
It will be unsuspended when connection with the Central monitor failed or was disconnected.
Touch the Alarm suspension icon on the monitoring area or press(Alarm) button on
top of the main unit during alarm suspension to unsuspend all triggered alarms.
Biological alarms are not reset automatically until the alarm is reset by the operator even if thesymptom resulting in the alarm disappeared.
Press(Alarm) button on top of the main unit to reset the alarm as the alarm will bereset along with the alarm suspension or reset operation.
Device alarms will be reset automatically once the symptom resulting in the alarm
disappeared.

(4) Information delay
There are delays to the alarm signal for this device caused by the following processes.
• Delay caused by the heart rate detection algorithm• Delay caused by internal communication• Delay caused by network

Actocardiograph MT-830 Operation Manual 119

Delay Time for each alarm• Fetal Heart Rate : 15 sec. or less * Alarm Delay Time: 10 sec.
• Maternal Heart Rate : 10 sec. or less
• Maternal Pulse Rate : 24 sec. or less
• Maternal SpO2: 24 sec. or less
• Maternal NIBP: 1 sec. or less after completion of measurement• Alarm notification delay time to the Central monitor: 4 sec. or less
(5) Alarm history
Alarms triggered during monitoring are saved in the alarm history along with CTG data.
Therefore, alarms triggered before or after Measure will not remain in the history.
72-hours of CTG data are saved in the Fetal monitor, therefore, if you continue to monitor, thealarm history is also erased along with old CTG data.
The alarm history which contains alarms issued so far is retained when the power is forcibly
turned OFF due to a low battery of the Fetal monitor.

(6) Presets for an alarm
Presets that can be selected on the Prepare screen include alarm setting values.
To read out the preset, refer to P.55 “6-1 Registering Patient Information“.
To create a preset, refer to P.154 “8-5-3-5 Preset“.
If the power is turned OFF during monitoring due to a low battery, the preset is restored to an
unselected state after restarting. Therefore, you need to change the alarm settings so that they
will be optimized for the patient to resume monitoring.

(7) Distributed alarm system
The device can also show triggered alarms on the network-connected Central monitor.
If there is a problem in communication with the Central monitor during monitoring, themessage “Failed to connect with Central” is displayed. In this case, note that alarms cannot beshown on the Central monitor.
To meet requirements for the distributed alarm system standards, the device should be usedwith a Central monitor compliant with the same standards.
Requirements for some distributed alarm system standards may not be met if the device isused with a non-compliant Central monitor.
Setting a proper bed ID on the Fetal monitor allows you to determine on which Fetal monitor
an alarm is triggered on the Central monitor.

(8) Method and timing for verifying alarm system function
Check periodically that the alarm function for this device is operating normally.
• Verification timing: every six months• Verification method: Refer to P.177 “9-2.Inspections to be Conducted by Users”

120 Actocardiograph MT-830 Operation Manual

7 Actions for Alarms and Settings

7-3. Alarm Settings
In Alarm Settings the volume of an alarm and the upper/lower value of a triggered alarm can be set.
Use setting values suitable for a patient for monitoring.
In addition, if the Fetal monitor is replaced with another device during monitoring, check if set values
for the alarm are suitable for the patient being monitored.
Setting items include “Common”, “F.HR”, “M.HR / M.PR”, “NIBP”, and “SpO2”.
Follow the steps below to display the Alarm Settings screen.

1. Touch [Alarm Settings] on the Menu screen.

The Alarm Settings screen is displayed.

2. Select a setting item.

The right pane shows a window for setting each item.
Touch [× Close] to exit the Alarm screen.

Actocardiograph MT-830 Operation Manual 121

7-3-1. Common
Touch(Menu) - [Alarm Settings] on the Bottom button to display the Common settings screen.
In Common settings, set B.Alarm Volume, M.Alarm Volume, and Signal Error Alarm respectively.

Settings Item

Function

Default
Value

B.Alarm Volume

Set the volume of the biological alarm.

MediumM.Alarm Volume

Set the volume of the device alarm.

MediumSignal Error Alarm

Set the signal error alarm to On or Off.

On

• The value in “M.Alarm Volume” cannot be larger than the value in “B.Alarm Volume”.
• A “Signal Error Alarm” is issued when two Doppler transducers may be monitoring the heart rate of asingle fetus or a heart rate which is identical between the fetus and the mother.

122 Actocardiograph MT-830 Operation Manual

7 Actions for Alarms and Settings

7-3-2. F.HR
Touch
(Menu) - [Alarm Settings] - [F.HR] on the Bottom button to display the F.HR settings
screen. In F.HR settings, set Fetal Heart Rate Alarm On/Off, the upper/lower value, and Delay Time.

Touchor slide

Settings Itemto specify a value.

Function

Default
Value

F.HR Alarm

Set the Fetal Heart Rate Alarm to On or Off.

On

Lower Limit

Select whether or not (On or Off) the alarm is triggered
when the lower limit is exceeded, and specify a pulse(80-120) (in increments of 10 bpm) when On is selected.

On
100 bpm

Upper Limit

Select whether or not (On or Off) the alarm is triggered
when the upper limit is exceeded, and specify a pulse(160-200) (in increments of 10 bpm) when On is selected.

On
180 bpm

Delay Time

Set the time to trigger an alarm.

20sec

Actocardiograph MT-830 Operation Manual 123

7-3-3. M.HR / M.PR

MT-832-L / P

Touch(Menu) - [Alarm Settings] - [M.HR / M.PR] on the Bottom button to display the M.HR /M.PR settings screen. In M.HR / M.PR settings, set Maternal Heart Rate Alarm and Maternal Pulse
Rate Alarm On/Off, and the upper/lower value.

Touchor slideto specify a value.

Settings Item

Function

Default
Value

M.HR Alarm

Set the Maternal Heart Rate Alarm to On or Off.

Lower Limit

Select whether or not (On or Off) the alarm is triggered
when the lower limit is exceeded, and specify a heart rate
(30-150) (in increments of 5 bpm) when On is selected.

On
40 bpmUpper Limit

Select whether or not (On or Off) the alarm is triggered
when the upper limit is exceeded, and specify a heart
rate (50-230) (in increments of 5 bpm) when On isselected.

On
120 bpm

M.PR Alarm

Set the Maternal Pulse Rate Alarm to On or Off.

Lower Limit

Select whether or not (On or Off) the alarm is triggered
when the lower limit is exceeded, and specify a pulse rate
(30-150) (in increments of 5 bpm) when On is selected.

On
40 bpmUpper Limit

Select whether or not (On or Off) the alarm is triggered
when the upper limit is exceeded, and specify a pulse
rate (50-230) (in increments of 5 bpm) when On isselected.

On
120 bpm

124 Actocardiograph MT-830 Operation ManualOnOn

7 Actions for Alarms and Settings

7-3-4. NIBP

MT-832-L / P

Touch(Menu) - [Alarm Settings] - [NIBP] on the Bottom button to display the NIBP settings
screen. In NIBP settings, set NIBP alarm On/Off, and the upper/lower value of Systolic BP, Diastolic
BP, Mean BP.

Touchor slide

Settings Itemto specify a value.

Function

Default
Value

NIBP Alarm

Set the NIBP Alarm to On or Off.

On

SYS Lower Limit

Select whether or not (On or Off) the alarm is triggered when
the lower limit is exceeded and specify a blood pressure (50150) (in increments of 10mmHg) when On is selected.

SYS Upper Limit

Select whether or not (On or Off) the alarm is triggered whenOnthe upper limit is exceeded and specify a blood pressure (70- 180mmHg240) (in increments of 10mmHg) when On is selected.

DIA Lower Limit

Select whether or not (On or Off) the alarm is triggered when
the lower limit is exceeded and specify a blood pressure (30120) (in increments of 10mmHg) when On is selected.

DIA Upper Limit

Select whether or not (On or Off) the alarm is triggered whenOnthe upper limit is exceeded and specify a blood pressure (70- 100mmHg130) (in increments of 10mmHg) when On is selected.

MAP Lower Limit

Select whether or not (On or Off) the alarm is triggered when
the lower limit is exceeded and specify a blood pressure (30120) (in increments of 10mmHg) when On is selected.

MAP Upper Limit

Select whether or not (On or Off) the alarm is triggered whenOnthe upper limit is exceeded and specify a blood pressure (70- 140mmHg150) (in increments of 10mmHg) when On is selected.

On
100mmHg

On
50mmHgOn
50mmHg

Actocardiograph MT-830 Operation Manual 125

7-3-5. SpO2

MT-832-L / P

Touch(Menu) - [Alarm Settings] - [SpO2] on the Bottom button to display the SpO2 settings
screen. In SpO2 settings, set SpO2 Alarm On/Off, and the upper/lower value.

Touchor slideto specify a value.

Settings Item

Function

Default
Value

SpO2 Alarm

Set the SpO2 Alarm to On or Off.

On

SpO2 Lower Limit

Select whether or not (On or Off) the alarm is triggered
when the lower limit is exceeded and specify an SpO2
value (50-99) (in increments of 1%) when On is selected.

On
95％

SpO2 Upper Limit

Select whether or not (On or Off) the alarm is triggered
when the upper limit is exceeded and specify an SpO2
value (70-100) (in increments of 1%) when On isselected.

On
100%

126 Actocardiograph MT-830 Operation Manual

8 Various Settings

8.

Various Settings

The settings are grouped into those which vary depending on the patient’s status during monitoring
and the basic settings for the device.
The basic settings for the device are divided into Device Settings which can be changed by the userand Admin Settings which can only be changed by the administrator. A password setting is available
in Admin Settings.
For alarm settings, refer to P.121 “7-3 Alarm Settings“.

8-1. Setting Items List
8-1-1. Settings Which Vary Depending on the Patient’s Status During
Monitoring
Menu

Setting Items

Measure Settings

P.133

Dop Focus Range

Shallow

P.134

Single Heart Mode

Off

Threshold of FM dot

25

Select Heartbeat soundF.HR / FMUC Sensitivity

NormalUC Filter
M.ECG

NIBP

Refer to－CommonUC

Default ValueOn

M.ECG Lead

Ⅱ LeadPacemaker Pulse

OffHigh Cut Filter

On

Wired NIBP Measure ModeFirst Pressure
Continuous measurement End Sound

Select Sensor

SpO2 Average Time

CommonDOP

Compress

P.137

P.138

Auto

Continuous measurement Interval
SpO2

P.136

Every 5 minHighMediumP.139

1DOP/2DOP/3DOP/E.UC/M.ECG/NIBP/SpO2

Use

P.140

－

－

External UC －

－

M.ECG

－

－

NIBP

－

－

SpO2

－

－

M.ECG

On

M.ECG Sensitivity

Auto

PULSEWAVE

On

Display Items

P.143

Actocardiograph MT-830 Operation Manual 127

8-1-2. Device Settings Which Can be Changed by the User
Menu

Setting Items

Clock
Installation

Other

Default Value

Date

－

Clock Sync

Auto

Facility ID－

Ward ID－

Bed ID (Wired LAN)－

Bed ID (Wireless/in-hospital)－

Bed ID (Wireless/out-of -hospital)－

Monitor ID－

Normal Screen brightness

100

Normal Key Sound

On

Night Mode Screen brightness

20

Night Mode Key Sound

Off

Refer to
P.144
P.145

P.146

8-1-3. Admin Settings Which Can be Changed by the Administrator
Menu
Function

Measurement

Setting Items
Operation Mode

Poweron/off

MeasureMode（NST）Default
Value

Refer
to

ExpertP.148

Internal Examination

On

Event

On

NST ModeOn

Maternal monitoring ModeOn

Apgar Score

On

Suspension/restart of measurement

On

PresetOn

RecorderOn

Power-on Show screen
Power-on Start measurement
automaticallyPrepareOff

Power-on Measure Mode

Delivery

Confirmation message

On

Waveform size

10min

Measurement time

20min

Measurement at elapsed timeContinue

End SoundHigh

NIBP measurement

ManualPrint
128 Actocardiograph MT-830 Operation Manual

Yes

P.150

8 Various Settings

Menu
MeasureMode(Delivery)

MeasureMode(Maternal)

Info
display

Waveform

Clinical Set

Setting Items

Default
Value

Confirmation message

On

Waveform size

15min

Measurement time

Unspecified

Measurement at elapsed timeContinue

End SoundHigh

NIBP measurement

ManualPrint

Yes

Confirmation message

On

Waveform size

15min

Measurement time

Unspecified

Measurement at elapsed timeContinue

End SoundHigh

NIBP measurement

Auto

Print

No

UC information

Cycle/INT.

SI Display

On

PI Display

On

Internal Exam.

Details

Event

Details

Sensor connection statusOn

FM SpikeOn

Dot of FMOn

REC Speed

30mm/min

FHR2 Waveform Offset

0

FHR3 Waveform Offset

0

M.PR display

Waveform

SpO2 display

NumberNoise cut (F.HR/M.HR)

On
25

PresetCreate New Preset

－

Other

Pressure Unit

mmHg

Temperature unit

°C

Priority of MHR, MPR

MHR

Event

Enable/Disable Each Event

－

Apgar
Timer

Timer11min

Timer2

Use 5minTimer3

Use 10min

Timer volume

Refer
to

P.156

High
Actocardiograph MT-830 Operation Manual 129

Menu
Operation /display

NetworkSensorDefault
Value

Refer
to
P.158

Menu

Menu/Side window On/Off setting－

BottombuttonNST/Delivery/Maternal

－

Color

FHR1/FHR2/FHR3/UC/MHR/NIBP/SpO2

Other

Display of patient information

Fetal
monitorMonitor (Wired)

ManualMonitor (Wireless/in-hospital)

ManualMonitor (Wireless/out-of-hospital)

Fixed toauto

FHR1:2FHR2:9
FHR3:16
UC:11
MHR:10
NIBP:3
SpO2:14On

WirelessLAN

Wireless LAN AP (in-hospital)－

Wireless LAN AP (out-of-hospital)－

ServerCentral monitor (in-hospital)－

Central monitor (out-of-hospital)－

Common

DOP
Alarm

Print

Setting Items

Print1

2DOP

On

3DOP

On

M.ECG

On

NIBP

On

SpO2

On

Wired DOP No Assignment

Fix

B.Alarm Volume

MediumM.Alarm Volume

MediumAlarm Restraint at Power-on

Off

Alarm suspend Time

5min

SpO2 Alarm suspend Time

2min

Top SheetOn

Auto FeedOn

Printing during measurement
suspension

Off

Automatic printing of the mother vitals
list at the end of print

Off

Linked with power on/off

On

FHR2 Waveform Offset

0

FHR3 Waveform Offset

0Internal Examination

Details

130 Actocardiograph MT-830 Operation Manual

P.161

P.164

P.166

P.167

8 Various Settings

Menu

Print2

Installation

SystemSetting Items

Default
Value

Event

Details

Waveform line
・FHR1
・FHR2
・FHR3
・UC
・MHR
・SpO2

2dot
2dot
2dot
2dot
1dot
1dot

Facility ID－

Ward ID
User changes－
Prohibit

Bed ID (Wired)
Bed ID (Wireless/in-hospital)
Bed ID (Wireless/out-of-hospital)
User changes－－－
PermitMonitor ID
User changes－
Prohibit

Admin Setup Password

Notavailable

Setting list－

Return all settings to their initial status

－

Refer
to

P.169

P.170

Actocardiograph MT-830 Operation Manual 131

8-2. Display Settings Screen
You can display the settings screen from the monitoring area on the Home screen or on the Menu
screen.

8-2-1. Opening the settings screen from the Home screen
Press and hold the monitoring area to show the settings screen for those settings related to eachmeasurement method.

Monitoring area

Measure Settings screen(with Doppler area pressed)

8-2-2. Display the Settings Screen from the Menu Screen
Touch(Menu) on the Bottom button, then touch [Measure Settings], [Select Sensor], [Display
Items], [Device Settings], or [Admin Settings] on the Menu screen to display the settings screen. You
can display the settings screen for all items.

MeasureSettings

Display Items
Admin Settings

Select Sensor
Device Settings

132 Actocardiograph MT-830 Operation Manual

Settings screen(when Measure Settings selected)

8 Various Settings

8-3. Settings Related to Measurement
8-3-1. Measure Settings
You can make settings for each Measurement method. You can configure six items, “Common”,“F.HR / FM", “UC”, “M.ECG”, “NIBP” and “SpO2”.

8-3-1-1. Common
Touch(Menu) - [Measure Settings] on the Bottom button to display the Common settings
screen for Measure Settings.

Settings Item

Function

Select Heartbeat sound

Set which HR or synchronous sound should be output
from the speaker.
With this setting, only the current status is changed but
the setting is not saved. Sensors connected
subsequently are selected automatically.

Default
Value－

Actocardiograph MT-830 Operation Manual 133

8-3-1-2. F.HR / FM
Press and hold the Doppler area to display the F.HR / FM settings screen (when the Dopplertransducer is connected).

• Alternatively, touch [Measure Settings] - [F.HR / FM] on the Menu screen to display the F.HR / FMsettings screen.

• Touchor slideto specify a value.

Settings Item

Function

Default
Value

Dop Focus Range

Set the range of depth monitored by ultrasound.

Single Heart Mode

Set to perform a wide range of monitoring using two
Doppler transducers for one fetus.

Off

Threshold of FM dots

Set the threshold for recording FM dots.

25

134 Actocardiograph MT-830 Operation Manual

Shallow8 Various Settings● Single Heart Mode setting
Important• In order to use the Single Heart Mode setting, you must connect the optional Dopplertransducer (refer to P.18 "3-2 Major Options").

• The Single Heart Mode works only when two Doppler transducers are connected. An ordinary
measurement is made when one or three Doppler transducers are connected.

1. Connect two Doppler transducers.
2. Set Single Heart Mode to “On”.
3. Touch [× Close].
You are returned to the Home screen. [DOP [SH]] is displayed on the F.HR mode field.
Example of displaying and printing Single Heart Mode

You can start printing when a recorder (sold separately) is connected. [FHR1 [SH]] is printed on
the header of the recording paper. During monitoring, the Doppler transducer with the best signal
is automatically selected for recording.

Actocardiograph MT-830 Operation Manual 135

8-3-1-3. UC
Press and hold the External Uterine Contraction (E.UC) monitoring area to display the UC settings
screen.

You can also display the UC settings screen by touching [Measure Settings] - [UC] on the Menu screen.

Settings Item

Function

UC Sensitivity

Set the sensitivity level of UC.

UC Filter

Set the filter function to eliminate the breathing
components.

136 Actocardiograph MT-830 Operation Manual

Default
Value
NormalOn

8 Various Settings

8-3-1-4. M.ECG

MT-832-L / P

Press and hold the MHR monitoring area to display the M.ECG settings screen.

You can also display the M.ECG settings screen by touching [Measure Settings] - [M.ECG] on the Menu
screen.

Settings Item

Function

Default
Value

M.ECG Lead

Switches between induction combination.

Ⅱ LeadPacemaker Pulse

Detects a pacemaker pulse and overwrites a pseudopacemaker pulse over an M.ECG waveform.

OffHigh Cut Filter

Sets a wide-range noise cut filter for the M.ECG.

On

Actocardiograph MT-830 Operation Manual 137

8-3-1-5. NIBP

MT-832-L / P

Press and hold the NIBP monitoring area to display the NIBP settings screen.

• You can also display the NIBP settings screen by touching [Measure Settings] - [NIBP] on the Menu
screen.

• Touchor slideto specify a value.

Settings Item

Function

Default
Value

Wired NIBP Measure Mode

Select a measurement method(Compress/Decompress).

First Pressure

Set whether to determine that BP cannot becalculated automatically during pressurization at thefirst measurement or to fix the BP value.
For “Fix”, set the target pressure value (1-300). Fromthe second measurement onwards, the previous
Systolic BP value＋30mmHg will be set (in incrementsof 1ｍｍHg).

Auto

ContinuousIntervalmeasurement

Set Interval (1-120) for a continuous measurement.
Selection unit: 1/2/2.5/3/4/5/.../120

Every 5 min

End SoundCompress* If the interval is 5 minutes or more, measure every x
minutes (x:5 min., x:10 min...on the device clock).

Set the end sound after the preset interval has
elapsed.

138 Actocardiograph MT-830 Operation ManualHigh8 Various Settings

8-3-1-6. SpO2

MT-832-L / P

Press and hold the SpO2 monitoring area to display the SpO2 settings screen.

You can also display the SpO2 settings screen by touching [Measure Settings] - [SpO2] on the Menu
screen.
Settings Item

Function

SpO2 Average Time

Set to acquire a more accurate SpO2 value that matches
the patient’s status.
• Short: For a status where there is no body movement,

Default
Value
Mediumincluding during sleep.

• Medium: For a status where there is less body
movement.
• Long: For a status where there is frequent body
movement.

Actocardiograph MT-830 Operation Manual 139

8-3-2. Select Sensor
The device automatically detects a connected sensor, but you can specify the sensor you want touse manually.
You can configure six items, “Common”, “DOP", “E.UC”, “M.ECG”, “NIBP” and “SpO2”.

In addition, touch

in “Sensor Status” on the Measure screen to display the Select Sensor screen.

8-3-2-1. Common
Touch(Menu) - [Select Sensor] on the Bottom button to display the Common settings screen
for Select Sensor.

Important
Monitoring does not start even if a sensor is connected when this is set to “Unused”.

Settings Item

Function

Default Value

1DOP

Select whether or not to use the sensor.

Use

2DOP

Select whether or not to use the sensor.

Use

3DOP

Select whether or not to use the sensor.

Use

E.UC

Select whether or not to use the sensor.

Use

M.ECG

Select whether or not to use the sensor.

Use

NIBP

Select whether or not to use the sensor.

Use

SpO2

Select whether or not to use the sensor.

Use

140 Actocardiograph MT-830 Operation Manual

8 Various Settings

8-3-2-2. DOP
Touch(Menu) - [Select Sensor] - [DOP] on the Bottom button to display the DOP settings
screen for Select Sensor.

Settings Item
Sensorconnection status

Function
Displays the status of the sensor currently connected.

Default
Value－

8-3-2-3. E.UC
Touch
(Menu) - [Select Sensor] - [E.UC] on the Bottom button to display the E.UC settings
screen for Select Sensor.

Settings Item
Sensorconnection status

Function
Displays the status of the sensor currently connected.

Default
Value－

Actocardiograph MT-830 Operation Manual 141

8-3-2-4. M.ECG/NIBP/SpO2

MT-832-L / P

Touch(Menu) - [Select Sensor] - [M.ECG]/[NIBP]/[SpO2] on the Bottom button to display theconnection status for Select Sensor.

M.ECG

NIBP

SpO2

.
Settings Item
Sensorconnection status

Function
Displays the status of the sensor currently connected.

142 Actocardiograph MT-830 Operation Manual

Default Value－8 Various Settings

8-3-3. Display Items

MT-832-L / P

Set the original waveform to display on the Home screen.
Touch(Menu) - [Display Items] on the Bottom button to display the Display Items settings
screen.

The original waveform is displayed only for “15min waveform”.

Settings Item

Function

Default
Value

M.ECG

Sets to show or hide the item.

On

Sensitivity

Sets the sensitivity to Auto or scale factor (×1/4, ×1/2, ×1, ×2,
×4).

Auto

PULSEWAVE

Sets to show or hide the item.

On

Actocardiograph MT-830 Operation Manual 143

8-4. Device Settings Which Can be Changed by the User
8-4-1. Clock
Make Date and Clock Sync settings.
Touch(Menu) - [Device Settings] on the Bottom button to display the Clock settings screen.

Important
The device does not support automatic time shift due to daylight-savings time. You need to adjust theclock manually when the time changes due to daylight-savings time.

For adjusting the clock, refer to P.49 “(3) Correct the time (or date)“.

Settings Item

Function

Default
Value

Date

If Clock Sync is set to “Manual”, touch to display the Change
date pad. Set a year (western calendar), month, day, and time(in 24-hour format).

－

Clock Sync

When set to [Manual] the date and time can be manuallyentered from the LCD screen of the device.
When set to [Auto], time will be synchronized automaticallywith our Central monitor.

Auto

144 Actocardiograph MT-830 Operation Manual

8 Various Settings

8-4-2. Installation
Make settings for the device ID, ward ID, and bed ID.
Touch(Menu) - [Device Settings] - [Installation] on the Bottom button to display the
Installation settings screen.

You can allow or deny changes in Device Settings, except for “Facility ID”, from the Admin Settings(refer to P.169 "8-5-10 Installation").

Settings Item

Function

Default
Value

Facility ID

Displays the facility ID (cannot be changed).

－

Ward ID

Displays the ward ID.

－

Bed ID (Wired)Displays the registered ID (in three digits)
respectively.
To change the ID, touch to show the bed ID entry
pad (see below), enter a number, and then touch
[OK].

－

Displays the ID of the device.

－

Bed ID(Wireless/in -hospital)
Bed ID(Wireless/out-of -hospital)
Monitor ID－－

Actocardiograph MT-830 Operation Manual 145

■Bed ID entry pad

8-4-3. Other
Make settings for Screen brightness and Key Sound for Normal mode and Night Mode.
Touch(Menu) - [Device Settings] - [Other] on the Bottom button to display the Other settings
screen.

Touchor slideto specify a value.

Settings Item
NormalNight
ModeFunction

Default
Value

Screenbrightness

Set the brightness of the LCD screen (1-100) in
Normal mode.

100

Key SoundSet whether or not keys make a sound in Normal
mode.

On

Screenbrightness

Set the brightness of the LCD screen (1-100) in Night
Mode.

20

Key SoundSet whether or not keys make a sound in Night Mode.

Off

146 Actocardiograph MT-830 Operation Manual

8 Various Settings

8-5. Admin Settings Which Can be Changed by the
Administrator
The Admin Settings can be changed only by the administrator.

You can make settings on the presence of a password and change the password from the Admin
Settings (refer to P.170 "8-5-11 System").

8-5-1. Enter a Password
1. Touch [Admin Settings] on the Menu screen.
The password entry pad appears.
2. Enter a 7-digit password and touch [OK].
The password entered is shown as “*”.

If the password is correct, the Admin Settings screen is displayed.

Contact us or our distributor if you forgot your password.

Actocardiograph MT-830 Operation Manual 147

8-5-2. Function
Make settings on the operation mode and functions.
Touch(Menu) - [Admin Settings] on the Bottom button to display the Function settings screen.
Important
Changing the settings is not available during monitoring.

Settings Item

Function

Default Value

Operation Mode

Switch between Simple and Expert. Available functions varydepending on the mode being used. For details, refer to “■Differences in Simple mode and Expert mode” below.

ExpertInternal
Examination

Set the Internal Exam. function to On or Off.

On

Event

Set the Input Event function to On or Off.

On

NST Mode

Set the NST Mode to On or Off.

On

Maternal
monitoring Mode

Set the Maternal monitoring Mode to On or Off.

On

Apgar Score

Set the Apgar Score function to On or Off.

On

Suspension/restartof measurement

Set the Suspension/restart of measurement function to On or
Off.

On

Preset

Set the Preset function to On or Off.

On

RecorderSet the Recorder function to On or Off.

On

148 Actocardiograph MT-830 Operation Manual

8 Various Settings■ Differences in Simple mode and Expert mode
Settings Item

Expert mode

Simple mode

Select Sensor-Common

Settings available

All sensors are set to [Use] andcannot be changed. The settings
screen is also hidden.
All set to Off

Admin Settings-Function* Only the default value
is different
Admin SettingsMeasurementOperation-Power-on

All set to On

・Menu display: Prepare・Start Auto measurement: Off・Menu display: None
・Start Auto measurement:
Immediately

Admin Settings-SensorDOP assignment setting“Auto” or “Fix” selection
available

Set to [Fix] and cannot bechanged.

* Only the default value isdifferent* Competing settings are stored for each mode, and the settings are retained after switching the mode.
* The default values in Expert mode are described for each setting item in this document.

Actocardiograph MT-830 Operation Manual 149

8-5-3. Measurement
Make measurement settings.
Touch(Menu) - [Admin Settings] - [Measurement] on the Bottom button to display the
Measure Settings screen.
You can configure six items, “Power-on/off”, “Measure Mode", “Info display”, “Waveform”, “Preset”
and “Other”.

8-5-3-1. Power-on/off

Settings Item
Power-on

Function

Default
Value

Show screen

Set the screen display when the power is turned
ON.

PrepareStartmeasurement
automatically

Set the timing when automatic measurement will
start.

Off

Measure Mode

Set the Measure Mode when the power is turnedON.

Delivery

Important
If Start automatically is set to [Off] when the power is turned ON, you need to perform the Start
operations to store the CTG data and send data to the Central monitor after the power is turned ON.

150 Actocardiograph MT-830 Operation Manual

8 Various Settings

8-5-3-2. Measure Mode
You can switch the Measure Mode between the “NST”, “Delivery”, and “Maternal” tabs to makerespective settings.

Settings Item

Default Value

Function

NST

DeliveryMaternal

Confirmation
message

Set Confirmation message when a modeis selected.

On

On

On

Waveform size

Set the waveform size
(10min/15min/40min/FULL
SIZE/Number).

10min

15min

15min

Measurement
time

Set whether or not to specify themeasurement time.
When “Specified” is selected touchor slideto specify time.

Specified Unspecified Unspecified
20min

Measurement at
elapsed time

Set whether or not to continue themeasurement at elapsed time ofmonitoring.

Continue

Continue

Continue

End SoundSet the sound emitted at the end ofmonitoring.

High

High

High

NIBP
measurement

Set whether or not NIBP is measured in
Manual or Auto mode.

ManualManual

Auto

Print

Set whether or not to print.

Yes

Yes

No

Actocardiograph MT-830 Operation Manual 151

8-5-3-3. Info display

Settings Item

Function

Default
Value

UC information

Set information to display in the UC monitoring area.

SI Display

Set whether or not to display an SI value in the BP monitoring
area.

On

PI Display

Set whether or not to display a PI value in the SpO2
monitoring area.

On

Internal
Examination

Set how to display internal examination registration
information in the waveform area.

Details

Event

Set how to display event registration information in the
waveform area.

Details

Sensor connection
statusSet whether or not to display sensor
connection/disconnection information in the waveform area.

On

FM Spike

Set whether or not to display FM spike waveforms.

On

Dot of FM

Set whether or not to display a dot for FM.

On

152 Actocardiograph MT-830 Operation Manual

Cycle/INT.

8 Various Settings

8-5-3-4. Waveform

Settings Item

Function

Default
Value

Sweep speed (mm/min)

Set the speed of display and printing.

30mm/min

FHR2 Waveform Offset

Set the offset value of FHR2 waveforms on the LCD
screen.

0

FHR3 Waveform Offset

Set the offset value of FHR3 waveforms on the LCD
screen.

0M.PR display

Set whether to use Number or Waveform to display themonitoring results in the waveform area.

Waveform

SpO2 display

Set whether to use Number or Waveform to display themonitoring results in the waveform area.

NumberPrevents the HR waveform from being concatenatedcontinuously when differences between two continuous
fetal heart rates exceed the set value.
For “On”, set the HR difference (20/25/30/35).

On
25* Number is used for display when MHR is shown as a
waveform even if “Waveform” is selected.

Noise cut
(FHR/MHR)

Actocardiograph MT-830 Operation Manual 153

8-5-3-5. Preset
Set presets that can be selected on the Prepare screen.

Settings Item

Function

Preset list

Displays the registered presets.
Details for the selected presets (in green) are shown in theright pane.
Unselected items will disappear in the Preset List on the
Prepare screen.
Select a preset and touch
to change the order of thepreset in the list.

New from thecurrent settings

Creates a new preset. Three items, “Alarm Settings”, “NIBP
measurement settings (Interval and End Sound), and “Sensor
to use” will be used to create a preset out of the current
settings.
You can register up to 10 presets.

DeleteDeletes selected presets.

154 Actocardiograph MT-830 Operation Manual

DefaultValue

8 Various Settings■ Create a new preset
1. Touch [New from the current settings]
The Create New screen is displayed.
2. Touch a preset name.

The Preset name entry screen and the keypad appear.

3. Enter a preset name and touch [�] (Enter) key.
The Create New screen is displayed.
4. Touch [Create New].
The created preset will be added to the Preset list.

8-5-3-6. Other

Settings Item

Function

Default
Value

Pressure Unit

Set the pressure unit.

mmHg

Temperature unit

Set the temperature unit.

°C

Priority of MHR, MPR

Set which monitoring results should be selected when the
M.ECG sensor and the SpO2 sensor are connected at thesame time.

MHR

Actocardiograph MT-830 Operation Manual 155

8-5-4. Clinical Set
Make settings for the Clinical Set function.
Touch(Menu) - [Admin Settings] - [Clinical Set] on the Bottom button to display the ClinicalSet settings screen.
You can configure two items, “Event” and “Apgar Timer”.

8-5-4-1. Event

Settings Item

Function

Category/Event/Comment Displays events that can be used for event entry by Category,
Event, and Comment. If these are not selected, they will not
be displayed when you enter an event.
Undo

Returns to the previous state before you made a change.

Initialize

Returns to the initial values.

156 Actocardiograph MT-830 Operation Manual

DefaultValue

8 Various Settings

8-5-4-2. Apgar TimerTouchor slide

Settings Itemto specify a value.

Function

Default
Value

Timer1

Set the time for Apgar Timer 1 (1 to 15min).

1min

Timer2

Set whether or not to use Apgar Timer 2.
If “Use” is selected, set the time (1-15min).

Use
5min

Timer3Set whether or not to use Apgar Timer 3.
If “Use” is selected, set the time (1-15min).

Use
10min

Timer volume

Set the volume for the Apgar Timer.

High

Actocardiograph MT-830 Operation Manual 157

8-5-5. Operation / display
Make settings for items and buttons you want to display on the screen.
Touch(Menu) - [Admin Settings] - [Operation / display] on the Bottom button to display the
Operation / display settings screen.
You can configure four items, “Menu”, “Bottom button”, “Color”, and “Other”.

8-5-5-1. Menu

Default
Value

Settings Item

Function

Menu/Side window
On/Off setting

Set items you want to display on the Menu or Side window. If
these are not selected, they will not be displayed.

－

Undo

Returns to the previous state before you made a change.

－

Initialize

Returns to the initial values.

－

158 Actocardiograph MT-830 Operation Manual

8 Various Settings

8-5-5-2. Bottom Button

MeasureMode to set

Buttons
to locate

Settings Item

Function

Default
Value

Measure Mode toset

Use the “NST”/“Delivery”/“Maternal” tabs to selectmeasurement modes to configure the Bottom buttons, andthen select which mode will be assigned to which Bottom
button.

－Buttons to locate

Select buttons you want to locate from the buttons on the“Menu”/“Side window”/“Other” tab.
You can configure buttons that perform specific events fromthe “Other” tab.

－

Undo

Returns to the previous state before you made a change.

－

Initialize

Returns to the initial values.

－

Actocardiograph MT-830 Operation Manual 159

8-5-5-3. Colors

Settings Item

Function

Default ValueFHR1/FHR2/FHR3/UC/MH
R/NIBP/SpO2

Set the color of each monitoring value (including
the color of numbers, the color of waveform
lines, etc.)
To change, touch [Edit] to display a candidate
color, select the color and thickness of the line,
and then touch [OK].

FHR1:2FHR2:9
FHR3:16
UC:11
MHR:10
NIBP:3
SpO2:14

8-5-5-4. Other

Settings Item
Display of patient
information

Function
Set whether to display the patient information on the
Home screen or the top sheet when printing.

160 Actocardiograph MT-830 Operation Manual

DefaultValueOn8 Various Settings

8-5-6. Network
Make network and server settings.
Touch(Menu) - [Admin Settings] - [Network] on the Bottom button to display the Network
settings screen.
You can configure three items, “Fetal monitor”, “Wireless LAN”, and “Server”.

8-5-6-1. Fetal monitor

To enter characters or numbers, touch the field to show the entry pad, enter a number and then touch[OK].

Settings Item

Function

Default
Value

Monitor (Wired)

For a wired network connection of the device,configure the IP Address (Auto/Manual), Subnet Mask,
Gateway, DNS Server, and MAC Address.

ManualMonitor (Wireless/in-hospital)

For a wireless (in-hospital use) network connection of
the device, configure the IP Address (Auto/Manual),
Subnet Mask, Gateway, DNS Server, and MAC
Address.

ManualMonitor (Wireless/out-of-hospital)

When the device is used outside the hospital, the IP
address assigned by the connected smartphone isdisplayed.

Fixed toauto

Actocardiograph MT-830 Operation Manual 161

8-5-6-2. Wireless LAN

MT-831-S / MT-832-P

Configure the in-hospital and out-of-hospital wireless LAN connection.

To enter characters or numbers, touch the field to show the entry pad, enter a number, and then touch[OK].
In addition, touch the Enter Key to close the entry pad.

• Use
• Use

to delete the last entered character.
to confirm the position you want to enter a character.
Enter Key

Settings Item

Function

Default
Value
－

SSID

Set the SSID of the wireless LAN access point to beconnected to or the smartphone to be tethered.

Security

Set the security (WPA-Personal/WPA2-Personal/WPAEnterprise/WPA2-Enterprise) of the wireless LAN accesspoint to be connected to or the smartphone to be tethered.

WPA2Personal

Password

Set the password if the security is "WPA-Personal"/"WPA2Personal".

－

EAP

If the security is set to "WPA-Enterprise"/"WPA2-Enterprise",
the selected authentication method is displayed.

－

162 Actocardiograph MT-830 Operation Manual

8 Various Settings

Important• The password for the wireless LAN access point to be connected to must be 8 to 64 characters long.
• When connecting to a wireless LAN access point with "WPA-Enterprise"/"WPA2-Enterprise, a
separate configuration is required. Please contact TOITU distributor.

• When connecting using "WPA-Enterprise"/"WPA2-Enterprise", the connection will no longer bepossible if the certificate expires.

8-5-6-3.Server

To enter characters or numbers, touch the field to show the entry pad, enter a number, and thentouch [OK].
Settings Item

Function

Default
Value

Central monitor (in-hospital)

Set whether or not to use the in-hospital Central
monitor. To connect with the in-hospital Central
monitor, configure the IP Address and Port.

－

Central monitor (out-ofhospital)

To connect with the Central monitor (MF-7700 only)
out-of-hospital, configure the Port.

－

Test wired connection

Execute a wired connection test after configuration.

－

Test wireless connection

Execute a wireless connection test after
configuration.

－

Actocardiograph MT-830 Operation Manual 163

8-5-7. Sensor
Make settings for the sensors you want to use.
Touch
(Menu) - [Admin Settings] - [Sensor] on the Bottom button to display the Sensor
settings screen.
You can configure two items, “Common” and “DOP".

8-5-7-1. Common

ImportantItems that are set to “Off” are not displayed on the Measure Settings screen or User Device Settings
screen. Setting sensors which are not in use to “Off” helps when using the device as unnecessary
settings are not displayed.

Settings Item

Function

Default
Value

2DOP

Set the 2DOP sensor to On or Off.

On

3DOP

Set the 3DOP sensor to On or Off.

On

M.ECG

Set the M.ECG sensor to On or Off.

On

NIBP

Set the NIBP sensor to On or Off.

On

SpO2

Set the SpO2 sensor to On or Off.

On

164 Actocardiograph MT-830 Operation Manual

8 Various Settings

8-5-7-2. DOP

Settings Item

Function

DOP No Assignment

Set the DOP No. assignment to Auto or Fix.
• “Auto”: The number is assigned in the order DOPs are

Default
Value
Fixconnected.

• “Fix”: The Y-shaped Doppler/External UC transducer isassigned from 1DOP while the Doppler transducer isassigned from 2DOP in the order they are connected.

Actocardiograph MT-830 Operation Manual 165

8-5-8. Alarm
Make settings on the volume and suspended time of an alarm.
Touch(Menu) - [Admin Settings] - [Alarm] on the Bottom button to display the Alarm settings
screen.

Settings Item

Function

Default
Value

B.Alarm Volume

Set the volume of a biological alarm.

MediumM.Alarm Volume

Set the volume of a device alarm.

MediumAlarm Restraint

Set whether or not to restrain the alarm when the
power is turned ON.

Off

Alarm suspend Time

Set the time until the alarm will be released
automatically when alarm suspension is active.

5min

SpO2 Alarm suspend Time

Set the time until the alarm will be released
automatically when SpO2 alarm suspension is
active.

2min• The value in “M.Alarm Volume” cannot be larger than the value in “B.Alarm Volume”.
• Contact us or our distributor when you want to set the alarm volume to [Mute].

166 Actocardiograph MT-830 Operation Manual

8 Various Settings

8-5-9. Print
Make print settings when a recorder (sold separately) is connected.
Touch(Menu) - [Admin Settings] - [Print] on the Bottom button to display the Print settings
screen. This is enabled only when a recorder is connected.
You can configure two items, “Print1” and “Print2".

8-5-9-1. Print1

Settings Item

Function

Default
Value

Top Sheet

Set whether or not to print the top sheet.

On

Auto Feed

Set whether or not to feed the recording paper to its
fold line at the end of printing.

On

Printing during
measurement suspension

Set whether or not to print during measurement
suspension.

Off

Automatic printing of themother vital list at the end ofprint

Set whether or not to print a mother vitals list at theend of CTG print.

Off

Linked with power on/off

Set whether or not to power ON/OFF the recorderwhen the device is powered ON/OFF.

On

FHR2 Waveform Offset

Set the offset of a FHR2 waveform print position.

0

FHR3 Waveform Offset

Set the offset of a FHR3 waveform print position.

0

Internal Examination

Set how to print internal examinations.
When "Icon" is selected, only icons are printed;
when "Details" is selected, descriptions of diagnosis
and diagnosis times are printed.

Details

Event

Set how to print an event.
When "Icon" is selected, only icons are printed;
when "Details" is selected, the icon, event name,and registration time are printed.

Details*Cannot be changed during measurement suspension.

Actocardiograph MT-830 Operation Manual 167

8-5-9-2. Print2

Function

DefaultValue

Set the line thickness of each waveform on the Home screen.
・FHR1
・FHR2
・FHR3
・UC
・MHR
・SpO2
*Cannot be changed while printing.

2dot
2dot
2dot
2dot
1dot
1dot

Settings Item
Waveform line

168 Actocardiograph MT-830 Operation Manual

8 Various Settings

8-5-10. Installation
Make settings for the device ID, ward ID, and bed ID.
Touch(Menu) - [Admin Settings] - [Installation] on the Bottom button to display the Installation
settings screen.

Settings Item

Function

Default
Value

Facility ID

Displays the facility ID (cannot be changed).

－

Ward ID
User changes

Set the ward ID (in 3 digits). To change the ID,
touch to show the ward ID entry pad, enter anumber, and then touch [OK].
Set whether or not to allow the user to change
the ID.

－
Prohibit

Bed ID (Wired)
Bed ID (Wireless/in-hospital)
Bed ID (Wireless/out-of-hospital)
User changes

Set the wired, wireless (in-hospital), andwireless (out-of-hospital) bed IDs (in 3 digits).
To change the ID, touch to show the bed ID
entry pad, enter a number, and then touch[OK].
Set whether or not to allow the user to change
the ID.

－－－
PermitMonitor ID
User changes

Set the device ID (number-alphabet＋number).
To change the ID, touch to show the Monitor ID
entry pad, enter a number, and then touch[OK].
Set whether or not to allow the user to change
the ID.

－
Prohibit

Actocardiograph MT-830 Operation Manual 169

8-5-11. System
Make system settings including the admin password.
Touch(Menu) - [Admin Settings] - [System] on the Bottom button to display the Systemsettings screen.

Settings Item

Function

Default
Value

Admin Setup Password

Set whether or not (Available or Not available)
to use an admin password. You can alsochange the password.
When set to “Available”, you need to enter the
password to access Admin Settings.
To change the password, touch [Edit] to show
the password change pad, enter the current
password and a new password (twice), andthen touch [OK].

Notavailable

Setting list

Prints (when a recorder is connected) thesettings list. Touch [Yes] on the confirmation
screen.

－Return all settings to the installed Returns all settings to their default values at thestatetime of installation. Touch [Yes] on theconfirmation screen.
Pressing "Execute" restarts automatically.

170 Actocardiograph MT-830 Operation Manual－

8 Various Settings

8-5-12. Device info
Displays the Model number of the device and each device.
Touch(Menu) - [Admin Settings] - [Device info] on the Bottom button to display the Device
info screen.
You can configure two items, “Fetal monitor” and “Recorder”.

8-5-12-1. Fetal monitor

Settings Item

Function

Default
Value

Model number

Displays the Model number of the device.

－

Serial number

Displays the Serial number of the device.

－

MAC Address

Displays the MAC address of the device.

－

Battery model
number

Displays the Model number of the built-in battery.

－

Battery SN

Displays the Serial number of the built-in battery.

－

Battery voltage

Displays the voltage of the built-in battery.

－

Clock battery
voltage

Displays the voltage of the clock battery for the device.

－

Actocardiograph MT-830 Operation Manual 171

8-5-12-2. Recorder

Settings Item

Function

Default
Value

Model number

Displays the Model number of the recorder.

－

Battery model
number

Displays the Model number of the built-in battery.

－

Battery SN

Displays the Serial number of the built-in battery.

－

Battery voltage

Displays the voltage of the built-in battery.

－

172 Actocardiograph MT-830 Operation Manual

9 Maintenance and Inspection

9.

Maintenance and Inspection

9-1. Cleaning and Sterilization
Sterilize all equipment that touches the surface of the skin before every use.
Failure to follow this instruction may cause infection.

The device is not sterilized before shipment. Be sure to sterilize and clean before use.
For safety reasons, remove the power cord before wiping.
Do not clean with chemicals such as sodium hypochlorite, alcohol that uses a larger
amount than specified by us (ethanol, methanol, isopropyl alcohol), and do not use
chemicals such as thinner, benzine, peracetic acid formulation (Acecide), sodiumhydroxide, volatile solvents, or cleanser.
Failure to follow these instructions may degrade the material.
Do not use chemicals other than those specified by us for disinfection or sterilization.
Do not excessively wipe the head of the transducer.
Failure to follow this instruction may damage the sensor or remove the surface coating
preventing smooth movement on the abdominal wall, resulting in redness on the skin.
Do not use water to clean, wipe, or disinfect the power plug.
Failure to follow this instruction may result in corrosion.
Do not apply or spray disinfectant on to the electrical parts.
Some disinfectants are conductive. Residual liquid may become more conductive byabsorbing dust or dirt.
Refer to P.178 "9-2-2 Inspection Checklist" for inspections after cleaning.
Do not use the following methods of disinfection or sterilization.
• Disinfection or sterilization at more than 70°C, such as autoclave• Sterilization by EOG (ethylene oxide gas) or ultraviolet light
Although the Doppler transducer and the External UC transducer are IPX7
waterproof, their waterproof performance may decrease if they are immersed into
chemicals. Immerse only the applying surface into disinfectants.
Periodically clean the device to keep it clean.
Failure to follow this instruction may spread bacteria that can cause a rash.
Follow the instructions in this document to use the cleaning agent.
Refrain from cleaning while the patient is being monitored.

Actocardiograph MT-830 Operation Manual 173

9-1-1. Cleaning and Sterilization of Doppler/External UC Transducers
To prevent infection, periodically clean and sterilize the application surface that touches the surfaceof the patient’s skin.

■ Cleaning
Before sterilization, wipe away the ultrasound gel or contamination from the Doppler transducer
carefully with tissues or a soft cloth.

■ Sterilization
The following disinfectant is available: Bacterial sensitivity differs depending on the chemicals
being used. Follow the instructions in the documents supplied with each chemical such as theindications, usage, and precautions.

• Immersed in Benzalconium Chloride (Osvan) 0.1% solution for 10 minutes• Wiping with a cloth immersed in disinfectant isopropanol 80 vol% or less
• Wiping with a cloth immersed in disinfectant ethanol 76.9 to 81.4 vol% or less
• Immersed in Glutaral (STERIHYDE L) 2W/V ％ solution for 30 minutes• Immersed in Amphoteric surfactant (TEGO 51) 0.05 to 0.2％ solution for 10 to 15 minutes
Important• Immerse only the applying surface into disinfectants.
• Do not immerse the connectors and cables.
• Do not scratch with a brush.
• Be sure to use the correct concentration of disinfectant. For details, refer to the instructions
supplied with the disinfectant.

• Clean and sterilize according to "9-1-2 Cleaning and Sterilizing the Main Unit and AC Adapter"for sterilization of areas other the patient's application surface.

9-1-2. Cleaning and Sterilizing the Main Unit and AC Adapter
To prevent infection, periodically clean and sterilize the main unit and AC Adapter.

■ Cleaning
Wipe the device and AC Adapter with a soft cloth on a regular basis.
Clean tough stains in the following manner.

1. Soak a soft cloth in a neutral detergent diluted with lukewarm water (or water).
Wring out the cloth before wiping so that the water does not drip.
2. Wipe the device with the damp cloth.
3. Finally, wipe with a soft dry cloth.

■ Sterilizing
The following disinfectant is available: Bacterial sensitivity differs depending on the chemicals
being used. Follow the instructions in the documents supplied with each chemical such as theindications, usage, and precautions.

• Wiping with a Super Sani-Cloth wet wipe (isopropanol 55% Class 4, ammonium salt 0.5%)• Wiping with a cloth immersed in disinfectant isopropanol 80 vol% or less
• Wiping with a cloth immersed in disinfectant ethanol 76.9 to 81.4 vol% or less
174 Actocardiograph MT-830 Operation Manual

9 Maintenance and Inspection

Important• Do not allow liquid to enter the casing of the main unit.
• Do not immerse the main unit. Protect the main unit from water drops or splashes.
• Be sure to use the correct concentration or disinfectant. For details, refer to the instructions
supplied with the disinfectant.

9-1-3. Cleaning and Sterilizing the NIBP Cuff and Air Hose

MT-832-L / P

To prevent infection, periodically clean and sterilize the cuff.

■ Cleaning
Use an unmoistened dry cloth to wipe it off to clean.

■ Sterilizing
Lightly wipe the cuff with a gauze containing disinfectant or a cloth immersed in designateddisinfectant, and remove moisture with a dry cloth.
The following disinfectant is available:• Ethanol for disinfection• Isopropanol 70 %• Chlorhexidine gluconate solution 0.5 %• Benzalkonium chloride solution 0.05 %Important• Do not wet the connectors and the connection of the cuff connector.
• Do not knead the cuff or scratch it with a brush.
• Be sure to use the correct concentration or disinfectant. For details, refer to the instructions
supplied with the disinfectant.

9-1-4. Cleaning and Sterilizing the Remote Marker Switch, M.ECG
Adapter Cable, Clip Electrode Lead, and Ultrasound Gel Bottle
Periodically clean and sterilize the application surface that touches the surface of the patient’s skin.

■ Cleaning
Before sterilizing, wipe off adhered ultrasound gel or contamination carefully with tissues or a soft
cloth. Clean tough stains in the following manner:

1． Soak a soft cloth in a neutral detergent diluted with lukewarm water (or water).
Wring out the cloth before wiping so that the water does not drip.
2． Wipe the device with the damp cloth.
3． Finally, wipe with a soft dry cloth.

Actocardiograph MT-830 Operation Manual 175

■ Sterilizing
The following disinfectant is available: Bacterial sensitivity differs depending on the chemicals
being used. Follow the instructions in the documents supplied with each chemical such as theindications, usage, and precautions.

• Wiping with a Super Sani-Cloth wet wipe (isopropanol 55% Class 4, ammonium salt 0.5%)• Wiping with a cloth immersed in disinfectant isopropanol 80 vol% or less
• Wiping with a cloth immersed in disinfectant ethanol 76.9 to 81.4 vol% or less9-1-5. Cleaning and Sterilizing the Transducer belt
To prevent infection, use a Transducer belt.

■ Cleaning
Wash the product clean according to the instructions on the package.

■ Sterilizing
We do not recommend sterilizing the product.

9-1-6. Cleaning and Sterilizing Other Optional Items
Follow the manual supplied with the respective product.

176 Actocardiograph MT-830 Operation Manual

9 Maintenance and Inspection

9-2. Inspections to be Conducted by Users

Do not perform maintenance in situations where the patient is present.
Failure to follow this instruction may cause electric shock.

9-2-1. About inspections
Inspections are required to keep this device in optimum condition. Some inspections should be
performed by the user and some inspections should be performed by our service personnel. The
hospital or clinic is responsible for these inspections.
Users should conduct the following inspections.
Inspection

Refer toInspections before Use Be sure to conduct before every use.

P.178

Inspection after use

Be sure to conduct after every use.

P.178

Six-month inspection

Conduct a functional inspection every six months.

P.179

Annual inspection

Conduct an inspection every year.

P.180

If you cannot confirm the proper action during the inspection, the device has failed.
Turn off the power, unplug the power cord, and attach a label stating “Failure”, and contact us or our
distributor to request repairs.

Actocardiograph MT-830 Operation Manual 177

9-2-2. Inspection Checklist
Perform the inspection using the checklist below. You can make copies of the checklist for yourconvenience.

■ Inspection before use
Inspect the device before use.
Body No.

Date of inspection YYMMDD

No.

Inspected by

Details of inspection

Results

1

The main unit is correctly installed without the risk of a falling hazard.

Y/N2

No damage or deformation found on the main unit and power cords.

Y/N

3

No defective areas on the LCD screen.

Y/N

4

Battery level is sufficient.

Y/N

5

The date and time are correct.

Y/N

6

The volume is appropriate.

Y/N

7

The Doppler transducer is operating correctly and the Doppler sound can beheard.

Y/N

8

The display of contraction level changes by pressing the pressure sensitive partof the External UC transducer.

Y/N

9

A device alarm "Check Electrode" is issued when the M.ECG adapter cable isconnected.

Y/N

10

[When using the recorder] The error indicator of the recorder is not flashing.

Y/N

11

[When using the recorder] The paper indicator of the recorder is not flashing.

Y/N■ Inspection after use
Turn off the power before inspection.
Body No.
No.

Date of inspection YYMMDD

Inspected by

Details of inspection

Results

1

Accessories that touch the surface of the skin are sterilized.

Y/N

2

No damage or deformation found on the main unit, the transducers, or thepatient's cables, etc.

Y/N

3

No dirt or foreign matter found on the main unit, the transducers, or the patient's
cables, etc.

Y/N

178 Actocardiograph MT-830 Operation Manual

9 Maintenance and Inspection■ Six-month inspection
Connect the transducers to the device before inspection.
Body No.

Date of inspection YYMMDD

No.

Inspected by

Details of inspection

Results1

No loose or missing screws in the body and the stand.

Y/N2

No damage or deformation found on the main unit and power cords.

Y/N

3

The touch panel can be operated.

Y/N

4

No missing accessories.

Y/N

5

No defective areas on the LCD screen.

Y/N

6

The date and time are correct.

Y/N

7

The volume is appropriate.

Y/N

8

The Doppler transducer is operating correctly and the Doppler sound can beheard.

Y/N

9

The display of contraction level changes by pressing the pressure sensitive partof the External UC transducer.

Y/N

10

A device alarm "Check Electrode" is issued when the M.ECG adapter cable isconnected.

Y/N

11

The remote marker switch operates correctly.

Y/N

12

The fetal heart rate alarm can be correctly activated.

Y/N

13

The pulse rate alarm can be correctly activated.

Y/N

14

The NIBP alarm can be correctly activated.

Y/N

15

The SpO2 alarm can be correctly activated.

Y/N

Actocardiograph MT-830 Operation Manual 179

■ Periodic inspection
Conduct the six-month inspection at the same time.
Body No.

Date of inspection YYMMDD

Inspected by

No.

Details of inspection

Results1

No abnormalities found in the six-month inspection.

Y/N

2[When using the recorder]
No abnormalities in the recorder. No dirt on the thermal head.

Y/N

3

Check for air leaks from the BP gauge.

Y/N

4

Check for pressure accuracy of the BP gauge.

Y/N

5

Check for operation and accuracy of the pulse oximeter.

Y/N

6

Check for operation and accuracy of the M.ECG diagram.

Y/N

180 Actocardiograph MT-830 Operation Manual

9 Maintenance and Inspection

9-2-3. Inspecting the fetal heart rate alarm
1. Press thetransducer.

(Power) button to turn on the device, and connect the Doppler

2. Set Alarm Restraint to [OFF], set the Lower limit of heart rate to "120", and set
the Delay time to "10sec" in the Alarm Settings so that the fetal heart rate alarm
can be triggered easily.
For the alarm restraint setting, refer to P.166 "8-5-8 Alarm".
For settings for the Lower limit of heart rate and Delay time, refer to P.123 "7-3-2 F.HR".
3. Touch [Measure] on the Bottom button or Menu screen to start monitoring.
4. Turn the transmitting and receiving surface up to prevent signal input (“---" isdisplayed on the screen).
5. Confirm that the alarm is issued after the set delay time.
6. Restore the settings after confirming the alarm.

9-2-4. Inspecting the Maternal Heart Rate / Maternal Pulse Rate Alarm
MT-832-L / P

1. Press the(Power) button to turn on the device, and apply the M.ECG
electrode to the chest (apply the SpO2 sensor to a finger for an the Maternal
Pulse Rate alarm).
2. Set Alarm Restraint to [OFF] and set the Lower limit of heart rate to "120" in the
Alarm Settings so that the Maternal Heart Rate / Maternal Pulse Rate alarm canbe triggered easily.
For the alarm restraint setting, refer to P.166 "8-5-8 Alarm".
For the Lower limit of heart setting, refer to P.115 "7-1-3 Maternal Heart Rate / Maternal
Pulse Rate Alarm".
3. Touch [Measure] on the Bottom button or Menu screen to start monitoring.
4. Confirm that the M.HR/M.PR is less than "120" and that the Maternal Heart Rate
/ Maternal Pulse Rate alarm has been triggered.
5. Restore the settings after confirming the alarm.

9-2-5. Inspecting the NIBP Alarm
1. Press the

MT-832-L / P(Power) button to turn on the device, and connect the NIBP cuff.

2. Set SYS Upper Limit to "100mmHg" and SYS Lower Limit to "50mmHg" in the
Alarm Settings so that the NIBP alarm can be triggered easily.
For the settings, refer to P.125 "7-3-4 NIBP".
3. Touch [Measure] on the Bottom button or Menu screen to start monitoring.
4. Wrap the cuff around the arm, and press the NIBP start switch to measure theBP.
Make sure that the alarm is triggered with its sound.
5. Press the(Alarm) button to check that the alarm is suspended.

6. Restore the settings after confirming the alarm.
Actocardiograph MT-830 Operation Manual 181

9-2-6. Inspecting the SpO2 Alarm
1. Press thesensor.

MT-832-L / P(Power) button to turn on the device, and connect the SpO2

2. Set Alarm Restraint to [OFF] and the SpO2 Upper Limit to "90%" in the Alarm
Settings so that the SpO2 alarm can be triggered easily.
For the alarm restraint setting, refer to P.166 "8-5-8 Alarm".
For the SpO2 upper limit setting, refer to P.126 "7-3-5 SpO2".
3. Touch [Measure] on the Bottom button or Menu screen to start monitoring.
4. Apply the SpO2 sensor to a finger to start measuring SpO2.
5. Make sure that the alarm is triggered with its sound.
6. Press the(Alarm) button to check that the alarm is suspended.

7. Restore the settings after confirming the alarm.

9-3. Inspection by Service Personnel
Contact the service personnel of TOITU distributor to request inspection once a year (in general).
The service personnel will check that the electronic parts inside the device are operating correctly byusing various measurement devices. They will visit your site based on the periodic inspection
contract.
Failure to conduct a periodic inspection may degrade the function of the device, delay the detectionof loss, or prevent correct monitoring.
Record the results of these periodic inspections. If you have any questions, contact TOITU or our
distributor.

182 Actocardiograph MT-830 Operation Manual

9 Maintenance and Inspection

9-4. Notes on Storage Precautions
Do not store the device in the following conditions.
Failure to follow this instruction may result in failure.
• A place subject to direct sunlight• A place subject to humidity (95% or above) or dust
• A place subject to extreme heat (60°C or above) or cold (-10°C or below)• A place subject to vibrations or other unstable places

9-4-1. Storage and transport conditions• Ambient temperature:• Relative humidity:• Atmospheric Pressure:-10 to +60°C (excluding freezers)
30 to 95% (no condensation)
700 to 1060 hPa

9-4-2. If the device is not going to be used for a long time
1. Disconnect the power cord from the power outlet.
2. Remove the AC adapter from the main unit.
3. Do not store in a location in which the device could come into contact withwater.
Important• Avoid direct sunlight, high temperatures and humidity, slopes, vibrations, and shocks.
• The battery in the device runs out even if the device is not being used. Charge the battery atleast once a month.

9-4-3. Storing the transducer
Avoid subjecting the transmitting and receiving surface of the Doppler transducer and the pressurereceiving surface of the External UC transducer to shocks.

9-4-4. Storage of the NIBP Cuff and Air Hose

MT-832-L / P

Storing the cuff folded or the air hose tightly bent for a long time may shorten the service life of thoseparts.

Actocardiograph MT-830 Operation Manual 183

10. TroubleshootingThis section describes the procedures for users to address problems. If there is no improvement
after completing the procedures, contact us or our distributor to request repairs since the problem
may be caused by a failure or a bad electrical contact. Also, contact us or our distributor if it isnecessary to replace the battery for the clock or the lithium-ion battery.

10-1. General Problems
Examples of Failure

Possible Causes

ActionIn the free space"Clock Low Battery" isdisplayed

The voltage of the battery for clock
memory is low

Contact us or our distributor to
replace the battery.

In the free space"Check UC Sensor" isdisplayed

The input signal deviates due to asensor abnormality or for otherreasons

Check the External UC transducer.

On the Alert screen"Failed to connect with
Central" is displayed

The LAN cable is not connected
properly

Connect the LAN cable properly.

Out of wireless LAN communication
range

Move to a position within thecommunication range.

Wireless settings are not correct

Make proper communication
settings (refer to P.161 "8-5-6
Network").

The power indicator will
The power cord or the AC adapter is Plug in the power cord or the AC
not turn on even though
unplugged
adapter securely.
the power cord and theAC adapter are connected
No screens are showneven though the power
button has been pressed

The battery has run out

Connect the power cord to the AC
adapter and charge the battery fora while.

The date and time is notcorrect

The time setting is incorrect

Set the date and time again on the
Settings screen (refer to P.49"(3)Correct the time (or date)").

The clock is not correct
The battery for the clock memory
even after setting the time has run out

184 Actocardiograph MT-830 Operation Manual

Contact us or our distributor to
replace the battery.

10 Troubleshooting

Examples of Failure
The alarm tone does not
sound

Possible Causes
The following icon is displayed on
the monitoring area.

Action
Display the Alarm Settings screen
and make sure that the alarms for"F.HR", "M.HR / M.PR", "NIBP",
and "SpO2" are set to "On"respectively.
Otherwise, make sure that theupper or lower limit of each item is
not set to "Off" (refer to P.121 "7-3Alarm Settings").

The following icon is displayed on
the monitoring area.

Display the Alarm settings screen
in [Admin Settings] - [Alarm] andmake sure that the alarm volume is
not set to [Mute] (refer to P.166 "85-8 Alarm").

The key sound does notwork

The key sound is set to [Mute]

Display the Other settings screenin [Device Settings] and set the key
sound to "On" (refer to P.146 "8-43 Other").

The timer tone does not
sound

The timer tone is set to [Mute]

For the measurement end sound,display [Admin Settings] [Measure] - [Measure Mode] andset the end sound for each
Measure Mode to anything otherthan [Mute] (refer to P.151 "8-5-3-2
Measure Mode" - [Measure
Mode]).
For the NIBP measurement end
sound, display [Measure Settings] [NIBP] and set the end sound toanything other than [Mute] (refer toP.138 "8-3-1-5 NIBP").
For the Apgar Timer sound, display
the Apgar Timer screen in [Admin
Settings] - [Clinical Set] - [Apgar
Timer] and set the timer volume toanything other than [Mute] (refer toP.157 "8-5-4-2 Apgar Timer").

Entering Apgar Score isdisabled

Apgar Timer has not started
counting

Register the "F.DEL" event andwait until the Apgar Timer you want
to use starts counting.

No Doppler sound isheard

The volume setting is too low

Adjust the volume.

The Doppler transducer is notconnected to the main unit correctly

Connect the Doppler transducer tothe main unit securely.

Actocardiograph MT-830 Operation Manual 185

Examples of Failure
The Doppler does notwork normally

Possible Causes

Action

The Doppler transducer is notconnected to the main unit correctly
The Doppler transducer is applied at
an inappropriate position

Connect the Doppler transducer tothe main unit securely.
Adjust the Doppler transducer to a
position that provides clear,rhythmic sounds.
Apply the gel evenly so that it
creates a thin layer.

Too small amount of ultrasound gel
was applied to the Dopplertransducer
The fetus has an irregular heartbeat
or hiccups
The Doppler transducer failed
The fetus or mother frequently
moves
The mother is severely obese
No signals
Static noise in the Doppler The fetus frequently moves
Affected by environmental noise

The mother frequently moves
The Doppler transducer failed
is displayed orprintedThe External UC
transducer records nocontraction

Two Doppler transducers may bemonitoring the heart rate of a single
fetus
The same heartbeat may be
detected for fetal heartbeat andmaternal heartbeat
The External UC transducer isinappropriately applied
ZeroSet at an occurrence of UC
The External UC transducer is notconnected to the main unit correctly
The External UC transducer failed
No uterine contraction
The contraction exceeds thereference range

186 Actocardiograph MT-830 Operation Manual

Carefully continue to monitor.
Use another method of monitoring
which does not use this device.
Replace it with another Dopplertransducer.
Use another method of monitoring
which does not use this device.
Use another method of monitoring
which does not use this device.
Auscultate the fetal heartbeat.
Reposition the Doppler transducer.
Keep the sheet and gown awayfrom the Doppler transducer.
Do not hold the Doppler transducer
with your hand.
Try to stop the mother's movement.
Replace it with another Dopplertransducer.
Check the fetal position andreapply the Doppler transducer.

Apply the transducer to the uterine
fundus of the mother.
Touch [ZeroSet] at UC INT.
Connect the External UC
transducer to the main unit
securely.
Replace it with another External
UC transducer.
Wait for a contraction and monitor
for a while.
Loosen the belt.
Remove the External UC
transducer and fix it again making
sure it is not too tight.

10 Troubleshooting

10-2. NIBP Measurement Problems
Examples of Failure
In the free space"NIBP: Check Cuff" isdisplayed

MT-832-L / P

Possible Causes

ActionCould not confirm the cuff pressure
though the pump was activated.

Check if the cuff and the connector
are connected correctly.

Could not pressurize the cuff
properly.

Check the connected cuff and theconnector as there may be airleakage, etc.

Blood pressure/pulse rate could not
be judged correctly.

Check if the cuff is wrappedcorrectly, there is no body
movement, the measurement
posture is appropriate, ask thepatient to stay still in bed, and thenmeasure again.

Too many detected pulses or failed
to detect appropriately

Check if the cuff is wrappedcorrectly, there is no body
movement, the measurement
posture is appropriate, ask thepatient to stay still in bed, and thenmeasure again.

In the free space
Could not measure correctly
Adjust First Pressure on “Measure"NIBP: Leak" is displayed because insufficient pressure for the Settings” and measure again.
blood pressure measurement.
In the free space"NIBP: Artifact" isdisplayed

Could not measure properly due tobody movement

Ask the patient to stay still in bed,
and then measure again.

In the free space"NIBP: Out of Range" isdisplayed

Blood pressure exceeds themeasurement range

It may be caused by a weak pulse
signal, body movement, or an
irregular heartbeat. If the error
persists, use palpation or invasive
blood pressure method to measure
the BP.

In the free space"NIBP: Check Interval" isdisplayed

Measure the BP continuously formore than 30 minutes every minute

Check the patient’s status, anddetermine if you should continue tomeasure.

In the free space"NIBP: Over Cuff
Pressure" is displayed

Pressure exceeded the upper limit
value

Check if the cuff is wrappedcorrectly, there is no body
movement, the measurement
posture is appropriate, ask thepatient to stay still in bed, and thenmeasure again.

Too fast to pressurize the cuff.

Check for a bent air hose andmeasure again.

In the free space"NIBP: Time Over" isdisplayed

BP measurement time exceeded the Read the error indication and takethresholdan appropriate action as ameasurement error occurred.

In the free space"NIBP: Unit Failure" isdisplayed

A unit failure

Contact us or our distributor torequest repairs.

Actocardiograph MT-830 Operation Manual 187

10-3. SpO2 Measurement Problems
Examples of Failure

Possible Causes

No numbers are displayed The sensor is not applied
appropriately

MT-832-L / P

ActionConnect the SpO2 patient cable tothe main unit and the sensor
securely.
Reposition the sensor.

Mother is moving

Ask the patient to stop moving.

The sensor is exposed to a stronglight

Do not expose the sensor to thelight.

Malfunction of the sensor

Replace the sensor.

In the free space "SpO2:
Check Sensor" isdisplayed

The sensor is not applied
appropriately

Check that the sensor is notapplied to the finger too tightly.

In the free space "SpO2:
Pulse Search" isdisplayed

Detected a pulse

In the free space "SpO2:
Low Pulse" is displayed

Cannot measure because the signal Check the patient’s status.
is not strong enoughFor patients whose bloodstream on
the applied area is poor, reposition
the application position at least
every 2 hours.
Do not apply to the arm with the
BP cuff applied.

In the free space "SpO2:
Unit Failure” is displayed

The SpO2 unit is failed

Reposition the sensor.

188 Actocardiograph MT-830 Operation ManualThis is not a failure. The error
disappears once the detection iscomplete.

Contact us or our distributor torequest repairs.

10 Troubleshooting

10-4. Maternal Heart Rate Measurement Problems
Examples of Failure

Possible Causes

Maternal Heart Rate is not The M.ECG adapter cable is notmonitored correctly
connected to the main unit

In the free space "Check
Electrode" is displayed

MT-832-L / P

ActionConnect the cable to the main unit
securely.

The electrode is not applied
appropriately

Reapply the electrodeappropriately.

The clip of the clip electrode lead is
not applied to the electrodeappropriately

Check for the application status of
the clip.

An electrode with dried gel is used

Check the electrode and replace itwith a new one if necessary.

Signal is full of noise

Wipe the electrode application areawith alcohol.

M.ECG adapter cable is broken

Replace the cable.

A sufficient signal amplitude is notacquired with the selected lead

Select another lead.

The electrode is disconnected

Check the electrode and connect itagain.

In the free space "M.ECG: The device is failed
Over Voltage" is displayed

Contact us or our distributor torequest repairs.

In the free space "M.ECG: The device is failed.
Low Voltage" is displayed

Contact us or our distributor torequest repairs.

Actocardiograph MT-830 Operation Manual 189

10-5. Recorder Problems
Examples of Failure

Possible Causes

ActionCTG is not printed. The
The main unit is not connected to the Connect the main unit to the[Print] button color is gray recorder
recorder.
(Refer to “MP-130 Operation
Manual”)
The recorder is not on
Connect the power cable of therecorder and turn on the power.
(Refer to “MP-130 Operation
Manual”)
The recorder's battery has run out
Connect the power cable of therecorder.
(Refer to “MP-130 Operation
Manual”)
In the free space"Recorder: Low paper
level" is displayed

Recording paper is running low

Load a new batch of recording
paper.
(Refer to “MP-130 Operation
Manual”)

In the free space“Recorder: Paper Out” isdisplayed

No recording paper

Load recording paper.
(Refer to “MP-130 Operation
Manual”)

The recorder cover is open

Close the recorder cover.
(Refer to “MP-130 Operation
Manual”)

The internal temperature of therecorder is rising

Leave the recorder to cool down
without printing.

In the free space
The recorder's battery level is"Recorder: Low Battery" is running low
displayed

Connect the power cable of therecorder.
(Refer to “MP-130 Operation
Manual”)
Contact us or our distributor torequest repairs.

In the free space“Recorder: Temperature”
is displayed

In the free space“Recorder: Head” isdisplayed

An error occurred with the headIn the free space
The recorder is failed.
"Recorder: Unit Failure" isdisplayed

190 Actocardiograph MT-830 Operation Manual

Contact us or our distributor torequest repairs.

11 Specifications/Parts List

11. Specifications/Parts List
11-1. Product Specifications
11-1-1. Material of the parts which touch the surface of the skin
Name

Material

Y-shaped Doppler/External UC
transducer

PC/ABS resin, silicone rubber

Transducer belt

Polyurethane rubber, polyester

Remote marker switch (single)

PC/ABS resin, elastomer material

Remote marker switch (for twins)

PC/ABS resin, elastomer material

Doppler transducer

PC/ABS resin

Ultrasound gel

Propylene glycol/carboxypolymethylene sodium/cellulose
derivative/purified water

External UC transducer

PC/ABS resin, silicone rubber

NIBP wide-range cuff

No.302AHBZX00029000

NIBP M size cuff 22 to 32cm

No.302AHBZX00029000

NIBP LA size cuff 31 to 45cm

No.302AHBZX00029000

SpO2 disposable sensor for adults

No.13B1X10223000001

SpO2 reusable sensor for adults

No.13B1X10223000003

SpO2 forehead disposable sensor

No.13B1X10223000036

SpO2 forehead reusable sensor

No.13B1X10223000003

11-1-2. Device category
Category

Description

Classification by protection typeto electric shock

Class I and internal power supply devices

Classification of applied part byprotection level to electric shock

Y-shaped Doppler/External UC transducer, Doppler transducer,
External UC transducer, NIBP wide-range cuff, SpO2 disposable
sensor for adults, SpO2 reusable sensor for adults, SpO2
forehead disposable sensor, SpO2 forehead reusable sensor,
remote marker switch: Type BF applied part
M.ECG adapter cable: Type C applied part

Classification by protection levelto hazardous entry of water

Main unit: IPX0
Transducer, remote marker switch: IPX7 (excluding theconnector to the main unit)

Classification by actuation(operation) mode

Continuous actuation (operation) device

Actocardiograph MT-830 Operation Manual 191

11-1-3. Electrical rating
Category of power
supplyExternal

Alternating
current/direct current

Internal
MT-831-L / MT-831-S

MT-832-L / MT-832-P

Alternating current

Direct current

Direct current

Rated voltage

100 - 240 V

14.4 V

14.4 VPower input/capacity

1.6 - 0.7 A

3.45 Ah

6.90 Ah

Frequency

50 - 60 Hz--

11-1-4. Dimension/weight
Category

Description

Main Unit

278 mm (W) × 264 mm (H) × 145 mm (D)(excluding protrusions, tolerance ±10%)
MT-831-L / MT-831-S：2.2 kg
MT-832-L / MT-832-P：2.9 kg(excluding accessories, tolerance ±10％)

Y-shaped Doppler/External
UC transducer

66 ±7 mm (W) × 18 ±2 mm (H) × 80±9 mm (D)／240 ±24 g
Length 2.85 ±0.1 m

Doppler transducer

66 ±7 mm (W) × 18 ±2 mm (H) × 80±9 mm (D)／170±17 g
Length 2.85 ±0.1 m

Remote marker switch

73 ±7 mm (W) × 45 ±5 mm (H) × 28 ±3 mm(D)／100 ±10 gLength 2.5 ±0.3 m

11-1-5. Technical specifications
Category
Fetal heart ratemeasurement by
ultrasound doppler

External UC

Measurement
function

Details

Description

Ultrasound driving
methodPulse Doppler with autocorrelation processing

Oscillating frequency

1.108 MHz ±10%

Ultrasound powerNot more than 10 mW/cm2 Tl, Ml<1.0

Heart rate measuring
range

50-240 bpm

Heart rate measuring
accuracy

Within ±3 bpm

UC input

Strain gauge

Measuring range

0-100 UNIT

Contraction sensitivity
mode

1.33 times the normal mode

Recording sensitivity

30 mm on the recording paper for 100 g load

Double Doppler
Single HeartTwo Doppler transducers are used for a single
pregnancy to monitor across a wide range.

Contraction cycle
monitoring

The intervals of contraction peaks are monitored,
displayed, and printed.

192 Actocardiograph MT-830 Operation Manual

11 Specifications/Parts List
Category

Details

Maternal noninvasive bloodpressure (NIBP)

Measurement method

Oscillometric method

Pressure measuring
range

0 to 299 mmHg

Pressure measuring
accuracy±3 mmHg（0 to 299 mmHg）

MAX. Compress

299 mmHg

BP measuring range[Compress measurement]
・MAX. BP: 60 to 280 mmHg
・MIN. BP: 40 to 200 mmHg
[Decompress]
・MAX. BP: 40 to 280 mmHg
・MIN. BP: 20 to 200 mmHg

BP measuring
accuracy±3 mmHg

PR measuring range

30 to 240 bpm

PR measuring
accuracy±2 % or ±2 bpm whichever is larger

Measurement method

2 wavelength pulse oximetry

LED wavelength

660 nm、905 nm *1)

Optical output power

15 mW or lessSpO2 measuring range

１～100 %

SpO2 measurement
error *2)

±2 ％ (70 to 100 ％, without body movement, runninglow pulsation included)±3 % (70 to 100 ％, with body movement)

PR measuring range

30-240 bpm

PR measuring
accuracy±3 bpm (without body movement, running low
pulsation included)±5 bpm (with body movement)

SpO2 Alarm delay

24 seconds or less

Measurement method

Peak trigger method

Lead

Ⅰ, Ⅱ, Ⅲ

Heart rate measuring
range

30-240 bpm

Heart rate measuring
accuracy±1 bpmHow to calculate theaverage HR

Judged pulse is 100bpm or more: 8 pulses of moving
average
Judged pulse is less than 100bpm: 4 pulses ofmoving averageTime it takes to
respond for the HRchangeChange from pulse 80bpm to 120bpm: 10 seconds or
lessChange from pulse 80bpm to 40bpm: 10 seconds or
less

M.ECG REC speed

25mm/sec.

Maternal arterial
blood oxygen
saturation (SpO2)

MHR(M.ECG method)

Description

Actocardiograph MT-830 Operation Manual 193

Category

Details

Description

Disconnected
electrode detection

On

Frequency
characteristics

0.3 to 40Hz(-3dB)

Removal capability ofhigh T wave

0 to 1.3mV

Accuracy of HR
detection portion andresponse to irregularrhythms

A1: Ventricular bigeminy: 80bpm
A2: Slow alternating ventricular bigeminy: 60bpm
A3: Rapid alternating ventricular bigeminy: 120bpm
A4: Bidirectional systoles: 80-96bpm

MethodThermal headFeeding speed

10, 20, 30 mm/min

Range of recording

HR 50-210 bpm/80 mm or 30-240 bpm/70 mm
UC 0-100[UNIT]/40 mm

Simultaneousrecordings

HR area 4 channels, UC area 4 areas, remotemarker switch area 2 channels

Applicable recordingpaper

0030-026, 0030-027

Heart rate and pulse
rate alarm

Alarm settings with user-selectable high and low fetal
heart rate and delay time.

Wrong heart ratemeasurement alarm

Alarm of two sensors measuring the same heart rate

Device alarm

Alarm regarding the state of the device such as out of
paper and low battery.

Alarm sound pressurelevel

45 dBA to 85 dBA

LAN interface

Supported standard

Compliant to 100BASE-TX

Wireless LAN

Supported standard￭ IEEE802.11-2012 (a/b/g/n)￭ IEEE802.11ac-2013

Security

WPA-Personal

TKIP

PSK

WPA2-Personal

AES

PSK

WPA-Enterprise

TKIP

EAP-TLS/PEAP

WPA2-Enterprise

AES

EAP-TLS/PEAP

Print function (withrecorder unit
connected)

Alarm function

Bluetooth
Fetal movement

Supported standard

Bluetooth standard Ver. 5.1

Visibility distance

10 m

Auto measurement of fetal movement spike waveform by Doppler ultrasoundsystem.
Fetal movement spike waveforms and dot recording by thresholds.
Monitoring of maternal perception by the Remote marker.

Fetal heart ratesound monitor

Doppler original sound/MHR/switch synchronized PR sound

Display function

10.1-inch TFT LCD panel, resolution: 1280 x 800 (WXGA)

External I/O

IO-1: For connecting our Central monitor

194 Actocardiograph MT-830 Operation Manual

11 Specifications/Parts List
Category

Details

Description

IO-2: For connecting options
IO-3: For connecting options
IO-4: For connecting options
IO-5: For connecting options
Battery operation

Working hours

120 min

Charging time
(0% to 90%)

MT-831-L / MT-831-S : 5 hours and 30 min.
MT-832-L / MT-832-P : 6 hours and 30 min.

*1) Information on the wavelength range may be helpful for a photodynamic therapy.
*2) For the SpO2 degree of certainty, as monitoring values of the pulse oximeter are statistically
distributed, only 2/3 of the values monitored using the pulse oximeter are included in ±Arms ofthe monitoring values of ±Arms using the CO oximeter.
*3) A clinical test report in which SpO2 accuracy is evaluated is provided by Masimo.
The relevant information is as follows:
The Masimo SET technology with Masimo sensors has been validated for no motion accuracy
in human blood studies on healthy adult male and female volunteers with light to dark skinpigmentation in induced hypoxia studies in the range of 70-100% SpO2 against a laboratory
CO-Oximeter and ECG monitor. This variation equals ±1 standard deviation. Plus or minus
one standard deviation encompasses 68% of the population.
The Masimo SET technology with Masimo sensors has been validated for motion accuracy inhuman blood studies on healthy adult male and female volunteers with light to dark skinpigmentation in induced hypoxia studies while performing rubbing and tapping motions, at 2 to
4 Hz at an amplitude of 1 to 2 cm and a non-repetitive motion between 1 to 5 Hz at an
amplitude of 2 to 3 cm in induced hypoxia studies in the range of 70-100% SpO2 against alaboratory CO-Oximeter and ECG monitor. This variation equals ±1 standard deviation, which
encompasses 68% of the population.
The Masimo SET technology has been validated for low perfusion accuracy in bench top
testing against a Biotek Index 2™ simulator and Masimo’s simulator with signal strengths ofgreater than 0.02% and transmission of greater than 5% for saturations ranging from 70 to
100%. This variation equals ±1 standard deviation. Plus or minus one standard deviationencompasses 68% of the population.
The Masimo SET Technology with Masimo Neo sensors has been validated for neonatal
motion accuracy in human blood studies on healthy adult male and female volunteers withlight to dark skin pigmentation in induced hypoxia studies while performing rubbing andtapping motions, at 2 to 4 Hz at an amplitude of 1 to 2 cm and a non-repetitive motion between
1 to 5 Hz at an amplitude of 2 to 3 cm in induced hypoxia studies in the range of 70-100%
SpO2 against a laboratory CO-Oximeter and ECG monitor. This variation equals ±1 standard
deviation. Plus or minus one standard deviation encompasses 68% of the population. 1% has
been added to the results to account for the effects of fetal hemoglobin present in neonates.
The Masimo SET technology with Masimo sensors has been validated for pulse rate accuracy
for the range of 25 to 240 bpm in bench top testing against a Biotek Index 2™ simulator. Thisvariation equals ±1 standard deviation. Plus or minus one standard deviation encompasses
68% of the population.
See sensor directions for use (DFU) for complete application information. Unless otherwise
indicated, reposition reusable sensors at least every 4 hours and adhesive sensors at least
every 8 hours.
Sensor accuracy specified when used with Masimo technology using a Masimo patient cablefor LNOP sensors, RD SET sensors, the LNCS sensors, or the M-LNCS sensors. Numbers
represent Arms (RMS error compared to the reference). Because pulse oximetermeasurements are statistically distributed, only about two-thirds of the measurements can be
Actocardiograph MT-830 Operation Manual 195

expected to fall within a range of ± Arms compared to the reference value. Unless otherwise
noted, SpO2 accuracy is specified from 70% to 100%. Pulse Rate accuracy is specified from25 to 240 bpm.
*4) A functional test machine (test device with which a predictable ratio value can be input to thepulse oximeter as a signal) is not available for evaluating the accuracy of the device and the
SpO2 sensor.

196 Actocardiograph MT-830 Operation Manual

11 Specifications/Parts List

11-1-6. Electromagnetic Compatibility (EMC) Information
The device is compliant with the Electro-medical Apparatus EMC Standards Edition 4 (IEC60601-12: 2014).
This device has been confirmed to meet the standards when configured as shown below.
Using accessories or cables other than those specified may increase emissions from the device or
not meet the performance of the device.
Devices Used for EvaluationNo
1
2

DeviceModel number

4
5
6

Fetal monitor
Recorder unit
Y-shaped Doppler/External UC
transducer
Doppler transducer
Doppler transducer
Remote marker switch (for twins)

7

SpO2 sensor

8
9
10
11
12
13
14
15
16
17

NIBP wide-range cuff
M.ECG adapter cableBar code reader
USB memory
Laptop PC
Wireless LAN access point
PoE HUB
AC Adapter (for the main unit)
AC Adapter (for the recorder)
AC Adapter (for the PC)

3

MT-832-P-H
MP-130-H
TR-687-06
TR-629-06
TR-629-06
SW-527-02
uSpO2 Masimo SET Oximetry Cable
with USB Connector
UM-WRRS2M1KJC
TR-655-05
PDC-019-060-UP
RUF2-KR-16GA-WH
CF-W7DW3AASWLX313
EIB-UG01-PL2
ATM065T-P240
ATM065T-P240
CF-AA6372b

Cables Used for Evaluation
No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

Cable Name
USB cable
Y-shaped Doppler/External UC transducer
Doppler transducer
Doppler transducer
Remote marker switch (for twins)
SpO2 cable
SpO2 reusable sensor
NIBP air hose for adults
M.ECG adapter cable
Clip electrode lead (R red)Clip electrode lead (L yellow)
Clip electrode lead (F green)
DOP signal output cableBar code reader cable
LAN cable
Wireless LAN access point connection
LAN cable

Length (m)Shield

1.6
2.9
2.9
2.9
2.9
1.8
0.9
2.5
1.85
1.0
1.0
1.0
1.0
1.9
10

With
With
With
With
With
With
Without
Without
With
With
With
With
Without
With
Without

1.0

Without

Actocardiograph MT-830 Operation Manual 197

No

Cable Name

17
18
19
20
21
22
23
24

AC cable (for the fetal monitor)
AC cable (for the recorder)
AC cable (for the PC)
AC cable (for PoE HUB)
DC cable (for the fetal monitor)
DC cable (for the recorder)
DC cable (for the PC)
Twins link cable

Length (m)Shield

2.0
2.0
2.0
2.0
1.5
1.5
1.5
0.5

Without
Without
Without
Without
Without
Without
WithoutWith

Pay special attention to electromagnetic compatibility (EMC) when using the device. Follow thecautions on EMC described in this manual to install and work with the device. Medical electronic
devices are prone to be affected by mobile phones and mobile harmonic (RF) communication
devices.
The device has a very high signal amplifier integrated to measure fatal signals including fetus
parameters with a high degree of sensitivity. Therefore, an immunity level for conducted disturbanceinducted by a radiation wireless frequency electromagnetic field and a wireless frequency field has atechnical limit.
The immunity test defines that the device's performance should not degrade when the product isplaced in an environment where electromagnetic disturbances are simulated. However, aphenomenon has been noted in some frequencies in which the display and recorder output of
ultrasonic wave parameters are not normal.
The above phenomenon is not unique to the device but often can be seen on a general biologicalinformation monitor, rarely causing problems due to clinical electromagnetic waves.

11-1-6-1. Electromagnetic Emission
Policies and declaration by manufacturer －Electromagnetic radiation－
The device is intended to be used in the electromagnetic environment shown below.
We recommended using the device under the following environment:
Emission Test

Electromagnetic Environment －Policy－

Suitability

RF emission CISPR11

Group 1The device uses RF energy only for internalfunctions. Therefore, the RF emission is very low andless likely to cause any interference with adjacentelectronic devices.

RF emission CISPR11

Class B

Harmonic emission
IEC61000-3-2

Not applicable

Voltage fluctuation/
flicker emission
IEC61000-3-3

Not applicable

The device is suitable for use in a facility directly
connected to a commercial low voltage distribution
network which supplies power to all facilities,
including buildings used for domestic and household
circumstances.

198 Actocardiograph MT-830 Operation Manual

11 Specifications/Parts List

11-1-6-2. Electromagnetic Immunity
Policies and declaration by manufacturer －Immunity－
The device is intended to be used in the electromagnetic environment shown below.
We recommend using the device under the following environment:
Immunity Test

IEC 60601 Test Level

Suitability Level

Electromagnetic
Environment －Policy－

Static discharge(ESD)
IEC61000-4-2

Contact discharge:±8.0kV
Aerial discharge:±2.0kV,±4.0kV,±8.0kV,±15.0kV

Contact discharge:±8.0kV
Aerial discharge:±2.0kV,±4.0kV,±8.0kV,±15.0kV

We recommend that floor
materials are made ofwood, cement, or ceramictiles.
When floor materials arecovered with synthetic
resin, keep the relative
humidity to 30% or more.

Electric fast transient
burst
IEC61000-4-4±2.0kV power wire
±1.0kV signal wire

±2.0kV power wire
±1.0kV signal wire

We recommend using
power quality that isequivalent to that of astandard commercial or
hospital environment.

Surge
IEC61000-4-5±1kV line-line±2kV line-ground±1kV line-line±2kV line-groundWe recommend using
power quality that isequivalent to that of astandard commercial or
hospital environment.

Voltage dip,
momentary stop,and voltage
fluctuation
IEC61000-4-11

0% Ut
0.5 cycle
0°, 45°, 90°, 135°, 180°,
225°, 270°, 315°

0% Ut
0.5 cycle
0°, 45°, 90°, 135°,
180°, 225°, 270°, 315°

0% Ut
1 cycleand
70% Ut25/30 cycle
Single phase: 0°0% Ut
1 cycleand
70% Ut25/30 cycle
Single phase: 0°

We recommend using
power quality that isequivalent to that of astandard commercial or
hospital environment.
If continuous operation isrequired during electric
outage, the operator
should supply power froma UPS.

0% Ut
250/300 cycle

0% Ut
250/300 cycle

30 A/m30 A/mPower frequency
magnetic field
IEC 61000-4-8

We recommend using
power quality that isequivalent to that of astandard commercial or
hospital environment.

Remarks: Ut denotes an AC voltage prior to addition of the test level.

Actocardiograph MT-830 Operation Manual 199

Policies and declaration by manufacturer －Immunity－
The device is intended to be used in the electromagnetic environment shown below.
We recommend using the device under the following environment:
Immunity Test
Conducted RF
IEC61000-4-6

Radiated RF
IEC61000-4-3

IEC 60601 Test Level

Suitability
Level

3Vrms
150kHz to 80MHz

3V rmsWithin ISM banda

6Vrms

3V/m
80MHz to 2.7GHz

3V/m

Electromagnetic Environment－
Guidance
We recommend using frequency
ranges from 150kHz to 80MHz andthat the electromagnetic strength isless than 3V/m.
Interference may be detected neardevices with the symbol shown
below.

Remarks 1. A higher frequency range is applied for 80MHz and 800MHz.
Remarks 2. These policies do not always apply under all conditions. Propagation of electromagnetic
waves is affected by absorption from and reflection against buildings, objects, and humanbodies.
a: ISM (industrial, scientific, and medical) band between 150kHz and 80MHz is equal to 6.765MHz to
6.795MHz, 13.553MHz to 13.567MHz, 26.957MHz to 27.283MHz, and 40.66MHz to 40.70MHz.
b: Theoretically, the electromagnetic field strength from fixed transmitters, for example, a wirelessphone base station (mobile/cordless) and a land mobile radio, an amateur radio, AM/FM radio andTV broadcasting cannot be predicted accurately. To evaluate an electromagnetic environment
resulting from fixed RF transmitters, we advise considering a field investigation of electromagnetic
waves. If the accurate electromagnetic field strength at a location in which the device is used
exceeds the above levels, observe that the device is working correctly. Once an abnormal behavior
has been detected, additional measures, including changing the orientation and installation positionof the device are required.

200 Actocardiograph MT-830 Operation Manual

11 Specifications/Parts List

Specifications of the immunity test of an enclosure port for an RF wireless communication device
We recommend that any mobile RF communication devices (including such peripheral equipment as
an antenna cable and external antenna) are more than 30cm away from any parts of the device
including cables.
Otherwise, the performance of the device may degrade.
Testfrequency
(MHz)

Band
（MHz）

ServiceModulation

Maximum
Power (W)Distance（m）

Immunity
Test Level
(V/m)

385

380 to 390

TETRA 400

Pulse
modulation
18Hz

1.8

0.3

27

450

430 to 470

GMRS 460,
FRS 460

FM±5kHz
deviation
1kHz sine

2

0.3

28

710

704 to 787

LTE band 13, 17

Pulse
modulation
217Hz

0.2

0.3

9

800 to 960

GSM800/900,
TETRA 800,
iDEN 820,CDMA 850,
LTE band 5

Pulse
modulation
18Hz

2

0.3

28

1700 to 1990

GSM 1800,
CDMA 1900,
GSM 1900,
LTE band 1, 3,
4, 25
UMTS

Pulse
modulation
217Hz

2

0.3

28

2450

2400 to 2570

Bluetooth,
WLAN,
802.11 b/g/n,
RFID 2450,
LTE band 7

Pulse
modulation
217Hz

2

0.3

28

5240

5100 to 5800

WLAN 802.11
a/n

Pulse
modulation
217Hz

0.2

0.3

9

745
780
810
870
930
1720
1845
1970

5500
5785

Actocardiograph MT-830 Operation Manual 201

11-1-7. Classification by sterilization methods
Dipping method. The following chemicals are used for the IEC 60601-1 test:
Name of Chemicals

Dosage and Administration

DippingTime

STERIHYDE L
20 W/V% solution

Carefully measure 100 mL, add it to 900 mL of purified
water to make 1 L of 2 W/V% solution, add 30 ｍL of buffer
agent to this to make a greenish yellow (L: greenish yellow
to light yellow) solution.

30
minutesOsvan disinfectant 10%

Used by diluting with purified water. 100 times solution(0.1% solution)

10
minutes

TEGO 51 disinfectant
10%

Used by diluting with purified water. 50 times solution (0.2%solution)

15
minutes

11-1-8. Wiping test
Undiluted natural detergent was used for the IEC 60601-1 test.

11-1-9. Classification by safety level in use in the presence of air andflammable anesthetic gas, or oxygen or nitrogen monoxideand flammable anesthetic gas
The device must not be used in the presence of air and flammable anesthetic gas, or oxygen or
nitrogen monoxide and flammable anesthetic gas.

11-1-10. Network
The device can send monitoring data to the Central monitor over an IT network in real time andcheck for the patient's status remotely.
Some Central monitors work on the in-hospital server, providing different paths for data
communication respectively.
The former Central monitors communicate over a connected LAN cable network.
Central monitors may communicate over an in-hospital Internet-connected environment while they
may communicate over out-of-hospital mobile data communication.
Security risks to the IT network are reduced by using a VPN.
Be sure to confirm with the IT administrator in the hospital about the connections in advance.
The following risks may arise if a failure is detected in the IT network:• The patient's status cannot be identified on the Central monitor.

• An alarm issued by the device cannot be identified.
• Transmission of the monitoring data is delayed.
• The monitoring data is intercepted and falsified.

202 Actocardiograph MT-830 Operation Manual

11 Specifications/Parts List
When the device is added to the Central monitor or the network environment has changed, new risks
may arise for the patient, operator, or third-party.
Identify, evaluate these risks, and then take appropriate measures.
Example of network environment change:• Changing network configurations• Adding new Fetal monitor or device to the network• Removing the Fetal monitor or device from the network• Updating the Fetal monitor or device connected to the network• Upgrading the device connected to the network

Actocardiograph MT-830 Operation Manual 203

11-2. Accessories/Options List
11-2-1. Accessories supplied
Name

Product
CodeStandard or Model
Name

Cable Length(m)

Quantity

Power cord
Note 1

YA0075

2.0

1

YA00742.0

1

AC adapter

RI0131

ATM065T-P240

1.5

1Y-shaped Doppler/External
UC transducer

GA0128TR-687-06

2.9

1Remote marker switch(single)GA1264SW-527-01

2.9

1Transducer belt

GA0115

Personal belt, 2
pcs/set (each 1 pc
for Doppler&UC)-

1

Ultrasound gel
Note 2GA0132Aquasonic 100 gel,
250 ml/bottle-

1

NIBP air hose for adults
1.5m one-touch ISO

GA1277

TM-9232BL-150

2.5

1

NIBP wide-range cuff 22 to
42cm

GA1278

UM-WRRS2M1KJC-

1M.ECG adapter cable

GA1259TR-655-05

1.85

1Clip electrode lead (R red)

YC0082TR-653-91R

1.0

1Clip electrode lead
(L yellow)

YC0080TR-653-91L

1.0

1Clip electrode lead
(F green)

YC0091

TR-653-91F

1.0

1Ferrite core

RC0074-

1

Operation Manual(This document)

GZ1292-1

Note1: Either Cord YA0075, YA0074, or no cord is included depending on the country.
Note2: Whether it is included or not depends on the country.

204 Actocardiograph MT-830 Operation Manual

11 Specifications/Parts List

11-2-2. Options List

Doppler transducer

Product
Code
GA0129Standard or Model
Name
TR-629-06

External UC transducer

GA0130TR-619-06

2.9

Remote marker switch (twins)

GA1265SW-527-02

2.9

Twins set

GA1770-

Triplets (three fetuses) set

GA1771-

Recorder unit

GA1286

MP-130-NIBP M size cuff 22 to 32cm

GA1287

UM-AURS2M1KJC-

NIBP LA size cuff 31 to 45cm

GA1288

UM-LARS2M1KJC-

NIBP monitor set（MT-830）

GA1276

SpO2 patient cable

JA2193

SpO2 disposable sensor for adults(20 pcs./box)

Name

Cable Length
(m)
2.9

1.8

GA1281

uSpO2 Masimo SET
Oximetry Cable with
USB Connector
LNCS Adtx

SpO2 reusable sensor for adults

GA0163

LNCS DCI

0.9

SpO2 forehead disposable sensor

GA0164

LNCS Red TFA-1

0.9

SpO2 forehead reusable sensor

GA0165

LNCS TF-I

0.9

SpO2 monitor set（disposable）（MT-830）
SpO2 monitor set（reusable）（MT-830）

GA1279-GA1282-

Analog converter unit

AA1267

MF-7450

0.9-

Actocardiograph MT-830 Operation Manual 205

11-3. Service Parts
The service life of this device is six years after its purchase. However, the following components aresupplied for maintenance since they have shorter service lives than that of the device.
We will store the parts necessary for repairs for six years after the device is sold. The timing of thereplacement will depend on the frequency of use and the environment in which the device is used.
Replace components that fail inspections.
If you have any questions, contact us or our distributor.
Names of Major Components

Service Life

Reasons for Service Life

Power cord

4 years

Consumable, degradation of the cablejacketAC adapter

3 - 4 years

Aging degradation, deformed ordamaged plugs, degraded cablejacketDoppler transducer

5 years

Degradation with use

External UC transducer

4 years

Degradation with use

NIBP air hose for adults

3 - 4 years

Degradation with use

1 yearDegradation with use

SpO2 patient cable3 - 4 years

Degradation with use

M.ECG adapter cable3 - 4 years

Degradation with use

Clip electrode lead2 - 3 years

Degradation with use

Battery for clock

3 years

Consumption

Lithium ion battery

2 years

Degradation by charge and discharge

NIBP cuff

Remote marker switch (single/twins)

3 - 4 years

Degradation with use* The table does not show components that can normally function after the service life of the device.

206 Actocardiograph MT-830 Operation Manual

12 About Disposal and Warranty

12. About Disposal and Warranty
12-1. Service Life/Disposal
12-1-1. Service life
The service life of this device is six years after sale. (Based on our self-certification using in-housedata. This applies only when the designated maintenance and inspection was performed).
Some components may degrade with age within the service life. It is necessary to regularly replacecomponents to maintain the performance of the device during its service life. Conduct repairs oroverhauls depending on the results of inspections as needed.

12-1-2. Disposal
The device is classified as industrial waste. Contact your local authority for disposal. The device has
a built-in battery. For disposal of the main unit, recycle or dispose in accordance with your local
authority rules and regulations.
Not complying with regulations may cause environmental pollution.
Contact us or our distributor if disassembly (such as removing the battery) or other support isnecessary.

12-2. Warranty
We will repair the device free of charge within the warranty period.
For repairs after the warranty period, we will repair the devices that have been used normally only.
After the warranty period, the cost of the repair will be charged only if the product is used normally.
We will store the parts necessary for repairs for six years after the device is sold.

Actocardiograph MT-830 Operation Manual 207

Notification to Users
Pursuant to the provisions of the Pharmaceuticals and Medical Devices Etc. Act, we must provide
users with information related to the effectiveness and safety of the device and informationnecessary for proper use of the device. Also, it is required by law that users must cooperate in thecollection of information necessary for proper use.
If you encounter any problems, contact us and provide the following information.
(Inform) Toitu Co., Ltd. International Department
1-5-10, Ebisu-Nishi, Shibuya-Ku, Tokyo, 150-0021 Japan
Tel: +81-3-3463-6381
Fax: +81-3-3463-6380● Address● Facility name● Contact person
Device name: Actocardiograph MT-830

Serial number:

Problem

For the purpose of improvements, the contents of this document are subject to change without
notice.

208 Actocardiograph MT-830 Operation ManualIndexＡ
Accessories ..................................................... 16
Accessories supplied..................................... 204

Event ................................................... 32, 35, 82
Expert mode .................................................. 149
External UC transducer ................................... 19

Adjusting the Doppler sound volume ............... 51

Ｆ

Air hose ......................................................... 175

F.HR Alarm .................................................... 123

Alarms ........................................................... 109

Fetal Heart Rate Alarm .................................. 114

Alert Screen..................................................... 38

Finish using ................................................... 107

Apgar Score .................................................... 84

Fitting position (Doppler transducer) ............... 59

Application position (M.ECG electrode) ........... 73

Fitting position (External UC transducer) ......... 61

Apply the SpO2 sensor.................................... 71

Follow-up print ............................................... 118

Ｂ

Ｈ

Biological alarm ............................................. 110

Heartbeat synchronization symbol .................. 59
History Screen ................................................. 97

Ｃ
Changing the Measure Mode .................... 32, 89

Home ............................................................... 22

Check the battery charge status ...................... 42

Ｉ

Check the M.ECG adapter cable ..................... 53

Inspecting alarm ............................................ 181

Check the recorder .......................................... 53

Inspection after use ....................................... 178

Cleaning and sterilization of the main unit ..... 174

Inspection before use .................................... 178

Cleaning and sterilization of transducers ....... 174

Internal Examination............................ 32, 35, 80

Clip electrode lead................................... 17, 175
Clock Sync .................................................... 144
Confirm the contraction level ........................... 53
Confirm the Doppler sound.............................. 52
Connect the transducer ................................... 43
Connecting NIBP ............................................. 44
Connecting SpO2 ............................................ 44
Connecting the accessories ............................ 46
Connecting the M.ECG adapter cable ............. 45
Connecting the remote marker switch ............. 43

Ｍ
M.ECG adapter cable .............................. 17, 175
M.HR / M.PR Alarm ....................................... 124
Maternal Heart Rate / Maternal Pulse Rate
Alarm ......................................................... 115
Maternal monitoring Mode ......................... 87, 89
Maternal monitoring Mode Screen .................. 36
Measure Mode ................................................ 75
Menu Screen ................................................... 31

CTG Print ........................................................ 92

MHR monitoring .............................................. 72

Ｄ

Monitoring area ............................................... 25

Monitor Doppler Fetal Heart ............................ 58

Date and Time Setting ..................... 49, 144, 184

Monitoring the External UC ............................. 61

Device alarm ................................................. 110

Move the position of the Doppler transducer ... 79

Display the Stored Data................................... 97
Disposal......................................................... 207

Ｎ

Doppler transducer .......................................... 19

NIBP air hose for adults................................... 17

Ｅ

NIBP continuous measurement ....................... 67

Electromagnetic Compatibility (EMC) ........ 9, 197

NIBP Alarm ............................................ 116, 125
NIBP cuff ....................................................... 175

Actocardiograph MT-830 Operation Manual 209

NIBP measurement ......................................... 63

Single Heart Mode setting ............................. 135

NIBP wide-range cuff....................................... 17

Six-month inspection ..................................... 179

Night Mode .............................................. 32, 104

Specify the measurement time ........................ 78

Ｏ
Options .................................................... 18, 205
Original waveform display (M.ECG) ................ 74
Original waveform display (PULSEWAVE) ...... 71
Out of Hospital............................................... 105

Ｐ
Paper Out Alarm ............................................ 118
Periodic inspection ........................................ 180

SpO2 Alarm ............................................ 117, 126
SpO2 disposable sensor .................................. 19
SpO2 measurement ......................................... 69
SpO2 patient cable........................................... 19
SpO2 reusable sensor ..................................... 19
Start monitoring ............................................... 75
Stop monitoring ............................................... 96
Storage and Transport conditions.................. 183
Suspend measurement ................................... 94

Power cord ...................................................... 41

Ｔ

Print ................................................................. 90

Top Sheet ........................................................ 90

Print item name ............................................... 90
Print the Apgar Score list ................................. 86
Print the event list ............................................ 83
Print the fetal movement mark......................... 93
Print the internal examination list ..................... 81

Ｒ
Recorder.......................................................... 19
Recording Paper.............................................. 39

Transducer belt........................................ 17, 176
Troubleshooting ............................................. 184
Turn off the power.......................................... 107
Turn ON the power .......................................... 48

Ｕ
Ultrasound gel ................................................. 58
Ultrasound gel Bottle ..................................... 175

Registering Patient Information ....................... 55

Ｗ

Remote marker switch ....................... 17, 19, 175

Warranty ........................................................ 207

Resume measurement .................................... 95

Waveform Area ................................................ 28

Ｓ

Wear a cuff ...................................................... 66

Service life ..................................................... 207

ＹService Parts ................................................. 206

Y-shaped Doppler/External UC transducer ...... 17

Side Window ........................................... 33, 106
Simple mode ................................................. 149
Single Heart Mode ........................................... 43

210 Actocardiograph MT-830 Operation ManualＺ
ZeroSet...................................................... 31, 62

Manufacturer TOITU CO., LTD.
1-5-10, Ebisu-Nishi, Shibuya-Ku, Tokyo, 150-0021 Japan
TEL: +81-3-3463-6381 FAX: +81-3-3463-6380
E-mail:international@toitu.co.jp
URL:https://en.toitu.co.jp