Digital Blood Pressure Monitor

Model UA-621
Instruction Manual

1WMPD4001898E

Contents
Dear Customers ............................................................................................ 1
Preliminary Remarks...................................................................................... 2
Precautions.................................................................................................... 2
Parts Identification......................................................................................... 3
Symbols......................................................................................................... 4
Operation Mode ............................................................................................ 5
Using the Monitor.......................................................................................... 6
Installing / Changing The Batteries ......................................................... 6
Connecting The Air Hose......................................................................... 6
Connecting The AC Adapter.................................................................... 6
Selecting The Correct Cuff....................................................................... 7
Applying The Arm Cuff............................................................................ 8
How To Take Proper Measurements.......................................................... 8
Measurement........................................................................................... 8
After Measurement.................................................................................. 8
Measurements............................................................................................... 9
Normal Measurement.............................................................................. 9
Measurement With The Desired Systolic Pressure ................................. 10
Notes For Proper Measurement............................................................. 10
About Memory ............................................................................................ 11
Recalling Data........................................................................................ 11
Clearing Data......................................................................................... 11
What Is An Irregular Heartbeat .................................................................... 12
Pressure Bar Indicator.................................................................................. 12
WHO Classification Indicator ....................................................................... 12
About Blood Pressure.................................................................................. 13
What Is Blood Pressure? ......................................................................... 13
What Is Hypertension And How Is It Controlled? ................................... 13
Why Measure Blood Pressure At Home? ................................................ 13
WHO Blood Pressure Classification........................................................ 13
Blood Pressure Variations ...................................................................... 13
Troubleshooting.......................................................................................... 14
Maintenance................................................................................................ 15
Technical Data............................................................................................. 15

Dear Customers
Congratulations on purchasing a state-of-the-art A&D blood pressure monitor,
one of the most advanced monitors available today. Designed for ease of use
and accuracy, this device will facilitate your daily blood pressure regimen.
We recommend that you read through this manual carefully before using
the device for the first time.
1Preliminary Remarks
This device conforms to the European Directive 93/42 EEC for Medical Products.
mark of conformity.
This is made evident by the(0123: The reference number to the involved notified body).
The device is designed for use on adults only, not newborns or infants.
Environment for use. The device is for use in the home healthcare environment.
This device is designed to measure blood pressure and pulse rate of people fordiagnosis.

Precautions
Precision components are used in the construction of this device. Extremes intemperature, humidity, direct sunlight, shock or dust should be avoided.
Clean the device and cuff with a dry, soft cloth or a cloth dampened with waterand a neutral detergent. Never use alcohol, benzene, thinner or other harshchemicals to clean the device or cuff.
Avoid tightly folding the cuff or storing the hose tightly twisted for long periods, assuch treatment may shorten the life of the components.
The device and cuff are not water resistant. Prevent rain, sweat and water fromsoiling the device and cuff.
Measurements may be distorted if the device is used close to televisions,microwave ovens, cellular telephones, X-ray or other devices with strong
electrical fields.
Used equipment, parts and batteries are not treated as ordinary household waste,
and must be disposed of according to the applicable local regulations.
When the AC adapter is used, make sure that the AC adapter can be readily
removed from the electrical outlet when necessary.
When reusing the device, confirm that the device is clean.
Do not modify the device. It may cause accidents or damage to the device.
To measure blood pressure, the arm must be squeezed by the cuff hard enoughto temporarily stop blood flow through the artery. This may cause pain, numbness
or a temporary red mark to the arm. This condition will appear especially whenmeasurement is repeated successively. Any pain, numbness, or red marks will
disappear with time.

Contraindications

The following are precautions for proper use of the device.
Do not apply the cuff on an arm with another medical electrical equipment attached.
The equipment may not function properly.
People who have a severe circulatory deficit in the arm must consult a doctor
before using the device, to avoid medical problems.
Do not self-diagnose the measurement results and start treatment by yourself.
Always consult your doctor for evaluation of the results and treatment.
Do not apply the cuff on an arm with an unhealed wound.
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Do not apply the cuff on an arm receiving an intravenous drip or blood transfusion.
It may cause injury or accidents.
Do not use the dvice where flammable gases such as anesthetic gases arepresent. It may cause an explosion.
Do not use the device in highly concentrated oxygen environments, such as ahigh-pressure oxygen chamber or an oxygen tent. It may cause a fire or explosion.

Parts Identification
DC jack
AC adapter Plug

Display

1.5V Batteries(R6P, LR6 or AA)

START button
Air Socket
Air Connector Plug
Air Hose
Proper Fit Range
Index MarkArm Cuff
Artery position markBattery Compartment

Battery CoverPart of Display

MEMORY

Systolic Pressure
Diastolic Pressure

Pressure Bar IndicatorandWHO Classification Indicator

Pulse Rate

Heart Mark

I.H.B. Indicator(Irregular heartbeat indicator)

Battery Indicator3Symbols
Symbols

Function / Meaning
Recommended Action
Standby and Turn the device on.
Battery installation guide
Direct current
Type BF: Device, cuff and tubing aredesigned to provide special protection
against electrical shocks.
The indicator that appears while
Measurement is in progress.
measurement is in progress. It blinks
Remain as still as possible.
when the pulse is detected.
Irregular Heartbeat indicator. (I.H.B.)
The indicator that appears when an
irregular heartbeat or any excessive
body movement is detected during
the measurement.
Previous measurements stored in
MEMORY.
The battery power indicator during
Full Battery measurement.
Replace all batteries with new
The battery is low when it blinks.
ones, when the indicator blinks.
Low Battery
Try the measurement again.
Unstable blood pressure due toRemain very still during the
movement during the measurement.
measurement.
The systolic and diastolic values arewithin 10 mmHg of each other.
The pressure value did not increase
Fasten the cuff correctly, andduring inflation.
try the measurement again.
The cuff is not fastened correctly.
PUL. DISPLAY ERROR The pulse is not detected correctly.
SYS.
DIA.
PUL./min.

Systolic blood pressure in mmHg
Diastolic blood pressure in mmHg
Pulse per minuteEC directive medical device label
EU-representative
Manufacturer
Date of manufacture
Class II device
WEEE label
4Symbols
SN

Function / Meaning
Refer to instruction manual/booklet
Serial number
Polarity of DC jack

Recommended Action

Operation Mode
1. Normal Measurement With Storing Data ( Refer to page 9)

Press the START button. Blood pressure is measured and data is stored within
the device. The device can store the last thirty sets of data in memory
automatically.

2. Recalling Data ( Refer to page 11)

When nothing is displayed, press and hold the
START button to display the data number.
The data number of the most recent measurement
and the data are displayed.
Stored data are automatically displayed in order fromthe last data.

Press
Data number

3. Clearing Data ( Refer to page 11)

Remove the batteries to clear all data.
Re-install them again.

Stored Data

4. Measurement With The Desired Systolic Pressure

Refer to page 10 for the measurement with the desired systolic pressure.

5

Using the Monitor
Installing / Changing The Batteries
1. Remove the battery cover.

2. Remove the used batteries and insert new batteries
into the battery compartment as shown, taking carethat the polarities (+) and (-) are correct.
3. Replace the battery cover.
Use only R6P, LR6 or AA batteries.
CAUTION
Insert the batteries as shown in the battery compartment. If not, the device will
not work.
When(LOW BATTERY mark) blinks on the display, replace all batteries withnew ones. Do not mix old and new batteries.
It may shorten the battery life, or cause the device to malfunction.
(LOW BATTERY mark) does not appear when the batteries are drained.
Battery life varies with the ambient temperature and may be shorter at low
temperatures.
Use the specified batteries only. The batteries provided with the device are fortesting monitor performance and may have a limited life.
Remove the batteries if the device is not to be used for a long time.
The batteries may leak and cause a malfunction.
The stored data are cleared when the batteries are removed.
When the AC adapter is used for measurement, memories are cleared
after pulling out the AC adapter.

Connecting The Air Hose
Insert the air connector plug
into the air socket firmly.

Air Socket
Air Connector Plug
Air Hose

Connecting The AC Adapter

Insert the AC adapter plug into the DC jack.
Then, insert the AC adapter into an electrical outlet.
The AC adapter, the model TB-233, is sold separately.

Note: When the AC adapter is pulled out,
the memories are cleared.

6

AC adapter Plug
DC Jack

Using the Monitor
Selecting The Correct Cuff

Using the correct cuff size is important for an accurate reading. If the cuff is not theproper size, the reading may yield an incorrect blood pressure value.
The arm size is printed on each cuff.
The index and proper fit range, on the cuff, tell you if you are applying the correct
cuff. (Refer to "Applying The Arm Cuff" on next page)
If the index points outside of the range, contact your local dealer to purchase a
replacement cuff.
The arm cuff is a consumable. If it becomes worn, purchase a new one.
Arm Size
Recommended Cuff Size
Catalog Number
32 cm to 45 cm
Large adult cuff
CUF-D-LA
22 cm to 32 cm
Adult cuff
CUF-D-A
Arm size: The circumference at the biceps.
Note: Model UA-621 is not designed for using a small adult cuff.

Symbols printed on the cuff.
Function / Meaning

Symbols

Recommended Action
Set the mark on the artery of theupper arm or in line with the ring
finger on the inside of the arm.

Artery position mark

REF

Index
Catalog number
Proper fit range for the adult cuff.
It's printed on the adult cuff.
Range to use the large adult cuff.
Use the large adult cuff instead ofOver range printed on the adult cuff. the adult cuff.
Proper fit range for the large adult cuff.
It's printed on the large adult cuff.
Under range printed on the adult cuff.
Range to use the adult cuff.
Use the adult cuff instead of thelarge adult cuff.
It's printed on the large adult cuff.
Lot number
Proper fit range

Large adult cuff
Proper fit range

Adult cuff
7

Using The Monitor
Applying The Arm Cuff

Do not roll up shirtsleeve tightly

1. Wrap the cuff around the upper arm, about
1 to 2 cm above the inside of the elbow, asshown.
Place the cuff directly against the skin, as
clothing may cause a faint pulse and resultin a measurement error.

Cuff

Artery position mark2. Constriction of the upper arm, caused byrolling up a shirtsleeve, may prevent
accurate readings.
3. Confirm that the index
proper fit range.

1 to 2 cm

Secure the fabricfastener firmly

points within the

Air hose
Index

and Proper fit range

How To Take Proper Measurements

For the most accurate blood pressure measurement:
Sit comfortably on a chair. Rest your arm on the table. Do not cross your legs.
Keep your feet on the floor and straighten your back.
Relax before measurement.
Place the center of the cuff at the same height as your heart.
Remain still and keep quiet during measurement.
Do not measure immediately after physical exercise or a bath. Rest before
taking the measurement.
Try to measure your blood pressure at the same time every day.

Measurement

During measurement, it is normal for the cuff to feel very tight. (Do not be alarmed)

After Measurement

After measurement, press the START button to turn off the power.
Remove the cuff and record your data.
Note: The device has an automatic power shut-off function, which turns the power
off approximately two minutes after measurement.
Allow at least three minutes between measurements pn the same person.

8Measurements
Model UA-621 is designed to detect the pulse and to inflate the cuff to a systolicpressure level automatically.
If your systolic pressure is expected to exceed 230 mmHg, read
"Measurement With The Desired Systolic Pressure" on the next page.

Normal Measurement

1. Place the cuff on the arm (preferably the left arm).
Sit quietly during measurement.

At heart level

2. Press the START button.
The average blood pressures and last data
number are displayed briefly.
Then the display changes, as indicated in the
figure at the right, as the measurement
begins. The cuff starts to inflate. It is normal
for the cuff to feel very tight. A pressure bar
indicator is displayed, as in the figure at theright, during inflation.

START button

Averaged data
Data number

Starts inflation

Note: If you wish to stop inflation at any time,press the START button again.
Pressurizing

3. When inflation is complete, deflation starts(heart mark) blinks,
automatically and theindicating that the measurement is inprogress. Once the pulse is detected, themark blinks with each pulse beat.
Note: If an appropriate pressure is not obtained,
the device starts to inflate again
automatically.
4. When the measurement is complete, thesystolic and diastolic pressure readings andpulse rate are displayed. The cuff exhausts
the remaining air and deflates completely.

Measurementin progress

Systolic pressure
Diastolic pressure
WHO classification

5. Press the START button again to turn off
the power.
Note: Model UA-621 is provided with an automatic
power shut-off function. Allow at least threeminutes between measurements on the same
person.
9

Pulse rate
Exhausts remaining
air automaticallyMeasurements
Measurement With The Desired Systolic Pressure
If your systolic pressure is expected to
exceed 230 mmHg, use this procedure.

1. Place the cuff on the arm(preferably the left arm).

At heart level
Press and hold

2. Press and hold the START button todisplay the last data number.
3. Press and hold the START button
again until a number about 30 to 40
mmHg higher than your expected
systolic pressure appears.

Last data number
Press and hold

4. Release the START button to startmeasurement, when the desired number
is reached. Then continue to measure
your blood pressure as described on theprevious page.

Inflation in progress
Release the button when
stopping inflation andstarting measurement.
Refer to the previous page formeasurement

Notes For Proper Measurement

Sit down in a comfortable position. Place the arm to be used for the measurement
on a table or other support so that the center of the cuff will be at the same height
as your heart.

Relax before taking a measurement. If you are excited or depressed by emotional
stress, the measurement will reflect this stress as a higher (or lower) than normal
blood pressure reading and the pulse reading will usually be faster than normal.
An individual's blood pressure varies constantly, depending on what you are doing
and what you have eaten. What you drink can have a very strong and rapid effecton your blood pressure.
This device bases its measurements on the heartbeat. If you have a very weak or
irregular heartbeat, the device may have difficulty determining your blood pressure.
Should the device detect a condition that is abnormal, it will stop the measurementand display an error symbol. Refer to page 4 for the description of the symbols.
This device is intended for use by adults only. Consult with your physician before
using this device on a child. A child should not use this device unattended.

10

About Memory
The device automatically stores up to thirty blood pressure and pulse
measurements in memory. Data stored in memory are assigned a data numberin the order of the newest to the oldest. The oldest data displays as "n01". The M
symbol in the upper left corner of the display indicates that you are viewing
previous data stored in memory.

Recalling Data

1. When nothing is displayed, press and hold the
START button to display the data number.
The data number of the most recent
measurement and the data are displayed.

Press and hold

2. The data are automatically displayed in turn.
3. The display will shut off automatically after alldata is displayed.
Note: If you press the START button while
recalling data, the device starts
measurement.

Clearing Data

Remove the batteries to clear all data. Re-install them again.

If there is no data stored in memory, you will see two 0s displayed
vertically followed by a blinking "A00".

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What Is An Irregular Heartbeat
Model UA-621 provides a blood pressure and pulse rate measurement evenwhen an irregular heartbeat occurs. An irregular heartbeat is defined as aheartbeat that varies by 25% from the average of all heartbeats during the bloodpressure measurement. It is important that you be relaxed, remain still and do
not talk during measurements.
Note: We recommend contacting your physician if you see thisfrequently.

indicator

Pressure Bar Indicator
The indicator monitors the progress of pressure during measurement.
Pressurizing
Releasing air

Inflation in progress

Infla

Measurement in progress

WHO Classification Indicator
Each six segments of the bar indicator
correspond to the WHO blood pressureclassification described on the next page.
WHO Classification Indicator
Severe hypertension
Moderate hypertension
Mild hypertension
High normal
NormalOptimal: The indicator displays a segment, based on
the current data, corresponding to the WHO
classification.

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Example:Moerate hypertension

Mild hypertension

High normal

About Blood Pressure
What Is Blood Pressure?

Blood pressure is the force exerted by blood against the walls of the arteries.
Systolic pressure occurs when the heart contracts. Diastolic pressure occurs
when the heart expands. Blood pressure is measured in millimeters of mercury(mmHg). One's natural blood pressure is represented by the fundamentalpressure, which is measured first thing in the morning while one is still at rest andbefore eating.

What Is Hypertension And How Is It Controlled?

Hypertension, an abnormally high arterial blood pressure, if left unattended, cancause many health problems including stroke and heart attack. Hypertension canbe controlled by altering lifestyle, avoiding stress, and with medication under adoctor’s supervision.
To prevent hypertension or keep it under control:
Do not smoke
Exercise regularly
Reduce salt and fat intake
Have regular physical checkups
Maintain proper weight

Why Measure Blood Pressure At Home?

Blood pressure measured at a clinic or doctor's office may cause apprehension
and can produce an elevated reading, 25 to 30 mmHg higher than thatmeasured at home. Home measurement reduces the effects of outside
influences on blood pressure readings, supplements the doctor's readings andprovides a more accurate, complete blood pressure history.

WHO Blood Pressure
Classification

Standards to assess high bloodpressure, without regard to age,have been established by theWorld Health Organization(WHO), as shown in the chart.

Blood Pressure Variations

An individual’s blood pressure
varies greatly on a daily andseasonal basis. It may vary by 30 to 50 mmHg
due to various conditions during the day. In
hypertensive individuals, variations are evenmore pronounced. Normally, the bloodpressure rises while at work or play and falls to
its lowest levels during sleep. So, do not be
overly concerned by the results of one
measurement.
13

Take measurements at the same time every day using the procedure describedin this manual to get to know your normal blood pressure. Regular readings givea more comprehensive blood pressure history. Be sure to note date and time
when recording your blood pressure. Consult your doctor to interpret your bloodpressure data.

Troubleshooting
Problem
Nothing appearson the display,even when the
power is turnedon.

Possible Reason
Batteries are drained.

Recommended Action
Replace all batteries with new ones.
Reinstall the batteries with negative
Battery terminals are not in and positive terminals matching
the correct position.
those indicated on the battery
compartment.
Battery voltage is too low.
(LOW BATTERY mark)The cuff does notblinks. [ If the batteries are Replace all batteries with new ones.
inflate.
drained completely, themark does not appear.]
The cuff is not fastened
Fasten the cuff correctly.
properly.
You moved your arm or
Make sure you remain very still andbody during thequiet during the measurement.
The device does measurement.
not measure.
Sit comfortably and still.
The
cuff
positionisnotReadings are too
Raise your hand so that the cuff iscorrect.
high or too low.
at the same level as your heart.
If you have a very weak or irregularheat beat, the device may havedifficulty in determining your bloodpressure.
The value is different from
Refer to “Why Measure Blood
that measured at a clinic or
Pressure At Home"
doctor’s office.
Other
Remove the batteries. Place themback properly and try themeasurement again.
Note: If the actions described above do not solve the problem, contact the dealer.
Do not attempt to open or repair this product, as any attempt to do so will
make your warranty invalid.

14

MaintenanceDo not open the device. It uses delicate electrical components and an intricate airunit that could be damaged. If you cannot fix the problem using thetroubleshooting instructions, request service from your dealer or from the A&D
service group. The A&D service group will provide technical information, spareparts and units to authorized dealers.
The device was designed and manufactured for a long service life.
However it is generally recommended to have the device inspected every 2
years, to ensure proper functioning and accuracy. Please contact either yourauthorized dealer or A&D for maintenance.

Technical DataType

UA-621

Measurement method

Oscillometric measurement

Measurement range

Pressure: 20 - 280 mmHg
Pulse:
40 - 180 beats / minute

Measurement accuracy

Pressure: ±3 mmHg
Pulse:±5%

Number of measurements

Approximately 200 measurements, when AA
manganese batteries are used, with pressure
value of 180 mmHg at room temperature of 23 °C.

Power supply

4 x 1.5V batteries (R6P, LR6 or AA)
or AC adapter (TB-233) (Not included)

Classification

Internally powered ME equipment (Supplied bybatteries) /Class II (Supplied by adapter)
Continuous operation mode

Clinical test

According to ANSI / AAMI SP-10 1987

EMC

IEC 60601-1-2: 2007

MemoryLast 30 measurements

Operating conditions+10 °C to +40 °C / 15 %RH to 85 %RH
800 hPa to 1060 hPa

Transport / Storage conditions -10 °C to +60 °C / 15 %RH to 95 %RH
Dimensions

Approx. 85 [W] x 82 [H] x 127 [D] mm

WeightApprox. 260 g, excluding the batteries

Applied part

Cuff Type BF

15

Useful life

Device:Cuff:

5 years (when used six times a day)2 years (when used six times a day)Accessory AC adapter

The adapter is to connect the device to a powersource at home.

TB-233

Please contact your local A&D dealer for purchasing.
The AC adapter is required to be inspected or
replaced periodically.

TB-233C

Input:
Output:100-240V
6V
500mA

TB-233BF

Input:
Output:

240V
6V

139°C

500mA
139°C

Accessories sold separately
Cuff
Catalog Number
CUF-D-LA
CUF-D-A

2A

2A

Cuff Size
Large adult cuff
Adult cuff

Arm Size
32 cm to 45 cm
22 cm to 32 cm

Arm size: The circumference at the biceps.
AC adapter

Catalog Number
TB-233C
TB-233BF

Plug (Outlet type)Type CType BF

Note: Specifications are subject to change without prior notice.
EMC table information is listed on our website:
http://www.aandd.jp/products/manual/medical/emc_en.pdf

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