REF

EnglishINSTRUCTION MANUALFORDIGITAL BLOOD PRESSURE MONITOR

CH-432BS

CITIZEN is a registered trade mark of Citizen Holdings Co., Japan.
CITIZEN es una marca registrada de Citizen Holdings Co., Japón.
Design and Specification are subject to change without notice.

0701

Contents
3 - GENERAL REMARKS
5 - PRECAUTIONS FOR USE AND MAINTENANCE
8 - IDENTIFICATIONS OF PARTS
10 - LOADING THE BATTERIES
11 - REMOVING THE BATTERIES
12 - USING AC ADAPTER (OPTION)
13 - MEASURING YOUR BLOOD PRESSURE
20 - KEY TO DISPLAY ICONS
21 - ABOUT “BLOOD PRESSURE”
22 - BLOOD PRESSURE Q&A
23 - BEFORE REQUESTING REPAIRS OR TESTING
24 - SPECIFICATIONS

Ensure that you have all the following components

CH-432BS

Blood pressure
monitor unit

Cuff

- Eng 2 -(for monitor)
4 AA-size
batteries

Instruction
ManualGENERAL REMARKS1.

To deflate the cuff quickly, press the “START/STOP” switch.

2.

The attached cuff is suitable for arm circumferences of 22-32 cm.

3.

When attaching the cuff, the air hose should be placed on the inside of your arm
on top of the artery.

4.

Self measurement is not therapy! In no event should you change the dosage ofyour medication prescribed by your physician.

5.

As preparation for measuring your blood pressure, you should urinate and thenremain relatively still for 10 to 15 minutes prior to measurement.

6.

Exercising, eating, drinking, smoking, etc., prior to measurement may affect theresults.

7.

Your blood pressure varies constantly throughout the day. Measurements
should be taken regularly at the same time each day.

8.

DO NOT place too much emphasis on the results of one measurement. Keep acontinuing record of your blood pressure variations. A complete picture can only
be obtained from a large number of readings.

9.

Emotional stress tends to cause your blood pressure to rise.

To obtain correct blood pressure measurements
1.

Take five or six deep breaths and then relax before measuring your bloodpressure. If you are tense when taking the measurement, you will not get a valid
reading.

2.

Your blood pressure will be elevated if you are anxious or irritated, suffering fromlack of sleep or constipation, or have just taken some exercise or eaten a meal.

3.

Wrap the cuff around your arm and tighten it so that one finger can be inserted
See page 13, 14)
between the cuff and arm. (4.

DO NOT measure your blood pressure after bathing or drinking.

5.

If you feel the need to urinate, do so before measuring your blood pressure.

6.

Measure your blood pressure where the room temperature is around 20°C. DO
NOT measure your blood pressure when it is too cold (below 10°C) or too hot(above 40°C) in the room.

7.

DO NOT try to measure your blood pressure immediately after drinking coffee or
tea or after smoking.

8.

Measure your blood pressure when you are relaxed and still. Keep the center ofthe cuff at the level of your heart and DO NOT move your arm or talk.

- Eng 3 -EnglishGeneral remarks on blood pressure and blood pressure
measurement

GENERAL REMARKS9.

DO NOT measure blood pressure when the cuff has been on your arm for a few
minutes or more. During this time, your arm will have built up a higher bloodpressure and you will not get valid reading.

10. The figure below shows the blood pressure classifications under the WHO
standards.
SYSTOLIC(mmHg)English180

Grade 3 Hypertension (severe)
Grade 2 Hypertension (moderate)

160
Grade 1 Hypertension (mild)
140
130
120

Remarks:
The graph is not exact, but
may be used as a guide inunderstanding non-invasive
blood pressure measurements.
The device is only intended foruse by adults.

High-Normal
NormalOptimal
80 85 90

100

110 DIASTOLIC(mmHg)

Definitions and Classifications of Blood Pressure Levels

Measure your blood pressure at the same time each day.
* Your blood pressure changes all the time. This means that data gathered overa long period has far more significance than data from just one measurement.
For this reason, you must measure your blood pressure on a daily basis. Ideally,
you should measure your blood pressure at the same time each day, wherever
possible.

- Eng 4 -

PRECAUTIONS FOR USE AND MAINTENANCE
1.

If you suffer from heart disease, high blood pressure or other circulatory disease,consult your physician before using the monitor.

2.

If the cuff pressure feels abnormal or you experience any other irregularity while
using the cuff, reduce the pressure immediately by pressing the “START/STOP”
switch and then consult the sales outlet where you purchased the monitor.

3.

If you think the measurement is abnormal or if measurement makes you feelunwell, discontinue use and consult your physician.

4.

Blood pressure measurement may not be possible for anyone with a weak pulse
or arrhythmia.

5.

Repeated blood pressure measurement may cause problems such ascongestion or swelling in some people.

6.

Frequently repeated blood pressure measurements will not give accurate
results. Allow an interval of about 10 minutes between measurements.

7.

If you suffer from a severe problem with blood circulation in your arms, consult
your physician before using the monitor. Failure to do so could be hazardous toyour health.

8.

Measurement may not be possible for anyone with insufficient blood flow to thearea where measurements will be taken or who suffers from a frequent irregularheartbeat. Consult your physician for advice on whether to use the monitor.

9.

DO NOT wrap the cuff around an injured arm.

10. DO NOT wrap the cuff around an arm in which a drip (intravenous infusion)is inserted, or which is being used for blood transfusion as part of medical
treatment. Doing so could result in an injury or a serious accident.
11. DO NOT use the monitor in the vicinity of flammable gases such as those used
for anaesthesia. Doing so could ignite the gases and cause an explosion.
12. DO NOT use the monitor in enriched oxygen environments such as a hospital’s
hyperbaric chamber or oxygen tent. Doing so could ignite the oxygen andcause a fire.
13. DO NOT use mobile phones near the monitor as this could result in amalfunction.
14. If you use a cardiac pacemaker, consult your physician before using the monitor.

- Eng 5 -EnglishPrecautions for use

PRECAUTIONS FOR USE AND MAINTENANCE
15. Be sure to use this unit only for measuring blood pressure. DO NOT use it for
any other purpose.
16. DO NOT use this unit on infants.
17. Blood pressure measurement may not be possible for anyone with common
arrhythmias such as atrial or ventricular premature beats or atrial fibrillation.

Maintenance Precautions
English1.

DO NOT store the blood pressure monitor in locations exposed to direct
sunlight, high temperatures (over 60°C), low temperatures (below-20°C), high relative humidity (over 95%) or excessive amounts of dust.

2.

DO NOT drop the blood pressure monitor or subject it to other shocks orvibration.

3.

Remove the batteries if the monitor will be left unused for a long period.

4.

DO NOT attempt to disassemble the monitor.

5.

DO NOT bend the cuff or the air hose excessively.

6.

If the monitor is very dirty, wipe it clean with a cloth moistened with sterilizing
alcohol or a neutral detergent. Then wipe it with a dry cloth.

7.

NEVER clean the blood pressure monitor with thinners or benzene, as this could
damage the monitor.

8.

To clean the cuff, wipe it with a moist cloth. Avoid hard rubbing, as this willcause air leakages. Take care also not to get water into the air hose.

Symbols Explanation: The CE marking is meant to provide information to market inspectors in
the EU member countries.
: Type B applied part: Refer to instruction manual before use: Appliance compliance WEEE directive: Manufacturer

Warning

The device has been tested and homologated inaccordance with EN60601-1-2 for EMC. This does
not guarantee in any way that the device will not beaffected by electromagnetic interference. Avoid using
the device in high electromagnetic environment.

- Eng 6 -

PRECAUTIONS FOR USE AND MAINTENANCE

Nature and frequency of maintenance:
This product is designed for use over an extended period of time;
however, it is generally recommended that it be inspected every two
years to ensure proper function and performance.
Please help to protect natural environment by respecting national and/or local
recycling regulations when disposing of the battery and the product at the end of
their useful live.

WEEE MARK
If you want to dispose this product, do not mix with general household
waste. There is a separate collection systems for used electronics
products in accordance with legislation under the WEEE Directive(Directive 2002/96/EC) and is effective only within European Union.

Reference European standard:
The blood pressure measuring device corresponds to regulation EN60601-1-2.
Calibration:
The blood pressure measuring device is generally recommended to have themonitor inspected every two years to ensure correct functioning and accuracy.
Please contact a distributor.

Name :
Address :CITIZEN SYSTEMS(H.K.) LIMITEDFLAT A-B, 4TH FLOOR, HUNG MOU INDUSTRIAL
BUILDING, 62 HUNG TO ROAD, KWUN TONG,
KOWLOON, HONG KONG

European Representative:
Name :
Address :WvW electronishe Geräte Vertrieb GmbH
Fintelmannstraße 20/Eingang, Martin-Heydert-Straße,
D-14109 Berlin, Germany- Eng 7 -EnglishProtect the nature environment:

IDENTIFICATION OF PARTS
Component names<Main Unit>
Systolic blood pressure display

Diastolic blood pressure/Pulse
display

EnglishAir hose socket

START/STOP Switch
w Stand-by

Pressurization setting switch(Inflation level selector)
Pressurization setting indicator- Eng 8 -

IDENTIFICATION OF PARTS

EnglishBattery cover<Cuff>Air hoseBlue marker

Air hose connector- Eng 9 -

LOADING THE BATTERIES(Batteries supplied with the unit should be loaded in compartment before you use
the blood pressure monitor.)

1

Open the cover of battery compartment.
Pressing the hook down, pull the cover toward you to open.

English

4 “AA” batteries

HookBattery
compartment

Batterycover* If the Blood pressure monitor
is left unused for an extended
period of time, the batteries
should be removed from thecompartment.

Lug (projecting section)

2 Place batteries in the compartment.
Put the batteries paying attention to the positive and negative terminal symbols
and .

- Eng 10 -

LOADING THE BATTERIES

3 Close the battery cover.

EnglishFitting the lugs of the coverat the mating recesses of thebattery compartment body, push
the hook to close the cover.

Fit the lugs (projections) at
the recesses.

REMOVING THE BATTERIES• When the icon
is displayed or nothing appears in the display, replace the oldbatteries with four new ones. All four batteries should be changed at once.
• The memory is erased if the batteries are removed for replacement. It is
recommended to make note of the data stored in memory prior to changing
batteries.
• Do not use rechargeable batteries.
• Do not use alkaline and manganese batteries together.
• The monitor is powered by the batteries provided. Note that they may not last as
long as indicated.
• When disposing of used batteries, comply with governmental regulations orenvironmental public institution’s rules that apply in your country/area.

- Eng 11 -

USING AC ADAPTER (OPTION)
Using the optional dedicated AC adapter (model: AC-230CZ) for the CITIZEN bloodpressure monitor (CH-432BS) allows you to measure your blood pressure without
having to worry about the amount of remaining charge in the batteries.
AC adapter socket

1 Insert the AC adapter plug into

the socket on the blood pressure
monitor.

English2 Plug the AC adapter into a mains
power outlet.

AC adapter plug

• If you plan to use the AC adapter for an extended period of time, remove thebatteries. If the batteries are left in the compartment, electrolyte may leak from thebatteries and cause a fault in the blood pressure monitor.
• If the AC adapter is used as the only power supply for the monitor, unplugging theAC adapter will erase the data stored in the monitor’s memory. It is recommended
that you make a note of any important data .
• When only batteries are used to supply power to the monitor, the AC adapter
should be unplugged from the monitor. Leaving the AC adapter plugged into theblood pressure monitor could cause a malfunction.

The dedicated AC adapter (model: AC-230CZ) for the CH-432BS is optional.
The AC adapter is available from retailers stocking CITIZEN digital blood pressure
monitors.

- Eng 12 -

MEASURING YOUR BLOOD PRESSURE
1Unroll the arm cuff and thread the end
through the metal hoop so that the sidewith the Velcro patch is on the outside.

2

Put the arm cuff around your arm so thatthe blue marker comes to the palm side.

3

Adjust the position of the arm cuff so that the blue marker is located in
the center of your arm and the hem of the cuff is 1 to 2 cm above yourelbow.

Blue marker

Metal hoop

* The cuff should be put on the bare arm
or over a light-weight underwear.
* If you wear a heavy-weight top, please
remove it.

- Eng 13 -English1 ATTACHING THE ARM CUFF

MEASURING YOUR BLOOD PRESSURE
Pull the end of the arm cuff
outwards so that the cuff issnug around your arm andthen secure the end to the
Velcro.

5

Place your arm on a table or the
like, so that the center of the cuff
comes to the height of your heart.

English4* Carefully place the cuff on yourarm, taking care to use thecorrect tightness. The tightness
is correct if you can readily slidea finger between the cuff andyour arm.

6

Relax your arm and lightly open
your hand, with the palm upward.

- Eng 14 -

TIPS FOR OBTAINING ACCURATE MEASUREMENTS
Your blood pressure varies according to your posture, the time of day and a range ofother factors. Ideally, you should measure your blood pressure in the same postureat the same time every day.

1

Place your arm on a table orsimilar surface with your forearm
extended.

2

It is important to have the arm cuff
level with your heart.

3

Open your hand slightly on thetable so that your palm is facing
up and your fingers are relaxed.

4

Do not move your body or talkwhile taking the measurement.

■ Measurement in a reclining posture* Relax yourself to avoid
placing pressure on
the arm cuff.

1

Lie down, facing the celling.

2

Lightly open your hand with palm up and straighten your arm.

3

Relax your body, arm and fingers.

4

Do not move your body or talk during measurement.

■ You may use your right arm to measure your blood pressure.
Blood pressure rate is likely to differ by as much as 10mmHg when measured on
the left arm instead of the right (or vice-versa). Measure your blood pressure on thesame arm each day.

- Eng 15 -English■ Taking measurements while sittingMEASURING YOUR BLOOD PRESSURE

2 Plug the air hose

Air hose socket

connector into the mainunit.

English• Plug the air hose connector
firmly into the air hosesocket on the main unit, as
illustrated.
Air hose connector

3 Set the pressurization setting value
The setting value should be
at least 30mmHg higher than
the normal systolic bloodpressure value. If your systolicblood pressure value around
130mmHg, for example, set to160.
* Use the pressurization
setting switch to select thepressurization setting, from130, 160, 200 or 250mmHg.
* The pressurization
setting indicator (the redmark) changes to matchthe movement of thepressurization setting switch.

CautionPressurization setting
indicator
Red mark

Pressurization
setting switch

Do not set a higher value than necessary. An
excessively high setting could cause conditions
such as congestion and swelling.

- Eng 16 -

MEASURING YOUR BLOOD PRESSURE

4 Place the cuff at the height of the heart.
5 Press the START/STOP switch (the yellow*

If the pressurization value exceeds 280mmHg, if pressurization feels
abnormal, or if you want to stop the measurement process, press the
START/STOP switch again. The cuff deflates, and the power turns off.
1

The measurement is displayed forapproximately two seconds.
*

2

lights during the first measurement
performed after the battery is replaced.

The cuff is pressurized according
to the chosen pressurization setting
value.
* If the unit judges that pressurization
is insufficient, it automatically
repressurizes to the next higher
pressurization value.If it is stillinsufficient, “Err 1” is displayed andmeasurement is cancelled. Reset thepressurization setting value according
to step 3, then press the START/STOP
switch again.

- Eng 17 -Englishswitch).

MEASURING YOUR BLOOD PRESSURE
Once pressurization is complete,
lights andthere is a pause before
measurement begins automatically.

4

flashes each time a pulse iscounted, and the pressure value
is displayed on the diastolic bloodpressure display.

5

Once measurement is complete, thecuff deflates and the measurement
results (systolic/diastolic bloodpressure values, pulse) are displayed.

English3* Systolic/diastolic blood pressure values(two seconds) and pulse (one second)are displayed alternately.
* Provided there is no error in themeasurement results, they are storedautomatically.

- Eng 18 -

MEASURING YOUR BLOOD PRESSURE

6 Finishing measurement.

START/STOP Switch* When you want to stop measurement,press the “START/STOP” switch. The
cuff is deflated and measurement
stops.

AUTOMATIC POWER OFF FEATURE• After taking the blood pressure measurement, pressing the “START/STOP” switch
will turn the monitor off. However, if you do not press the switch, the monitor’sAuto OFF function will automatically turn the monitor off after 3 minutes.

- Eng 19 -English• Press the “START/STOP” switch toturn the monitor off.

KEY TO DISPLAY ICONSEnglishIcon displayed

Condition/Cause

Displayed during
measurement.

Lit

Measurement is under way.

Flashing

Pulse detected.

Displayed during
measurement.

“PUL Err” is displayed when the pulse
value is below 40 or above 181.

If any of the following marks is displayed, take the specified action, thenrepeat the operation.
Icon displayed

Condition/Cause

Corrective action• Insufficient pressure.
• Appears when the
blood-pressure could
not be measured
accurately.

Apply cuff properly andmeasure again.

The pressure is 281
mmHg or higher.

If the pressure does not
automatically decline
during measurement,
immediately press the“START/STOP” switch
and turn the unit off. To
take the measurement
again, refer to P.16
and correctly re-applypressure.

Appears when thebatteries are running low.

Replace the batteries.

Detected problem in thedevice.

Contact the vendor.

- Eng 20 -

ABOUT “BLOOD PRESSURE”
What is blood pressure?
The heart is a pump that circulates blood throughout your body. Blood is pumped
from the heart at a constant pressure into arteries. This pressure is called thearterial blood pressure and represents, in general terms, your blood pressure. Bloodpressure is indicated by several kinds of pressures, including the systolic pressurethat occurs when the heart pumps blood, and the diastolic pressure that occurs
when blood returns to the heart.
(Diastolic)ArteryArteryLeft atrium

Left atrium
Left
ventricle

English(Systolic)

The artery wall
expands.
Contraction

Normal state is restored
to the artery wall.

Leftventricle

DilationYour blood pressure changes all the time.
Your blood pressure differs according to your age, gender and a range of otherfactors. It is likely to be affected by your biorhythm during the day and by yourposture, physical activities, mental activities, level of stress and even by the airtemperature. The blood pressure of a healthy person generally varies within a day.

Blood pressure value (mmHg)[Example of blood pressure variations within a day]Systolic bloodpressure

160
140
120
100
80
60
40

Sleeping
12 13 14 15 16 17 18 19 20 21 22 23 24 1

2

3

4

5

6

7

8

Diastolic bloodpressure
9 10 11

Time of day(Blood pressure values measured at five-minute intervals through the day)● Bevan AT, Honour AJ, Stott FH. Clin Sci 1969;36:329–44.

- Eng 21 -

BLOOD PRESSURE Q&A
Q Why is the blood pressure measured at home different from that measured by thephysician or at a hospital?

A Your blood pressure may vary due to exercise, the ambient temperature or yourmental state. When you have a physician or nurse measure your blood pressure, thepressure value is likely to be 10 to 20 mmHg higher than usual due to anxiety and/or
stress. Knowing what affects your blood pressure helps you to better monitor yourhealth.

EnglishQ Why does the blood pressure obtained vary with measurement?
A Our blood pressure is adjusted by automatic nerve function. Blood pressure differswith every heart beat. We are likely to think that our blood pressure is constant, but
it varies if you take measurements in repetition. Blood pressure is susceptible to thetime of day, such as morning and afternoon, season and atmospheric temperature.
In addition, blood pressure is easily affected by mental stress or emotional ups anddowns. It tends to increase when you feel tension or decrease when you are relaxed.

Q What is the benefit of measuring my blood pressure at home?
A Blood pressure measurements taken at home give reliable data as they can betaken when you are in a stable and relaxed condition. Physicians place considerable
importance on blood pressure measurements taken at home. You should measure
your blood pressure at the same time each day and record the variations in your bloodpressure.

Always consult your physician for an interpretation of your blood pressure
readings and to determine the proper treatment.

- Eng 22 -

BEFORE REQUESTING REPAIRS OR TESTING
Make sure to check the following before sending your blood pressure monitor away
to be tested or repaired.
ChecksResponse

Check whether thebatteries are dead.

Replace all the batteries
with new ones.

Check whether thebatteries are installed theright way round ( andoriented correctly).

Load the batteries in thecorrect direction.

No measurements canbe taken.

Check whether themeasurement icon
displayed.

Attach the arm cuff
properly.

isCheck whether the arm
cuff is applied correctly.
Did you stay calm during
measurement?

Measure your bloodpressure again, making
sure to remain still.

Note that blood pressure measurement may not be
possible for someone with an extremely weak pulse
or cardiac arrhythmia (irregular pulse).
Your blood pressure readings are abnormally high or
low compared with those taken in hospital.
Other phenomena

See page 22.
Remove the batteries fromthe unit and change themwith new ones.

- Eng 23 -EnglishProblem

Display stays blank when
you press the “START/STOP” switch.

SPECIFICATIONSEnglishModel Number:
Measurement system:
Measurement Localization
Cuff:
Arm circumference range:
Pressure
Measurement range:
Pulse
Pressure
Accuracy:
Pulse
Pressure
Pulse
LCD displays:
Icons
Switch:Inflation:
Pressurization setting:Deflation:
Rated voltage:
Exhaust:Power supply:
Alkaline
Manganese
Automatic Power Off function:
Dimensions:
Weight:Temperature
Operating conditions:
Humidity
Temperature
Storage conditions:
Humidity
Electric shock protection:
Safety Classification:
Battery duration:

Accessories

CH-432BS
Oscillometric method
Upper Arm
Soft cuff
22.0 to 32.0 cm
0 to 280 mmHg
40 to 180 pulse/min±3 mmHg±5% of reading
3 digits
3 digits: Measurement icon,:Battery icon
2 (START/STOP, Pressurization setting)Automatic inflation by internal pump
Use the pressurization setting switch to selectthe pressurization setting, from 130, 160, 200
or 250mmHg.
Automatic speed deflation system controlled byinternal electromagnetic valve.
3W (: direct current)
6V DC
Electromagnetic quick exhaust valve
4 AA batteries (R6P, LR6) or optional AC/DC
adapter (6V DC, 0.6A)
Approx. 1000 times(160 mmHg, once/day,
23°C)
Approx. 300 times
Approx. 3 min. (after activated)
129(W) x 55(H) x 119(D) mm
Approx. 240g w/o batteries cuff: approx. 150g
10°C to 40°C
30% to 85% RH-20°C to 60°C
10% to 95%RH
Internal power unit
Type B Equipment
Set includes a cuff, 4 AA batteries (R6P) for themonitor, Instruction Manual.

- Eng 24 -

REF

EnglishINSTRUCTION MANUALFORDIGITAL BLOOD PRESSURE MONITOR

CH-432BS

CITIZEN is a registered trade mark of Citizen Holdings Co., Japan.
CITIZEN es una marca registrada de Citizen Holdings Co., Japón.
Design and Specification are subject to change without notice.

0701