INSTRUCTION MANUAL
FOR
DIGITAL BLOOD PRESSURE MONITOR
REF CH-432BS
English
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 (for monitor)
4 AA-size
batteries
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Instruction
Manual
GENERAL REMARKS
General remarks on blood pressure and blood pressure
measurement
1. To defl ate 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 of
your medication prescribed by your physician.
5. As preparation for measuring your blood pressure, you should urinate and then
remain relatively still for 10 to 15 minutes prior to measurement.
6. Exercising, eating, drinking, smoking, etc., prior to measurement may affect the
results.
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 a
continuing 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 fi ve or six deep breaths and then relax before measuring your blood
pressure. 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 from
lack 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 fi nger can be inserted
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 of
the cuff at the level of your heart and DO NOT move your arm or talk.
See page 13, 14)
English
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GENERAL REMARKS
9. 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 blood
pressure and you will not get valid reading.
10. The fi gure below shows the blood pressure classifi cations under the WHO
standards.
SYSTOLIC
(mmHg)
English
Grade 3 Hypertension (severe)
180
Grade 2 Hypertension (moderate)
160
Grade 1 Hypertension (mild)
140
High-Normal
130
Normal
120
Optimal
80 85 90 100 110 DIASTOLIC
Remarks:
The graph is not exact, but
may be used as a guide in
understanding non-invasive
blood pressure measurements.
The device is only intended for
use by adults.
(mmHg)
Defi nitions and Classifi cations 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 over
a long period has far more signifi cance 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.
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PRECAUTIONS FOR USE AND MAINTENANCE
Precautions for use
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 feel
unwell, 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 as
congestion 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 to
your health.
8. Measurement may not be possible for anyone with insuffi cient blood fl ow to the
area where measurements will be taken or who suffers from a frequent irregular
heartbeat. 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 fl ammable 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 and
cause a fi re.
13. DO NOT use mobile phones near the monitor as this could result in a
malfunction.
14. If you use a cardiac pacemaker, consult your physician before using the monitor.
English
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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 fi brillation.
Maintenance Precautions
English
1. 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 or
vibration.
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 will
cause 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
: Refer to instruction manual before use
the EU member countries.
: Type B applied part
: Appliance compliance WEEE directive
: Manufacturer
The device has been tested and homologated in
accordance with EN60601-1-2 for EMC. This does
Warning
not guarantee in any way that the device will not be
affected by electromagnetic interference. Avoid using
the device in high electromagnetic environment.
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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.
Protect the nature environment:
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 the
monitor inspected every two years to ensure correct functioning and accuracy.
Please contact a distributor.
Name : CITIZEN SYSTEMS(H.K.) LIMITED
Address : FLAT A-B, 4TH FLOOR, HUNG MOU INDUSTRIAL
BUILDING, 62 HUNG TO ROAD, KWUN TONG,
KOWLOON, HONG KONG
European Representative:
Name : WvW electronishe Geräte Vertrieb GmbH
Address : Fintelmannstraße 20/Eingang, Martin-Heydert-Straße,
D-14109 Berlin, Germany
English
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IDENTIFICATION OF PARTS
Component names
<Main Unit>
English
Systolic blood pressure display
Air hose socket
Pressurization setting switch
(Infl ation level selector)
Pressurization setting indicator
Diastolic blood pressure/Pulse
display
START/STOP Switch
w Stand-by
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<Cuff>
IDENTIFICATION OF PARTS
Battery cover
English
Air hose
Blue marker
Air hose connector
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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
Battery
cover
Hook
Lug (projecting section)
* If the Blood pressure monitor
is left unused for an extended
period of time, the batteries
should be removed from the
compartment.
Battery
compartment
2 Place batteries in the compartment.
Put the batteries paying attention to the positive and negative terminal symbols
and .
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LOADING THE BATTERIES
3 Close the battery cover.
Fitting the lugs of the cover
at the mating recesses of the
battery 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 old
batteries 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 or
environmental public institution’s rules that apply in your country/area.
English
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USING AC ADAPTER (OPTION)
Using the optional dedicated AC adapter (model: AC-230CZ) for the CITIZEN blood
pressure monitor (CH-432BS) allows you to measure your blood pressure without
having to worry about the amount of remaining charge in the batteries.
1 Insert the AC adapter plug into
the socket on the blood pressure
English
monitor.
2 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 the
batteries. If the batteries are left in the compartment, electrolyte may leak from the
batteries and cause a fault in the blood pressure monitor.
• If the AC adapter is used as the only power supply for the monitor, unplugging the
AC 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 the
blood pressure monitor could cause a malfunction.
AC adapter socket
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.
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MEASURING YOUR BLOOD PRESSURE
1 ATTACHING THE ARM CUFF
1 Unroll the arm cuff and thread the end
through the metal hoop so that the side
with the Velcro patch is on the outside.
2 Put the arm cuff around your arm so that
the blue marker comes to the palm side.
Metal hoop
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 your
elbow.
* The cuff should be put on the bare arm
Blue marker
or over a light-weight underwear.
* If you wear a heavy-weight top, please
remove it.
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English
MEASURING YOUR BLOOD PRESSURE
4 Pull the end of the arm cuff
outwards so that the cuff is
snug around your arm and
then secure the end to the
Velcro.
English
5 Place your arm on a table or the
like, so that the center of the cuff
comes to the height of your heart.
* Carefully place the cuff on your
arm, taking care to use the
correct tightness. The tightness
is correct if you can readily slide
a fi nger between the cuff and
your arm.
6 Relax your arm and lightly open
your hand, with the palm upward.
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TIPS FOR OBTAINING ACCURATE MEASUREMENTS
Your blood pressure varies according to your posture, the time of day and a range of
other factors. Ideally, you should measure your blood pressure in the same posture
at the same time every day.
■ Taking measurements while sitting
1 Place your arm on a table or
similar surface with your forearm
extended.
2 It is important to have the arm cuff
level with your heart.
3 Open your hand slightly on the
table so that your palm is facing
up and your fi ngers are relaxed.
4 Do not move your body or talk
while 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 fi ngers.
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 the
same arm each day.
English
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MEASURING YOUR BLOOD PRESSURE
2 Plug the air hose
Air hose socket
connector into the main
unit.
• Plug the air hose connector
fi rmly into the air hose
English
socket 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 blood
pressure value. If your systolic
blood pressure value around
130mmHg, for example, set to
160.
* Use the pressurization
setting switch to select the
pressurization setting, from
130, 160, 200 or 250mmHg.
* The pressurization
setting indicator (the red
mark) changes to match
the movement of the
pressurization setting switch.
Do not set a higher value than necessary. An
Caution
excessively high setting could cause conditions
such as congestion and swelling.
Pressurization setting
indicator
Red mark
Pressurization
setting switch
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MEASURING YOUR BLOOD PRESSURE
4 Place the cuff at the height of the heart.
5 Press the START/STOP switch (the yellow
switch).
* 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 defl ates, and the power turns off.
1 The measurement is displayed for
approximately two seconds.
* lights during the fi rst measurement
performed after the battery is replaced.
2 The cuff is pressurized according
to the chosen pressurization setting
value.
* If the unit judges that pressurization
is insuffi cient, it automatically
repressurizes to the next higher
pressurization value.If it is still
insuffi cient, “Err 1” is displayed and
measurement is cancelled. Reset the
pressurization setting value according
to step 3, then press the START/STOP
switch again.
English
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MEASURING YOUR BLOOD PRESSURE
3 Once pressurization is complete,
there is a pause before
measurement begins automatically.
fl ashes each time a pulse is
4
English
counted, and the pressure value
is displayed on the diastolic blood
pressure display.
5 Once measurement is complete, the
cuff defl ates and the measurement
results (systolic/diastolic blood
pressure values, pulse) are displayed.
* Systolic/diastolic blood pressure values
(two seconds) and pulse (one second)
are displayed alternately.
* Provided there is no error in the
measurement results, they are stored
automatically.
lights and
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MEASURING YOUR BLOOD PRESSURE
6 Finishing measurement.
• Press the “START/STOP” switch to
turn the monitor off.
* When you want to stop measurement,
press the “START/STOP” switch. The
cuff is defl ated and measurement
START/STOP Switch
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’s
Auto OFF function will automatically turn the monitor off after 3 minutes.
English
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KEY TO DISPLAY ICONS
English
If any of the following marks is displayed, take the specifi ed action, then
repeat the operation.
Icon displayed Condition/Cause
Displayed during
measurement.
Displayed during
measurement.
Icon displayed Condition/Cause Corrective action
• Insuffi cient pressure.
• Appears when the
blood-pressure could
not be measured
accurately.
The pressure is 281
mmHg or higher.
Appears when the
batteries are running low.
Detected problem in the
device.
Lit Measurement is under way.
Flashing Pulse detected.
“PUL Err” is displayed when the pulse
value is below 40 or above 181.
Apply cuff properly and
measure again.
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-apply
pressure.
Replace the batteries.
Contact the vendor.
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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 the
arterial blood pressure and represents, in general terms, your blood pressure. Blood
pressure is indicated by several kinds of pressures, including the systolic pressure
that occurs when the heart pumps blood, and the diastolic pressure that occurs
when blood returns to the heart.
(Systolic) (Diastolic)
Left atrium
Artery
Left atrium
Artery
English
Left
ventricle
The artery wall
expands.
Contraction
Left
ventricle
Normal state is restored
to the artery wall.
Dilation
Your blood pressure changes all the time.
Your blood pressure differs according to your age, gender and a range of other
factors. It is likely to be affected by your biorhythm during the day and by your
posture, physical activities, mental activities, level of stress and even by the air
temperature. The blood pressure of a healthy person generally varies within a day.
[Example of blood pressure variations within a day]
160
140
120
100
80
60
40
Blood pressure value (mmHg)
12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11
(Blood pressure values measured at fi ve-minute intervals through the day)
Time of day
● Bevan AT, Honour AJ, Stott FH. Clin Sci 1969;36:329–44.
Sleeping
Systolic blood
pressure
Diastolic blood
pressure
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BLOOD PRESSURE Q&A
Q Why is the blood pressure measured at home different from that measured by the
physician or at a hospital?
A Your blood pressure may vary due to exercise, the ambient temperature or your
mental state. When you have a physician or nurse measure your blood pressure, the
pressure 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 your
English
health.
Q Why does the blood pressure obtained vary with measurement?
A Our blood pressure is adjusted by automatic nerve function. Blood pressure differs
with 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 the
time of day, such as morning and afternoon, season and atmospheric temperature.
In addition, blood pressure is easily affected by mental stress or emotional ups and
downs. It tends to increase when you feel tension or decrease when you are relaxed.
Q What is the benefi t of measuring my blood pressure at home?
A Blood pressure measurements taken at home give reliable data as they can be
taken 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 blood
pressure.
Always consult your physician for an interpretation of your blood pressure
readings and to determine the proper treatment.
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BEFORE REQUESTING REPAIRS OR TESTING
Make sure to check the following before sending your blood pressure monitor away
to be tested or repaired.
Problem Checks Response
Display stays blank when
you press the “START/
STOP” switch.
Check whether the
batteries are dead.
Check whether the
batteries are installed the
right way round (
oriented correctly).
and
Replace all the batteries
with new ones.
Load the batteries in the
correct direction.
English
No measurements can
be taken.
Your blood pressure readings are abnormally high or
low compared with those taken in hospital.
Other phenomena
Check whether the
measurement icon is
displayed.
Check whether the arm
cuff is applied correctly.
Did you stay calm during
measurement?
Note that blood pressure measurement may not be
possible for someone with an extremely weak pulse
or cardiac arrhythmia (irregular pulse).
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Attach the arm cuff
properly.
Measure your blood
pressure again, making
sure to remain still.
See page 22.
Remove the batteries from
the unit and change them
with new ones.
SPECIFICATIONS
Model Number: CH-432BS
Measurement system: Oscillometric method
Measurement Localization Upper Arm
Cuff: Soft cuff
Arm circumference range: 22.0 to 32.0 cm
Measurement range:
English
Accuracy:
LCD displays:
Switch: 2 (START/STOP, Pressurization setting)
Infl ation: Automatic infl ation by internal pump
Pressurization setting:
Defl ation:
Rated voltage: 6V DC
Exhaust: Electromagnetic quick exhaust valve
Power supply:
Battery duration:
Automatic Power Off function: Approx. 3 min. (after activated)
Dimensions: 129(W) x 55(H) x 119(D) mm
Weight: Approx. 240g w/o batteries cuff: approx. 150g
Operating conditions:
Storage conditions:
Electric shock protection: Internal power unit
Safety Classifi cation:
Accessories
Pressure 0 to 280 mmHg
Pulse 40 to 180 pulse/min
Pressure ±3 mmHg
Pulse ±5% of reading
Pressure 3 digits
Pulse 3 digits
Icons
Alkaline Approx. 1000 times
Manganese Approx. 300 times
Temperature 10°C to 40°C
Humidity 30% to 85% RH
Temperature -20°C to 60°C
Humidity 10% to 95%RH
: Measurement icon, :Battery icon
Use the pressurization setting switch to select
the pressurization setting, from 130, 160, 200
or 250mmHg.
Automatic speed defl ation system controlled by
internal electromagnetic valve.
4 AA batteries (R6P, LR6) or optional AC/DC
adapter (6V DC, 0.6A)
Set includes a cuff, 4 AA batteries (R6P) for the
monitor, Instruction Manual.
3W ( : direct current)
Type B Equipment
(160 mmHg, once/day,
23°C)
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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.
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