Citizen REF CH-456 Instruction Manual

English

INSTRUCTION MANUAL

FOR

CITIZEN SELF-STORING

BLOOD PRESSURE ARM MONITOR

REF CH-456

1101

English

Español

Português

Deutsch

Italiano

Français

中国语

English

INSTRUCTION MANUAL

FOR

CITIZEN SELF-STORING

BLOOD PRESSURE ARM MONITOR

REF

CH-456

1101

English

Español

Português

Deutsch

Italiano

Français

中国语

- Eng 2 -

Ensure that you have all the following components

Contents

3 - GENERAL REMARKS
5 - PRECAUTIONS FOR USE AND MAINTENANCE
8 - IDENTIFICATION OF PARTS
10 - LOADING THE BATTERIES
12 - USING AC ADAPTER (OPTION)
13 - TIME ADJUSTMENT
15 - MEASURING YOUR BLOOD PRESSURE
20 - TIPS FOR OBTAINING ACCURATE MEASUREMENTS
21 - CALLING UP THE DATA STORED IN MEMORY
23 - KEY TO DISPLAY ICONS
24 - ABOUT “BLOOD PRESSURE”
25 - BLOOD PRESSURE Q&A
26 - BEFORE REQUESTING REPAIRS OR TESTING
27 - SPECIFICATIONS

Blood pressure

monitor unit

Adult Cuff (for monitor)

4 AA-size

batteries

Instruction

Manual

• AC Adapter

[OPTION]

- Eng 3 -

English

General remarks on blood pressure and blood pressure
measurement

1. To defl ate the cuff quickly, press the “START/STOP” switch.

2. Before applying your blood pressure cuff, be sure you have selected the
appropriate size cuff:
Adult Cuff fi ts arm circumference: 22-32 cm

3. When attaching the cuff, adjust the position of the cuff so that the blue marker
is located in the center of your arm and the hem of the cuff is 1-2 cm for Adult
Cuff above your elbow.

4. The monitor is not intended to be a diagnostic device, because it is intended for
home use.

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

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

7. Exercising, eating, drinking, smoking, etc., prior to measurement may affect the
results.

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

9. 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.

10. 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. (

See page 16)

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.

GENERAL REMARKS

- Eng 4 -

English

GENERAL REMARKS

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.

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. If the Body Movement Indicator or Irregular Heartbeat (IHB)Indicator is

displayed, relax and measure your blood pressure again. If the Irregular
Heartbeat (IHB) Indicator appears frequently, you are advised to consult a
doctor about your health condition. (

See page 19)

11. The fi gure below shows the blood pressure classifi cations under the WHO

standards.

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.

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.

- Eng 5 -

English

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. Infl ating to a higher pressure may result in bruising where the cuff is applied.
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, detach the cuff or unplug the air hose connector from the monitor 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 and prolonged overinfl ation 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 1 minute 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.

15. Be sure to use this unit only for measuring blood pressure. DO NOT use it for
any other purpose.

PRECAUTIONS FOR USE AND MAINTENANCE

- Eng 6 -

English

PRECAUTIONS FOR USE AND MAINTENANCE

16. Be sure to use only our authorized parts and accessories. Parts and

accessories not approved for use with the device may damage the unit.

17. DO NOT use this unit on infants.

18. 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

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 the cuff and 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 or the cuff.

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 the EU member countries.

: Type B applied part

: Refer to instruction manual before use

: Appliance compliance WEEE directive

Pb

: Accumulators and battery packs for separate collection

: Manufacturer

Warning

The device has been tested and homologated
in accordance with EN60601-1-2 for EMC. This
does 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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English

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.

Information for Users on Collection and Disposal of used Batteries.

The symbol in this information sheet means that used batteries should not be mixed with
general household waste.
For proper treatment, recovery and recycling of used batteries, please take them to
applicable collection points.
For more information about collection and recycling of batteries, please contact your local
municipality, your waste disposal service or the point of sale where you purchased the items.

Information on Disposal in other Countries outside the European Union.

This symbol is only valid in the European Union.
If you wish to discard used batteries, please contact your local authorities or dealer and ask for the
correct method of disposal.

Note for the battery symbol.

The symbol might be used in combination with a chemical symbol. In this case it complies with the
requirement set by the Directive for the chemical involved.

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 JAPAN CO., LTD
Address : 6-1-12, Tanashi-cho, Nishi-Tokyo-shi,

Tokyo 188-8511, Japan

European Representative:

Name : WvW electronishe Geräte Vertrieb GmbH
Address : Fintelmannstraße 20/Eingang, Martin-Heydert-Straße,

D-14109 Berlin, Germany

• For technical data, please contact our European Representative

Pb

- Eng 8 -

English

<Main Unit>

Component names

IDENTIFICATION OF PARTS

Air hose socket

START/STOP Switch
a Stand-by

MEMORY Switch

Display*

*See page 9 for the display icons.
**See page 10 for the Battery compartment

Cuff holding
pocket

Date/Time Set Switch

Adjust Switch

Battery compartment**

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English

IDENTIFICATION OF PARTS

Air hose connector

Air hose

Blue marker

<Cuff>

Metal hoop

<Display>

Systolic blood pressure
display

Diastolic blood pressure
display

Battery icon

Memory icon

Body Movement
Indicator*

Irregular Heartbeat (IHB)
Indicator*

Pulse display

* See page 19 for the Body Movement Indicator and Irregular Heartbeat (IHB)

Indicator.

Date display Time display

Average Indicator

- Eng 10 -

English

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

LOADING THE BATTERIES

1 Open the cover of battery compartment.

Pressing the hook down, pull the cover toward you to open.

2 Place batteries in the compartment.

Put the batteries paying attention to the positive and negative terminal symbols

m and ,.

Battery cover

Lug (projecting section)

Battery
compartment

4 “AA” batteries

* If the Blood pressure monitor is left unused

for an extended period of time, the batteries
should be removed from the compartment.

Hook

* When you install the batteries for the fi rst time after purchase, the monitor will

display the clock setting screen. Follow step 2 and subsequent steps in TIME
ADJUSTMENT (

See page 13) to set the clock.

- Eng 11 -

English

LOADING THE BATTERIES

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 remaining capacity of the batteries is inadequate.

• Adjust the clock after changing the batteries.

• The data stored in the memory is not deleted by changing the batteries.

• Do not use rechargeable batteries.

• Do not use alkaline (LR6) and manganese (R6P) batteries together.

• Batteries included are for demonstration purposes only. Battery life may be

shorter than specifi ed.

• When disposing of used batteries, comply with governmental regulations or

environmental public institution’s rules that apply in your country/area.

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.

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English

USING AC ADAPTER (OPTION)

2 Plug the AC adapter into a mains power outlet.

1 Insert the AC adapter plug into the socket on the blood pressure

monitor.

Using the optional dedicated AC adapter (model:AC-230CZ) for the CITIZEN blood
pressure monitor (CH-456) allows you to measure your blood pressure without
having to worry about the amount of remaining charge in the batteries.)

AC adapter socket

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.

• 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.

The dedicated AC adapter (model:AC-230CZ) for the CH-456 is optional.
The AC adapter is available from retailers stocking CITIZEN digital blood
pressure monitors.

- Eng 13 -

English

TIME ADJUSTMENT

Setting the clock enables measurements to be accurately recorded.

The monitor can record the date and time of measurement as well as the
measurement results. Be sure to set the clock after inserting the batteries. Set the
date fi rst and then the time.

1 Press and hold the Date/Time Set switch for approximately two

seconds.

The “year” indicator blinks.

2 Press the Adjust switch to adjust the year.

Press

Adjust switch to increase the number by one.

(The year can be adjusted in the range of 2011-2040.)

Press

Date/Time Set switch to confi rm the setting.

The “year” is set and the “month” indicator blinks.

3 Press the Adjust switch to adjust the “month”.

Press Adjust switch to increase the number by one.

Press

Date/Time Set switch to confi rm the setting.

The “month” is set and the “day” indicator blinks.

4 Press the Adjust switch to adjust the “day”.

Press Adjust switch to increase the number by one.

Press

Date/Time Set switch to confi rm the setting.

The “day” is set and the “hour” indicator blinks.

* You can fast-forward the numbers in display by

pressing and holding

Adjust switch.

* When you install the batteries for the fi rst time, the monitor will display the

clock setting screen. You do not need to perform step 1. Proceed to step 2.
If you set the clock and change its setting, start from step 1.

- Eng 14 -

English

TIME ADJUSTMENT

5 Press the Adjust switch to adjust the “hour”.

Press

Adjust switch to increase the number by one.

Press

Date/Time Set switch to confi rm the setting.

The “hour” is set and the “minutes” indicator blinks.

6 Press the Adjust switch to adjust the “minutes”.

Press

Adjust switch to increase the number by one.

Press

Date/Time Set switch to confi rm the setting.

The “minutes” are set and “12” (12-hour format) blinks.

7 Press the Adjust switch to adjust the “time format”.

The setting switches between 12-hour format (12H) and

24-hour format (24H) each time

Adjust switch is

pressed.

Press

Date/Time Set switch to confi rm the setting

(12H or 24H).

When clock adjustment is completed, the set date and

time appear briefl y and then the display turns off.

* The “minute” count (from 0 seconds) starts when

Date/Time Set switch is pressed.
The accurate time can be set by pressing

Date/

Time Set switch.

- Eng 15 -

English

3 Adjust the position of the cuff so that the blue marker is located in

the center of your arm and the hem of the cuff is 1-2 cm for Adult Cuff
above your elbow.

MEASURING YOUR BLOOD PRESSURE

* 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.

2 Put the cuff around your arm so that the

blue marker comes to the palm side.

Metal hoop

1 Unroll the cuff and thread the end through

the metal hoop so that the side with the
hook-and-loop fastener is on the outside.

1

ATTACHING THE CUFF

Before applying your blood pressure cuff, be sure you have selected the
appropriate size cuff:

Adult Cuff fi ts arm circumference: 22-32 cm

Blue marker

Blue marker

1-2 cm for Adult Cuff

- Eng 16 -

English

MEASURING YOUR BLOOD PRESSURE

4 Pull the end of the cuff

outwards so that the cuff is
snug around your arm and
then secure the end to the
hook-and-loop fastener.

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.

- Eng 17 -

English

MEASURING YOUR BLOOD PRESSURE

• Plug the air hose connector fi rmly
into the air hose socket on the
main unit, as illustrated.

Plug the air hose
connector into the main
unit.

Place the cuff at the height of the heart.

( See page 20)

2

3

Air hose socketAir hose connector

Press the START/STOP switch (the blue switch).

4

* 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.

• All digits displayed is an initial display, indicating that the monitor is
functioning normal.

• The cuff is pressurized automatically.

* If the unit judges that pressurization is insuffi cient, it automatically

repressurizes.

* is displayed when a pulse is detected.

* When you want to stop measurement, press the

“START/STOP” switch. The cuff is defl ated and
measurement stops.

- Eng 18 -

English

MEASURING YOUR BLOOD PRESSURE

[Manual pressurization]

• If your systolic blood pressure is expected to
exceed 200mmHg, use Manual Pressurization
when taking a measurement.

• Keep “START/STOP” switch held pressed until
the pressure value you want to stop pressurization
is reached (approximately 40mmHg higher
than the Systolic blood pressure). You can stop
pressurization by the unit by releasing the switch at the
aforementioned value is reached.

The upper pressure limit is 280mmHg

START/STOP Switch

The measurement results are displayed.

5

Finishing measurement.

• Press the “START/STOP” switch to turn the monitor off.

6

START/STOP Switch

• Once measurement is complete, the
cuff defl ates and the measurement
results (systolic/diastolic blood
pressure values, pulse) are displayed.

* Provided there is no error in the

measurement results, they are
stored automatically.

Body Movement
Indicator
(

See page 19)

Irregular Heartbeat
(IHB) Indicator
(

See page 19)

- Eng 19 -

English

The Body Movement Indicator is displayed on the
measurement results display if you move your hand or
arm during measurement, causing a substantial pressure
change to be detected.

• If the Body Movement Indicator is displayed, measure
your blood pressure again.

If an irregular heartbeat is detected during measurement,
the Irregular Heartbeat (IHB) Indicator is displayed after
measurement is completed.
An irregular heart beat is defi ned as a heart beat that
varies by ±25% from the middle of 5 heart beat intervals
during the blood pressure measurement.

• Measurement may not be correct if your heartbeat fl uctuates
greatly during measurement. If the Irregular Heartbeat (IHB)
Indicator is displayed, measure your blood pressure again.

Caution

If the Irregular Heartbeat (IHB) Indicator appears
frequently, you are advised to consult a doctor
about your health condition.

MEASURING YOUR BLOOD PRESSURE

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.

- Eng 20 -

English

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 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

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.

* Relax yourself

to avoid placing
pressure on the cuff.

■ You may use your right arm to measure your blood pressure.

Blood pressure value is likely to differ by as much as 10mmHg when measured on
the right arm instead of the left (or vice-versa). Measure your blood pressure on the
same arm each day.

- Eng 21 -

English

CALLING UP THE DATA STORED IN MEMORY

90 measurement results can be stored in Memory.
The average value is calculated automatically to help you manage your daily health.

1 Press the Memory switch once.

Memory switch

* Example of display when the Memory switch is pressed.

indicating the average value appears at the bottom of the display. Then the

average value, based on the last three measurements, is displayed.
* ( and the average value do not appear if there are two or fewermeasurements

stored in memory.)

- Eng 22 -

English

CALLING UP THE DATA STORED IN MEMORY

2 If you press the Memory switch again, past measurement data are

displayed.

Each time you press the switch, the measurement data are displayed in order
from the most recent to the oldest.
* You can fast-forward the data numbers in display by pressing and holding the

Memory switch.

* Example of display when the

Memory switch is pressed.

• The value stored in memory is numbered in the order of measurements. For
example, when 90 sets of data are stored in memory, the data number 1
represents the latest data.

Data number: 1, 2, 3, ... ... 89, 90

©

The latest data

©

The earliest data

1 While pressing the Memory switch, press and hold the “START/

STOP” switch for more than 3 seconds.

All data stored in Memory will be deleted.

Press and

hold for 3

seconds

Deleted

A message
saying all the
data have been
deleted from
the memory is
displayed.

HOW TO DELETE THE DATA

The data number is displayed
before the measurement results.

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English

KEY TO DISPLAY ICONS

DISPLAY MARK CONDITION/CAUSE

CORRECTIVE ACTION

Appears when the cuff is
attached too loose.

Attach the cuff properly and
measure again.
(

See page 15 “ATTACHING

THE CUFF”)

Appears when the cuff is not
attached correctly and the pulse
cannot be detected.

Appears when the pressure is
300mmHg or higher.

or

Appears when the batteries have
run out.

Replace the batteries. (
See page 11 “REMOVING THE
BATTERIES”.)

Appears when the pulse rate
falls outside the measuring range
(below 39 beats/min. or above
181 beats/min.)

Attach the cuff properly again.
Take deep breaths to relax, and
measure again. (

See page
20 “TIPS FOR OBTAINING
ACCURATE MEASUREMENT”.)

The unit does not function
properly.

Contact the store where it
was purchased or your local
service center. ( See page
26 “BEFORE REQUESTING

REPAIRS OR TESTING”.)

- Eng 24 -

English

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)

Artery Artery

Left atrium

Left
ventricle

Left atrium

Left
ventricle

Dilation

The artery wall expands.

Contraction

Normal state is restored
to the artery wall.

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.

Blood pressure value (mmHg)

160

140

120

100

80

60

40

Time of day

12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11

Systolic blood

pressure

Diastolic blood

pressure

Sleeping

(Blood pressure values measured at fi ve-minute intervals through the day)

E Bevan AT, Honour AJ, Stott FH. Clin Sci 1969;36:329–44.

[Example of blood pressure variations within a day]

- Eng 25 -

English

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
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.

BLOOD PRESSURE Q&A

- Eng 26 -

English

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.

Replace all the batteries
with new ones.

Check whether the
batteries are installed the
right way round (m and
, oriented correctly).

Load the batteries in the
correct direction.

No measurements can
be taken.

Check whether the
measurement icon

is

displayed.

Attach the cuff properly.

Check whether the cuff is
attached correctly.

Did you stay calm during
measurement?

Measure your blood
pressure 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.

See page 25.

Other phenomena

Remove the batteries from
the unit and change them
with new ones.

BEFORE REQUESTING REPAIRS OR TESTING

* 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.

- Eng 27 -

English

SPECIFICATIONS

Model Number: CH-456
Measurement system: Oscillometric method
Measurement Localization Upper Arm
Cuff: Soft cuff
Adult cuff circumference range: 22.0 – 32.0 cm

Measurement range:

Pressure 0 to 280 mmHg
Pulse 40 to 180 pulse/min

Accuracy:

Pressure ±3 mmHg
Pulse ±5% of reading

LCD displays:

Pressure 3 digits
Pulse 3 digits

Icons

: Measurement icon

: Battery icon
: Irregular Heartbeat (IHB) Indicator
: Body Movement Indicator

: Memory icon
: Average indicator

Switch:

4 (

, ,

START/STOP, MEMORY)
Infl ation: Automatic Infl ation by internal pump
Defl ation: Automatic speed defl ation system.

Rated voltage: 6V DC 3W ( : direct current)
Exhaust: Electromagnetic quick exhaust valve
Power supply: 4 AA batteries (R6P, LR6)

Battery duration:

Alkaline Approx. 500 times

(170 mmHg, once/day,
23°C, Use Adult Cuff)

Manganese Approx. 150 times

Automatic Power Off function: Approx. 3 min. (after activated)
Main Unit Dimensions: 105 (W) X 166 (H) X 122 (D) mm
Cuff Size: Adult Cuff Approx. 144 x 492 mm

Weight:

Unit: Approx. 390g w/o batteries
Adult cuff: Approx. 130g

Operating conditions:

Temperature 10°C – 40°C
Humidity 30% to 85% RH

Storage conditions:

Temperature -20°C – 60°C
Humidity 10% to 95%RH

Electric shock protection: Internal power unit
Safety Classifi cation:

Type B Equipment
Mode of operation: Continuous operation
Memory: 90 readings, Average of last 3 readings

Accessories:

Set includes an Adult cuff, 4 AA batteries (R6P) for
the monitor, Instruction Manual

Optional Accessories: AC Adapter

Design and Specification are subject to change without notice.

CITIZEN is a registered trade mark of Citizen Holdings Co., Ltd., Japan.

CITIZEN es una marca registrada de Citizen Holdings Co., Ltd., Japón.

CITIZEN é uma marca comercial da Citizen Holdings Co., Ltd., Japão.

CITIZEN ist eine eingetragene Marke von Citizen Holdings Co., Ltd., Japan.

CITIZEN è un marchio registrato di Citizen Holdings CO. Ltd., Giappone.

CITIZEN est une marque commerciale de Citizen Holdings Co., Ltd., Japon.