Citizen REF CH-437C User manual

- Eng 1 -
REF CH-437C
INSTRUCTION MANUAL
FOR
DIGITAL BLOOD PRESSURE MONITOR
English
Español
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Deutsch

- Eng 2 -
General remarks on blood pressure and blood pressure measurement
1. If the cuff is to be deflated quickly, depress “POWER” switch.
2. The attached cuff is suited for an arm circumstance of 22 cm to 32 cm.
3. When attaching the cuff, the air hose should be placed on the inside of your arm on top
of the arterial.
4. Self measurement is not therapy! In no case may you change the dosage of medication
prescribed by your physician.
5. In preparation for blood pressure measurement, 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. Blood pressure varies constantly throughout the day. Measurement should be made
regularly at the same time each day.
8. DO NOT be too impressed by the results of one measurement. Keep a record of blood
pressure variations. Many reading tell a story.
9. Emotional stress may tend to cause blood pressure to rise.
For proper measure of blood pressure
1. Take a deep breath five or six times and then relax before measuring your blood
pressure. If you are tense when taking the measurement, you will not get a valid reading.
2. Blood pressure will be elevated when you are in a worrisome or irritated state, suffering
from lack of sleep or constipation, or after exercise or a meal.
3. Wrap the cuff around the arm and tighten it so that one finger may be inserted between
the cuff and arm. (See page 15)
4. DO NOT measure blood pressure after bathing or drinking.
5. When you feel like relieving yourself, you should do so before measuring your blood
pressure.
6. Measure your blood pressure where the room temperature is about 20°C. DO NOT
measure blood pressure when it is too cold (below 10°C) or too hot (above 40°C) in the
room.
GENERAL REMARKS

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English
GENERAL REMARKS
7. DO NOT try to measure blood pressure immediately after drinking coffee or tea or
smoking.
8. Measure blood pressure with a relaxed and quiet posture. 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 after the cuff has been on for a few minute, as your
arm will have built up higher blood pressure, and you will not get valid reading.
10. Next figure shows the classification of blood pressure according to WHO-standard.
Measure your blood pressure at the same time on a daily basis.
* The blood pressure changes at all times. This means that data gathered over a long
period has great significance instead of data on just one measurement. It is therefore
necessary to measure your blood pressure on a daily basis. Ideally, you should measure
your blood pressure daily at the same time as far as possible.
Remarks:
The graph is not exact,
but may be used as a
guide in understanding
non-invasive blood
pressure measurements.
The device intended for
use in adult population.
Definition and Classification of Blood Pressure Levels

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Precaution for use
1. If you suffer from heart disease, high blood pressure or other circulatory disease, please
consult your doctor first.
2. If you feel abnormal pressure of the cuff during use or any other irregularity, reduce the
pressure by immediately switching off the power or remove the batteries and consult the
sales outlet where purchased.
3. If you think the measured value is abnormal or if measuring makes you feel unwell,
discontinue use and consult your doctor.
4. Measurement of blood pressure may not be possible for someone with a weak pulse or
arrhythmia.
5. If blood pressure is measured repeatedly, congestion, swelling, etc. may occur in some
people.
6. If blood pressure is measured repeatedly, an accurate result will not be achieved. An
interval of about 10 minutes should be allowed.
7. Consult your physician before use if you suffer a severe disorder of blood circulation in
the arms. Failure to do so may cause health hazards.
8. Measurement may not be possible for someone with an insufficient blood flow in the area
to be measured or frequent irregular heartbeats. Consult your physician for judgment.
9. DO NOT wrap the arm cuff around an injured arm.
10. DO NOT wrap the arm cuff to the arm where a drip (intravenous infusion) or blood
transfusion under medical treatment. Failure to do so may cause an injury or a serious
accident.
11. DO NOT use in the vicinity of flammable gases such as anesthetic gases because of the
risk of ignition and explosion.
12. DO NOT use in enriched oxygen environments such as a hospital’s hyperbaric chamber
or oxygen tent because of the risk of ignition and fire.
13. DO NOT use a mobile phone near the unit. Doing so may result in malfunction.
PRECAUTION FOR USE AND MAINTENANCE

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English
PRECAUTION FOR USE AND MAINTENANCE
14. If you use a cardiac pacemaker, consult your doctor before use.
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 an infant.
17. Blood pressure measurment may not be possible for anyone with common arrhythmias
such as atrial or ventricular premature beats or atrial fibrillation.
Precaution for maintenance
1. DO NOT store the blood pressure monitor where it will be exposed to direct sunlight, high
temperature (over 60°C), low temperature (below -20°C), high relative humidity (over
95%) or in a dusty place.
2. DO NOT drop or expose the blood pressure monitor to under force or vibration.
3. Remove the battery/batteries when not in use for a long period.
4. DO NOT disassemble the apparatus.
5. DO NOT bend the cuff unnecessarily.
6. NEVER wipe the blood pressure monitor with thinner or benzene, as they may damage it.
7. When the monitor is very dirty, wipe it clean with a cloth moistened with sterilizing alcohol
or a neutral detergent, and then wipe it with a dry cloth. DO NOT use thinner or benzene.
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.
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 protect natural environment by respecting natural and/or local recycling
regulations when disposing of the batteries and the products at the end of their useful lives.

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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.
FLAT A-B, 4TH FLOOR, HUNG MOU INDUSTRIAL
BUILDING, 62 HUNG TO ROAD, KWUN TONG, KOWLOON,
HONG KONG
: WvW electronische Geräte Vertrieb GmbH
: Fintelmannstraße 20/Eingang, Martin-Heydert-Straße,
D-14109 Berlin, Germany
* For techinical data, please contact our European Representative.
Symbols Explanation
: Device compiles with the requirements of the EC Directive
93/42/EEC. Registered with the CE Marking.
: Type B applied part
: Attention, consult accompanying documents.
: Appliance compliance WEEE directive
: Manufacturer
: European Representative
LOT : Batch Code
PRECAUTION FOR USE AND MAINTENANCE
EC REP
EC REP
EC REP
EC REP
EC REP
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.
EC REP
EC REP
EC REP

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English
PRECAUTION FOR USE AND MAINTENANCE
Safety Precautions before Using AC Adapter
When you use the blood pressure monitor connected to the AC adapter (Ref. AC-230CZ),
pay attention to the following remarks.
• DO NOT remove or insert the AC adapter with a wet hand. DO NOT get the AC adapter
wet or DO NOT wash it in water. Failure to do so will cause an injury, electric shock, short
circuit or failure.
• DO NOT use an AC adapter other than the specified one. Failure to do so may cause a fire
or an electric shock.
• DO NOT use the AC adapter (Ref AC-230CZ) with a power supply voltage other than the
specified one. Failure to do so will cause a fire or an electric shock.
• DO NOT damage the cord of the AC adapter, pull it by force or put a something heavy over
it. Failure to do so will cause a fire or an electric shock.
• DO NOT use a receptacle where the plug is loosely inserted. Failure to do so will cause a
fire or an electric shock.
• Be sure to remove the AC adapter before cleaning. Clean the unit with the AC adapter
inserted will cause an electric shock or an ignition.
• When unplugging the AC adapter, DO NOT pull on the power cord but pull on the plug
itself. Pulling the cord will cause an injury or an ignition.
• DO NOT allow dust to collect over the AC adapter or DO NOT lock the power cord with a
pin. Failure to do so will cause an electric shock, ignition or short circuit.
• Be sure to pull the AC adapter from the wall socket if the blood pressure monitor is left
unused. Not doing so will deteriorate the insulator, resulting in a fire caused by electrical
leak or an electrical shock.

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Air Hose socket
MEMORY switch
POWER switch
Stand-by
Battery compartment cover
AC adapter socket Pocket
(for storing arm cuff)
Systolic blood pressure
display section
Diastolic blood pressure
display section
Pulse display
section
SYS
DIA
PULSE
/min.
Arm cuff
Air hose plug
Air hose
IDENTIFICATION OF PARTS

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English
HOW TO LOAD BATTERIES
Air hose
plug
AC adapter
plug
lock section
draw
push
1
Remove the plugs.
Remove the air hose plug and AC adapter
plug.
2
Remove the Pocket.
While pressing the lock section on the bottom
of the pocket, pull the pocket in the direction
of the arrow.
3
Open the b atte ry compartm ent
cover.
While pressing the lock section of the battery
compartment cover, pull the cover toward you
to open.

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HOW TO LOAD BATTERIES
4
Place the batteries in the
compartment.
Fit the batteries paying attention to the
positive + and negative – terminals.
* If the blood pressure monitor is left
unused for an extended period of time,
the batteries should be removed from the
compartment.
5
Close the battery compartment
cover.
Fit the lugs of the cover at the mating
recesses of the battery compartment body
and push the cover in the direction of the
arrow.
Fit the lugs (projections)
at the recesses.

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English
HOW TO LOAD BATTERIES
6
Re-attach the pocket.
Match the guides at the right and left sides
of the pocket with those on the monitor body
and slide the pocket till it clicks.
1
Remove the plug, pocket and battery
compartment cover.
( See page 9 "HOW TO LOAD BATTERIES".)
HOW TO UNLOAD THE BATTERIES

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2
Remove each battery from top to bottom
by lifting up its end, rotating it in the
direction of the arrow with your fingertip.
3
Re-attach the battery compartment cover
and the pocket.
( See page 9 "HOW TO LOAD BATTERIES".)
• Replace the batteries with four new "AA" alkaline batteries when appears on the
display, or when nothing appears on the display when the POWER switch is pressed.
• Replace all four batteries with new ones.
• Do not use the alkaline dry battery and manganese dry battery together.
• Batteries included are for demonstration purposes only. Battery life may be shorter than
specified.
• Dispose of used batteries properly in accordance with local regulations.
Replacing the batteries
HOW TO LOAD BATTERIES

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English
When the optional AC adapter, exclusive for the Citizen blood pressure monitor (CH-437C)
is used, you can measure blood pressure without paying attention to the residue of the
batteries.
AC adapter plug
* When the AC adapter is used for an extended period of time, the batteries should be
removed.
If the batteries are left in the compartment, electrolyte may leak, causing a failure of
the blood pressure monitor.
* When only the AC adapter is used for the power supply, the data stored in memory
will be erased by pulling the AC adapter from the wall socket. It is recommended to
write down the data.
• When only batteries are used for the power supply, the AC adapter plug should
unplug. If the AC adapter plug into the socket on blood pressure monitor, it might be
cause of malfunetion.
The AC adapter exclusive for the CH-437C is an option.
The AC adapter is available from retailers stocking Citizen digital blood pressure
monitors.
HOW TO USE AC ADAPTER (OPTION)
1
Insert the AC adapter plug
into the socket on the blood
pressure monitor body.
2
Insert the AC adapter into
the receptacle for the power
supply.
AC adapter(Option)
Ref. : AC-230CZ
Input: AC100~240V~50/60Hz
Output: DC6V 600mA

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POINTS FOR ACCURATE MEASUREMENT
Blood pressure varies with posture, the time of day or numerous other factors.
It is recommended to measure blood pressure at the same time each day in the
same posture.
■Measurement in sitting posture
1Place your arm on a table or similar surface
stretching out the portion from the elbow to the
hand.
2It is important to keep the arm cuff level to your
heart.
3Lightly open your hand on the table with palm up
and relax your fingers.
4Do not move your body or talk during
Measurement.
■Measurement in laying posture
* Relax yourself not to apply
1Lie down your head facing the ceiling.
2Lightly open your hand with palm up and straighten your arm.
3Relax your body, arm and fingers.
4Do not move your body or talk during measurement.

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English
HOW TO WRAP THE ARM CUFF
1
Unroll the arm cuff.
• When the arm cuff comes off, pass it through
metal bar, directing the Velcro-attached side
to the outer surface.
2
Put the arm cuff around your arm so
that the air hose comes to the left palm
side.
• The arm cuff should be put on the bare arm
or over a light-weight clothing. If you wear a
heavy-weight top, remove it.
• Be aware that if you roll up sleeves the
upper arm may be compressed resulting in
incorrect measurements.
air hose
metal bar
Velcro
3
Adjust the arm cuff position as that the air hose is located at the
center of your arm and so that the hem section of the cuff is spaced 1
to 2 cm from the elbow joint.

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4
Draw the end of the arm cuff to fit it on
the arm and secure with Velcro.
• Carefully place the arm taking care to obtain
adequate tightness, not too tight or loose.
Adequate tightness is obtained when you can
place a finger between the cuff and your arm.
You may measure your blood pressure on your
right arm. Adjust the arm cuff position so that the
air hose is located at the center of your right arm
exactly as shown in the procedure for the left
arm.
However blood pressure reading may differ
by about 10 mmHg between the right and left
arms. It is recommended to use the same arm
for measurement thereby ensuring a consistent
reading.
When you put the arm cuff around your right arm
The air hose should be
located at the center
of your arm.
HOW TO WRAP THE ARM CUFF

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English
HOW TO MEASURE YOUR BLOOD PRESSURE
To get an accurate blood pressure measurement, you need to start by
setting the pressure cuff on your arm to the correct starting pressure. The
correct starting pressure level for you is your systolic blood pressure (the
higher of your two blood pressure readings) plus 40 mmHg. You can select
between "Auto" and "Manual" techniques for pressurizing the cuff. Select
Auto if you are the only one using the unit, and select Manual if several
people are sharing the unit with you.
For use by only one person:
You can change the pressure setting by pressing the
until the desired level is reached. Set the
pressure manually to your systolic blood pressure value
(the higher of your two blood pressure readings)
+40 mmHg. Then measure your blood pressure.
AUTO
(See page 20 “Automatic
Pressurizing mode”)
Sets the starting pressure automatically to your correct
starting level, according to previous measurements.
* When you use the unit the first time after replacing the
batteries, the pressure will be set to 160 mmHg.
For shared use by several people:
MANUAL
(See page 22 “Manual
Pressurizing mode”)
In either Auto or Manual setting, you can measure your blood pressure by simply
pressing one button.
1
Wrap the arm cuff tightly around your arm.
( See page 15 "HOW TO WRAP THE ARM CUFF”.)

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HOW TO MEASURE YOU BLOOD PRESSURE
2
Insert the air hose plug into the case
of the unit.
3
Sit in the recommended position.
( See page 14 "POINTS FOR ACCURATE
MEASUREMENTS".)
4
Measure your blood pressure.
Press to start inflating the cuff. You can select either the "AUTO" or "MANUAL" mode
to set the correct starting pressure. Use the mode appropriate for your style of use: personal
or shared.
◆ For personal use: Use "AUTO" to measure your blood pressure. ( See page 20
"Automatic Pressurizing mode".)
◆ For shared use by several people: Use "MANUAL" to measure your blood pressure. (
See page 22 "Manual Pressurizing mode".)
• If you want to cancel measuring during use, press . The air pressure inside the arm
cuff will be released and the power will be turned off.
• When the measurement has been obtained, it will be stored in the memory in the monitor
unit, automatically.

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English
About 3 minutes after the last measurement was obtained, the power will be turned off,
automatically.
Automatic Power Off Function
5
After a measurement is obtained,
press .
The power will be turned off.
6
Store the arm cuff in the pocket.
Wind the air hose around the arm cuff and store
the cuff in the pocket.
HOW TO MEASURE YOUR BLOOD PRESSURE

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In this mode, the pressure in the cuff is raised to the correct level automatically,
according to the previous measurement stored in memory, and your blood
pressure is measured.
1
Press .
The cuff is inflated immediately after the mark is
turned on and then off.
The starting pressure is set automatically, based
on the last measurement taken, which is stored in
memory.
• The first time you use the blood pressure monitor
after replacing the battery, the pressure will be set to
160mmHg.
• If the level of the pressure is not enough, the
pressure is automatically heightened to the level for
measurement of the blood pressure again.
* If the pressure is still too low, "Err1" will appear and
the measurement will be cancelled. If this happens,
use the Manual Pressurizing mode to measure your
blood pressure. Then, the blood pressure reading
will be stored and you will be able to measure
your blood pressure easily the next time, using the
Automatic Pressurizing mode.
A little while after the starting pressure reaches
the correct level, the mark will be lit and the
measurement will start automatically.
◆Automatic Pressurizing mode
HOW TO MEASURE YOU BLOOD PRESSURE