English

INSTRUCTION MANUALFORDIGITAL BLOOD PRESSURE MONITOR
REF

CH-311B

CITIZEN is a registered trade mark of Citizen Holdings Co., Ltd., Japan.
Design and Specification are subject to change without notice.

English
6-1-12, Tanashi-cho, Nishi-Tokyo-shi, Tokyo 188-8511, Japan
http://www.citizen-systems.co.jp/
E-mail: sales-oe@systems.citizen.co.jp

1301- Eng 1 -

GENERAL REMARKS
1. If the cuff is to be deflated quickly, depress “Exhaust button”.

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.

2. The attached cuff is suited for an arm circumstance of 22 cm to 32
cm.

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

3. When attaching the cuff, the air hose should be placed on the insideof your arm on top of the arterial.

8. Measure blood pressure with a relaxed and quiet posture. Keep thecenter of the cuff at the level of your heart, and DO NOT move yourarm or talk.

4. Self measurement is not therapy! In no case may you change thedosage 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 tomeasurement.
6. Exercising, eating, drinking, smoking, etc., prior to measurement may
affect the results.

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 toWHO-standard.

7. Blood pressure varies constantly throughout the day. Measurement
should be made regularly at the same time each day.

Remarks:
The graph is not exact,
but may be used as a
guide in understanding
non-invasive bloodpressuremeasurements.
The device intended foruse in adult population.

8. DO NOT be too impressed by the results of one measurement. Keepa 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 orirritated 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 beinserted between the cuff and arm. (See page 12)
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.

- Eng 2 -Definition and Classification of Blood Pressure Levels
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 yourblood pressure on a daily basis. Ideally, you should measure yourblood pressure daily at the same time as far as possible.

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

GENERAL REMARKSPRECAUTION FOR USE AND MAINTENANCE
Precaution for use

2. If you feel abnormal pressure of the cuff during use or otherirregularity, reduce the pressure immediately by depressing “Exhaust
button” 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 physician.
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 3 minutes should be allowed.
7. Consult your physician before use if you suffer a severe disorder ofblood circulation in the arms. Failure to do so may cause healthhazards.
8. Measurement may not be possible for someone with an insufficient
blood flow in the area to be measured or frequent irregularheartbeats. Consult your physician for judgment.
9. DO NOT wrap the cuff around an injured arm.

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.This product uses natural rubber for the rubber bulb.
The natural rubber may cause any allergic reaction such as itching,flare, urticaria, swelling, fever, difficult breathing, asthma status,
blood pressure drop or any shock.
* If any of the symptoms as shown above is observed, immediately
stop using this product and consult your physician.
18.Blood pressure measurements determined with this device are
equivalent to those obtained by a trained observer using thecuff/stethoscope auscultation method, within the limits prescribed by
the American National Standard, Electronic or automatedsphygmomanometers.
19.Measurement of blood pressure may not be possible for someone
with a common arrhythmias such as atrial or ventricular prematurebeats or atrial fibrillation.

Precaution for maintenance1. DO NOT store the blood pressure monitor where it will be exposed todirect sunlight, high temperature (over 60°C), low temperature (below-20°C), high relative humidity (over 95%) or in a dusty place.

10.DO NOT wrap the 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.

2. DO NOT drop or expose the blood pressure monitor to under force orvibration.

11.DO NOT use in the vicinity of flammable gases such as anesthetic
gases because of the risk of ignition and explosion.

4. DO NOT disassemble the apparatus.

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.

6. When the monitor is very dirty, wipe it clean with a cloth moistenedwith Sterilizing alcohol or a neutral detergent, and then wipe it with adry cloth.

13.DO NOT use a mobile phone near the unit. Doing so may result in
malfunction.

7. NEVER wipe the blood pressure monitor with thinner or benzene, as
they may damage it.

14.If you use a cardiac pacemaker, consult your physician before use.

8. Please wipe the cuff with moist cloth. Hard rubbing will cause Airleaking. Also, be careful not to get water into the air hose.

- Eng 4 -- Eng 5 -3. Remove the battery/batteries when not in use for a long period.
5. DO NOT bend the cuff or air hose unnecessarily.

English

1. If you suffer from heart disease, high blood pressure or othercirculatory disease, please consult your physician first.

PRECAUTION FOR USE AND MAINTENANCE

PRECAUTION FOR USE AND MAINTENANCE

IDENTIFICATION OF PARTS

Nature and frequency of maintenance:

Systolic blood pressure
display section

Protect the nature environment:

Diastolic blood pressure
display section

Please help to 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.

Pulse display
section

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

Reference European standard:Hole of holding strap
Power switch
(
)
: OFF
: ON
Pumping bulb

The blood pressure measuring device corresponds to regulation
EN60601-1, EN1060-1, EN1060-3, EN1060-4.
The device has been tested and homologated in accordance with
EN60601-1-2 for EMC. This does not guarantee in any way that thedevice will not be affected by electromagnetic interference. Avoid
using the device in high electromagnetic environment.

Name:
Address : 62 Hung To Road, Kwun Tong, Kowloon, Hong Kong

Air Hose socket

Battery compartment coverEuropean Representative:
Name: WvW elektronische Geräte Vertrieb GmbH
Address : Fintelmannstraße 20/Eingang, Martin-Heydert-Straße,
D-14109 Berlin, Germany- Eng 6 -- Eng 7 -EnglishThis 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.

IDENTIFICATION OF PARTS

HOW TO LOAD BATTERIES
cover.
1 While pressing the lock section of the battery
compartment cover, 2 pull the cover toward you
to open.

Exhaust button

2 Place the batteries in thecompartment.
Fit the batteries paying attention to thepositive + and negative – terminals.

Arm cuff

3 Close the battery compartment
cover.
Push the cover in the direction of the arrow.

Air hose plug
Air hose- Eng 8 -- Eng 9 -1
2

English1 Open the battery compartment

HOW TO UNLOAD THE BATTERIES
cover.
(
See page 9 "HOW TO LOAD
BATTERIES".)

2 Remove the batteries.

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
1 Place your arm on a table or similar
surface stretching out the portion
from the elbow to the hand.
2 It is important to have the arm cuff
level to your heart.
3 Lightly open your hand on the tablewith palm up and relax your fingers.
4 Do not move your body or talk during
measurement.

3 Close the battery compartment■ Measurement in laying posture

cover.
* Relax yourself not to applypressure to the arm cuff.

Replacing the batteries• Replace the batteries with two new "AAA" batteries whenappears on
the display, or when nothing appears on the display when the POWER
switch is pressed.

1 Lie down your head facing the ceiling.

• The memory is erased if the batteries are removed for replacement, etc. anda record should be kept of any necessary data.

3 Relax your body, arm and fingers.

• Do not use the alkaline dry battery and manganese dry battery together.

2 Lightly open your hand with palm up and straighten your arm.
4 Do not move your body or talk during measurement.

• The batteries provided with the unit power the monitor. They may not last as
long as indicated.
• Dispose of used batteries properly in accordance with local regulations.

- Eng 10 -- Eng 11 -English1 Open the battery compartment

POINTS FOR ACCURATE MEASUREMENTHOW TO WRAP THE ARM CUFF
• When the arm cuff comes off, pass it
through metal bar, directing the
Velcro-attached side to the outersurface.

metal bar

4 Draw the end of the arm cuff

Velcroto fit it on the arm andsecure with Velcro.

English

1 Unroll the arm cuff.

HOW TO WRAP THE ARM CUFF

• Carefully place the arm taking care toobtain adequate tightness, not too
tight or loose. Adequate tightness isobtained when you can place a finger
between the cuff and your arm.

2 Put the arm cuff aroundyour arm so that the air hosecomes to the left palm side.
• The arm cuff should be put on thebare arm or over a light-weightclothing.
• If you wear a heavy-weight top,
remove it. Be aware that if you roll up
sleeves the upper arm may becompressed resulting in incorrect
measurements.

3 Adjust the arm cuff position as that the air hose islocated at the center of your arm and so that thehem section of the cuff is spaced 1 to 2 cm fromthe elbow joint.

When you put the arm cuff around your right 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 centerof your right arm exactly as shown in theprocedure for the left arm.
However blood pressure reading may differ
by about 10 mmHg between the right andleft arms. It is recommended to use thesame arm for measurement thereby
ensuring a consistent reading.

air hose- Eng 12 -- Eng 13 -The air hose should belocated at the centerof your arm.

HOW TO MEASURE YOUR BLOOD PRESSURE
See page 12 "HOW TO WRAP THE ARM CUFF".)

2 Insert the air hose plug into
the case of the unit (Air Hosesocket).

3 Sit in the recommended
position.

Air HosesocketMemory function works on for approximately
2 second or during depressed the "POWER"
switch.
After memorized blood pressure value isdisappeared, deflation mark "▼" appears.

(
See page 11 "POINTS FOR
ACCURATE MEASUREMENTS".)

4 Measure your blood pressure.
4.1 Turn the Power On

If there is some air remaining in the cuff,
release air with the exhaust button until the"0" appears.
The unit is now ready to take newmeasurement.

Grip the pumping bulb.
( Do not bend or pull the pumping
bulb.)*

Press the "POWER" switch for Poweron.

All display mark appear for approx. 1
second.

- Eng 14 -- Eng 15 -EnglishAfter all display marks are disappeared, thelast measured systolic / diastolic bloodpressure values and pulse rate are displayed.

1 Wrap the arm cuff tightly around your arm.
(

HOW TO MEASURE YOUR BLOOD PRESSURE

HOW TO MEASURE YOUR BLOOD PRESSURE

4.2 Pressurize the cuff

HOW TO MEASURE YOUR BLOOD PRESSURE

4.3 Press the exhaust button
Press the exhaust button valve to completely
release the air in the cuff.

Exhaust button

When pressurization is completed, theautomatic air release system will gradually
reduce cuff pressure, and Measuring Mark"" will appear on the display indicationthat measurement is in progress.
( Do not pump bulb while measuring.)*

When a pulse is detected, a pressure
reading will shift to the diastolic pressure
display section. Once the pulse is detected,
the "" mark will flash with each pulse
beat.

4.4 Power off
Press the "POWER" switch to turn off.

4.5 Subsequent measurement
For another measurement, just pressurize
the cuff by pumping bulb.
The time between two such Measurements
must be at least 3 minutes.

Automatic Power off Function
About 3 minutes after the last measurement was obtained, the power will beturned off, automatically.

When the diastolic pressure value isdetected, the measurement is completed.
After completion of measurement, the mark"▼" appears.

- Eng 16 -- Eng 17 -EnglishPressurize the cuff by pumping bulb until you
have a reading of approximately 30 to 40
mmHg higher than your regular systolicblood pressure.

ERROR INDICATIONSCONDITION/CAUSECORRECTIVE ACTION

The cuff was inflated to Exhaust the air within the cuff.
more than 280 mmHg.

What is blood pressure?
The heart is a pump thatcirculates blood throughout your body. Blood is pumped from the heart
at a constant pressure into arteries. This pressure is called the arterial
blood pressure, which represents, in general, blood pressure. Bloodpressure is indicated by several kinds of pressures such as: systolicpressure that occurs when the heart pumps blood; and diastolic pressurethat occurs just when blood returns to the heart.
(Systolic)(Diastolic)ArteryArteryLeft atrium

Appears when the bloodpressure could not bemeasured accurately.

Appears when the pulse
rate falls outside themeasuring range (below
39 beats/min. or above
181 beats/min.)Leftventricle The artery wall expands.
Contraction

Repeat measurement again.

Appears when the battery Replace the battery.
becomes weak.

Device has a trouble.

Left atrium

Ask purchased shop.

Left
ventricle

Dilation

Blood pressure changes at all times.
Blood pressure
differs with age, gender and other factors. Blood pressure of one person
is likely to be affected by biorhythm of a day, posture, physical activities,
mental activities, stress and atmospheric temperatures.
It is said that blood pressure of a healthy person varies by 20 to 50
mmHg within a day.
Systolic blood pressure

Diastolic blood pressure

Time of day- Eng 18 -Normal state is restored
to the artery wall.

- Eng 19 -EnglishThe cuff was not inflated Raise the set pressure value
to more than 30-40 by higher level.
mmHg
above
your
systolic pressure.

Blood pressure value (mmHg)

DISPLAY MARKABOUT “BLOOD PRESSURE”

BEFORE ASKING FOR REPAIR/INSPECTION

Q Why is the blood pressure measured at home different fromBe sure to check the following before sending your bloodpressure monitor for repair/inspection.

that measured at the physician or a hospital?

A Blood pressure may vary with exercising, ambient

temperature or mental states. 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 because ofconcern and nervousness. To know what affects bloodpressure is helpful to your health monitoring.

Q What is the benefit of measuring blood pressure at Home?
A Blood pressure measured
at home is reliable since it
can be measured in astable and relaxed
condition. Physicians lay
importance on bloodpressure measurements
taken at home. It is
recommended to measure
your blood pressure at thesame time on a daily
basis and to record blood pressure variation.

CautionPhenomenon

Point to be checked

How to repair

Display gives no
indication evenwhen you press
Power switch.

Check whether batteries
are dead.

Replace all batteries withnew ones.

Check whether batteries
are installed with incorrect
polarity ( + – ).

Load the batteries withcorrect polarity.

No measurement ispossible.

Check if thecome on.

mark has

Did you stay calm during
measurement?

Measure again, making sure
to remain still.

Note that measurement of blood pressure may not be
possible for someone with an extremely weak pulse or
cardiac arrhythmia (irregular pulses).
If your pressure readings areabnormally higher or lower than thosetaken in hospital:

See page 20.

If your pressure readings areabnormally high or low:

See pages 11 to 13.

Always consult your physician for interpretation of your bloodpressure readings and proper treatment.

- Eng 20 -Wrap the arm cuff properly.

Check if the arm cuff iswrapped properly.

- Eng 21 -EnglishQUESTIONS AND ANSWERS ON BLOOD PRESSURE

ADDITIONAL INFORMATIONSPECIFICATIONSPrecautions for use

Intended Use• This device is noninvasive blood pressure monitor by oscillometric method. This
device can measure the systolic blood pressure (SYS), the diastolic blood pressure(DIA) and the pulse rate automatically.
• This device is intended to be used for checking personal health condition at home
under the direction of a physician and is not intended to be a diagnostic device.
• This device is not intended for use with neonates or infant, and not intended forautomatic cycling measurement.

Symbols Explanation: The CE marking is meant to provide information to market inspectors in
the EU member countries.
: Type BF applied part
: Keep dry: Warning: Refer to instruction manual before use

Model Number:
Measuring Principle:
Cuff:
Arm Circumference Range:
Measurement Range: Pressure
Pulse
Accuracy:
Pressure
Pulse
LCD Indication:
Pressure
Pulse
Marks
Switch:Inflation:
Deflation:
Exhaust:Rated Voltage:
Power Source:
Battery Life:: Appliance compliance WEEE directivePb: Accumulators and battery packs for separate collection: Manufacturer

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, pleasetake them to applicable collection points.
For more information about collection and recycling of batteries, pleasecontact your local municipality, your waste disposal service or the pointof sale where you purchased the items.

Pb

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 ordealer 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.
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.

Automatic Power off Function:
Memory Function:
Dimensions:
Weight:Operating Environment:
Storage Environment:
Electrical Shock Protection:
Degree of Protection
Service Life:
Cuff’s Life:
Accessories:

CH-311B
Oscillometric Method
Soft cuff
22.0 to 32.0 cm
0 - 280 mmHg
40 - 180 Pulse / Min±3 mmHg±5% of reading
Systolic Blood Pressure: 3 digits
Diastolic Blood Pressure: 3 digits
Pulse Rate: 3 digits
Measuring:
Exhaust: Re-Measure:
Battery:"POWER" switch
Manual Inflation by Pumping Bulb
Air release system
Quick Exhaust Valve
DC 3V
0.1W (: Direct Current)
2 "AAA" (R03, LR03) Size Batteries
Approx. 700 times (Manganese Battery)(160 mmHg, 1 time / day, 22°C)
Approx. 3 min. (after activated)
One Memory
66.5(W) x 44.5(D) x 161.5(H) mm
Approx. 140g (Apparatus with batteries)
Temperature 10 to 40°C Humidity 30 to 85% RH
Temperature -20 to 60°C Humidity 10 to 95% RH
Internal Power Unit
Type BF applied part
5 years
Approx. 2000 times
Set includes a cuff (model:SCN-002), 2 AAA batteries(R03) for the monitor, Instruction Manual.

* Applied part for this device is Cuff.
* A range in barometoric pressure 105 kPa to 70 kPa* A range in altitude -300 m to 3000 m* Overall system accuracy of this device is met with the requirement of item 7.9 of
EN1060-3. EN1060-3 : Non-invasive sphygmomanometers Part 3 (European Standard)

Warning No modification of this device is allowed.
* Specifications may be changed without notice in the event of improvements being made.

- Eng 22 -- Eng 23 -EnglishMake sure to store the blood pressure monitor, where children, pets and or pests are
not there.
The monitor is not intended to be a diagnostic device, because it is intended forhome use.
Be sure to use only our authorized parts and accessories. Parts and accessories not
approved for use with the device may damage the unit.