Citizen REF CH-302B User Manual

TM

INSTRUCTION MANUAL

FOR

DIGITAL BLOOD PRESSURE MONITOR

REF CH-302B

IDENTIFICATION OF PARTS

English

Air-release system

Cuff

Exhaust button

Bulb

Systolic blood pressure display section

Diastolic blood pressure/Pulse display section

Bulb hose

Power switchCuff hose Hose connector Battery cover

- Eng 1 -

SPECIFICATIONS

Measuring method:
Indication:
Measuring range:
Accuracy:
Inflation:
Deflation:
Power source:
Battery life:
Rated voltage:
Working temp. & humidity:
Storage temp. & humidity:
Outside dimensions:
Weight:
Electric shock protection:
Accessories:

*Specifications may be changed without notice in the event of improvements being made.

Oscillometric system
Digital display, Height: 10mm
Pressure; 0~280mmHg, Pulse; 40~200 beat/min.
Pressure; ±3mmHg, Pulse; ±5%
Manual inflation by bulb
Automatic constant speed deflation system
One battery (6F22, 6LR61)
Approx. 400 times/6F22 (once a day, room temperature 22°C)
9V DC
+10°C~+40°C, 30%~85%RH
–20°C~+60°C, 10%~95%RH
85mm(W) × 120mm(D) × 35mm(H)
Approx. 150g (Apparatus and battery)
Type B equipment
Cuff, Battery (6F22), Instruction manual

- Eng 2 -

CLEANING METHOD OF CUFF

English

After cleaning the cuff with a neutral detergent, lightly rinse it
with water and let it dry in the air. Hard rubbing or washing in

GENERAL REMARKS

General Remarks on blood pressure
measurement

• If the cuff is to be deflated quickly, depress “POWER” switch.

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

• When attaching the cuff, rubber cuff hose should be placed
on the inside of your arm on top of the arterial.

• Self measurement is no therapy! In no case may you change
the dosage of medication prescribed by your physician.

• In operation for blood pressure measurement, you should
urinate and should remain relatively still for 10 to 15 minutes
prior to measurement.

• Exercise, eating and drinking, smoking, etc., prior to mea­surement may affect the results.

• The blood pressure varies constantly throughout the day.
Measurement should be made regularly at the same time each
day.

• Do NOT be impressed by the results of one measurement.
Keep a record of blood pressure variations. Many readings
tell a story.

- Eng 3 -

a washing machine will cause air leakage. Also, be careful not
to get water into the air hose.

• Emotional stress may tend to cause pressure to rise.

For proper measurement of blood pressure

• Take a deep breath five or six time and then relax before mea­suring blood pressure. If you are tense when taking the mea­surement, you will not get a valid reading.

• 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.

• Putting on the cuff is one of the most important tasks for
ensuring proper measurement of blood pressure.
cuff around the arm and tighten it so that one finger may be
inserted between the cuff and arm.

• Do NOT measure blood pressure after bathing or drinking.

• When you feel like relieving yourself, you should do so be­fore measuring blood pressure.

• Measure 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.

• Do NOT measure blood pressure immediately after drinking
coffee or tea or smoking.

Wind the

• 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 during measurement.

PRECAUTION FOR USE AND MAINTENANCE

• Do NOT keep on measuring so many times, as your arm will
have built up congestion of blood, and you will not get a valid
reading.

Precautions for use

• If you suffer from heart disease, high blood pressure or other
circulatory disease, please consult your doctor first.

• If you feel abnormal pressure of the cuff during use or any
other irregularity, reduce the pressure by immediately switch­ing off the power or removing the batteries and consult the
sales outlet where purchased.

• If you think the measured value is abnormal or if measuring
makes you feel unwell, discontinue use and consult your
doctor.

• Measurement of blood pressure may not be possible for
someone with a weak pulse or arrhythmia.

• Congestion, swelling, etc. may occur in some people.

• If blood pressure is measured repeatedly, an accurate result
will not be achieved. An interval of about 10 minutes should
be allowed.

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

Precautions for maintenance

• 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.

• Do NOT expose the blood pressure monitor to under force or
vibration, or drop it.

• Remove the battery/batteries when not in use for a long period.

• Do NOT disassemble the apparatus.

• Do NOT bend the cuff or air hose unnecessarily.

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

• 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.

Nature and frequency of maintenance:

This products 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.

- Eng 4 -

Protect the nature environment:

Please help protect natural environment by respecting national
and/or local recycling regulations when disposing of the bat­teries and the products at the end of their useful lives.

Reference European standard:

This products complies with EC instructions 93/42/EEC (Medi­cal Device Directive) and with the following standards: EN 1060­1 : 1995 “Noninvasive Sphygmomanometers, Part 1 General
Requirements” and EN 1060-3 : 1997 “Noninvasive Sphygmo­manometers, Part 3 Supplementary Requirements” for Elec­tromechanical Blood-Pressure Measuring Systems.

PREPARATION FOR MEASUREMENTS

Manufacturer:

Name: Premier Precision Ltd.
Address: Block E, G-H, 6

Phase 2, Yip Fat Factory Building,
73-75 Hoi Yuen Road,
Kwun Tong, Kowloon, Hong Kong

th

floor,

European Representative:

Name: WvW elektronische Geräte Vertrieb GmbH.
Address: Robert-Koch-Straße 20,

D-80538 München,
GERMANY

English

1. Installing battery

Take off the battery cover at the back of the unit by sliding it
as shown.

Install a 9V battery (6F22, 6LR61) taking care for the polarity.

2. Inserting hoses

Bulb hose

Cuff hose

Insert the cuff hose and bulb hose into the hose connector.

- Eng 5 -

3. Attach the cuff

Wind the arm cuff around the left upper arm tightly where the
bottom edge of the cuff is positioned about 1 – 2cm (about 1
inch) above the elbow joint.

1 – 2cm

When you will wind the cuff, please wind the cuff on the skin
directly if possible.
(If measurement is made by rolling the shirts or jacket up over
the arm, this will constrict the upper arm and prevent accurate
measurement)

The cuff hose should be placed on the inside of your arm as
figures.
The cuff should be wound so that one finger can be inserted
under the cuff.

Rest the elbow on a table so that the section of the upper arm
is at the height of the heart. Relax the lower arm across the
table and remain still.

Make measurements in either a seated or reclining posture.

- Eng 6 -

MEASUREMENTS PROCEDURES

English

1. Power on

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE/min

POWER Touch the power switch

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE/min

(Value of the pulse is not memorized nor displayed.)
Memory function works on for approximately 2 seconds or

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE/min

Touch the power switch
for power on.
All display marks will be
displayed and the buzzer
will beep.

After all display marks are
disappeared the last mea­sured systolic and dias­tolic blood pressure val­ues are displayed.

during power switch is
depressed.

Next the Exhaust symbol
“▼” will be displayed.

- Eng 7 -

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE/min

If there is some air re­maining in the cuff, release
air with the exhaust button

0

until the “

buzzer beeps 3 times.
Unit is now ready to take
new measurement.

2. Attach the cuff

Attach the cuff around the upper left arm.

3. Pressuriz e the cuff

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE/min

Note:

At pressure of 140, 170, 200, 240mmHg, the buzzer beeps

2 times.

Pressurize the cuff by
pumping the bulb until you
have a reading of approxi­mately 30 to 40 mmHg
higher than your regular
systolic blood pressure.

” appears. The

SYSTOLIC mmHg DIASTOLIC mmHg

When pressurization is
completed, the automatic
air-release system will
gradually reduce cuff

PULSE/min

pressure, and Measuring
Mark “Q” will appear on

the display indication that measurement is in progress.

4. Press the exhaust button

SYSTOLIC mmHg DIASTOLIC mmHg

Press the exhaust button
to completely release the
air within the cuff.

PULSE/min

Flashing

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE/min

Flashing

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE/min

Flashing

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE/min

When a pulse is detected,
the pressure value moves
to the right side of the dis­play. At this time Measur­ing Mark “Q” flashes with
a short beep at the same
rate as pulse rate.

When the measurement is
completed, the buzzer
beeps, Systolic pressure is
displayed on the left and
Diastolic pressure on the
right.

Altemate display

Approximately 2 seconds
later, blood pressure val­ues and pulse appear al­ternately on the display

- Eng 8 -

5. Power off

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE/min

POWER

Touch the power switch

Touch the power switch
for power off.
If this unit is left on after
measurement an auto­matic power-off function
turns the power off after
approximately 3 minutes.

DESCRIPTION OF DISPLAY MARKS

DISPLAY MARK CONDITION/CAUSE CORRECTIVE ACTION

SYSTOLIC mmHg DIASTOLIC mmHg

The cuff was not inflated to more than
30-40 mmHg above your systolic pressure.

PULSE/min

SYSTOLIC mmHg DIASTOLIC mmHg

The cuff was inflated to more than 320 mmHg. Exhaust the air within the cuff.

PULSE/min

SYSTOLIC mmHg DIASTOLIC mmHg

Appears when the blood pressure could not be
measured accurately.

PULSE/min

SYSTOLIC mmHg DIASTOLIC mmHg

Appears when the pulse could not accurately be
measured.

PULSE/min

SYSTOLIC mmHg DIASTOLIC mmHg

Appears when the battery becomes weak. Replace the new battery.

PULSE/min

SYSTOLIC mmHg DIASTOLIC mmHg

Units has a trouble. Ask purchased shop.

PULSE/min

- Eng 9 -

Raise the set pressure value by
higher level

Repeat measurement again.

English

●CITIZEN is a registered trademark of Citizen Watch Co., Japan.

Consumer Electronics Division

CBM Bldg. 5F, 5-68-10, Nakano, Nakano-ku, Tokyo 164-0001, Japan
Phone: [phone] Fax: [phone] E-mail: [e-mail]