Citizen CH-403C User Manual

Cuff

Rubber cuff hose

TM

INSTRUCTION MANUAL

FOR

DIGITAL BLOOD PRESSURE MONITOR

REF CH-403C

IDENTIFICATION OF PARTS

Systolic blood pressure
display section

Diastolic blood pressure/
Pulse display section

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POWER

START

Power switch

Start switch

Memory recall switch

Pressure setting switch

Hose plug

Battery cover

Memory reset switch

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Hose socket

SELECT

MEMORY

English

SPECIFICATIONS

Measuring method:
Indication:
Measuring range:
Accuracy:
Inflation:
Pressurization setting:
Deflation:
Exhaust:
Memory function:
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: 19mm
Pressure; 0 ⬃ 280mmHg, Pulse; 40 ⬃ 200 beat/min.
Pressure; ±3mmHg, Pulse; ±5%
Automatic inflation by internal pump
4 stage: 130, 160, 200, 250mmHg
Automatic constant speed deflation system
Quick exhaust by electromagnetic valve
7 data
4 “AA” (R6P, LR6) batteries
Approx. 400 times/LR6 Approx. 200 times/R6P
(once a day, 160mmHg, room temp. 22°C)
6V DC
+10°C ⬃ +40°C, 30% ⬃ 85%RH
–20°C ⬃ +60°C, 10% ⬃ 95%RH
135mm(W) × 130mm(D) × 50.5mm(H)
Approx. 360g (Apparatus and batteries)
Type B equipment
Cuff, 4 “AA” (R6P) batteries, Instruction manual

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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

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.

• Emotional stress may tend to cause pressure to rise.

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

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.

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Protect the nature environment:

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MEMORY

START

POWER

SELECT

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
1060-1: 1995 “Noninvasive Sphygmomanometers, Part 1
General Requirements” and EN 1060-3: 1997 “Noninvasive
Sphygmo-manometers, Part 3 Supplementary Requirements
for Electromechanical Blood-Pressure Measuring Systems”.

1. Turn power ON

the mainframe until it is tightly connected.

Manufacturer:

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

European Representative:

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

MEASUREMENTS

Press the “Power switch” for power ON.Insert the Hose plug from the cuff into the hose socket at

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th

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

D-80538 München,
GERMANY

English

SYSTOLIC mmHg DIASTOLIC mmHg

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE/min

AVE. 12 34 567

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE/min

AVE. 12 34 567

AVE.

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SYSTOLIC mmHg DIASTOLIC mmHg

AVE.

12 34 567

PULSE/min

All display marks appear for approx. 1
second and buzzer beeps.

PULSE/min

After all display marks are disappeared,
deflation mark “▼” appears for approx.
1 second (three short beeps notify you
of ready for measurement) then the last
pressure setting value appears for

0

approx. 3 seconds. Then the “

” appears

at the display.

Ready for measurement

2. Attaching of arm cuff and posture during
measurement

Unfasten and open the cuff as figure.

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

1 – 2cm

• When you wind the cuff, please wind the cuff next to the
skin as 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)
Rubber cuff hose should be placed on the inside of your
arm as figures.

English

The cuff should be wound so that one finger can be in­serted under the cuff. Note that uneven cuff winding will
prevent proper measurements.

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.

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3. Select the value for pressure for mea-

surement

4. To start the measurement

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Press the “Pressure Setting Switch” and set the value to a
value approximately 20~30mmHg above your normal systolic
blood pressure.

There are 4 settings; 130, 160, 200 and 250mmHg.

After press on the “Pressure Setting Switch”, the set pres­sure value will be displayed at the left and the right side of
the display.

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Press the “Start Switch”.
The arm cuff pressurizes when the “Start Switch” is pressed.

SYSTOLIC mmHg DIASTOLIC mmHg

AVE. 12 34 567

PULSE/min

When the pressurization is reached to the set value, air infla­tion is stopped automatically.

SYSTOLIC mmHg DIASTOLIC mmHg

AVE. 12 34 567

PULSE/min

When pressurization is completed, the automatic exhaust
mechanism will gradually reduce arm cuff pressure, and the
mark “Q” appears indicating that measurement is in progress.

SYSTOLIC mmHg DIASTOLIC mmHg

5. Turn power off

Press the “Power Switch” to turn OFF.

English

AVE. 12 34 567

PULSE/min

When a pulse is detected, the pressure value moves to the
right side of the display. At this time the mark “Q” flashes
and buzzer sounds.

SYSTOLIC mmHg DIASTOLIC mmHg

AVE.

12 34 567

PULSE/min

When the diastolic pressure value is detected, the measure­ment is completed and buzzer sounds.
Systolic pressure is displayed on the left and diastolic pres­sure on the right side of the display.

2 to 3 seconds after completion of measurements, the mark
“▼” appears and air will deflate immediately.

SYSTOLIC mmHg DIASTOLIC mmHg

AVE.

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PULSE/min

2 or 3 seconds later, pressure value and pulse appear alter­nately on the display.

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6. Subsequent measurements

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When a measurement need to be made again, just press the
“Start Switch” again.

7. Change of the pressure-setting value

CH-403C

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When the pressure setting is needed to be changed, press
the “Pressure Setting Switch” and select optimum value.

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8. Memory recall

SYSTOLIC mmHg DIASTOLIC mmHg

CH-403C

SELECT

MEMORY

POWER

START

This blood pressure monitor has a function which is able to
display last measured value.

• Press the “Memory Recall Switch” to recall the last mea­sured blood pressure.
The last measured systolic and diastolic blood pressure are
displayed (Value of the pulse is not memorized nor dis­played).

SYSTOLIC mmHg DIASTOLIC mmHg

AVE.

12 34 567

PULSE/min

• By a first depressing of “Memory Recall Switch”, averaged
blood pressure is displayed and “ ] ” mark flashes to no­tify that the displayed value is averaged value.

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AVE.

12 34 567

PULSE/min

• By a second depressing of “Memory Recall Switch”, the
value for latest (last measured value) blood pressure is dis­played. The “ ] ” mark shifts to right (from “Ave.” to “1”)
and notify that the value is the last measured (newest one)
value.

SYSTOLIC mmHg DIASTOLIC mmHg

AVE.

12 34 567

PULSE/min

• By a third depressing of “Memory Recall Switch”, the value
for next later blood pressure is displayed. The “ ] ” mark
shifts to right (from “1” to “2”) and notify that the value is
the next later one.

SYSTOLIC mmHg DIASTOLIC mmHg

AVE.

12 34 567

PULSE/min

• As per the same above-mentioned method, you may recall
7 last measured values by depressing of “Memory Recall
Switch”.

— Memory function works on for approximately 3 seconds

or until another switches are pressed. (Even if the last mea­sured value is displayed, you are able to start the mea­surements by pressing of “Start Switch” or you are able
to change the pressure-setting value by pressing of “Pres­sure Setting Switch” or you are able to turn OFF by de­pressing of “Power Switch”)

— Memory recall function does not work during automatic

inflation and blood pressure measurement are being made.

— New blood pressure value is stored in memory at press-

ing “Power Switch” for turn OFF or at pressing “Start
Switch” for new measurement.

9. Automatic power off function

If this unit is left on after measurement, an Automatic Power­OFF Function turns the power OFF after approximately 3 min­utes. To continue measurement press the power switch to
turn the unit ON.

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10. Battery replacement

If the batteries become weak, the “ ” mark will appear in
the display, indicating that batteries should be replaced with
new ones.

Remove the battery cover at mainframe and replace the new
four pieces of batteries.
Type “AA” (R6P, LR6) battery or equivalent is suitable for
this blood pressure monitor.

English

DESCRIPTION OF DISPLAY MARKS

DISPLAY MARK CONDITION/CAUSE CORRECTIVE ACTION

SYSTOLIC mmHg DIASTOLIC mmHg

AVE.

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SYSTOLIC mmHg DIASTOLIC mmHg

AVE.

12 34 5 67

SYSTOLIC mmHg DIASTOLIC mmHg

AVE.

12 34 5 67

SYSTOLIC mmHg DIASTOLIC mmHg

AVE.

12 34 5 67

SYSTOLIC mmHg DIASTOLIC mmHg

AVE.

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SYSTOLIC mmHg DIASTOLIC mmHg

AVE.

12 34 5 67

Measurement is begun, but the pressure
was insufficient.

PULSE/min

Appears when the blood pressure could
not be measured accurately. (Some
noise was detected or moved arm dur-

PULSE/min

ing measuring.)

Appears when the pulse could not ac­curately be measured.

PULSE/min

Appears when the batteries become
weak.

PULSE/min

Appears when no memory is stored at
pressing of “Memory Recall Switch”

PULSE/min

Units has a trouble.

PULSE/min

Change the pressurization setting one level by pressing
“Pressure Setting Switch” and measure once again.
(Automatic re-measuring will be done only 1 time.)

Repeat measurement again.

First exhaust air from the cuff, reapply the cuff properly
and remeasure.

Replace the batteries.

Take a measurement.

Blood pressure will store automatically.

Ask purchased shop.

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●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]