Citizen CH-491E Instruction Manual

English

— Eng 1 —

TM

IDENTIFICATION OF PARTS

Diastolic blood pressure
display section

INSTRUCTION MANUAL

FOR

DIGITAL BLOOD PRESSURE MONITOR

REF CH-491 E

MODE

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PULSE/min

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CORRECT

SET

CLEAR

RECALL

Systolic blood pressure display section

Memory display section

Start switch

Mode switch

Time correcting
switch

Time setting
switch

Memory clear switch

Memory recall switch

Pulse display section

Reset switch

Battery cover

Cuff

Tube

Air connector

— Eng 2 —

CLEANING METHOD OF CUFF

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 a

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

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 y ou 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 min-

utes 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.

SPECIFICATIONS

Measuring method: Oscillometric system
Indication: Digital display, Height: 16mm

Digital Graphic memory display

Measuring range: Pressure; 0 ~ 280mmHg, Pulse; 40 ~ 180 beat/min.
Accuracy: Pressure; ±3mmHg, Pulse; ±5%
Inflation: Automatic inflation at suitable level by internal pump
Deflation: Electromagnetic valve
Memory function: 30 data (data, time, blood pressure values, pulse)
Clock: ±20 seconds a month, Full Auto-calendar, Alarm
Power source: 4 “AA” (LR6) Alkaline batteries
Battery life: Approx. 500 times/LR6 (once a day, 170mmHg, room temp. 22°C)
Rated voltage: 6V DC
Working temp. & humidity: +10°C ~ +40°C, 30 to 85%RH
Storage temp. & humidity: –20°C ~ +60°C, 10 to 95%RH
Outside dimensions: 183mm(W) × 199mm(D) × 80mm(H)
Weight: 740g (Apparatus, cuff and batteries)
Electric shock protection: Type B equipment
Accessories: Preformed Cuff, 4 “AA” (LR6) batteries, Instruction manual

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

English

— Eng 3 —

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.

Wind
the 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.

PRECAUTION FOR USE AND MAINTENANCE

• 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.

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 f ollo wing 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.

• 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.

• 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.

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

Precautions for use

• If you suffer from hear t 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 unw ell, 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 (ov er
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.

— Eng 4 —

CLOCK MODE

Manufacturer:

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

th

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

1. Default Time Indicating State and
Selection of Each Mode

• When the battery is installed, the time,
date and alarm are set as follows.
Date and time : January 1 1998,
12:00:00 AM
(12-hour system is selected)
Alarm : 12:00 AM (Turned off)

• Each time the time setting switch is
pressed, the alarm is turn ON or OFF
(See 11).

• If the mode switch is pressed, the meter is set to the 0
take-in state in the blood pressure meter mode.

• The alarm works only in the time indicating state.

• If the time correcting switch is pressed for approx. one
second, the meter is set to the alarm minute correcting
state.

2. Alarm Minute Correcting State

q Press the time setting switch until the

correct value of the minute is indi­cated.
(Each time the time setting switch is
pressed, the value of the minute is in­creased by one. The value of the
minute can be corrected in only the
forward direction. It can be corrected
quickly by keeping the time setting
switch pressed.)

w To correct the alar m hour, press the time correcting

switch, and the meter is set to the alarm hour correcting
state.

e Press the mode switch to finish correction.

3. Alarm Hour Correcting State

q Press the time setting switch until the

correct value of the hour is indicated.

(Each time the time setting switch is

pressed, the value of the hour is in­creased by one. The value of the hour
can be corrected in only the forward
direction. It can be corrected quickly
by keeping the time setting switch
pressed.)

w To correct the clock second, press the time correcting

switch, and the meter is set to the clock second correct­ing state.

e Press the mode switch to finish correction.

4. Clock Second Correcting State

q When the time signal of 00 second

sounds, press the time setting switch
to set the second to 00.

(If a value between 30 seconds and

59 seconds is corrected, the value of
the minute is increased by one. If a
value between 0 second and 29 sec­onds is corrected, the value of the
minute is not changed.)

w To correct the clock minute, press the time correcting

switch, and the meter is set to the clock minute correct­ing state.

e Press the mode switch to finish correction.

European Representative:

Name: WvW elektronische Geräte Vertrieb GmbH.
Address: Robert-Koch-Straße 20, D-80538 München,

GERMANY

AM

AMPM

AMPM

AMPM

English

— Eng 5 —

5. Clock Minute Correcting State

q Press the time setting switch until the

correct value of the minute is indi­cated.
(Each time the time setting switch is
pressed, the value of the minute is
increased by one. The value of the
minute can be corrected in only the
forward direction. It can be corrected
quickly by keeping the time setting
switch pressed.)

w To correct the cloc k hour , press the time correcting switch,

and the meter is set to the clock hour correcting state.

e Press the mode switch to finish correction.

6. Clock Hour Correcting State

q Press the time setting switch until the

correct value of the hour is indicated.
(Each time the time setting switch is
pressed, the value of the hour is in­creased by one. The value of the hour
can be corrected in only the forward
direction. It can be corrected quickly
by keeping the time setting switch
pressed.)

w T o correct the year, press the time correcting switch, and

the meter is set to the year correcting state.

e Press the mode switch to finish correction.

7. Year Correcting State

q Press the time setting switch until the

correct value of the year is indicated.
(Each time the time setting switch is
pressed, the value of the year is in­creased by one. The v alue of the year
can be corrected in only the forward
direction. It is increased from 1998 to
2097, then set to 1998 again. It can
be corrected quickly by keeping the
time setting switch pressed.)

w To correct the month, press the time correcting switch,

and the meter is set to the month correcting state.

e Press the mode switch to finish correction.

8. Month Correcting State

q Press the time setting switch until the correct value of

the month is indicated.
(Each time the time setting switch is pressed, the value
of the month is increased by one. The value of the month

can be corrected in only the forward

direction. It can be corrected quickly
by keeping the time setting switch
pressed.)

w To correct the day, press the time cor-

recting switch, and the meter is set to
the day correcting state.

e Press the mode switch to finish cor-

rection.

9. Day Correcting State

q Press the time setting switch until the

correct value of the day is indicated.

(Each time the time setting switch is

pressed, the value of the day is in­creased by one. The value of the day
can be corrected in only the forward
direction. It can be corrected quickly
by keeping the time setting switch
pressed.)

w To correct the 12/24-hour, press the time correcting

switch, and the meter is set to the 12/24-hour correcting
state.

e Press the mode switch to finish correction.

10. 12/24-hour System Correcting State

q Press the time setting switch to select

12-hour or 24-hour system.

(If the time setting switch is pressed,

system which is not currently selected
starts flashing.)

w Press the mode switch or time correct-

ing switch to finish correction. The
meter is set to the time indicating
state.

11. Turning ON/OFF the Alarm

q If the time setting switch is pressed while the bell mark

(alarm) is turned off, the set alarm time is indicated for

0.5 seconds, then the bell mark lights up.

AMPM

AMPM

AMPM

AMPM

AMPM

AMPM AM AMPM

Time

setting

switch

0.5 seconds

Time
setting
switch

— Eng 6 —

MEASUREMENTS

2. Attaching of Arm Cuff and Posture During
Measurement

Unfasten and open the cuff as shown

in the figure.

Wind the arm cuff around the left upper arm tightly so that
bottom edge of the cuff is positioned about 2 – 3 cm above
the elbow joint.

• When you will wind the cuff, please wind the cuff next

to the skin of 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 on top of the arteria as figure.

• Please make sure that the cuff is fastened tightly. Note

that uneven cuff winding will prevent proper measure­ment.

1. Selection of Measuring Mode

Insert the air connector from
the cuff into the tube socket
at the mainframe until it is
tightly connected.

Press on the mode switch.
While the time is indicated.

If the Mode switch is pressed, the
mark of “Q” lights up and the buzzer
sounds for one second.

After the mark of “Q” goes off, the
buzzer sounds three times at the in­terval of 100ms, then the meter is au­tomatically set to the state to wait for
pressurization.

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DIASTOLIC

PULSE/min

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2〜3cm

English

— Eng 7 —

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, since movement - artifacts may
falsify the measuring result.
Make measurements in either a seated or reclining pos­ture with the palm turned upward.

3. To Start the Measurement

Press the “START Switch”.
The arm cuff pressurizes when “START Switch” is pressed.
When a measurement need be made again, the time be­tween two measurements must be at least ten minutes.

After the “START Switch” is pressed, the
pressure is automatically heightened to
the level for measurement of the blood
pressure.

When the pressure lowers by 15mmHg
after pressurization stops, the mark of
“Q” lights up.

電子血圧計CHー491E

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DIASTOLIC

PULSE/min

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SET

CLEAR

RECALL

If the pulse is recognized, the pressure
is shifted to the diastolic blood pressure
display section and changed over, syn­chronized with the pulse.

The buzzer sounds for two seconds,
then the systolic blood pressure, dias­tolic blood pressure and pulse are indi­cated and the air is discharged. The
measured data are registered automati­cally , as long as they are not error. If the
measured data do not need to be stored,
press the memory clear switch for 1 sec­onds or more while the measured data
are indicated.

4. Memory Recall

q If the memory recall switch is pressed, the memory No.

is indicated for about 0.5 seconds, then the measured
values (blood pressure, date of measurement) are indi­cated.

w Each time the memory recall switch is pressed and re-

leased quickly, the memory data are indicated one by
one. If the memory recall switch is kept pressed, the
memories are fed fast and only the memory Nos. are
indicated.
When the memory recall switch is released, the memory
date are indicated.

e When a new data is registered after 30 data, the oldest

data is deleted and the newest one is registered.

電子血圧計CHー491E

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DIASTOLIC

PULSE/min

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CLEAR

RECALL

— Eng 8 —

If the memory recall switch is pressed, the average values of the
all stored data (systolic blood pressure, diastolic blood pressure,
and pulse) are indicated first.

If the memory recall switch is pressed further, the newest data
are indicated.

If the memory recall switch is pressed further, the old data are
indicated in the order of the time series.

5. Deletion of Memory Data

q Press and hold the Memory clear switch for one second

or longer while a data to be deleted is indicated on the
digital indicator unit. After that data is deleted, the b uzzer
sounds for 100ms.

w T o clear the all memory data, including the average val-

ues, press and hold the Memory clear switch for eight
seconds.

6. Graphic Indication

q Data are indicated graphically only in the Measurements

mode.

5

40

120

200

10 15 20 25 30

PM

5

40

120

200

10 15 20 25 30

5

40

120

200

10 15 20 25 30

PM

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DIASTOLIC

PULSE/min

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CLEAR

RECALL

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w The data at the left end has No. 1, and the newest data

is at the right end.

Caution:

— A new blood pressure is registered automatically after it is

measured.

— Memory recall function does not work during automatic infla-

tion and blood pressure measurement are being made.

— By depressing of “Reset terminal” on the rear side of instru-

ment, data (blood pressure value, pulse and date) are all
cleared.

7. Automatic Mode Change Function

The blood-pressure meter is automatically set in the clock
mode approximately 3 minutes after the blood pressure is
measured.

8. Battery Replacement

If the batteries become weak, the “ ” mark will appear in
the display, indicating that batteries should be replaced with
new one. Dispose of the dead batteries properly to preserve
the environment.

Remove the battery cover at
mainframe and replace the four
pieces of batteries.
Type “AA” battery or equivalent is
suitable for this blood pressure
monitor.
Finish the battery replacement
procedure within 2 minutes. If it
takes more than 2 minutes to fin­ish the procedure, the saved data
will be lost. It is recommended to
take notes of important data be­fore replacing the battery.

Batteries are dead.

Battery will be dead soon.
This is rough indication and dispersed,

depending on batteries.

Batteries are normal.

* Depending on the battery,

may not be on the display.

English

— Eng 9 —

DESCRIPTION OF DISPLAY MARKS

DISPLAY MARK CONDITION/CAUSE CORRECTIVE ACTION

Measurement is begun, but the pressure was in­sufficient.

Appears when the blood pressure could not be
measured accurately. (Some noises were de­tected by the movement of arm during measure­ment.)

Appears when the pulse could not be measured.

Appears when the batteries become weak.

Device has a trouble.

Repeat measurement again.

Repeat measurement again.

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

Replace the batteries.

Ask purchased shop.

●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]