Citizen CH-308B User Manual

INSTRUCTION MANUAL

FOR

DIGITAL BLOOD PRESSURE MONITOR

REF CH-308B

IDENTIFICATION OF PARTS

English

Pumping bulb tube

Cuff

Exhaust button

Air connector

Cuff tube

Pumpin bulb

- Eng 1 -

Systolic blood pressure display section

Diastolic blood pressure/Pulse display section

POWER switch

Air connector

Battery cover

SPECIFICATIONS

Model Number CH-3O8B
Measuring Principle Oscillometric Method
Measurement Localization Left Upper Arm
Cuff Soft cuff
Aim Circumference Range 22.0 to 32.0 cm
Measurement Range Pressure 0 - 280 mmHg

Accuracy Pressure ±3 mmHg

LCD Indication Pressure Systolic Blood Pressure: 3 digits

LCD Viewing Size 19.5(H)

Switch “POWER” switch
Inflation Manual Inflation by Pumping Bulb
Deflation Air release system
Exhaust Quick Exhaust Valve
Rated Voltage 6VDC
Power Source 4 “AA” Size Batteries
Power Consumption 0.1 W
Battery Life Approx. 1000 time Manganese (160 mmHg, 1 time / day, 22°C)
Automatic Power off Function Approx. 3 min. (after activated)
Memory Function One Memory
Dimensions 123(W)
Weight Approx. 410g (Apparatus and batteries)
Operating Environment Temperature 10 to 40°C

Storage Environment Temperature –20 to 60°C

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

Pulse 40 - 200 Pulse

Pulse ±5% of reading

Pulse Pulse Rate: 3 digits
Marks Measuring: Exhaust: Re-Measure: Battery:

Diastolic Blood Pressure: 3 digits

Digit Size 12.9(H)

Humidity 30 to 85% RH

Humidity 10 to 95% RH

I

Min

Q ▼ ▲

× 63.0(W) mm
× 6.0(W) mm

× 95(D) × 44(H) mm

- Eng 2 -

Alternatively

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 a washing

GENERAL REMARKS

General Remarks on blood pressure measure­ment

• If the cuff is to be deflated quickly, depress “Exhaust button”.

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

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

• Self-measurement is no therapy! In no case the dosage of medi­caments ordered by the doctor may be changed.

• In preparation 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 result.

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

• Do not be too impressed by the result of one measurement Keep
a record of blood pies sure variations. Many reading tell a story

• Emotional stress may tend to cause blood pressure to rise.

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

• Next figure shows the classification of blood pressure according
to WHO-standard.

SYSTOLIC

(mmHg)

180

160

140

Grade 1 Hypertension (mild)

High-Normal

130

Normal

120

Optimal

Definition and Classification of Blood Pressure Lebels

Hypertension (severe)

Hypertension (moderate)

80 85 90 100 110

- Eng 3 -

DIASTOLIC

(mmHg)

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 ate in a worrisome or
irritated stats , suffering from lack of sleep or constipation, or
after exercise ore meal.

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

• DO NOT measure blood pressure after bathing or drinking.

Wind the cuff around

PRECAUTION FOR USE AND MAINTENANCE

• 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 try to 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 of talk.

• DO NOT measure blood pressure alter the cuff has been on for a
few minute, as your arm will have built up higher blood pres­sure, and your will not get 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 meter where it will be exposed
to direct sunlight, high temperature (over 60°C), low tempera­ture (below –2O°C), high relative humidity (over 95%) or in a
dusty place.

• DO NOT expose the blood pressure meter to undue force or vi­bration, or drop it.

- Eng 4 -

• NEVER wipe the meter with thinner or benzene, as they may
damage it.

• Dispose batteries according to local regulations.

• 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,

• When the meter is very dirty, wipe it clean with a cloth moist­ened with a neutral detergent, and then wipe it with a dry cloth.

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

Nature and frequency of maintenance:

This products is designed for use over an extended period of
however, it is generally recommended that it be inspected
years to ensure proper function and performance.

time;

every two

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

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

- Eng 5 -

English

MEASUREMENTS

3.1 Turn Power On

Push the cuff tube and Pumping bulb tube over the air connectors.

Pumping bulb tube

Cuff Tube

Press the “Power” switch for
Power on.

PULSE / min

SYSTOLIC mmHg DIASTOLIC mmHg

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

PULSE / min

SYSTOLIC mmHg DIASTOLIC mmHg

After all display marks are disappeared, the last measured systolic
and diastolic blood pressure values are displayed.
(Value of Pulse is not memorized nor displayed).

Memory function works on for approximately 2 second or during
depressed the “Power” switch.

PULSE / min

SYSTOLIC mmHg DIASTOLIC mmHg

After memorized blood pressure value is disappeared, deflation
mark “▼” appears.

PULSE / min

SYSTOLIC mmHg DIASTOLIC mmHg

If there is some air remaining in the cuff, release air with the ex­haust button until the “0” appears. The buzzer beeps three times.

The unit is now ready to take new measurement.

- Eng 6 -

3.2 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 – 3cm above the elbow joint.

• When you will wind the cuff, please wind the cuff next to the skin
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.)

• Cuff tube should be placed on the inside of your arm on top of
the arterial as figure.

• In no case the metal ring of cuff should be situated on the inside
of the upper arm.

• Please make sure that the cuff is fastened tightly. 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, since movement – artifacts may falsify the measuring
result.

Make measurements in either a seated or reclining posture with
the palm turned upward.

- Eng 7 -

English

3.3 Pressurize the cuff

PULSE / min

SYSTOLIC mmHg DIASTOLIC mmHg

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

Note: At pressure of 140,170, 200, 240 mmHg, the buzzer beeps
two times.

PULSE / min

SYSTOLIC mmHg DIASTOLIC mmHg

When pressurization is completed, the automatic the automatic
air release system will gradually reduce cuff pressure, and Mea­suring Mark “Q” will appear on the display indication that mea­surement is in progress.

PULSE / min

SYSTOLIC mmHg DIASTOLIC mmHg

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 time as pulse rate.

PULSE / min

SYSTOLIC mmHg DIASTOLIC mmHg

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

After completion of measurement, the mark “▼” appears.

PULSE / min

SYSTOLIC mmHg DIASTOLIC mmHg

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

- Eng 8 -

3.4 Press the exhaust button

PULSE / min

SYSTOLIC mmHg DIASTOLIC mmHg

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

3.5 Power off

Press the “POWER” switch to turn off,

3.8 Battery Replacement

Battery cover

Battery

English

3.6 Subsequent measurement

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

3.7 Auto Power off Function

If the unit is left on after measurement, automatic Power-off Func­tion turns the power off after approximately 3 minutes. To con­tinue measurement press the “POWER” switch turning the unit
on.

If the battery becomes weak, the “ ” mark will appear in the
display, indicating that battery should replaced with new one.

Remove the battery cover at mainframe and replace the four pieces
of batteries. Type “AA” battery or equivalent is suitable for this
blood pressure meter.

- Eng 9 -

DESCRIPTION OF DISPLAY MARKS

DISPLAY MARK CONDITION/CAUSE CORRECTIVE ACTION

PULSE / min

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

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE / min

The cuff was inflated to more than 280 mmHg.

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE / min

Appears when the blood pressurecould not be mea­sured accurately.

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE / min

Appears when the pulse could not be measured ac­curately.

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE / min

Appears when the battery becomes weak.

SYSTOLIC mmHg DIASTOLIC mmHg

PULSE / min

Device has a trouble.

SYSTOLIC mmHg DIASTOLIC mmHg

- Eng 10 -

Raise the set pressure value by higher
level.

Exhaust the air within the cuff.

Repeat measurement again.

Replace the battery.

Ask purchased shop.