Citizen CH-618 User manual

CH-618
1101

Contents
................
01....... Blood Pressure Monitor Intended Use
02....... 1. What is blood pressure ?
02....... 2. Why is it useful to measure blood
pressure at home ?
.......... A. WHO blood pressure classifications
.......... B. Variations in blood pressure
04....... 3. Important information before use of the
unit
06....... 4. Device description
.......... A. Name of the parts
.......... B. Description of display symbols
08....... 5. Changing Batteries
08....... 6. Attaching pressure cuff
09....... 7. Correct measurement position
A

Contents
................
10....... 8. Symbol Difinitions.
12....... 9. How to measure.
.......... A. Inserting batteries in position.
.......... B. Setting date and time.
.......... C. Steps to take blood pressure
measurement.
.......... D. Storing recalling and erasing
measurement data.
.......... E. To change batteries.
15....... 10. Maintenance.
15....... 11. Safe-keeping.
15....... 12. To prevent malfunction.
16....... 13. Warning.
17....... 14. Specifications.
B

MEDICAL DISCLAIMER
This manual and product are not meant to be a
substitute for advice provided by your doctor or other
medical professional.
You are not to use the information contained herein,
or this product for diagnosing or treating a health
problem or prescribing any medication. If you have or
suspect that you have a medical problem, promptly
consult your healthcare provider.
Measures human's Systolic blood pressure, Diastolic blood
pressure and heart rate on wrist by oscillometric measurement
method.
The product is recommended for use by people over the age of
18 and is for home use and not clinical use.
Blood Pressure Monitor Intended Use:
1

Blood pressure is a measurement of the force of blood flowing
against the walls of the arteries. Arterial blood pressure is
constantly changing during the course of the cardiac cycle.
The highest pressure in the cycle is called the systolic blood
pressure, the lowest is the diastolic blood pressure. Both
pressure readings, the systolic and the diastolic are necessary
to enable a physician to evaluate the status of a patient's blood
pressure. Many factors such as physical activity, anxiety or the
time of day, can influence your blood pressure. Blood pressure
is typically low in the morning and increases from the afternoon
to the evening. It is lower in the summer and higher in the
winter.
1. What is blood pressure ?
Having one's blood pressure measured by a doctor in a
hospital or a clinic, and a group health checks, tend to stimulate
nervousness in the subject and may even create high blood
pressure. Also varies blood pressure in accordance with a
variety of conditions and so judgment is not possible on the
basis of a single measurement.
The blood pressure measured first thing in the morning after
getting up, before taking any food and with the subject still, is
known as the fundamental blood pressure. In practice it is rather
difficult to record the fundamental blood pressure, but to come
2. Why is it useful to measure blood pressure
at home ?
2

as near as possible to measuring the blood pressure in an
environment that is close to this, is why it is useful to take the
measurement at home.
A. WHO blood pressure classifications
Standards for assessment
of high or low blood
pressure without regard to
age, have been established
by the World Health
Organization (WHO), as
shown in the chart. * Figure No.1
B. Variations in blood pressure
The graph below illustrated
the variations in blood
pressure over a whole day
with measurement taken
every five minutes.
* Figure No.2
Individual blood pressures vary greatly both on a daily and a
seasonal basis. These variations are even more pronounced
in hyper tense patients. Normally the blood pressure rises
while at work and is at its lowest during sleeping period.
(Hyper tense: means a person who has high blood
pressure symptom.)
3

The thick line represents sleep. The rise in blood pressure at 4
PM (A in the graph) and 12 PM (B in the graph) correspond to
an attack of pain.
Please rest for at least 5~10 minutes before taking the
measurement.
To allow your blood vessels to return to the condition prior to
taking the measurement, please wait at least 3~5 minutes
between measurements. You may need to adjust the wait
time according to your personal physiological situation.
If you have one of the circulatory problems as arteriosclerosis,
diabetes, liver disease, kidney disease, severe hypertension,
peripheral circulation......, please consult your doctor or
healthcare professional before using the devices.
Wait 30 ~ 45 minutes before measurement if you’ve just
consumed caffeinated beverages or smoked cigarettes.
Blood pressure measurements should be interpreted by a
physician or trained health professional who is familiar with
your medical history. By using the unit regularly and recording
the results for your physician to interpret, you keep your
physician informed of the continuing trends in your blood
pressure.
Wind the cuff snugly around your wrist and the cuff must be at
the same level as your heart.
Do not vibrate the unit during measurement, or the proper
measurement will not be achieved.
3. Important information before use of the unit
4

Perform measurement quietly in a relaxed position.
Do not wind the cuff over jacket or sweater sleeve, or
measurement cannot be done.
Keep in mind, that blood pressure naturally varies from
time to time throughout the day and also is affected by lots
of different factors such as smoking, alcohol consumption,
medication and physical activity.
People with a condition that causes circulatory problems
(diabetes, kidney disease, arteriosclerosis or poor peripheral
circulation) may get lower readings with this monitor that
with a blood pressure monitor that is used on the upper arm.
Please consult your physician to determine if your wrist blood
pressure accurately reflects your actual blood pressure.
Blood pressure measurement determine with the unit are
equivalent to those obtained by a trained observer using
the cuff / stethoscope auscultation method. Within the limits
prescribed by the American National Standard for Electronic
or Automated Sphygmomanometers.
This product is not suitable for pregnant women.
5

A. Name of the parts
4. Device description:
6
mmHg
mmHg
/min
Pulse
USER
DIA
SYS
START
STOP
M
PM
2
1
:
AVG
SETTING BUTTON
FUNCTION
BUTTON
LCD DISPLAY
START/STOP
BUTTON
( Stand-by)
RECALL
MEMORY
BUTTON
WRIST CUFF
CARRYING CASE
ALKALINE
BATTERY
UM-4 (AAA) 1.5 V x 2 * Figure No.3
M

PM
2
1
:
AVG
B. Description of display symbols
HEART RATE SYMBOL
LAST 3 READING
AVERAGE
LOW BATTERY
SYMBOL
HOUR：MINUTE
MONTH/DATE
SYSTOLIC
RATE
DIASTOLIC
RATE
HEART RATE
7
(ALSO REPRESENTS AS YEAR
UNDER SETTING MODE)
USER 1
USER 2

5. Changing batteries
* Figure No.4
A. Wrap the pressure cuff around the wrist.
a. The display of the unit should be
placed on the palm side of the wrist.
b. The wrist should be bare.
6. Attaching pressure cuff
8
Remove the battery cover at the left side of the unit and insert
batteries into the battery compartment in accordance with
ribbon strip as shown, taking extreme care that the polarities +
and - are observed.
Important notice: to take the batteries out easily, just pull the
ribbon strip for help.
* Figure No.5
1 cm
(0.4 inch)

B. Fasten the pressure cuff snugly.
a. Do not pull strongly on the pressure
cuff.
b. Do not make the pressure cuff too
tight.
It is extremely important for the measured values, that the cuff
is at the same height of the heart.
Higher or deeper position will give deviations from the true
value.
7. Correct measurement position
Measurement while sitting down:
a. Place your elbow on a table or other object
(such as our carry case).
b. Use the armrest to position the arm so
that the pressure cuff is at the same
height as the heart.
c. Relax your hand with the palm facing up.
* Figure No.6
9
* Figure No.5-1
13.5 ~ 19.5 cm
(5.3 ~ 7.7 inch)

SYMBOLS
8. Symbol Definitions
Definitions
Heart Rate
Symbol
Last 3 Reading
Average
This symbol appears when the battery power
is excessively low or the polarity reverses.
ᇄWe suggest you replace all batteries with
new ones, and make sure the +/- polarities
are properly positioned.
Once pulse is detected, the symbol flashes
with each pulse beat.
ᇄOur suggestion:
Please do not talk or move during
measurements.
This symbol appears when LCD displays
average value of last 3 readings.
10
AVG
Low Battery
Symbol
1
2
User 1
User 2
Appears when the monitor is operated by
User 1.
Appears when the monitor is operated by
User 2.

Cuff has been placed
incorrectly.
SYMBOLS/
SYMPTOMS CONDITIONS/ CAUSES INDICATION/ CORRECTION
Measuring
Error Symbol
Measuring
Error Symbol
Note: If "EP" appears on the display, just return the device to
your local distributor or importer.
Shaking of the wrist
with the cuff on.
Inflation pressure
exceeding 300
mmHg.
Error determining
measurement data.
Wrap the cuff properly
so that it is positioned
correctly.
Switch the unit off,
then measure again.
11
Measuring
Error Symbol
Measuring Error
Symbol shown
on display
or the blood
pressure value
is displayed
excessively low
or high.
Air circuit abnormality.
Did you talk or move
during measurement?
Measure again.
Measure again.
Measure again. Keep
wrist steady during
measurement.

a. Open battery cover.
b. Refer to the picture in positioning batteries. (Figure No.4)
c. All LCD segments appear on the display in 3 seconds.
9. How to measure
A. Inserting batteries in position:
a. Press " " button over 2 secs ("year" starts flashing)
Press " "
button to set the correct year (2011,2012,…2026)
b. Press " " button ("month" starts flashing)
Press " " button to set the correct month (1,2,3,.....12)
c. Press " " button again ("date" starts flashing)
Press " " button to set the correct date
d. Press " " button again ("hour" starts flashing)
Press " " button to set the correct hour in 12-hour
format
e. Press " " button again ("minute" starts flashing)
Press " " button to set the correct minute (0,1,2,3,.....59)
f. Press " " button again to switch to normal time
(month, date, hour and minute appear on the display)
B. Setting Date and Time:
a. Wrap the cuff around the wrist (Refer to Wrapping of Wrist
cuff as Figure No. 5)
b. Sit upright on the chair to have correct posture. (Refer to
Correct Posture in Taking Blood Pressure as (Figure No. 6)
C. Steps to take blood pressure measurement:
12

c. Press" "button. Press " " button to select USER
(  ) . Press " " button again. All elements
display '888' in 3 seconds. Afterward, displays the updated
time. The measuring blood pressure symbol will flash on
the display and then the air pressure will automatically
pump up to 195 mmHg. If blood pressure tends to be on
the high level, the air pressure will automatically increase
to the required level for measurement. * Do not move or
talk in the midst of taking blood pressure measurement.
d. After the air pressure is increased, it will slowly decrease.
When the pulse rate is detected, HEART RATE symbol
will start flashing.
D. Storing, recalling and erasing measurement data:
a. Storing data: 60 measurement values for 2 users each (120
memory in total)
After each blood pressure measurement, the Systolic rate,
diastolic rate, heart rate and the time & date of specific day
will be automatically stored. The memory holds the latest
60 measurement data. If more than 60 measurements, the
memory will automatically clear out the earliest data.
13
e. After taking blood pressure measurement, the Systolic rate,
Diastolic rate and pulse rate will be on the display for 1 minute.
*Note!
• If the cuff does not stop inflating, remove the cuff at once.
• To interrupt the measurement, you may press the button.
The cuff will deflate immediately after a button is pressed.
STOP
START
1
2
STOP
START
STOP
START

E. To change batteries:
When " " show up on the display, the battery is weak.
Change the batteries or it will not be possible to take blood
pressure measurement. All batteries used must be the same
type. Do not mix alkaline, standard(carbon-zinc) or rechargeable
(cadmium) batteries. Do not mix old and new batteries.
b. Recalling data:
(1). Press " M " button.If there is no data in the memory,
only TIME/DATE and USER symbol will appear on the
display. If yes, the first reading will be the average of
the latest 3 measurements. (The average value dose
not appear if there are two or fewer measurements
stored in memory.)
(2).
Press " M " button again, the latest measurement will
appear with the number as well as the recording date
and time. The data called up on the display is numbered
accordingly. After reading the recalled data as rotator 60-set
of the stored data, press " M " to switch to normal time.
(3). To discontinue in the midst of reading of the data,
press " " button.
(4).You can select USER memory ( ) by
pressing " " button.
c. Erasing data:
(1). Press " M " button and press " " to select USER
( ).
(2). Press hold " " and " " button to clear memories.
" CLA " show up on the display for 3 seconds.
14
1
2
1
2
STOP
START

Use a piece of cloth with water or mild cleansing agent to
clean the case and then use a piece of dry cloth to wipe it dry.
Do not use gas or any strong cleansers in cleaning.
When the unit is not to be used for a long time, remove the
batteries. (Leaking of battery liquid can cause trouble)
10.MAINTENANCE:
Always keep the unit in the carrying case after its use.
Do not put the item directly under the sunlight, in high
temperature, or humid and dusty places.
Do not store in extremely low (less than - 20 °C) or high(more
than 70 °C) temperature.
11.SAFE-KEEPING:
Do not in any way twist the wrist cuff.
Do not start the air pressure when the wrist cuff is not
wrapped around the wrist.
Do not attempt to disassemble or change any parts of the
monitor including wrist cuff.
Do not drop the product or put it through strong impact.
12.TO PREVENT MALFUNCTION:
15

The device measures the blood pressure of adult only.
The device is not supposed to be used if your wrist has any
wound or injury.
In the event of the cuff pumping up and not stopping, please
open the cuff at once.
To ensure precise measurement reading, recalibration of
the device is recommended after 2 years from the date of
purchase. Shipping plus handling cost and recalibration
service fee shall be charged accordingly.
13.WARNING:
16
Limited Warranty
This device is warranted to be free from manufacturing
defects for a period of 1 year from the date of purchase.
Within the warranty period, should there be any
manufacturing defect found and repair is needed, please
contact your local distributor accordingly.
Please note warranty does not cover damage caused by,
including but not limited to: misuse or abuse; accident;
the attachment of any unauthorized accessory; alteration
to the product; improper installation; unauthorized repair
or modification; improper use of electrical/ power supply;
dropped product; failure to follow required maintenance and
safe-keeping; transportation damage.