INSTRUCTION MANUAL
Automatic Wrist
Blood Pressure Monitor
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Model
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IW2
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Notes on Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Suggestions for Measuring Blood Pressure . . . . . . . . . . . .5
Initial Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Battery Installation/Replacement . . . . . . . . . . . . . . . . .6
How to Set the Date and Time . . . . . . . . . . . . . . . . . . .8
Correct Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
How to Apply the Wrist Cuff . . . . . . . . . . . . . . . . . . .10
How to Take a Reading . . . . . . . . . . . . . . . . . . . . . .11
How to Use the Memory Function . . . . . . . . . . . . . . .14
How to Modify the Settings . . . . . . . . . . . . . . . . . . . .16
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . .20
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
1
Introduction
Thank you for purchasing the OMRON IW2 Automatic Wrist Blood Pressure
Monitor.
This remarkable, compact and easy to use instrument is ideal for people who
frequently monitor their own blood pressure. The small, pre-formed wrist cuff
is very convenient and easy to apply.
With the push of a button the OMRON Wrist Blood Pressure Monitor
measures your blood pressure and pulse and displays the reading on a clear
digital panel. Perfect for quick, easy readings at home, at work, and while
traveling. It also stores up to 90 sets of measurements in memory and displays
an average reading based on the three most recent measurements.
The OMRON Wrist Monitor uses the oscillometric method of blood pressure
measurement. This means the monitor detects the pulse wave vibrations in the
artery of your wrist and converts the oscillations into a digital reading.
Clinical research has proven a direct relationship between blood pressure in
the wrist and blood pressure in the arm. Changes in wrist blood pressure
reflect changes in arm blood pressure because the arteries in the wrist and the
arm are connected.
Frequently measuring the blood pressure in your wrist will provide you and
your doctor with an accurate indication of changes in your true blood
pressure.
Please read this instruction manual thoroughly before using
the unit. For specific information about your own blood
pressure, consult your doctor.
2
Notes on Safety
The OMRON IW2 is not suitable for measuring the frequency of cardiac
pacemakers.
You should never change the dosage of medication prescribed by your doctor.
People with poor peripheral circulation may find that results for measurements
taken at the wrist vary from those taken on the upper arm.
Use the OMRON IW2 only for yourself.
Caution
Self-diagnosis of measured results and treatment are dangerous. Please follow
the instructions of your doctor.
Do not use the unit on infants or persons who cannot express their consent.
Do not use the unit for any purpose other than measuring blood pressure.
Do not use a cellular phone, or other devices that emit electromagnetic fields,
near the unit. This may result in incorrect operation of the unit.
Battery liquid may leak and damage the main unit. Please observe the
following points.
• When you are not going to use the unit for a long period of time
(approximately three months or more), take out the batteries.
• Replace old batteries with new ones immediately.
• Do not use old and new batteries together.
• Do not insert the batteries with their polarities incorrectly aligned.
3
Main Unit
Display
Battery Compartment
Know Your Unit
Wrist Cuff
MEM Button
START/STOP Button
SET Button
Display
Systolic Blood Pressure
Diastolic Blood Pressure
Battery Low Symbol
Cuff Deflation Symbol
Right Wrist
Measurement Symbol
Position Sensor Alarm Symbol
Accessories
Two AAA Alkaline Batteries
Heart Symbol
(Flashes when the monitor
is at the correct position.)
Memory Value Symbol
(Displayed when viewing
values stored in memory.)
Average Value Display
(Displayed when viewing
the average value for last
three measurements.)
Irregular Heartbeat
Symbol
Date/Time Display
Pulse Display
Storage Case
4
Suggestions for Measuring Blood Pressure
Avoid eating, drinking, smoking, or exercising for at least 30 minutes before
taking a measurement. You should also try to measure your blood pressure at
the same time each day.
Measurement should be taken in a quiet place and you should be in a
relaxed, seated position.
1. Align the wrist cuff with the level of your heart
and gently support your left arm with your right
hand. Do not place your right hand on the cuff
itself.
2. Press the START/STOP button.
Remain quiet, sit still and do not talk during the
measurement.
Notes:
* Always wait at least 2-3 minutes before taking another blood pressure
measurement.
You may require more rest time between readings depending on your
individual physiological characteristics.
* Only use the IW2 to measure your own blood pressure since the results
of measurements are stored in memory.
* Always wrap the wrist cuff around your wrist before starting to take a
measurement.
* Do not measure your blood pressure while you are in a vehicle.
* Always measure your blood pressure on the same wrist.
5
Battery Installation/Replacement
Initial Set-Up
1. Remove the battery cover by pulling it off in the
direction of the arrow.
2. Insert two AAA batteries in the battery
compartment, so that their polarities match the
polarities of the battery compartment as
indicated.
3. Replace the battery cover.
Note:
* Make sure that the battery cover is securely in
position.
Caution:
* Use two identical 1.5V AAA batteries.
Note:
* The measurement values continue to be stored in memory even after the
batteries are replaced.
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Battery Installation/Replacement
Initial Set-Up
Battery Life & Replacement
• High performance alkaline dry cell batteries (2 “AAA”) should be good for
approximately 300 readings.
• Battery life varies with ambient temperature, battery life is shorter under cold
conditions such as during the winter.
• The dry cell batteries provided are for monitoring and may run down before
300 readings.
• If the battery low symbol blinks while measuring or if pressure is not applied
when the START/STOP button is pressed, replace both batteries (use the
same type).
• Holding the START/STOP button down may shorten battery life. To avoid
pressure on the button when transporting or storing, use the case provided.
• Dispose of batteries according to applicable local regulations.
Battery Installation/Replacement
7
Initial Set-Up
How to Set the Date and Time
Your blood pressure monitor automatically stores up to 90 measurement values
in its memory and calculates an average value based on the last three
measurements. To make use of the memory and average value function:
• Set the monitor to the correct date and time before taking a measurement
for the first time.
• If the batteries have been removed for a long period of time, the date and
time setting will need to be reset.
1. When the batteries are installed for the first time,
the year digits (2004) will flash on the display
when you turn on the monitor.
Note:
* The range for the year setting is 2004 to 2030.
If the year reaches 2030, it will return to 2004.
* If you need to reset the date and time, press the SET button until the
setting you want to adjust appears on the display, then press the MEM
button to change the setting.
2. Press the MEM button to advance the digits one
at a time.
Note:
* If you hold down the MEM button, the digits
will advance rapidly.
3. Press the SET button to confirm the setting when
the desired number appears on the display.
The year setting is set and the month digits will
flash.
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How to Set the Date and Time
Initial Set-Up
4. Repeat steps 2 and 3 to set the month and date (day).
5. Repeat steps 2 and 3 to set the hour and minutes for the time.
Note:
* The monitor will automatically turn itself off after you press the SET
button to confirm the minute setting.
How to Set the Date and Time
9
Correct Usage
How to Apply the Wrist Cuff
1. Roll up your sleeve so that the monitor is in direct
contact with skin. Do not apply over clothing.
Make sure that your sleeve is not too tight and
does not constrict the flow of blood in your arm.
2. Place the wrist cuff over your left wrist with your left thumb facing upward.
3. Hold the bottom part of the wrist cuff and wrap it around the wrist while
pulling so that it fits comfortably.
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Make sure that the wrist cuff does not cover the protruding part of the
wrist bone (ulna) on the outside of the wrist.
Unless the wrist cuff is wrapped securely around the wrist, it may not be
possible to take correct measurements.
4. The remaining part of the wrist cuff can be
conveniently folded back out of the way.
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Taking measurements on the right wrist
Measurements can also be made on the right wrist.
Fit the monitor on the right wrist as shown.
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START
STOP
SET
How to Apply the Wrist Cuff
Correct Usage
How to Take a Reading
1. Sit comfortably, hold your arm across your chest
and relax.
2. Press the START/STOP button.
3. Hold your arm across your chest so that your fingers are touching the
opposite shoulder.
Blip Blip
Adjust the height of your wrist until the position sensor alarm beeps slowly.
When the monitor senses that your arm is in the correct position, the wrist
cuff will automatically start to inflate and measurement starts.
Blip Blip
Beep Beep
Notes:
* If your wrist is too low or too high, the position sensor alarm will emit a
series of two short bleeps similar to a heartbeat.
* Sit still and do not talk or move until the measurement is completed.
* Keep the monitor at heart height until the measurement is completed.
* To stop measurement, press the START/STOP button at any time during
measurement.
How to Take a Reading
11
Correct Usage
4. After the monitor has detected your
blood pressure and pulse rate, the
cuff automatically deflates and your
blood pressure and pulse rate are
displayed.
Note:
* The time and date of the measurement are displayed alternately.
5. Press the START/STOP button to turn off the
monitor.
If you forget to turn off the monitor, it will shut
itself off automatically after two minutes.
Alternating display
Important:
* Your blood pressure monitor includes an irregular hear tbeat feature.
Irregular heartbeats can influence the results of the measurement. The
irregular heartbeat function automatically determines if the
measurement is usable or needs to be repeated. If the measurement
results are affected by irregular heartbeats but the result is valid, the
result is shown together with the irregular heartbeat symbol (). If
the irregular heartbeats cause the measurement to be invalid, no result
is shown. If the irregular heartbeat symbol ()is shown after you
have taken a measurement, repeat the measurement. If the irregular
heartbeat symbol ()is shown frequently, please notify your doctor.
Note:
* Do not use this monitor to measure blood pressure for more than one
person since the measurement values are automatically stored in
memory and an average value based on the last three measurements is
calculated.
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How to Take a Reading
Correct Usage
What is Irregular Heartbeat?
An irregular heartbeat is a heartbeat
rhythm that varies by more or less
than 25% from the average
heartbeat rhythm detected while the
unit is measuring the systolic and
diastolic blood pressure.
If such an irregular rhythm is
detected more than twice during
measurement, the irregular
heartbeat symbol ( ) appears on
the display when the measurement results are displayed.
Blood pressure
Blood pressure
Normal Heartbeat
Pulse
Irregular Heartbeat
Pulse
Short
Long
What is Arrhythmia?
A heartbeat is stimulated by electrical signals that cause the heart to contract.
Arrhythmia is a condition where the heartbeat rhythm is abnormal due to
flaws in the bio-electrical system that drives the heartbeat. Typical symptoms
are skipped heartbeats, premature contraction, an abnormally rapid
(tachycardia) or slow (bradycardia) pulse. This can be caused by heart
disease, aging, physical predisposition, stress, lack of sleep, fatigue etc.
Arrhythmia can only be diagnosed by a doctor through a special
examination.
Whether the appearance of the irregular heartbeat symbol ( ) in the results
indicates arrhythmia or not can only be determined by an examination and
diagnosis by your doctor.
If the irregular heartbeat symbol ( ) is shown frequently, please notify your
doctor. Conducting self-diagnosis and treatment based on measurement results
is dangerous. Be sure to follow the instructions of your doctor.
How to Take a Reading
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Correct Usage
How to Use the Memory Function
This monitor has a memory capable of storing 90 sets of readings. Every time
you complete the measurement, the monitor automatically stores blood
pressure and pulse rate. The monitor also displays an average reading based
on the measurements from the three most recent readings.
Notes:
* To ensure that the measurement results are recorded correctly, make sure
that the date and time are set correctly before taking a measurement.
* When 90 sets of readings are stored in memory, the oldest set will be
deleted to store a new set.
* The date and time of stored readings will be alternately displayed.
To View the Average Value
Press the MEM button.
To View Previous Readings Stored in Memory
1. Press the MEM button, while the average reading is displayed, to view
readings stored in memory from the most recent to the oldest.
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How to Use the Memory Function
Correct Usage
2. Press the MEM button repeatedly to cycle through the readings.
3. Press the SET button, while the average reading is displayed, to view
readings from the earliest stored in memory.
4. Press the SET button repeatedly to cycle through the readings.
To Delete All Values in Memory
You cannot delete the stored readings partially, all readings in the monitor will
be deleted.
To delete stored readings, press the MEM button and the START/STOP button
simultaneously, all readings will be deleted.
How to Use the Memory Function
15
How to Modify the Settings
You can modify the options for the various settings of your monitor. This is
done by pressing the SET button to select a setting, then pressing the MEM
button to select the options for that setting. After selecting a setting, press the
START/STOP button to turn the power off.
Turning the Position Sensor On/Off
1. Press the SET button until the Position Sensor
Symbol ( ) appears on the display.
2. Press the MEM button to select “on” or “oFF”. When “on” is selected, the
monitor displays symbols to indicate how close your wrist is to the correct
measuring position.
Setting the Position Sensor Alarm
1. Press the SET button until the Position Sensor
Alarm Symbol ( ) appears on the display.
The default settings is “on1”, and this emits a
series of two short blips if your wrist is too far
away from the measuring position, and beeps
slowly when you wrist is in the correct position. When “on2” is selected
the alarm only beeps when your wrist is in the correct position.
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How to Modify the Settings
2. Press the MEM button to select “on1”, “on2”, or “oFF”.
Turning Right Wrist Measurement On/Off
1. Press the SET button until the right wrist
measurement symbol ( ) appears on the
display. Select “on” to measure your blood
pressure using your right wrist.
2. Press the MEM button to select “on” or “oFF”.
17
Troubleshooting
Symptom
No display appears
when the START/STOP
button is pressed.
Cannot measure or
readings are too high.
The blood pressure is
different each time. The
reading is extremely
low (or high).
Cause Correction
Batteries are flat.
Batteries were inserted
incorrectly.
Are you holding the
wrist cuff at heart level?
Is the cuff wrapped
snugly around the wrist?
Are your arms and
shoulders tense?
Have you been talking
or moving your hands
during measurement?
Blood pressure readings constantly vary with time
of measurement and psychological condition. Take
deep breaths to relax before taking a
measurement.
Replace with new
batteries.
Insert the batteries with
the correct [+] [-]
polarity.
Measure while in the
correct posture.
Wrap the cuff correctly.
Relax and try taking the
measurement again.
Keep still and do not talk
during measurement.
18
Troubleshooting
Error Symbol Cause Correction
After several seconds
After several seconds
Cuff over inflated.
Movement during
measurement
Wrist is not in the
correct position.
The wrist cuff is not
fastened securely.
An E mark is
displayed.
The battery power is
low.
Press the START/STOP
button once to turn off
the power. Sit still restart
measurement and keep
still and do not talk
during measurement.
Carefully read and
repeat the steps in “How
to Take a Reading”.
Make sure that the
setting is set correctly for
the wrist being used to
take the measurement.
(See page 16.)
Carefully read and
repeat the steps listed
under “How to Apply the
Wrist Cuff”.
Contact the store where
you purchased this unit,
or the nearest OMRON
dealer.
Replace the batteries
with two new “AAA”
batteries.
19
Care and Maintenance
To protect your monitor from damage, please avoid the following:
•Subjecting your monitor to extreme temperatures,
humidity, or direct sunlight.
•Washing the cuff or exposing the cuff or monitor to
water.
•Disassembling the monitor.
•Subjecting the monitor to strong shocks or vibrations. Do not drop the
monitor.
•Cleaning the monitor with volatile liquids. The MONITOR SHOULD BE
CLEANED WITH A SOFT, DRY CLOTH.
20
Specifications
Name : OMRON Automatic Wrist Blood Pressure Monitor
Model : IW2
Display : LCD Digital Display
Measurement : Oscillometric method
Measurement Range : Pressure: 0 to 299 mmHg
Memory : 90 measurements with date and time
Pulse : 40 to 180 beats/min
Accuracy : Pressure; Within ±3 mmHg
Inflation : Automatic inflation by pumping
Deflation : Automatic rapid deflation
Pressure Detection : Electrostatic capacity semiconductor pressure sensor
Power Supply : Two AAA batteries (LR03)
Battery Life : Approximately 300 measurements when using
Operating Temperature
and Humidity : 10°C to 40°C, 30 to 85% RH
Storage Temperature
and Humidity : -20°C to 60°C, 10 to 95% RH
Weight of Main Unit : Approximately 110 g (not including batteries)
External Dimensions : 70 mm (w) x 54 mm (h) x 37 mm (d)
Measurable
Circumference of Wrist : Approximately 135 mm to 215 mm
Accessories : Storage case, two AAA alkaline batteries, Instruction
Pulse rate; Within ±5% of reading
alkaline batteries at room temperature of 23˚C,
three times a day and inflating to 170 mmHg
(not including the wrist cuff)
manual
Note:
* These specifications, to improve performance, are subject to change
without notice.
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