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Thank you for purchasing the OMRON HEM-6131 Wrist Blood 

Pressure Monitor.

The OMRON HEM-6131 is a compact and easy to use blood 

pressure monitor, operating on the oscillometric principle. It 

measures your blood pressure and pulse rate simply and quickly. 

For comfortable controlled inflation without the need of pressure 

pre-setting or re-inflation the device uses its advanced “IntelliSense” 

technology.

Intended Use

This product is designed to measure the blood pressure and pulse 

rate of people within the range of the designated wrist cuff, following 

the instructions in this instruction manual.

It is mainly designed for general household use. Please read the 

Important Safety Information in this instruction manual before using 

the unit.

Please read this instruction manual thoroughly before using the 

unit.

Please keep for future reference.

For specific information about your own blood pressure, 

CONSULT YOUR DOCTOR.

Consult your doctor prior to using in pregnancy or if diagnosed with 
arrhythmia or arteriosclerosis.
Please read this section carefully before using the unit.

Warning:

Indicates a potentially hazardous situation which, if not avoided, 
could result in death or serious injury.

(General Usage)

• Always consult your doctor. Self-diagnosis of measurement results 

and self-treatment are dangerous.

• People with severe blood flow problems, or blood disorders, should 

consult a doctor before using the unit, as cuff inflation can cause 
internal bleeding.

(Battery Usage)

• If battery fluid should get in your eyes, immediately rinse with 

plenty of clean water. Consult a doctor immediately.

Caution: 

Indicates a potentially hazardous situation which, if not avoided, may 
result in minor or moderate injury to the user or patient or damage to 
the equipment or other property.

(General Usage)

• Do not leave the unit unattended with 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 mobile phone or other devices that emit 

electromagnetic fields, near the unit. This may result in incorrect 
operation of the unit.

• Do not disassemble the unit or wrist cuff.
• Do not operate the unit in a moving vehicle (car, airplane).

(Battery Usage)

• If battery fluid should get on your skin or clothing, immediately rinse 

with plenty of clean water.

• Use only two “AAA” alkaline (LR03) batteries with this unit.
• Do not insert the batteries with their polarities incorrectly aligned.
• Replace old batteries with new ones immediately. Replace both 

batteries at the same time.

• Remove the batteries if the unit will not be used for three months or 

more.

• Do not use new and used batteries together.

General Precautions

• Do not apply strong shocks and vibrations to or drop the unit.
• Do not take measurements after bathing, drinking alcohol or 

caffeine, smoking, exercising or eating.

• Do not inflate the wrist cuff when it is not wrapped around your 

wrist.

• Read and follow the “Important information regarding Electro 

Magnetic Compatibility (EMC)” in the Technical Data Section.

• Read and follow the “Correct Disposal of This Product” in the 

Technical Data Section when disposing of the device and any used 
accessories or optional parts.

Main unit:

Display:

2.1  Installing/Replacing the Batteries

• If the battery low symbol (

) appears on the display, turn off 

the unit then replace both batteries at the same time.

• The measurement values continue to be stored in memory 

even after the batteries are replaced.

Disposal of used batteries should be carried out in accordance 
with the national regulations for the disposal of batteries.

2.2  Setting the Date and Time

Notes:
• If the batteries have been removed, the date and time setting 

will need to be reset.

• If the date and time are not set, “-:--” appears during or after 

measurement.

For more information about re-setting the date and time, 
please refer to 3.4 Setting the Positioning Sensor.

3.1  Applying the Wrist Cuff

Do not apply over clothing.

3.2  How to Sit Correctly

• Relax your wrist and hand. Do not bend your wrist back, clench 

your fist, or bend your wrist forward.

3.3  Taking a Reading

Notes:
• To cancel a measurement, press the START/STOP button at 

any time during measurement.

• Remain still while taking a measurement.

After the Positioning symbol lights for more than 2 seconds, 
the wrist cuff will start to inflate automatically.

Cuff Wrapping Guide

The Cuff wrapping Guide is a unique feature that indicates if 
the cuff is not wrapped tightly enough around the wrist. 
If the 

 is displayed, it means the reading is 

NOT

 reliable 

due to the incorrect wrapping of the cuff. 
Please wrap the cuff again, taking care to wrap it correctly and 
take the measurement again. When the 

 

is displayed, 

the cuff is correctly wrapped tightly enough on the wrist and 
the reading is accurate and reliable.

The monitor automatically stores the measurement in its 
memory.
It will automatically turn off after two minutes.

This criteria is for home blood pressure measurement.

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 make your doctor aware of it.

Notes:
• Wait 2 - 3 minutes before taking another blood 

pressure measurement. Waiting between readings 
allows the arteries to return to the condition prior to 
taking the blood pressure measurement.

• The blood pressure can differ between the right arm 

and the left arm, and therefore also the measured 
blood pressure values can be different. OMRON 
recommends to always use the same arm for 
measurement. If the values between the two arms 
differ substantially, please check with your doctor 
which arm to use for your measurement.

 Warning:

Self-diagnosis of measured results and treatment are 
dangerous. Please follow the instructions of your doctor.

3.4  Setting the Positioning Sensor

For more information about setting the date and time, please 
refer to 2.2 Setting the Date and Time.

3.5  Using the Memory Function

The unit automatically stores up to 60 sets of measurement 
values (blood pressure and pulse rate).
It can also calculate an average reading based on the 
measurements from the last three readings taken within 10 
minutes. If there are only two readings in memory for that 
period, the average will be based on two readings. If there is 
one reading in memory for that period, the average will be 
based on one reading.
Notes:
• If the memory is full, the monitor will delete the oldest 

readings.

• When viewing the reading taken without setting the date and 

time, “-:--” is displayed instead of the date and time.

To View the Average Value

To View the Readings Stored in Memory

To Delete All the Values Stored in Memory

Note: You cannot partially delete the stored readings.

4.1  The Icons and Error Messages

Note: The irregular heartbeat symbol (

) and the movement error 

symbol (

) may also be displayed with error messages.

4.2  Troubleshooting

4.3  Maintenance

To protect your unit from damage, please observe the 
following:

• Do not subject the main unit and the cuff to 

extreme temperatures, humidity, moisture or 
direct sunlight.

• Do not disassemble the unit.
• Do not subject the unit to strong shocks or 

vibrations (for example, dropping the unit on the 
floor).

• Do not use volatile liquids to clean the main unit.
• Do not wash the cuff or immerse it in water.
• Do not use petrol, thinners or similar solvents to 

clean the cuff.

• Do not carry out repairs of any kind yourself. If a 

defect occurs, consult your OMRON retail outlet 
or distributor as mentioned on the packaging.

• The unit should be cleaned with a soft, dry cloth.
• Use a soft, moistened cloth and soap to clean 

the cuff.

• Keep the unit in its storage case when not in 

use.

• Fold the cuff into the storage case.

Do not store the unit in the following situations:

• If the unit is wet.
• Locations exposed to extreme temperatures, 

humidity, direct sunlight, dust or corrosive 
vapours.

• Locations exposed to vibrations, shocks or 

where it will be at an angle.

Calibration and Service

• The accuracy of this blood pressure monitor has 

been carefully tested and is designed for a long 
service life.

• It is generally recommended to have the unit 

inspected every two years to ensure correct 
functioning and accuracy. Please consult your 
authorised OMRON dealer or the local 
representative.

Note: Subject to technical modification without prior notice. 

• This device fulfils the provisions of EC directive 93/42/EEC 

(Medical Device Directive). 

• This blood pressure monitor is designed according to the European 

Standard EN1060, Non-invasive sphygmomanometers Part 1: 
General Requirements and Part 3: Supplementary requirements 
for electromechanical blood pressure measuring systems.

This OMRON product is manufactured under the strict quality 
system of OMRONHEALTHCARE Co., Ltd., Japan. The Core 
component for OMRON blood pressure monitors, which is the 
Pressure Sensor, is produced in Japan for assembly.

Made in Vietnam

A. Wrist cuff

D. Memory (

) button

B. Battery compartment

E. Date/Time setting (

) button

C. Display

F. START/STOP button

Wrist Blood 

Pressure Monitor

Model HEM-6131

Instruction Manual

1887246-8A

Introduction

Important Safety Information

1.  Overview

A

E

F

C

D

B

G. Memory symbol
H. Systolic blood pressure
I. Diastolic blood pressure
J. Battery low symbol
K. Heartbeat symbol 

(Flashes during measurement)

L. Average value symbol
M. Date/Time display

N. Blood pressure level indicator
O. Pulse display and Memory 

number

P. Deflation symbol
Q. Cuff wrapping guide
R. Positioning indicator
S. Positioning symbol
T. Movement error symbol
U. Irregular heartbeat symbol

1.

Remove the battery cover.

 

2.

Insert two 1.5V “AAA” 

alkaline (LR03) batteries 

as indicated in the battery 

compartment and then 

replace the battery cover.

Notes:

 

1.

Press and hold the 

 button until the year 

flashes on the display.

2.

Set the monitor to the correct date and time 

before taking a measurement for the first time.

3.

Press the START/STOP button to store the setting.

1.

Place the wrist cuff over 

your wrist.

Your palm should face upward.

 

2.

Wrap the wrist cuff around 

your wrist.

Wrap the wrist cuff securely 
around the wrist for taking 
accurate measurements.

 

Make sure that the wrist cuff 
does not cover the protruding 
part of the wrist bone (ulna) on 
the outside of the wrist.

Note: You can take a 

measurement on either 
your left or right wrist.

 

L

M

N

Q

R

U

T

S

K

O

P

H

I

G

J

2.  Preparation

Year

Month

Day

Hour

Minute

1) Press the 

 button to change.

• Hold down to advance the digit 

rapidly.

2) Press the 

 button to confirm.

• Next setting appears.

3.  Using the Unit

To take a measurement, you need 
to be relaxed and comfortably 
seated, under comfortable room 
temperature. No bathing, drinking 
alcohol or caffeine, smoking, 
exercising or eating 30 minutes 
before taking a measurement.

• Sit on a chair with your feet flat on the 

floor.

• Sit upright with your back straight.
• The cuff should be at the same level 

as your heart.

 

1.

Press the START/STOP button.

All the symbols appear on the display.
While your position is improper, the Positioning symbol and the 
Positioning indicator flash, when you are in proper position the 
Positioning symbol lights on the display.

The monitor is in 
proper position.

The monitor is higher 
than the heart.

The monitor is lower 
than the heart.

2.

Undo the wrist cuff and remove the unit.

3.

Press the START/STOP button to turn off the 

monitor.

Important:

• Recent research suggests that the 

following values can be used as a 
guide to high blood pressure for 
measurements taken at home.

Systolic Blood Pressure

Above 135 mmHg

Diastolic Blood Pressure

Above 85 mmHg

• Your blood pressure monitor includes an 

irregular heartbeat feature. Irregular 
heartbeats can influence the results of the 
measurement. The irregular heartbeat 
algorithm 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 you move during measurement,  the 

movement error symbol (

) will appear on 

the display. Keep still and repeat the 
measurement.

Cuff Wrapping Guide

START

INFLATE

DEFLATE

COMPLETE

Alternating

date/time display

1.

Press and hold the 

 

button to set the 
Positioning Sensor.

The Positioning Sensor 
"on" or "oFF" appears 
on the display.

Press the   to reset the
Positioning sensor.
The Positioning Sensor 
is set "on" as default.

Press the 

 button.

The year flashes to set 
the current date and 
time on the display.

 

2.

After setting the date and time, press the 

START/STOP button to store the Positioning 

Sensor setting.

Press the Memory button.

 

Note: If there are no measurements 

results stored in the memory, the 
screen to the right is displayed.

 

1.

Press the   button, while the average value is 

displayed.

The Memory number 
appears for a second 
before the pulse rate is 
displayed. The newest 
set is numbered “1”.

 

2.

Press the   button repeatedly to view the 

readings stored in memory.

When the memory symbol  (

) appears, first press 

the 

 button. Then while holding it down, press the 

START/STOP button simultaneously for about 2 - 3 
seconds.

Alternating
date/time 
display

First

Second

Error Display

Cause

Remedy

Irregular heartbeats 
are detected.

Remove the wrist cuff. Wait 
2 - 3 minutes and then take 
another measurement.
Repeat the steps in section 
3.1, 3.2 and 3.3. If this error 
continues to appear, contact 
your doctor.

Movement during 
measurement.

Carefully read and repeat the 
steps in section 3.3.

Blink

The batteries are 
low.

You should replace them with 
new ones ahead of time.
Refer to section 2.1.

Lit

The batteries are 
exhausted. 

You should replace them with 
new ones at once.
Refer to section 2.1.

Wrist cuff not 
applied correctly.

Apply the wrist cuff correctly.
Refer to section 3.1.

Movement during 
measurement.

Repeat Measurement while 
remaining still and refrain 
from talking during the 
measurement.
Refer to section 3.3.

Wrist cuff not 
applied correctly, or 
movement during 
measurement.

Apply the wrist cuff correctly 
and repeat measurement 
while remaining still and 
refrain from talking during the 
measurement.
Refer to section 3.1, 3.2 and 
3.3.

Arm position 
changed during 
measurement.

Remain still until the 
measurement is complete. 
Refer to section 3.3

Device error.

Contact your local OMRON 
representative.

Problem

Cause

Remedy

The reading is 
extremely low 
(or high).

The wrist cuff is not 
at heart level.

Measure while in the 
correct posture.
Refer to section 3.2.

The cuff is not 
wrapped snugly 
around the wrist.

Wrap the cuff correctly.
Refer to section 3.1.

The arms and 
shoulders are 
tense.

Relax and try taking the 
measurement again.
Refer to section 3.3.

Movement or 
talking during 
measurement.

Remain still and do not 
talk during Measurement.
Refer to section 3.3.

Wrist cuff pressure 
does not rise.

Air is leaking from 
the wrist cuff.

Consult your local 
OMRON representative.

Wrist cuff deflates 
too soon.

The wrist cuff is 
loose.

Apply the cuff correctly so 
that it is firmly wrapped 
around the wrist. Refer to 
section 3.1.

The blood pressure is different 
each time. The reading is 
extremely low (or high).

Blood pressure readings 
constantly vary with time 
of day and how relaxed 
you are. Take several 
deep breaths and try to 
remain relaxed before 
taking a measurement.

The unit loses 
power during 
measurement.

The batteries are 
exhausted.

Replace the batteries with 
new ones.
Refer to section 2.1.

Nothing happens 
when you press 
the buttons.

The batteries have 
been inserted 
incorrectly.

Insert the batteries with 
the correct (+/-) polarity.
Refer to section 2.1.

Other problems.

• Press the START/STOP button and repeat 

measurement.

• If the problem continues, try replacing the 

batteries with new ones.

If this still does not solve the problem, contact 
your local OMRON representative.

4.  Troubleshooting and Maintenance

Product Description

Wrist Blood Pressure Monitor

Model

HEM-6131

Display

LCD Digital Display

Measurement Method

Oscillometric method

Measurement Range

Pressure: 0 to 299 mmHg 
Pulse: 40 to 180 beats/min.

Accuracy

Pressure: ±3 mmHg 
Pulse: ±5% of display reading

Inflation

Automatic inflation by pump

Deflation

Automatic rapid deflation

Memory

60 Measurements

Power Source

2 x 1.5V (LR03, AAA alkaline batteries)

Battery Life

Approx. 300 measurements with new 
alkaline batteries at a room temperature of 
23°C

Applied Part

= Type B

Protection Against 
Electric Shock

Internally powered ME equipment

Operating temperature/ 
Humidity

+10 to +40°C / Maximum: 30 to 85% RH

Storage temperature/ 
Humidity

-20 to +60°C / Maximum: 10 to 95% RH / 
700 to 1060hPa

Console Weight

Approx. 101g without batteries

Outer Dimensions

Approx. 78 (w) mm x 60 (h) mm x 21 (d) 
mm (without the wrist cuff)

Measurable Wrist 
Circumference

Approx. 13.5 to 21.5 cm

Cuff Material

Nylon and polyester

Package Content

Main unit, storage case, battery set, 
instruction manual

5.  Technical Data

Important information regarding Electro Magnetic 
Compatibility (EMC)

With the increased number of electronic devices such as PC’s and 
mobile (cellular) telephones, medical devices in use may be 
susceptible to electromagnetic interference from other devices. 
Electromagnetic interference may result in incorrect operation of 
the medical device and create a potentially unsafe situation.
Medical devices should also not interfere with other devices.
In order to regulate the requirements for EMC (Electro Magnetic 
Compatibility) with the aim to prevent unsafe product situations, the 
EN60601-1-2:2007 standard has been implemented. This standard 
defines the levels of immunity to electromagnetic interferences as 
well as maximum levels of electromagnetic emissions for medical 
devices.
This medical device manufactured by OMRON HEALTHCARE 
conforms to this EN60601-1-2:2007 standard for both immunity and 
emissions.
Nevertheless, special precautions need to be observed:
• Do not use mobile (cellular) telephones and other devices, which 

generate strong electrical or electromagnetic fields, near the 
medical device. This may result in incorrect operation of the unit 
and create a potentially unsafe situation. Recommendation is to 
keep a minimum distance of 7 m. Verify correct operation of the 
device in case the distance is shorter.

Further documentation in accordance with EN60601-1-2:2007 is 
available at OMRON HEALTHCARE EUROPE at the address 
mentioned in this instruction manual.
Documentation is also available at www.omron-healthcare.com.

Correct Disposal of This Product 
(Waste Electrical & Electronic Equipment)

This marking shown on the product or its 
literature, indicates that it should not be 
disposed of, with other household wastes at the 
end of its working life. 
To prevent possible harm to the environment or human health from 
uncontrolled waste disposal, please separate this product from 
other types of wastes and recycle it responsibly to promote the 
sustainable reuse of material resources.

Household users should contact either the retailer where they 
purchased this product, or their local government office, for details 
of where and how they can return this item for environmentally safe 
recycling.
Business users should contact their supplier and check the terms 
and conditions of the purchase contract. This product should not be 
mixed with other commercial wastes for disposal. 

OMRON HEALTHCARE Co., Ltd.

53, Kunotsubo, Terado-cho, Muko, Kyoto, 
617-0002 JAPAN

OMRON HEALTHCARE EUROPE B.V.

Scorpius 33, 2132 LR Hoofddorp 
THE NETHERLANDS

Asia Pacific HQ

OMRON HEALTHCARE SINGAPORE PTE LTD.

438A Alexandra Road, #05-05/08
Alexandra Technopark, Singapore 119967 
www.omron-healthcare.com.sg

Production Facility

OMRON HEALTHCARE MANUFACTURING 
VIETNAM CO., LTD.

Binh Duong Province, Vietnam

13A0092

HEM-6131-AP_A_M_EN.fm  1 ページ  2013年5月14日 火曜日 午後6時9分

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