Omron SEM-2, SEM-1 Instruction Manual

INSTRUCTION MANUAL

Automatic Blood Pressure Monitor

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Model

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SEM-2

S

E

M

-

2

Before Using the Monitor

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Important Safety Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Operating Instructions

Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Unit Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

How to Use Your Blood Pressure Monitor . . . . . . . . . . . . . . . . . .8

How to Install/Replace the Batteries . . . . . . . . . . . . . . . . . . . . . .9

Setting the Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

How to Sit Correctly When Taking a Measurement . . . . . . . . . .13

How to Apply the Arm Cuff . . . . . . . . . . . . . . . . . . . . . . . . . . .15

How to Take a Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . .17

How to Use the Memory Function . . . . . . . . . . . . . . . . . . . . . .21

Care and Maintenance

Maintenance and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Using the Optional AC Adapter . . . . . . . . . . . . . . . . . . . . . . . . .26

Error Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

CONTENTS

2

Thank you for purchasing OMRON SEM-2 Automatic Blood Pressure
Monitor.

INTRODUCTION

3

Your new digital blood pressure monitor uses the oscillometric method of
blood pressure measurement. This means the monitor detects your
blood’s movement through your brachial artery and converts the
movements into a digital reading. An oscillometric monitor does not need
a stethoscope so the monitor is simple to use.

The SEM-2 Automatic Blood Pressure Monitor is intended for home use.

SAVE THESE INSTRUCTIONS

Before Using the Monitor

To assure the correct use of the product basic safety measures should
always be followed including the precautions listed below:

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 inflate the arm cuff over 299 mmHg.

Do not use the unit for any purpose other than measuring blood pres­sure.

Do not use a cellular phone near the unit. This may result in incorrect
operation of the unit.

Keep batteries out of the reach of young children and infants. If a bat­tery swallowed, consult a doctor immediately.

If the battery fluid should get in your eyes, immediately rinse with
plenty of clean water. Consult a doctor immediately.

If the battery fluid should get on your skin or clothing, immediately
rinse with plenty of clean water.

IMPORTANT SAFETY NOTES

4

IMPORTANT SAFETY NOTES

5

When using batteries, the battery liquid may leak and damage the
main unit. Please observe the following points.

• Do not insert the batteries with their polarities incorrectly aligned.

• Replace old batteries with new ones immediately.

• When you are not going to use the unit for a long period of time
(approximately three months or more), take out the batteries.

Do not use new and used batteries together. Do not use batteries of a
different type together.

Do not forcibly bend the arm cuff or bend the air tube excessively.

When removing the air tube, pull on the air plug at the connection
with the main unit not the tube itself.

Do not expose the unit to strong shocks or vibrations. Do not drop the
unit.

Do not inflate the arm cuff when it is not wrapped around your arm.

Operating Instructions

6

KNOW YOUR UNIT

Air Jack

Main Unit:

Battery Compartment

START/STOP
Button

MEMORY Button

Settings Button

Display

AC Adapter Jack

Arm Cuff:

Air Tube

Air Plug

The arm cuff should last for 18 months, when used four times a day.
To ensure accurate measurement results, you should change to a
new arm cuff after this period.

If air starts to leak from the arm cuff, please purchase a new one.

NOTE: An air plug is not included with the

replacement arm cuff. Do not dispose
of the current air plug when you
purchase a new arm cuff.

HEM-2

7

KNOW YOUR UNIT

Diastolic Blood Pressure

Systolic Blood Pressure

Memory Symbol

Pulse Display

Date/Time Display

Battery Low Symbol

Average Value Symbol

Heartbeat Symbol

Deflation Symbol

UNIT DISPLAY

Storage Case

Components:

Four “AA” Alkaline (LR6) Batteries

HOW TO USE YOUR BLOOD PRESSURE MONITOR

8

Preparation

Set the date and time

Measurement

Sit correctly

Apply the arm cuff

Start measurement

View Results

Check the
measurement result

View previous
measurement results

page 9

page 11

page 13

page 15

page 17

page 19

page 21

Measurement results automatically stored in memory
(Up to 60 measurements)

Insert the batteries

9

1. Turn the main unit over.

2. Slide the battery cover in the
direction of the arrow while pressing
the ribbed part of the cover.

3. Install or replace four “AA” size
batteries so that the + (positive) and

- (negative) polarities match the
polarities indicated on the battery
compartment.

4. Replace the battery cover.

Slide the battery cover as indicated, until it clicks into place.

NOTE: The monitor memorizes previous measurement results even when

the batteries are replaced.

HOW TO INSTALL/REPLACE THE BATTERIES

10

Battery Life & Replacement

If the battery low symbol ( ) appears on the display, replace all four
batteries at the same time.

Even if the battery low symbol ( ) starts to blink, you will still be able
to use the unit for a short while. However, you should replace the
batteries with new ones when the symbol remains lit.

• Turn the monitor off before replacing the batteries.

• Remove the batteries if the monitor will not be used for more than
3 months.

• If the batteries are removed for more than 30 seconds or so, the
Date/Time setting will need to be reset. See “Setting the Date and
Time” for details.

• Dispose of batteries according to applicable local regulations.

Four new “AA” manganese batteries will last for approximately 300
measurements, when used to take two measurements a day.

Since the supplied batteries are for monitoring use only, they may have a
shorter life and not last for 300 measurements.

HOW TO INSTALL/REPLACE THE BATTERIES

Your blood pressure monitor automatically stores up to 60
measurements, and also calculates average values based on the three
most recent measurements taken within 10 minutes of the last reading. (If
there are only two readings in memory for that period, the average will
be based on two readings. If there is only one reading in memory for that
period, that reading will be displayed as the average value.) To make use
of the memory and average reading functions:

• Set the monitor to the correct date and time before taking a
measurement for the first time, or if the date and time setting has been
reset.

1. When the monitor is switched on for the first

time after inserting batteries, the year digits
(2005) will flash on the display.

2. Press the MEMORY button to advance the

digits one at a time.

NOTE: The range for the year setting is 2005

to 2030. If the year reaches 2030, it
will return to 2005.

3. Press the settings button to confirm the

setting when the desired number appears on
the display.

The year is set and the month digits flash on
the display.

SETTING THE DATE AND TIME

11

4. Repeat steps 2 and 3 to set the month.

The month is set and the day digits flash on
the display.

5. Repeat steps 2 and 3 to set the day (date).

The date is set and the hour digits flash on
the display.

6. Repeat steps 2 and 3 to set the hour.

The hour is set and the minutes digits flash
on the display.

7. Repeat steps 2 and 3 to set the minutes.

The minutes settings is set.

The monitor automatically shuts itself off
after the minute setting has been set.
To adjust the date and time again, press the
settings button while the monitor is off.
(When you have finished adjusting the date
and time, press the START/STOP button to turn the monitor off.)

SETTING THE DATE AND TIME

12

You can take a measurement on either your left or right arm.

NOTE: Measurements should be taken in a quiet place and you should

be in a relaxed, seated position. Make sure that the room is not
too hot or cold.

Do not take a measurement after bathing, alcohol or exercise.

HOW TO SIT CORRECTLY WHEN TAKING A MEASUREMENT

13

Correct
Posture

Remove tight fitting clothing from
your upper arm, and any thick
clothing such as a sweater.

Do not place the cuff over thick
clothes and do not roll up your sleeve
if it is too tight.

Place your arm on a table so
that the cuff will be at the same
level as your heart.

Sit upright
with your
back straight.

The gap between the
chair and the top of the
table should be between
10" to 12".

NOTES:

• Correct posture during measurement is necessary to get accurate
results.

• You should also try to measure your blood pressure at the same time
each day. (Within 1 hour of waking is recommended.)

HOW TO SIT CORRECTLY WHEN TAKING A MEASUREMENT

14

Incorrect Posture

•

Arched back (leaning forwards)

• Sitting cross-legged

• Sitting on a sofa or at a low table

so that you tend to lean forwards

These situations could lead to higher blood pressure reading due to strain or the
arm cuff being lower than the heart.

If the arm cuff is at a lower position than your heart use cushions etc., to adjust
the height of your arm.

Be sure to wrap the arm cuff correctly so that you get accurate results.

Measurements can be taken in light clothing. However, please remove
thick clothes, such as sweaters, before taking a reading.

1. Insert the air plug into the air jack on the
left side of the main unit.

2. Put your left arm through the cuff loop.

The air tube should run down the inside of
your forearm and be in line with your
middle finger.

NOTE: If the cuff is not assembled, pass the

end of the cuff furthest from the
tubing through the metal D-ring to
form a loop. The smooth cloth should
be on the inside of the cuff loop.

HOW TO APPLY THE ARM CUFF

15

3. Position the arm correctly.

1) The air tube should run down the
inside of your forearm and be in
line with your middle finger.

2) The bottom of the cuff should be
approximately 1 to 2 cm above
your elbow.

3) Apply the cuff to your upper arm
so that the colored marker is
centered on the middle of your
inner arm and points down the
inside of the arm.

TAKING MEASUREMENTS ON THE RIGHT ARM

Apply the cuff so that the air tube is at the side of your elbow.

• Be careful not to rest your arm on the

air tube, or otherwise restrict the flow
of air to the cuff.

• The cuff should be 1 to 2 cm above

the elbow.

4. When the cuff is positioned correctly, close the fabric fastener
FIRMLY.

HOW TO APPLY THE ARM CUFF

16

1 to 2 cm

17

1. Press the START/STOP button to turn on the monitor.

Sit in a chair with your feet flat on the floor and place your arm on a
table so that the cuff will be at the same level as your heart. Keep still
and do not talk during measurement.

NOTE: To cancel a measurement, press the START/STOP button to

turn off the unit and to release the air in the arm cuff.

HOW TO TAKE A MEASUREMENT

Correct
Posture

Do not talk during
the measurement.

Arm cuff at
heart level.

Sit upright
with your
back straight.

2. When the measurement is complete, the arm cuff completely deflates
and your blood pressure and pulse rate are displayed.

NOTE: The monitor automatically stores blood pressure and pulse

rate into its memory.

HOW TO TAKE A MEASUREMENT

18

Common Causes of Inaccurate Results

Arm cuff is too loose. Movement or talking

during measurement.

Leaning forwards.

NOTE: If the arm cuff is at a lower position

than your heart use cushions etc., to
adjust the height of your arm.

19

3. Check the measurement results.

The monitor automatically stores blood
pressure and pulse rate into its memory.
Refer to “How to Use the Memory
Function” on page 21.

NOTES:

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

• If an error symbol “E” or “EE” appears, measurement was not
completed successfully. Refer to “Error Indicator” on page 27.

• 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.

4. Remove the arm cuff.

5. Press the START/STOP button to turn the monitor off.

NOTE: If you forget to turn the monitor off, it will automatically shut

itself off after five minutes.

HOW TO TAKE A MEASUREMENT

Systolic Blood
Pressure

Pulse Display

Diastolic Blood
Pressure

Guide to Blood Pressure Levels

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

Use these figures as a guide.
* Consult your doctor if necessary.

INSTRUCTIONS FOR SPECIAL CONDITIONS

Instructions for special conditions If your systolic pressure is known to
be more than 220 mmHg, press and hold the START/STOP button until
the arm cuff inflates 30 to 40 mmHg higher than your suspected systolic
pressure.

1. Press the START/STOP button to turn
the unit on.

Measurement starts.

2. When the cuff starts to inflate, press the START/STOP button and
keep it pressed until the pressure is 30 to 40 mmHg higher than your
suspected systolic pressure.

NOTE: You cannot inflate the cuff above 299 mmHg. (An error will

be displayed if you try to inflate the cuff above 300mmHg.)

3. Release the START/STOP button when the cuff has been inflated to
the desired pressure. The cuff starts to deflate and measurement starts.

4. The rest of the procedure is the same as for normal measurement.
Refer to steps 2 to 5 on pages 18 to 19.

NOTE: Do not apply more pressure than necessary.

HOW TO TAKE A MEASUREMENT

20

This monitor has a memory capable of storing 60 sets of readings. Every
time you complete the measurement, the monitor automatically stores the
blood pressure and pulse rate. If there are three readings within 10
minutes of the last reading, the average of the three readings is displayed.

NOTE: When 60 sets of readings are stored in memory, the oldest set

will be deleted to store a new set.

1. Press the MEMORY button.

If there are three readings stored in
memory that were taken within 10 minutes
of the last reading, an average value for
those reading is displayed. (If there are
only two readings in memory for that
period, the average will be based on two readings. If there is only one
reading in memory for that period, that reading will be displayed as
the average.)

NOTE: If there are no measurements

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

HOW TO USE THE MEMORY FUNCTION

21

2. Press the MEMORY button again, while
the average reading screen is displayed.

The result from the most recent
measurement is displayed.

The date and time of each measurement is
displayed alternately with the measurement
reading.

3. Press the MEMORY button repeatedly to
cycle through the previous measurement
results.

Keep the button pressed down to cycle
rapidly through the previous results.

4. Press the START/STOP button to turn off the power.

NOTE: If you forget to turn the monitor off, it will automatically shut

itself off after five minutes.

HOW TO USE THE MEMORY FUNCTION

22

Alternating display

TO DELETE ALL THE READING

You cannot delete individual stored readings, all the readings will be
deleted.

1. To delete stored measurement results,
while the memory values are
displayed, first press the MEMORY

button. Then while holding it down,
press the START/STOP button

simultaneously for about 2-3 seconds.
All results will then be deleted.

NOTE: Be careful not to press the

START/STOP button first.
If the START/STOP button is
pressed first, the monitor will be
turned off.

2. Press the START/STOP button to turn the monitor off.

If you forget to turn the monitor off, it will automatically shut itself off
after five minutes.

NOTE:

If the date and time are reset to a time before the most recent
measurement, the average value will be based on any measurements
taken after the date and time were reset. However, you can still view the
readings stored in memory.

HOW TO USE THE MEMORY FUNCTION

23

1

2

Care and Maintenance

MAINTENANCE

To keep your digital blood pressure monitor in the best condition and
protect the unit from damage follow the directions listed below:

• Do not subject your monitor and cuff to extreme temperatures,
humidity, moisture or direct sunlight.

• Do not fold the cuff or tubing tightly.

• Do not inflate the monitor over 299 mmHg.

• Do not disassemble the monitor.

• Do not subject the monitor to strong shocks or vibrations (for example,
dropping the monitor on the floor).

• Do not use volatile liquids to clean the monitor. The monitor should be
cleaned with a soft, dry, cloth.

• Do not wash the arm cuff or immerse it in water.

MAINTENANCE AND STORAGE

24

STORAGE

Keep the unit in its storage case when not in use.

1. Unplug the air tube from the air jack.

2. Gently fold the air tube into the arm
cuff.

NOTE: Do not bend the air tube
excessively.

3. Place the arm cuff and the main unit in
the storage case.

Do not store the monitor 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.

• Locations exposed to chemicals or corrosive vapours.

MAINTENANCE AND STORAGE

25

Insert batteries into the battery compartment even when using the AC
adapter.

NOTES:

• Never unplug the power cord with wet hands.

• Use only exclusive AC adaptor specified by Omron dealers. Use of
unsupported adapters may damage the unit.

• When storing the optional AC adapter in the storage case with the
main unit, be careful not to damage the main unit or cuff.

1. Insert the AC adapter plug into the
AC adapter jack on the rear side of
the main unit.

2. Plug the AC adapter into an
electrical outlet.

To disconnect the AC adapter, unplug the AC adapter from the electrical
outlet first and then immediately remove the AC adapter plug from the
main unit.

USING THE OPTIONAL AC ADAPTER

26

ERROR INDICATOR

27

Release your finger from the
START/STOP button before the
pressure reaches 299 mmHg,
when inflating the cuff manually.
Refer to page 20.

The arm cuff was
inflated above 299
mmHg when inflating
the cuff manually.

Carefully read and repeat the
steps listed under “How to Apply
the Arm Cuff” on page 15.

Cuff is under inflated.

Replace the arm cuff with a new
one.

Air is leaking from
the arm cuff.

Remove any clothing interfering
with the arm cuff.

Clothing is interfering
with the arm cuff.

SYMBOL CAUSE CORRECTION

Movement during
measurement.

Repeat measurement. Remain
still and do not talk during
measurement. Refer to page 17.

Air plug
disconnected.

Insert the air plug securely.
Refer to page 15.

Arm cuff not applied
correctly.

Apply the arm cuff correctly.
Refer to page 15.

ERROR INDICATOR

28

Device error.

Contact your OMRON service
representative.

Batteries are worn.

Replace all four “AA” batteries
with new ones.
Refer to page 9.

SYMBOL CAUSE CORRECTION

Blinks or appears
continuously

Cannot measure or
readings are too low
or too high.

Has the arm cuff
been inflated
sufficiently?

Inflate the cuff so that it
is 30 to 40 mmHg above
your previous
measurement result.
Refer to page 21.

Replace the arm cuff
with a new one.

Air is leaking from
the arm cuff.

The reading is
extremely low (or
high).

Arm cuff not applied
correctly.

Apply the arm cuff
correctly.
Refer to page 15.

Movement or talking
during measurement.

Remain still and do not
talk during
measurement.
Refer to page 17.

Clothing is
interfering with the
arm cuff.

Remove any clothing
interfering with the arm
cuff. Refer to page 13.

Arm cuff pressure
does not rise.

Is the air plug
securely inserted into
the main unit?

Make sure that the air
plug is connected
securely.
Refer to page 15.

The arm cuff is
loose.

Apply the cuff correctly
so that it is firmly
wrapped around the
arm. Refer to page 15.

Arm cuff deflates too
soon.

REMEDY

29

TROUBLESHOOTING TIPS

PROBLEM CAUSES

Nothing happens
when you press the
buttons.

TROUBLESHOOTING TIPS

30

Replace all four “AA”
batteries with new ones.
Refer to page 9.

The batteries are
empty.

The unit loses power
during measurement
or the date and time
are reset.

The batteries are
worn or have been
removed for a long
time.

Replace all four “AA”
batteries with new ones.
Refer to page 9.

The batteries have
been inserted with
their polarities
incorrectly aligned.

Check the battery
installation for proper
placement of the battery
polarities.

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 OMRON service representative.

Other problems.

REMEDYPROBLEM CAUSES

31

SPECIFICATIONS

Name: OMRON Automatic Blood Pressure Monitor
Model: SEM-2
Display: LCD Digital Display
Measurement Range: Pressure: 0 to 299 mmHg, Pulse: 40-180/min.
Accuracy/Calibration: Pressure: ±3mmHg or 2% of reading

Pulse: ±5% of reading

Inflation: Automatic by electric pump
Deflation: Automatic pressure release valve
Rapid Air Release: Automatic exhaust valve
Pressure Detection: Capacitive pressure sensor
Measurement Method: Oscillometric method
Pulse Wave Detection: Capacitance type pressure sensor
Power Source: 4 “AA” batteries (or AC Adapter)
Battery Life: Approx. 300 uses when used twice a day

with new “AA”manganese batteries

Operating Temperature 10ºC to 40ºC /30 to 85% RH
/Humidity:
Storage Temperature -20ºC to 60ºC /10 to 95% RH
/Humidity:
Main Unit Weight: Approximately 340 g not including batteries
Main Unit Dimensions: Approx. 121 mm (w) × 86 mm (h) × 141 mm (l)
Cuff Size: Approximately 146 mm (w) × 446 mm (l)

Cuff tube 600 mm (l)

Cuff Circumference: Fits arm circumferences 220mm to 320mm
Contents: Main Unit, Arm Cuff, Storage Case,

Four “AA” Alkaline (LR6) Batteries,
Instruction Manual

NOTE: These specifications are subject to change without notice.