Upper Arm Blood Pressure Monitor
Monitor de Presión Arterial de Brazo
Operating Instructions
Instrucciones de
funcionamiento
Model No. EW3111
Modelo No. EW3111
For questions or assistance with your blood pressure
monitor, call us at 1-800-338-0552.
Panasonic Consumer Electronics Company
A Unit of Matsushita Electric Corporation
of America
One Panasonic Way 3D-1
Secaucus, NJ 07094
Before operating this device, please read these instructions completely and save this
manual for future use.
No.1 EN,SP（アメリカ）
Antes de usar este dispositivo, lea completamente estas instrucciones y guarde este
manual para utilizarlo como referencia en el futuro.
© 2002 Matsushita Electric Works, Ltd. All Rights Reserved.
Printed in China
• The following situations may cause substantial variations in blood
pressure readings and should therefore be avoided at least 30 minutes
prior to taking your blood pressure.
Important Instructions Before Use
1. Do not confuse self-monitoring with self-diagnosis. Blood pressure
measurements should only be interpreted by a health professional who
is familiar with your medical history.
2. If you are taking medication, consult with your physician to determine
the most appropriate time to measure your blood pressure. NEVER
change a prescribed medication without first consulting with your
physician.
3. Blood pressure can vary based on many factors, including age, gender,
weight and physical condition. In general, a person’s blood pressure is
lower during sleep and higher when he or she is active. Blood pressure
can change easily in response to physiological changes. The setting in
which a person’s blood pressure is measured can also affect the results.
Having one’s blood pressure measured by a healthcare professional in a
hospital or clinic can cause nervousness and may result in a temporarily
elevated reading. Because blood pressure measurements taken in a
clinical setting can vary considerably from those taken at home, a
person’s blood pressure should be measured not only occasionally in
the doctor’s office, but also on a regular basis at home. Also, if you find
that your blood pressure is lower at home, this is not unusual. To
accurately compare with your physician’s reading, take your National
blood pressure meter to your doctor’s office and compare readings in
this setting.
Blood pressure will be higher than usual:
- when you are excited or tense
- when you are taking a bath
- during exercising or soon after exercising
- when it is cold
- within one hour after eating
- after drinking coffee, tea or other beverages containing caffeine
- after smoking tobacco
- when your bladder is full
Blood pressure will be lower than usual:
- after taking a bath
- after drinking alcohol
6. Measurements may be impaired if this unit is used near a television,
microwave oven, X-ray equipment or other devices with strong electrical
fields. To prevent such interference, use the unit at a sufficient distance
from such devices or turn the devices off.
7. This unit is designed for use by adults. Consult with your physician
before using this unit on a child. Do not use on infants or toddlers.
8. This unit is not suitable for continuous monitoring during medical
emergencies or operations.
9. Do not use the unit for any purpose other than measuring blood
pressure. Do not use the unit together with other devices.
4. People suffering from cardiac arrhythmia, vascular constriction, liver
disorders or diabetes, people with cardiac pacemakers or a weak pulse,
and women who are pregnant should consult their physician before
measuring their blood pressure themselves. Different values may be
obtained due to their condition.
10. Improper handling of batteries may result in battery rupture or in
corrosion from battery leakage. Please observe the following to ensure
proper use of batteries.
a. Be sure to turn off the power after use.
5. Try to take your blood pressure measurements at the same time and
under the same conditions every day.
b. Do not mix different types or sizes of batteries.
c. Change all batteries at the same time. Do not mix old and new
batteries.
d. Be sure to insert batteries with correct polarity, as instructed.
e. Remove batteries when they are worn out, and dispose of them
properly according to all applicable environmental regulations.
f. Do not disassemble batteries or throw them into a fire.
g. Do not short-circuit batteries.
• The ideal time to measure your blood pressure (to obtain your so-called
“base blood pressure”) is in the morning just after waking up, before
having breakfast and before any major activity or exercise. If this is not
possible, however, try to take measurements at a specified time prior to
breakfast, and before you have become active. You should relax for
about 5 minutes before taking the measurement.
h. Do not attempt to recharge the batteries included with the unit.
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IMPORTANT:
Precautions to Ensure Safe, Reliable Operation
• WHO does not define a low blood pressure area.
For reference, systolic pressure readings of less than 90 mmHg are
considered to indicate low blood pressure regardless of the diastolic
pressure.
1. Do not drop the unit. Protect it from sudden jars or shocks.
2. Do not insert foreign objects into any openings.
3. Do not attempt to disassemble the unit.
• Do not be alarmed by temporarily high or low readings because
fluctuations in a person’s blood pressure are not uncommon. If possible,
measure and record your blood pressure at the same time every day, and
consult your physician if you have questions or concerns.
• If abnormal variations in blood pressure are observed in measurement,
please consult your physician.
4. Do not crush the pressure cuff.
5. If the unit has been stored at temperatures below 0°C, leave it in a warm
place for about 15 minutes before using it. Otherwise, the cuff may not
inflate properly.
6. Do not store the unit in direct sunlight, high humidity or dust.
Easily Check Your Blood Pressure Readings Against
the World Health Organization (WHO) Guidelines
About the Precise Logic™ Measurement System
The blood flow (pulse wave) which influences blood pressure monitors
varies according to the conditions of the blood vessels and the structure of
the arm, making measurements by conventional methods difficult in some
cases. For more consistent, accurate results, this device employs a Precise
Logic™ measurement system that verifies both the height and width of the
pulse wave in order to reliably measure blood pressure.
Blood Pressure Categories
Severe Hypertension
e.g.: SBP 185
DBP 113
110
100
Moderate Hypertension e.g.: SBP 165
DBP 105
Panasonic Technology
Double Check Measurement System
Low Hypertension
e.g.: SBP 156
DBP 98
Checks both Pulse Height
and Pulse Width
90
85
Normal High e.g.:SBP 135
DBP 87
Normal e.g.:SBP 123
DBP 82
Old Technology
130 140
Systolic Blood Pressure (SBP)
160
180
Relies only on Pulse
Height
If your systolic pressure falls in one category but your diastolic pressure in
another, your level is classified in the higher of the two categories.
By using the Precise Logic™ measurement system, measurement reliability
and accuracy have been improved.
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Diagram of device
Display/Symbols
Cuff Holder
= Error
Tube
Cuff
Measurement in
progress
e.g.: Arm has been moved/
Cuff not positioned correctly
Replace batteries
Display
Alarm function signals high blood pressure
Blood pressure measurements for both systolic and diastolic readings are
determined and indicated via a three-color LED system as being within
normal or hypertensive ranges based on definitions and classification of
blood pressure levels by the World Health Organization (WHO). Moreover,
when blood pressure is in the high range, the reading displayed on screen
flashes on and off to alert the user.
Memory /
Recall/(Delete All)
Button 1
Blood Pressure
Indicator LED
According to WHO guidelines, values consistently in excess of 140 mmHg
(Sys.) and/or 90 mmHg (Dia.) are considered to constitute high blood pressure.
Memory /
Recall/(Delete All)
Button 2
ON/OFF / Start Button
High blood pressure is a health risk and must be treated without fail.
Blood Pressure
Indicator
Diastolic
(mmHg)
LED Colors
Orange
Connecting tube
to cuff
Attachment of cuff holder
Hypertensive
(Low / Moderate / Severe)
140
130
90
Slide from below in the direction of the
arrow, at the rear of the unit, until a
clicking sound is heard.
(NOTE: To remove,
slide downwards
from above.)
Normal High
Yellow
Green
90
85
85
80
Normal
Optimal
P/min.
120 130 140 (mmHg)
Systolic
Cuff Socket
Cuff Plug
(Insert cuff plug all the way in.)
Please consult your doctor without delay if the blood pressure indicator
repeatedly draws attention to elevated blood pressure values.
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Inserting/replacing batteries
Fitting the Blood Pressure Monitor
Positioning on the Upper Left Arm
1. Slide off the Battery Cover
+
1. Attaching the cuff to the upper
arm.
–
from the housing.
• Make sure the cuff is wrapped so
that it is in contact with the skin.
2. Insert four 1.5 V batteries
(R6/AA), ensuring correct
polarity.
1
–
+
Measurements may be taken
from either the left or right
arm. However, please take
measurements using the same
arm each time, because there
is said to be a blood pressure
difference of approx. 10 mmHg
between the left and right.
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2
3. Close the Battery Cover.
• Position so that
the tube extends in
line with the little finger
on the palm side.
Positioning on the
Upper Right Arm
Batteries must be replaced when ...
• The Replace batteries symbol appears on the display.
• You press the ON/OFF/Start Button and the display screen
goes blank after all displays have come on.
• You press the ON/OFF/Start Button and nothing is displayed on the
screen.
Wrap the cuff around
2. Fasten firmly, but not too tight.
the arm 2 to 3 cm
(25/32" to 1-3/16")
above the elbow.
• Optimally, there should be enough
room to insert one finger between
the cuff and arm.
• Make sure your sleeve does not
get in the cuff.
Note:
• New batteries contain enough power for about 200 measurements.
• If you do not use the unit for a long time, we recommend to remove
batteries from the main unit to avoid damage by liquid leakage.
• Firmly attach using the hook-and-
loop tape.
• Low temperature conditions can cause battery life to be shortened.
CAUTION:
Do not throw batteries into a fire. Doing so may result in an accident or
explosion.
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10
Instructions for correct measurement of blood pressure
Measuring your blood pressure
Measurement in a sitting position
1. Press the ON/OFF/Start Button to
turn on the unit.
1. Rest your elbows on a table or
other level surface.
2. Make adjustments so that the
height of the cuff and heart are at
the same level.
3. With the palm of your hand facing
up release any tension held in your
muscles.
The LCD display will show 888 and
then switch to 0. The cuff is auto-
matically inflated.
2. The blood pressure measurement is
indicated along with the pulse rate
(number of beats per minute). The
air in the cuff is released automatically
when the measurement is complete.
Measurement in lying position
1. Lie on your back with your body
straight.
3. Press the power switch to turn off the unit. If you forget to do so, the unit
switches off automatically approx. 5 minutes after a measurement.
• Do not lie on your side. Doing so
will exert an uneven amount of
force on one arm.
2. With the palm of the hand facing up,
extend your arm so that it is straight.
Error
If “E” (meaning error) appears in the display during
measurement, an error has occurred, e.g., you have moved
your hand during measurement. In this case, turn the unit off,
wait at least 5 minutes and measure again.
3. Relax and release any tension
held in your muscles.
IMPORTANT
Take measurements at the same time everyday using the same arm
and posture.
CAUTION:
• For persons with poor circulation resulting from diabetes, liver disease,
arteriosclerosis, high blood pressure or other conditions, there may be
significant differences in blood pressure values measured at the wrist
versus at the upper arm.
• Do not confuse self-monitoring with self-diagnosis.
• NEVER change a prescribed medication without first consulting with
your physician.
• Measured readings will vary according to the height of the cuff.
• Measurements taken in the morning should be done so upon waking and in
the absence of an urge to urinate. If this should prove difficult, take
measurements prior to breakfast while your body is still in an inactive state.
• Do not touch the tube or the meter while measurement is in progress.
Assume a natural posture, remaining calm and quiet when taking
measurements
• Rest for about 4 to 5 minutes before taking measurements.
• Release any tension present in your body and refrain from muscle
movement such as in the arm or fingers.
• Do not speak while measurement is in progress.
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Storing blood pressure readings
Calling up readings from memory
This monitor has enough memory capacity to store 21 readings for
two users.
Readings may be recalled once they have been
stored in the memory without having to
pressing the ON/OFF/Start Button.
M
1
/
R
M1 and M2 will flash on the display
after a measurement.
140
1. Push the Memory/Recall Button number of the user
130
whose data you want to call up, M1 for example.
1. Press the Memory/Recall
‹Averaged values for all recorded measurements
are displayed›
• M1 A is displayed at the bottom of the screen.
• When, for example, 21 readings have been
recorded, the average values of 21 readings will
be displayed. (When there are no readings or only
one reading in memory, M1 A is not displayed.)
• The blood pressure indicator LED will flash
(approx. 6 seconds)
90
140
130
Button number if you want
your readings to be recorded.
Example:
Person A is recorded under M1
85
P/min.
90
85
P/min.
M
1
/
R
M/R
2
Person B is recorded under M2
2. Memorization completed
Twenty-one readings can be
recorded for each person. If you
exceed the number of readings,
the existing readings will be
deleted in order of the oldest
as new readings are made.
• Measurements for which
accurate readings could not be
obtained (display of error
symbol E for blood pressure
values) cannot be stored in the
memory.
140
130
2. Press the Memory/Recall Button again.
M
1
/
R
‹Each time the Memory/Recall Button is pressed
readings are displayed in order of the most
recent entry›
• The blood pressure indicator LED will flash
(approx. 6 seconds).
90
85
P/min.
• Nothing will be displayed when there are no
readings in the memory.
Number of readings in memory
140
130
Please use a quick, light touch when pressing
the Memory/Recall Button. Take care to do
so, as continuous pressing of the button for
a duration of two seconds or more will clear
all readings from the memory.
NOTE: Blood pressure readings can be memorized when the error symbol E is
displayed only for the pulse rate.
90
85
P/min.
When you want to clear all memory
1. To call up the data that you wish to delete, simply push the
Memory/Recall Button number of that user.
2. Push the same user’s Memory/Recall Button again, for more than
about 3 seconds, until the memorized readings are deleted
3. Press the ON/OFF/Start Button to turn off the
unit.
• If you should forget to turn off the unit after
calling up the memory without pressing the
ON/OFF/Start Button, the unit will switch off
On/Off
Start
NOTE: Individual readings in the memory cannot be deleted selectively.
automatically after approx. 30 seconds.
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Storage
Troubleshooting
1. Loosely roll up the cuff and place it
in the cuff holder.
Display
Status before error
Check points
Pressurization to above
300 mmHg was
performed.
(Re-pressurization was
performed several times.) user is assuming the
correct posture.
2. Put the tube inside the cuff.
Check whether measure-
ments are being taken
correctly and whether the
• Do not wrap the tube around the
unit, etc. Excessive straining of the
tube can cause malfunctioning.
The “E” blinks
on the display
Make sure the cuff is
correctly attached to your
upper arm.
Pressure decreased
suddenly and “E”
appeared in the display.
(See pages 10 and 11)
The measurement
process was performed
until 20 mmHg was
reached and then “E”
Check whether the
pressure cuff is attached
to your upper arm
appeared in the display.
correctly.
Make sure the tube is fully
inserted into its socket.
(See pages 7 and 10)
Pressurization to above
180 mmHg was not
performed.
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Specifications
Symptom
Possible cause
The systolic
pressure value or
• The cuff was held too low, i.e. not at heart level.
(See page 11)
Method of measurement: Oscillometric System with Precise Logic™
diastolic pressure • The cuff was not attached properly. (See page 10)
Display:
Digital LCD
value is high.
• You moved your body or you spoke during
measurement. (See page 11)
Measuring range:
Blood pressure: 20 – 300 mmHg
Pulse rate:
30 – 160 pulse/min.
The systolic
pressure value or
diastolic pressure • You moved your body or you spoke during
value is low.
• The cuff was held too high, i.e. not at heart level.
(See page 11)
Measurement accuracy: Blood pressure: ±4 mmHg
Pulse rate: ±5 %
measurement. (See page 11)
Power source:
Four 1.5-volt (R6/AA) batteries
The measured
values differ
significantly.
• Your posture was not the same for all
measurements, or measurements were taken
without sufficient time in between. Always wait
approximately 5 minutes before taking another
reading, and above all, relax.
Operating environment: 10°C to 40°C (50°F to 104°F)
30% to 85% RH
Storage environment:
–20°C to 60°C (–4°F to 140°F)
10% to 95% RH
The measured
value differs from
that measured by
the doctor.
The measured
value is different
for each
• Blood pressure varies in response to minute
changes in your mental state, such as your reaction
to your doctor taking the measurement. One way to
check this is to bring the unit to your doctor’s office
and directly compare the readings taken by your
physician.
Upper arm circumference 20 to 40 cm (7-3/4" to 15-3/4")
measurement range:
Dimensions (H#W#D): 110#130#200 mm (4-11/32"#5-3/32"#7-7/8")
• Relax for at least 5 minutes and then take another
measurement.
Weight:
485 g (17.1 oz.) not including batteries
measurement.
Specifications are subject to change without notice.
If the device still appears to provide unusual or erroneous readings, consult
your physician. If the device does not appear to be functioning properly,
contact Panasonic at 1-800-338-0552.
Model EW3111 is intended to be used for the oscillometric PRECISE
LOGIC™ measurement of systolic and diastolic blood pressure and pulse
rate using a pressurized cuff.
Blood pressure measurements determined with this device are equivalent
to those obtaind by a trained observer using the cuff/stethoscope
auscultation method, within the limits prescribed by the American National
Standard, Electronic or automated sphygmomanometers.
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