Homedics WGNBPA-940A User Manual

AUTOMATIC ARM

Blood Pressure
Monitor

• 5-Year
Limited Warranty

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WGNBPA-940

Ver. A

TABLE OF CONTENTS

INTRODUCTORY INFORMATION:
Important Product Notices and Safety

Instructions ..........................................................3

About Blood Pressure ......................................... 5

Blood Pressure Standard ....................................5

How This Blood Pressure Monitor Works .........7

USAGE INFORMATION:

Name/Function of Each Part ............................... 8

Display Explanations ........................................... 9

Installing Batteries ............................................11

Date & Time Set Procedure...............................12

Using the Cuff ....................................................13

Measurement Procedure ...................................17

Risk Category Index ..........................................19

Irregular Heartbeat Detector ...........................20

Recalling Values from Memory.........................21

Clearing Values from Memory .......................... 21

Important Notes Regarding Your

Blood Pressure Measurement .......................... 22

Care, Maintenance & Cleaning .........................23

Potential for Electromagnetic Interference .....25

Electromagnetic Compatibility (EMC) ..............26

Troubleshooting .................................................28

Specifications ....................................................29

5 Year Limited Warranty ....................................30

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IMPORTANT PRODUCT NOTICES
AND SAFETY INSTRUCTIONS

When using your blood pressure monitor, basic precautions
should always be followed. Please read and follow all
instructions and warnings before using this product.
Save these instructions for future reference.

• Please note that this is a home healthcare product only and

it is not intended to serve as a substitute for the advice of a
physician or medical professional.

• This device uses the oscillometric method to measure

systolic and diastolic blood pressure, as well as heart rate.

• Do not use this device for diagnosis or treatment of any

health problem or disease. Measurement results are for
reference only. Consult a healthcare professional for
interpretation of pressure measurements. Contact your
physician if you have or suspect any medical problem. Do
not change your medications without the advice of your
physician or healthcare professional.

• Proper cuff size is critical for accurate measurements. Follow

the instructions in this manual and printed on the arm cuff to
ensure the appropriate size of cuff is being used.

• This product is not suitable for people with arrhythmias. This

device may have difficulty determining the proper blood
pressure for pregnant women and for users with irregular
heartbeat, diabetes, poor circulation of blood, kidney
problems or for users who have suffered from a stroke.

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• Excessive use may result in blood flow interference, which
is likely to cause uncomfortable sensations, such as partial
subcutaneous hemorrhage, or temporary numbness to
your arm. In general these symptoms should not last long.
However, if you do not recover in time, please seek advice
from a medical professional.

• The pulse display is not suitable for checking the frequency
of heart pacemakers.

• Electromagnetic interference: The device contains
sensitive electronic components. Avoid strong electrical or
electromagnetic fields in the direct vicinity of the device (e.g.
mobile telephones, microwave ovens). These may lead to
temporary impairment of measurement accuracy.

• Consider the electromagnetic compatibility of the device
(ex. power disturbance, radio frequency interference etc.)
Please use this device indoors only.

• Use blood pressure monitor only for its intended use.

• Do not wrap the cuff around body parts other than your arm.

• Do not use this device on infants, children, or those who
cannot express their own intention.

• Not for use by or on persons under the age of 18.

• Use only 1.5V “AAA” alkaline batteries for power supply.

Blood pressure measurements determined with this device
are equivalent to those obtained by a trained observer using
the cuff/stethoscope auscultatory method, within the accuracy
limits prescribed by the American National Standard, Manual,
electronic, or automated sphygmomanometers.

ABOUT BLOOD PRESSURE

What is Blood Pressure?

Blood pressure is the pressure exerted on the artery walls while blood
flows through the arteries. The pressure measured when the heart
contracts and sends blood out of the heart is systolic (highest) blood
pressure. The pressure measured when the heart dilates with blood
flowing back into the heart is called diastolic (lowest) blood pressure.

Why Measure Your Blood Pressure?

Among today’s various health problems, those associated with high
blood pressure are very common. High blood pressure dangerously
correlates with cardiovascular diseases. Therefore, blood pressure
monitoring is important for identifying those at risk.

Why Do My Readings Vary?

Blood pressure is a body parameter that is subject to normal variations
throughout the day. A single reading that is different from yours or
your doctor’s readings are not necessarily inaccurate. The average of
several readings, taken under similar conditions, using the same arm is
preferred for accurate blood pressure readings.

Why Are My Readings Different Than Those Taken at My
Doctor’s Office?

Many experience a phenomenon called “White Coat Hypertension”
when measured by a doctor. White Coat Hypertension refers to blood
pressure that rises above its usual level when measured in a clinical
setting, such as a doctor’s office.

BLOOD PRESSURE STANDARD

The table on page 6 contains defined levels for hypertension that are
publicly available from the National Heart Lung and Blood Institute at the
U.S. National Institutes of Health (NIH)
(http://www.nhlbi.nih.gov/health/dci/Diseases/Hbp/HBP_WhatIs.html).

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Users can compare their own blood pressure readings against these
defined levels to determine if they may be potentially at increased risk.

This table is applicable to most adults aged 18 and older.

Category
Normal Less than 120 and Less than 80
Prehypertension 120-139 or 80-89
High Blood Pressure
Stage 1 140-159 or 90-99
Stage 2 160 or higher or 100 or higher

Blood pressure tends to go up and down, even in people who normally
don’t have high readings. If your numbers stay above the “normal” range
most of the time, you may be at increased risk and should consult your
physician.
Although one can easily find where their own blood pressure readings
fall on this table, this monitor comes equipped with a Risk Category
Index that automatically compares each reading to the defined levels
and provides a helpful cue if your reading falls into one of the stages
that could potentially indicate increased risk. See page 19 for more
information on this feature.

Please note that cues provided by this monitor are only intended to
assist you in using this table. The table and cues are only provided for
convenience to help you understand your non-invasive blood pressure
reading as it relates to the NIH information. They are not a substitute
for a medical examination by your physician. It is important for you to
consult with your physician regularly. Your physician will tell you your
normal blood pressure range as well as the point at which you may
actually be considered to be at risk.

Systolic (mmHg) Diastolic (mmHg)

HOW THIS BLOOD PRESSURE MONITOR WORKS

This monitor uses innovative technology to detect your
blood pressure. This technology enables the monitor to
automatically inflate and deflate at the appropriate level for
each individual. With one touch of a button, the cuff will
automatically inflate to block the blood flow through your
artery. Once the measurement is complete, the cuff will
automatically deflate.

Please note that any muscle movement during inflation will
cause measurement error. When measurement is complete,
the monitor will display your systolic pressure, diastolic
pressure, and pulse readings.

NAME/FUNCTION OF EACH PART

Air Tube

and Connector

LCD Display

The monitor automatically finds where your measurement
results fall on the NIH’s National Heart Lung and Blood
Institute’s table and provides a cue if your reading falls into
one of the stages that could potentially indicate increased risk.
Please refer to page 19 for more information on this feature.

The appearance of the icon indicates that a pulse
irregularity consistent with an irregular heartbeat was detected
during measurement. Refer to page 20 for more information
on the Irregular Heartbeat Detector.

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Battery Cover
(Located on

Arm Cuff

MEMORY RECALL
Button

Note:
The START/STOP and M buttons are also used to set the date and time.

Other Accessories:

4 “AAA” size, 1.5V alkaline batteries (included)

START/STOP
Button

bottom of unit)

DISPLAY EXPLANATIONS

Date/Time
Indicator

Systolic
Pressure

Diastolic
Pressure

Display Symbols:

Weak Battery Symbol: Appears when batteries should be

replaced.

Pulse Symbol: Shows the heart rate per minute.

Irregular Heartbeat Detector: See page 20 for

more information.

Risk Category Index: See page 19 for more information.

If and any of the following letters and numbers appear in the
area that systolic pressure should be displayed, an error has occurred
with your reading. See Troubleshooting section of this manual for
more information.

Measurement Error: Wrap the cuff correctly and keep arm
steady during measurement. Measure again.

Air Circuit Abnormality: Check cuff connection. Measure again.

Pressure Exceeding 300 mmHg: Turn the unit off to clear,

then measure again.

Heart Rate

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Error Determining Measurement Data: Measure again.

System Error: Measure again.

INSTALLING BATTERIES

1. Press down on latch and lift the battery cover to open the
battery compartment.

2. Install or replace 4 “AAA ” sized batteries in the battery

compartment according to the indications inside the
compartment.

3. Close the battery cover by pushing in the top end of the
battery door

Replace the batteries if:

• The weak battery symbol appears on the display.

• Nothing appears on the display when the power is switched on.

Note:

• Date and time will need to be reset if batteries are removed or
replaced.

• Replace all batteries at one time (as simultaneous set). Use only

1.5V “AAA” alkaline batteries.

• Remove batteries when unit is not in use for extended periods of
time.

• When the batteries are removed, the measurement values stored
in memory are retained. However, the date and time must be
re-set.

• Clean contacts on battery and in battery compartment with a soft
dry cloth each time you install batteries.

• Batteries are hazardous waste. Do not dispose of them

together with the household garbage.

.

Battery
Cover

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DATE & TIME SET PROCEDURE

1. To adjust the date and time, press and hold the START/
STOP button for 3 seconds.

M

2. The display will show a blinking number showing the
MONTH. Change the MONTH by pressing the M button.
Each press will increase the number by one in a cycling
manner. Press the START/STOP button again to confirm
the entry, and the screen will show a blinking number
representing the DAY.

3. Change the DAY, YEAR, HOUR, & MINUTE as described in
Step 2. above, using the M button to change the numbers
and the START/STOP button to confirm the entries.

START

STOP

M

START

STOP

repeat process to set DAY, YEAR, HOUR

START

STOP

Press & hold the

START/STOP button

blinking MONTH

increasing MONTH

confirm the entry

and MINUTE

USING THE ARM CUFF

Position cuff edge

0.8

–

1.2 inches (2

–

3cm)

above elbow.

Fit cuff securely.

Allow room for 2 fingers

to fit between the cuff

and your arm.

Very Important: Proper cuff size is critical to accurate
measurement.

This monitor comes with a standard size arm cuff
that fits arms 9”-13” (23 cm-33 cm).

This cuff is suitable for your use if the colored arrow
falls within the solid color line as shown below. If
the arrow falls outside of the solid color line, you
will need to contact HoMedics Consumer Relations
for a One Size Fits Most UltraSoft™arm cuff (9”-17”,
23cm - 43cm) at 1-800-466-3342.

Colored Arrow

Position cuff
edge 0.8˝

–

1.2˝

(2

–

3 cm) above elbow.

WITHIN BLUE BAND

Center tube over

Fit cuff securely. Allow room for

middle of arm.

two fingers to fit between the cuff
and your arm.

Center tube over
middle of arm

ARROW MUST FALL

WITHIN BLUE BAND

ARROW MUST FALL

1. If the cuff is not assembled, pass the end of the

cuff furthest away from the tubing through the metal
D-ring in order to form a loop. The smooth side without
the felt material should be on the inside of the cuff loop.

ARROW MUST FALL

End of cuff

WITHIN BLUE BAND

D-ring

2. Plug the cuff tube into the left side of the unit.

Insert plug here

(0.8”~1.2”)

2~3 cm

3. Open the arm cuff so that your arm may be placed

through it.

Solid Colored Line

4. Remove tight fitting clothing from your upper left arm so

that the cuff can be wrapped around your exposed arm.

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5. Position cuff edge 0.8-1.2
inches (2-3 cm) above elbow.

6. Center tube over middle of arm.

7. Pull the end of the cuff so that it tightens
evenly around your arm. Press the hook
and loop material together to secure.
Allow room for 2 fingers to fit between the
cuff and your arm.

8. Lay your arm on a table (palm upward) so the
cuff is at the same height as your heart. Make
sure the tube is not kinked.

Note:

• This device should not be used when your arm is
wounded or injured.

• If it is not possible to fit the cuff on your left arm, it can also
be placed on your right arm. However, all measurements
should be made using the same arm.

• To use on the right arm, you must position the artery
symbol “ ” over the main artery. Locate the main artery
by pressing with two fingers approximately 1” (2 cm)
above the bend of your elbow on the inside of your right
arm. Identify where the pulse can be felt the strongest.
This is your main artery.

Main Artery

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MEASUREMENT PROCEDURE

START

Notes:

• Blood pressure changes with every heartbeat and is in constant
fluctuation throughout the day.

• Blood pressure measurement can be affected by the position of
the user, his or her physiologic condition and other factors.

Before Measurement:

To help ensure an accurate reading, follow these instructions before
taking a measurement:

• Wait 1 hour after exercising, bathing, eating, drinking beverages
with alcohol or caffeine, or smoking to measure blood pressure.

• Sit quietly and rest for 15 minutes.

• Stress raises blood pressure. Avoid taking measurements during
stressful times.

• Take your reading in a comfortable environment as
measurements can be affected by hot or cold temperatures.
Take your blood pressure at normal body temperature.

During Measurement:

• Do not talk or move your arm or hand muscles.

• Do not cross your legs. Sit with feet flat on the floor.

• Do not touch cuff or monitor during measurement.

1. With the cuff wrapped around your arm, press the START/STOP
button. Do not inflate the cuff unless it is wrapped around your
arm. All digits will light up to check the display functions. The
checking procedure will be completed after about 3 seconds.

STOP

START

M

STOP

2. After all symbols disappear, the display will show “00”. The

monitor is “Ready to Measure” and will automatically inflate
the cuff to start measurement.

3. When the measurement is completed, the

cuff will deflate entirely. Systolic pressure,
diastolic pressure and pulse will be shown
simultaneously on the LCD screen. The

measurement is then automatically stored
into memory.

Note:

• This monitor automatically turns off approximately 1 minute after

last operation. You may also press the START/STOP button to
turn the unit off.

• To interrupt the measurement, you may press the START/

STOP (recommended) or M buttons.
The cuff will deflate immediately after a button is pressed.

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