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INSTRUCTION MANUAL
Digital blood pressure monitor
ECONOMY
TM
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Memory
Pulse rate
Diastolic
pressure
Systolic
pressure
Pressure bar
indicator
and WHO
classication
indicator
Battery
indicator
Exhaust mark Pressure mark
Introduction
Thank you for purchasing a state-of-the-art Sendo blood pressure monitor. Sendo
will give you years of accurate measurements, if it is used properly. We are always
ready to provide help on our telephone lines for your country.
5 years guarantee.
Please read carefully the instructions before using this blood pressure monitor.
Index mark
Display
Air socket
Air connector plug
Exhaust
valve
Rubber
bulb
Air hose
Battery cover
Battery
compartment
1.5V batteries
(R6P or LR6 or AA)
Proper Fit Range
Arm cu
START button
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Installing / Changing the Batteries
Remove the battery cover.
Remove the used battery and
insert new battery into the
battery compartment as
shown, taking care that the
polarities (+) and (-) are
correct.
Replace the battery cover.
Use only R6P, LR6 or AA batteries.
Connecting the Air Hose
Insert the air connector plug
into the air socket rmly.
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Air socket
Air connector plug
Air hose
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Measurement
Sit comfortably in a chair with your
feet at on the oor. Place your left
arm on a table at a slight angle.
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Place the cu on the arm
(preferably the left arm). The cu
must be at the level with the heart.
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Wrap the cu around the upper
arm, about 2 - 3 cm above the
elbow, as shown.
Place the cu directly against
the skin, as clothing may
cause a faint pulse and result
in a measurement error.
Constriction of the upper
arm, caused by rolling up a
shirtsleeve, may prevent
accurate readings.
Conrm that the index
points within the proper t
range.
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Arm Cu
Index Mark and Proper t range
Air Hose
2-3 cm
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Pres the START button.
The average blood pressures and last data
number are displayed briey. When is
ashing and the mark , is displayed the
device is ready for measurement.
Note: If the mark , is displayed , the cu has
air trapped in it. Press the exhaust valve button
until the mark is displayed.
Pressurize the cu by squeezing the rubber
bulb .
Stop squeezing the bulb when the mark
disappears.
The deation starts automatically. The heart
mark starts blinking, indicating that the
measurement is in progress.
Note: When the measurement is made with
insucient pressure, the mark will be
displayed.
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START button
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When the measurement is complete, the
buzzer sounds and the mark is
displayed. The systolic and diastolic pressure
readings and pulse rate are displayed and
stored.
Press the exhaust valve button to completely
release air from the cu.
Press the START button to turn the power o.
Automatic power-o function: If the device
is left on after a measurement, it will turn o
automatically after about one minute.
If a subsequent measurementuired, turn o the power and turn it on
again. When is displayed, the device is ready for another measurement.
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START button
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How to Take Proper Measurements
For the most accurate blood pressure measurement:
Sit down in a comfortable position. Place the arm to be used for the measure-
ment on a table or other support so that the center of the cu will be at the
same height as your heart.
Relax before taking a measurement. If you are excited or depressed by
emotional stress, the measurement will reect this stress as a higher (or lower)
than normal blood pressure reading and the pulse reading will usually be faster
than normal.
An individual's blood pressure varies constantly, depending on what you are
doing and what you have eaten. What you drink can have a very strong and
rapid eect on your blood pressure.
This device bases its measurements on the heartbeat. If you have a very weak or
irregular heartbeat, the device may have diculty determining your blood
pressure.
Should the device detect a condition that is abnormal, it will stop the
measurement and display an error symbol. Refer to page 4 for the description of
the symbols.
This device is intended for use by adults only. Consult with your physician before
using this device on a child. A child should not use this device unattended.
Place the center of the cu at the same height as your heart.
Remain still and keep quiet during measurement.
Do not measure right after physical exercise or a bath. Rest before taking the
measurement.
Try to measure your blood pressure at the same time every day.
Insert the batteries as shown in the battery compartment. If not, the device will
not work.
When (LOW BATTERY mark) blinks on the display, replace all batteries
with new ones. Do not mix old and new batteries. It may shorten the battery life,
or cause the device to malfunction.
(LOW BATTERY mark) does not appear when the batteries are drained.
Battery life varies with the ambient temperature and may be shorter at low
temperatures.
Use the specied batteries only. The batteries provided with the device are for
testing monitor performance and may have a limited life.
Remove the batteries if the device is not to be used for a long time. The batteries
may leak and cause a malfunction.
The stored data are cleared when the batteries are removed.
CAUTION
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About Memory
The device automatically stores up to thirty blood pressure and pulse measurements in memory. Data stored in memory are assigned a data number in the order
of the newest to the oldest. The oldest data displays as "n01". The M symbol in the
upper left corner of the display indicates that you are viewing previous data stored
in memory.
Recalling Data
When nothing is displayed, press and hold the
START button to display the data number.
The data number of the most recent
measurement and the data are displayed.
The data are automatically displayed in turn.
The display will shut o automatically after all
data is displayed.
Note: If you press the START button while
recalling data, the device
starts measurement.
Clearing Data
Remove the batteries to clear all data.
Re-install them again.
If there is no data stored in memory, you will see two 0s displayed vertically
followed by a blinking "A00".
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Selecting The Correct Cu
Using the correct cu size is important for an accurate reading.
If the cu is not the proper size, the reading may yield an incorrect blood pressure
value.
The arm size is printed on each cu.
The index and proper t range, on the cu, tell you if you are attaching the
correct cu. (Refer to "Attaching The Arm Cu" below.)
If the index points outside of the range, contact your local dealer to purchase
a replacement cu
What is an irregular heartbeat
Sendo Economy provides a blood pressure and pulse rate measurement even
when an irregular heartbeat occurs. An irregular heartbeat is dened as a
heartbeat that varies by 25% from the average of all heartbeats during the blood
pressure measurement. It is important that you be relaxed, remain still and do not
talk during measurements.
Note: We recommend contacting your physician if you see this
indicator frequently.
*Arm size: The circumference at the biceps.
Arm Size*
32 cm to 45 cm
22 cm to 32 cm
Recommended Cu Size
Large cu
Medium cu
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Symbols Function / Meaning Recommended Action
Standby and Turn the device on.
Battery installation guide
Direct current
Serial number
Type BF: Device, cu and tubing are designed to
provide special protection against electrical shocks.
The indicator that appears while measurement is in
progress. It blinks when the pulse is detected.
Irregular Heartbeat indicator. (I.H.B.)
The indicator that appears when an irregular heartbeat
or any excessive body movement is detected during the
measurement.
Previous measurements stored in MEMORY.
The battery power indicator during measurement.
The battery is low when it blinks.
Unstable blood pressure due to movement during the
measurement.
The systolic and diastolic values are within 10 mmHg of
each other.
The pressure value did not increase
during ination.
The cu is not fastened correctly.
The pulse is not detected correctly.
Systolic blood pressure in mmHg
Diastolic blood pressure in mmHg
Pulse per minute
EC directive medical device label
WEEE label
Flashes when there is air remaining in the cu at
power up. Flashes at the completion of the
measurement until exhaust is complete.
Flashes when pressure is insucient for the
measurement.
Measurement is in progress.
Remain as still as possible.
Replace all batteries with
new ones.
Try the measurement again.
Remain very still during the
measurement.
Fasten the cu correctly, and
try the measurement again.
Press the exhaust valve button
to exhaust air from the cu.
Pump air into the cu with
the rubber bulb.
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WHO Classication Indicator
Each six segments of the bar indicator correspond to the WHO blood pressure
classication described on the next page.
Example:
The indicator displays a segment, based on the current data,
corresponding to the WHO classication.
Moderate
hypertension
Mild
hypertension
High
normal
WHO Classication Indicator
Severe hypertension
Moderate hypertension
Mild hypertnsion
High normal
Normal
Optimal
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What Is Blood Pressure?
Blood pressure is the force exerted by blood against the walls of the arteries.
Systolic pressure occurs when the heart contracts. Diastolic pressure occurs when
the heart expands. Blood pressure is measured in millimeters of mercury (mmHg).
One's natural blood pressure is represented by the fundamental pressure, which is
measured rst thing in the morning while one is still at rest and before eating.
What Is Hypertension And How Is It Controlled?
Hypertension, an abnormally high arterial blood pressure, if left unattended, can
cause many health problems including stroke and heart attack. Hypertension can
be controlled by altering lifestyle, avoiding stress, and with medication under a
doctor’s supervision.
To prevent hypertension or keep it under control:
Do not smoke
Exercise regularly
Reduce salt and fat intake
Have regular physical checkups
Maintain proper weight
Blood Pressure Variations
An individual’s blood pressure varies greatly on a daily and seasonal basis. It may
vary by 30 to 50 mmHg due to various conditions during the day. In hypertensive
individuals, variations are even more pronounced. Normally, the blood pressure
rises while at work or play and falls to its lowest levels during sleep. So, do not be
overly concerned by the results of one measurement.
Take measurements at the same time every day using the procedure described
in this manual to get to know your normal blood pressure.
Consult your doctor to interpret your blood pressure data.
Typical uctuation within a day
(35 years old male)
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Maintenance
Do not open the device. It uses delicate electrical components and an intricate air
unit that could be damaged. If you cannot x the problem using the troubleshooting instructions, request service at our hot line.
The device was designed and manufactured for a long service life.
However it is generally recommended to have the device inspected every 2 years,
to ensure proper functioning and accuracy.
Troubleshooting
Problem
Nothing appears
on the display,
even when the
power is turned on.
The device
does not measure.
Readings are
too high or too low.
Other
Recommended Action
Replace all batteries with new ones.
Reinstall the batteries with negative
and positive terminals matching those
indicated on the battery compartment.
Fasten the cu correctly.
Make sure you remain very still and
quiet during the measurement.
Sit comfortably and still. Raise your
hand so that the cu is at the same
level as your heart.
Refer to
“Why Measure Blood Pressure At Home"
Remove the batteries. Place them back
properly and try the measurement again.
Possible Reason
Batteries are drained.
Battery terminals are not in
the correct position.
The cu is not fastened properly.
You moved your arm or body
during the measurement.
The cu position is not correct.
The value is dierent from that
measured at a clinic or doctor’s
oce.
DO NOT TRY TO DISSASEMBLE AND FIX THE UNIT BY YOURSELF!
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Note: Specications are subject to change without prior notice.
Technical Data
Measurement method
Measurement range
Measurement accuracy
Power supply
Classication
Clinical test
EMC
Memory
Operating condition
Storage condition
Dimensions
Weight
Oscillometric measurement
Pressure: 20 - 280 mmHg
Pulse: 40 - 180 beats/minute
Pressure: ±3 mmHg or 2%, whichever is greater
Pulse: ±5%
1 x 1.5V batteries (R6P, LR6 or AA)
Type BF
According to ANSI / AAMI SP-10 1987
IEC 60601-1-2: 2001
Last 30 measurements
+10°C to +40°C / 30%RH to 85 %RH
-10°C to +60°C / 30%RH to 95 %RH
Approx. 81 mm (width) x
54 mm (height) x 105 (depth) mm
Approx. 260 g, excluding the batteries
EMC Table information is listed on our website: www.unicoms.com/sendo-emc
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Guarantee
As long as the instructions are followed your Sendo device should last for long
years. In the event your Sendo monitor fails to operate due to manufacturing or
materials related defects, we will repair it free of charge for the period of the
guarantee. The apparatus have 5 years guarantee for its electrical components. The
parts made from rubber and textile, as well as mechanical components have 2
years guarantee. The guarantee does not cover damages caused by improper use.
Any claim for damages covered by the guarantee must be accompanied by the
purchase receipt (cash register receipt)
The guarantee does not cover damages caused by improper use; damage caused
by dust; liquids or stress on the mechanism.
Precision components are used in the construction of this device.
Extremes in temperature, humidity, direct sunlight, shock or dust should
be avoided.
Clean the device with a soft, dry cloth. Never use thinner, alcohol,
benzine, or wet cloth.
Avoid tightly folding the cu or storing the hose tightly twisted for long
periods, as such treatment may shorten the life of the components.
The device and cu are not water resistant. Prevent rain, sweat and water
from soiling the device and cu.
Measurements may be distorted if the device is used close to televisions,
microwave ovens, cellular telephones, X-ray or other devices with strong
electrical elds.
Used, equipment, parts and batteries are not treated as ordinary
household waste and must be disposed of according to the applicable
local regulations.
PRECAUTIONS
0366
A&D Medical, Tokyo, JAPAN
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