Putting The Blood-Pressure Monitor Into Operation; Inserting The Batteries; Using A Mains Adapter (Optional Accessory); Tube Connection - Microlife as easy as 123 Instruction Manual

IB BP 3BXO-A 3804_4 16/9/04

4. Putting the blood-pressure monitor into operation

4.1. Inserting the batteries

After you have unpacked your device, first insert the batteries. The battery compartment is located on the
back side of the device (see illustration).
a) Remove cover as illustrated
b) Insert the batteries (4 x size AA 1,5 V), thereby
observing the indicated polarity.
c) If the battery warning appears in the display, the
batteries are empty and must be replaced by new
ones.
Attention!
• After the battery warning appears, the device is
blocked until the batteries have been replaced.
• Please use «AA» Long-Life or Alkaline 1.5V Batteries.
The use of 1.2V Accumulators is not recommended.
• If the blood-pressure monitor is left unused for long
periods, please remove the batteries from the device.

4.2. Using a mains adapter (optional accessory)

It is possible to operate this blood-pressure instrument through a mains adaptor (output 6 V DC / 600 mA
with plug). Make certain that you use a mains adaptor which fulfils the legal requirements (CE sign ).
a) Plug the plug into the socket at the left side of
the instrument.
b) Plug the mains adaptor into a 230V power socket.
c) Test that power is available by pressing the
O/I MEMORY button.
Note:
• No power is taken from the batteries while the mains adaptor is connected to the instrument.
• If the mains voltage is interrupted during the measurement (e.g. by removal of the mains adaptor from
the mains socket), the instrument must be reset by removing the plug from its socket.
• Please consult a specialist dealer if you have questions relating to the mains adaptor.
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4.3. Tube connection

Insert the cuff tube into the opening provided on the
left side of the instrument, as shown in the diagram.

5. Carrying out a measurement

5.1. Before the measurement:

• Avoid eating, smoking as well as all forms of exertion directly before the measurement. All these
factors influence the measurement result. Try and find time to relax by sitting in an armchair in a quite
atmosphere for about 5 minutes before the measurement.
• Remove any garment that fits closely to your upper arm.
• Measure always on the same arm (normally left).
• Attempt to carry out the measurements regularly at the same time of day, since the blood-pressure
changes during the course of the day.

5.2. Common sources of error

Note: Comparable blood-pressure measurements always require the same conditions!
These are normally always quiet conditions.
• All efforts by the patient to support the arm can increase the blood-pressure. Make sure you are in a
comfortable, relaxed position and do not activate any of the muscles in the measurement arm during
the measurement. Use a cushion for support if necessary.
• If the arm artery lies considerably lower (higher) than the heart, an erroneously higher (lower) blood-
pressure will be measured! (Each 15 cm difference in height results in a measurement error of 10mmHg!)
• Cuffs that are too narrow or too short result in false measurement values. Selecting the correct cuff is
of extraordinary importance. The cuff size is dependent upon the circumference of the arm (measured in
the centre). The permissible range is printed on the cuff. If this is not suitable for your use, please
contact your dealer.
Note: Only use clinically approved Original-Cuffs!
• A loose cuff or a sideways protruding air-pocket causes false measurement values.

5.3. Fitting the cuff

a) Push the cuff over the left upper arm so that the tube points
in the direction of the lower arm.
b) Lay the cuff on the arm as illustrated. Make certain that the
lower edge of the cuff lies approximately 2 to 3 cm above
the elbow and that the rubber tube leaves the cuff on the
inner side of the arm.
Important! The mark (ca. 3 cm long bar) must lie over the
artery which runs down the inner side of the arm.
2–3 cm
tube
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