Microlife BP 3AX1, Instruction Manual, Page: 19 / 52

The device frequently fails to measure the
blood pressure values, or the values measured
are too low (too high).
Every measurement produces a different
value although the instrument functions
normally and the values displayed are normal.
Blood pressure measured differ from those
values measured by the doctor.
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Further Information
The level of blood pressure is subject to fluctuations even with healthy people. Therefore it is important to
ensure that to compare
measurements always requires the same conditions (Quiet conditions)!
You must consult your specialist dealer or chemist if there are technical problems with the blood
pressure instrument.
Never attempt to repair the instrument yourself!
Any unauthorised opening of the instrument invalidates all guarantee claims!
9. Care and maintenance, recalibration
a) Do not expose the device to either extreme temperatures, humidity, dust or direct sunlight.
b) The cuff contains a sensitive air-tight compartment. Handle this carefully and avoid all types of
straining through twisting or buckling.
c) Clean the device with a soft, dry cloth. Do not use petrol, thinners or similar solvent. Spots on the
cuff can be removed carefully with a damp cloth and soapsuds. The cuff must not be washed!
d) Do not drop the instrument or treat it roughly in any way. Avoid strong vibrations.
e) Never open the device! Otherwise the manufacturer calibration becomes invalid!
Periodical recalibration
Sensitive measuring devices must from time to time be checked for accuracy. We therefore
recommend a periodical inspection of the static pressure display every 2 years.
Your specialist dealer would be pleased to provide more extensive information about this.
1. Check the positioning of the cuff.
2. Measure the blood pressure again in peace and
quiet under observance of the details made under
point 5.
• Please read the following information and the
points listed under «Common sources of error».
Repeat the measurement.
• Record the daily development of the values and
consult your doctor.
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