6. Error messages/malfunctions
If an error occurs during a measurement, the measurement is
discontinued and a corresponding error code is displayed.
(example: error no. 3)
Error No. Possible cause(s)
ERR 1 The systolic pressure was determined but afterwards the cuff pressure fell below 20 mmHg.
The tube may have become unplugged after the systolic blood pressure was measured.
Further possible cause: No pulse could be detected
ERR 2 Unnatural pressure impulses impair the measurement result. Possible cause: The arm was
moved during the measurement (artefact).
ERR 3 Inflation of the cuff takes too long. The cuff is not correctly seated or the hose connection
is not sealed.
ERR 5 The measured readings indicated an unacceptable difference between systolic and dias-
tolic pressures. Take another reading following directions carefully. Contact you doctor if
you continue to get unusual readings.
HI The pressure in the cuff is too high (over 300 mmHg) OR the pulse is too high (over 200
beats per minute). Relax for 5 minutes and repeat the measurement.*
LO The pulse is too low (less than 40 beats per minute). Repeat the measurement.*
* Please consult your doctor, if this or any other problem occurs repeatedly.
Other possible malfunctions and their elimination
If problems occur when using the device, the following points should be checked and if necessary, the
corresponding measures are to be taken:
9
Malfunction Remedy
The display remains empty when the instrument is
switched on although the batteries are in place.
1. Check whether the batteries are installed with the
correct polarity and correct if necessary.
2. If the display is unusual, remove the batteries and
then exchange them for new.
The pressure does not rise although the pump is
running.
• Check the connection of the cuff tube and connect
properly if necessary.
The instrument frequently fails to measure the
blood pressure values, or the values measured are
too low (too high).
1. Fit the cuff correctly on the arm.
2. Before starting the measurement make sure that
the cuff is not fitted too tightly and that there is
no rolled-up sleeve exerting pressure on the arm
above the measuring position. Take off articles of
clothing if necessary.
3. Measure the blood pressure again in complete
peace and quiet.
Every measurement produces a different value
although the instrument functions normally and the
values displayed are normal.
• Please read the following information and the
points listed under «Common sources of error».
Repeat the measurement.
The blood pressure values measured differ from
those measured by the doctor.
• Record the daily development of the values and
consult your doctor about them.
