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Troubleshooting
Fault / message
Instrument cannot
be switched on.
Volume too low /
sample invalid.
Instrument outside
temperature range
↑ ↑ ↑
(Measuring range
exceeded)
Volume too small
Volume too great
Sample interruption Irregular outward
Fault number
22
Cause
Battery drained.
Test subject is blowing
intermittently or not
hard enough.
Instrument too hot or
too cold.
Measuring range
exceeded. Alcohol
residues that are still in
the mouth may cause
incorrect measuring
values.
Breath sample volume
too small.
Measuring range
exceeded.
breath, abrupt end or
intake
Instrument fault
Remedy
Replace battery.
Blow more strongly
and without
interruptions into the
mouthpiece.
Allow the instrument to
cool down or become
warmer.
There must be an
interval of at least
15 minutes after alcohol
has been taken into the
mouth (see page 18).
To repeat, press the
button.
Repeat breath sample.
Repeat breath sample.
Repeat breath sample.
Switch the instrument
off and on again. If the
fault remains, contact
DrägerService.
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