Dräger Alcotest 3820, Instructions For Use Manual

Page: 9 / 56

Maintenance
9
en
6 Maintenance
Have the instrument calibrated as signs of drift increase the
measurement uncertainty over time. Calibration and maintenance
should only be carried out by authorised persons, e.g. DrägerService.
Cleaning
Do not immerse in fluids and avoid contact of fluids with the connections.
Do not use any cleaning agents containing alcohol, solvents or
substances containing limonene. Wipe down the instrument with a
disposable cloth.
↑ ↑ ↑
(Measuring range
exceeded)
Measuring range
exceeded. Alcohol
residues that are still in
the mouth may cause
incorrect measuring
values. There must be an
interval of at least
15
minutes after alcohol
has been taken into the
mouth (see page
6).
To repeat, press the
button.
Volume too small Breath sample volume
too small. Repeat breath sample.
Volume too great Measuring range
exceeded. Repeat breath sample.
Sample interruption Irregular outward
breath, abrupt end or
intake
Repeat breath sample.
Fault number Instrument fault Switch the instrument
off and on again. If the
fault remains, contact
DrägerService or your
dealer.
Fault / message Cause Remedy