21
3 Operation
3.3.3
Adjustment
The Adjustment menu is used to set the sensors.
A
WARNING! Danger of death due to incorrect adjust-
ment
Incorrect adjustment can lead to incorrect measurement
results. This means that the user may not be warned about
dangerous gas concentrations in time.
●
Only specialist technicians may perform adjustments
●
Adjustments must be made in well ventilated rooms or
in the open air.
A detailed description of adjustment along with important infor-
mation is provided in Section 5.2 on page 41.
Adjustment CxHy
Used to adjust the infrared sensor for gas type C
x
H
y
(methane
CH
4
, propane C
3
H
8
, butane C
4
H
10
, nonane C
9
H
20
) in the % vol.
range/LEL range.
Adjustment CO2
Used to adjust the infrared sensor for carbon dioxide CO
2
in the
% vol. range.
Adjustment O2
Used to adjust the electrochemical sensor for oxygen O
2
in the
% vol. range.
Adjustment H2S
Used to adjust the electrochemical sensor for hydrogen sulphide
H
2
S in the ppm range.
Adjustment CO
Used to adjust the electrochemical sensor for carbon monox-
ide CO in the ppm range.
