6 Maintenance
│
63
Exception:
A test gas must be used for oxygen. The test gas must not
contain oxygen.
−
Test gases must be used to perform adjustment of the sen-
sitivity.
Exception:
The ambient air is used for oxygen. (Fresh air contains 20.9
% vol. oxygen.)
●
The device will automatically apply adjusted gases for other
applications or test gases. The requirement for this is:
−
The adjustment was performed on the same day.
●
Failed adjustments are saved in the error list.
6.5.3
Presentation of results
The result of an adjustment is displayed with the following sym-
bols:
Adjustment successful
Acceptance of a successful adjustment
Adjustment failed
Fig. 44: Adjustment - overview of results
Left image: Zero point
Right image: Gases (
here:
ExTox IR, CO adjustment failed)
