52
Maintenance
Span calibration for CatEx
If the measuring range end value < = 100%LEL, the adjustment for the heat tinting
is offered.
Display in the case of channel
selection:
Open the test gas cylinder valve to let
test gas flow over the sensor.
Press the key to start the
calibration for the heat tinting or press
the -key to select the next sensor.
If the displayed measurement value is
stable:
Press the key to perform the
calibration.
The display containing the current
gas concentration changes with the
display »OK«.
Press the key or wait for approx. 5
seconds to end the calibration of this
measuring channel.
The next measuring channel is
offered for calibration.
After the calibration of the last
measuring channel, the device
changes to measuring mode.
Close the test gas cylinder valve and remove the device from the calibration cradle.
05823999_en.eps
ch
4
%LEL
CO
2
ppm
O
2
Vol%
CO
ppm
H
2
S
ppm
NH
3
ppm
03623999_01_en.eps
ch
4
%LEL
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