36
7 Adjustment menu
adjustment
0 PPM or mg/m3
conc. in PPM or mg/m3
test gas
inspection OK
exit
adjustment
7
Adjustment menu
The adjustments described below relate to the
H
2
adjustment
on the
EX-TEC GM 4
. For other gases, use the test gases given
in section 5.3.
The
O
2
adjustment
is covered explicitly in section 7.2.2. The
EX-TEC OD 4
is adjusted for
THT
or
TBM
as per the
H
2
adjust-
ment
, but the test set
SPE OD
is used with the test and probe
head OD4 (plug connection) and the connection hose supplied
with the test set has to used as well.
7.1
Menu structure
7.2
Sensor adjustment
7.2.1
Setting the H
2
-sensor
0 ppm
This function resets the
zero point
:
z
carry out the adjustment in
fresh air
z
wait for the displayed concentration to reach a stable value
z
press the
on/off key
to confirm .