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5
– Maintenance
23
■
Wait for the measurement to stabilize
(displayed on screen) and adjust the
zero
by
using
the
ZERO
potentiometer located on the sensor
pack (ref. 2).
■
Inject the recommended calibration
gas at a flow rate of 30 l/h.
■
Wait for the measurement to stabilize.
■
Adjust the sensitivity by using the
sensitivity potentiometer located on
the sensor pack (rep. 1).
Figure 17
■
Stop injecting the calibration gas.
■
Remove the gas injection pipe, then
wait and verify that the signal returns
to zero. Repeat procedure if it does
not.
■
Calibration is complete.
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