84 GM32 · Technical information · 8011923 · V 1.4 · © SICK AG
Shutting down/Restarting
Subject to change without notice
Close off the duct-side flange with tube as necessary with a suitable protective cover.
6.2.3 Disconnecting the purge air connection
On systems with purge air supply:
Switch the power supply to the purge air unit off (as necessary, after an appropriate
wait time for cooling down).
Loosen the hose clamp of the purge air hose on the measuring probe or on the optional
differential pressure sensor and take the purge air hose off.
If a differential pressure sensor is fitted (see Fig. 7.10, page 80):
Loosen the hose clamp on the purge air inlet of the measuring probe and take off the
differential pressure sensor including the associated hose piece.
Disconnect the signal cable on the differential pressure sensor by pulling off both
6.3 mm flat pin bushings in the housing.
If the signal cable of the existing measuring point should be reused, protect the cable
end with the open flat pin bushings against atmospheric conditions with insulation
material or a close box.
The next tasks are to first put the purge air unit and further components - as far as applica-
ble - out of operation.
High temperatures
If the sample gas duct is operated at high temperatures, the measuring probe
will remain hot for some time after it has been removed.
It should be handled with care in this case. GMP measuring probes cool
down faster when the purge air supply remains switched on for a few min-
utes.
To Next Page
Loading...
Need help?
General
