Shutting down/Restarting
GM32 · Technical information · 8011923 · V1.4 · © SICK AG 85
Subject to change without notice
6.2.4 Putting the purge air unit out of operation
On systems with purge air supply:
If the existing measuring point is to used for the purge air unit again, e.g., for a different
measuring system:
Check the technical data or contact SICK to determine whether the purge air unit is suit-
able for the planned application purpose.
If yes: Close off the open end of the purge air hose tight to prevent dirt or moisture
entering the hose.
If no further use on the measuring point is planned:
Remove the weatherproof cover, if fitted, from the purge air unit.
Open the connection unit, loosen the connection cable clamps and remove the cable.
If the connection cable is to remain at the measuring point, insulate the open cable end
and protect them with a close box against atmospheric conditions.
Loosen the fastening screws of the purge air unit and take it off from the retainers or
base as completely assembled unit
If desired, remove the purge air hose. To do this, loosen its hose clamp on the outlet
connection of the purge air unit.
WARNING: Ensure the power supply remains switched off
Ensure the power supply of the purge air unit is completely switched off and
remains so by switching off the corresponding circuit breaker and the motor
switch, and secure these against being switched on again.
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