5.6.5
Installing the Ex purge air unit
NOTE
Purge air hose to the device according to project planning.
NOTE
For information on installing the purge air unit, see the Operating Instructions of the
purge air unit.
CAUTION
Risk of device damage caused by inadequate purge air pressure
The purge air supply protects the measuring system from contamination and overheat‐
ing. If the purge air pressure is inadequate, the purge air can not enter the gas duct.
This can result in inadequate provision with purge air and therefore a device failure.
b
Ensure the purge air pressure is adequate to force the purge air into the gas duct.
b
If you have questions concerning the purge air pressure, contact SICK Customer
Service or your local SICK representative.
DANGER
Risk of explosion by suctioning air from Ex zone 1
The Ex purge air supply may not suction air from Ex zone 1.
b
Observe zone separation of the purge air supply, air may be suctioned only from
the non-Ex zone or from Ex zone 2.
5
MOUNTING
34
O P E R A T I N G I N S T R U C T I O N S | GM32-Ex
8015558/YYJ8/V1.7/2016-07 | SICK
Subject to change without notice
