34
8012707/ZVF9/V2-1/2019-04 | SICK
O P E R A T I N G I N S T R U C T I O N S | GM32
Subject to change without notice
4
START-UP
5
Switch the power supply of the purge air unit on again.
4.11
Installing the measuring probe in the gas duct
1
Insert the measuring probe with purge air fixture or flange attachment (without SR-unit)
in the flange with tube on the duct side.
– For GMP measuring probe: Do not interrupt the purge air feed.
– For GPP measuring probe: Do not interrupt the power supply to the measuring probe.
2
Screw the measuring probe with purge air fixture or flange attachment tight to the flange
with tube (seal with 4 screws).
The purge air supply protects the measuring system from contamination and
overheating.
▸
Ensure that the purge air pressure is adequate to push the purge air into the gas
duct.
The purge air supply may not be switched off while the gas analyzer is on the gas duct.
▸
Attach clearly visible warnings against accidental switching-off to all switching
devices where the purge air supply can be switched off.
NOTE: Hazard of dropping down
SR-unit and probe are heavy.
▸
Install the SR-unit and the probe separately.
NOTE: With the GPP probe: Danger of condensation
The GPP probe must have reached its operating temperature before the measuring
probe is inserted in the gas duct.
▸
Wait until the probe has reached its operating temperature before inserting the
probe.
Do not switch the GPP probe heater off as long as the GPP probe measuring system is in
the gas duct.
▸
Attach clearly visible warnings against accidental switching-off to all switching
devices where the GPP probe heater could be switched off.
