SICK GM35

82
8009441/YN36/V3-0/2015-08| SICKOPERATING INSTRUCTIONS|GM35
Subject to change without notice
START-UP
Fig. 62: Connections for the purge air hoses on the purge air fixtures
Purge air supply is now activated and protects the measuring system against contamination
and overheating. Purge air feed must never be switched off when the SR-unit and reflector
are on the sample gas duct.
▸ Attach clearly visible warning information against unintentional switching off on all
switching devices with which the purge air units can be switched off.
7.6.3 Sender/receiver unit and reflector start-up
▸ Attach the SR-unit and reflector to the purge air fixtures as described on
page 73, and
especially as from page 75.
▸ Connect the cable connections as described on “Electrical connections”, page 78 and
“Cable routing diagram”, page 28 and switch the power supply for the sender/receiver
unit and reflector unit on.
▸ Connect the functional earth cable to the screw terminal provided.
Purge air hose connection (purge air
connection), SR side
Purge air hose connection (purge air
connection), reflector side
WARNING: Protection against hazards through hot resp. aggressive gases
▸ Wear suitable protective clothing (mask, gloves, working clothing and other)
to avoid health risks and other hazards when opening the sample gas duct.
If the protective clothing does not allow safe working on the open sample
gas duct under the current conditions or if the sample gas duct is in
operation and cannot be opened as this would allow gas to escape or air to
enter the duct:
Contact the persons responsible to have the sample gas duct shut down for
the duration of the installation procedure and, when possible, have the duct
flushed with ambient air to ensure safe installation.