82 GM32 · Technical information · 8011923 · V 1.4 · © SICK AG
Shutting down/Restarting
Subject to change without notice
6.1 Qualification requirements
The same qualifications as for maintenance are required for shutting down.
Correct handling of system components
During all work, ensure system components are not subjected to excessive mechanical or
climatical stress:
● Always secure the SR-unit in a safe location and free from jolts.
● Protect system components against rain, dust or other unallowed ambient conditions,
especially when dismounted.
6.2 Shutting down
6.2.1 Equipment required
● Personal protective clothing and equipment (see safety information above)
● At least the following tools:
– Complete wrench set containing, apart from others, the following wrenches:
– 2 x 24 mm open-ended spanners or ring spanners
– 1 x 19 mm open-ended spanner or ring spanner
– Allen key set
– Insulated screwdriver set
● Cleaning cloths for rough cleaning the outside of devices
● Consumables; when the measuring system is to be used again:
– Desiccant cartridge (Part No.: 2 010 549) including the pin wrench provided to
exchange the cartridges
● Suitable cover to close off the duct-side flange with tube after removing the measuring
system (when necessary)
● Stored transport safety devices and, when available, the original packaging of the mea-
suring system
● Insulation material/close box to protect cables against atmospheric conditions
Safety information for shutdown
Wear suitable protective clothing and a protective mask when the sample
gas is hot and/or aggressive or has a high dust load, or when the sample
gas duct is under high pressure. Never open the housing, release the quick-
release fasteners or remove the measuring probe without taking appropri-
ate protective measures.
If the conditions in the sample gas duct are particularly difficult and do not
allow work on the open duct, even with protective equipment, the work
must be carried out when the sample gas duct is inactive or has been
flooded with ambient air.
The purge air feed must remain in constant operation and the SR-unit may
not be opened or swiveled as long as the measuring probe is in the sample
gas duct. This is also applicable when the sample gas duct is out of opera-
tion because residual gases or dust can lead to contamination or corrosive
deposits on the system components.
As described in the following, to protect against IR radiation, first switch off
the power supply to the SR-unit and disconnect the power supply plug
before opening the housing or swiveling the flange fixture.
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