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F-Guard IR3 H2 HD User Manual
5
Maintenance
After powering up, the detector should work maintenance free. Regular checks should be in the form of a
physical inspection and to periodically ensure the optical surfaces are clean (windows and reflective mirror).
It is also recommended to perform a function test annually or in line with local requirements, whichever is
the sooner.
Warning
The sensor module in the front half of the detector contains no serviceable components and should never
be opened. The terminal compartment at the back is the only part of the housing that should be opened by
the user. Any violation of these instructions will invalidate the warranty.
Cleaning Procedure
To clean the detector:
a) Disconnect the power to the unit and disable/inhibit any extinguishing equipment that is connected
to the unit.
b)
Use water and detergent to clean the detector windows and underside of the reflector. Rinse with a
soft cloth, cotton swab, or tissue.
c)
Where dust, dirt or moisture accumulates on the window, first clean the window with a soft optical
cloth and detergent, and then rinse with a clean soft cloth, cotton swab, or tissue. If contamination
continues to be an issue consider using the air shield.
