Cleaning Window/Lens And Reflector; O-Ring - Net Safety UV/IRS-H2-A User Manual

Net Safety Monitoring
C W /L R
LEANING INDOW ENS AND EFLECTOR
When cleaning the window and reflector use the cloth and the cleaning
solution provided with the detector. Use only the provided cleaning solution
as some cleaners can leave a residue or film that may block IR radiation.
To minimize dirt accumulation around the VI surface, a product such as Net
Safety's Air Shield should be purchased to minimize particulate build up on
the viewing window.
WARNING: Always bypass Alarm Output when performing
maintenance tasks and ensure all external equipment are disconnected/
deactivated.

O-ring

The rubber o-ring on the detector housing is used to ensure the detector is
watertight. The housing should be opened periodically and the o-ring
inspected for breaks, cracks or dryness. To test the o-ring, remove it from the
detector housing and stretch it slightly. If cracks are visible, the o-ring
should be replaced. If it feels dry to the touch, a thin coating of lubricant
should be applied (such as polyalphaolefin grease). When re-installing the o-
ring, be sure that it is properly seated in the groove on the housing.
The o-ring must be properly installed and in good condition to prevent water
from entering the detector and causing failure. The life expectancy of rubber
o- rings varies depending on the type and amount of contaminants present in
the area. The person who maintains the system must rely on experience and
common sense to determine how frequently the rings should be inspected. A
coating of lubricant should also be applied to the enclosure threads before
reassembling the detector to help prevent moisture from entering.
MAN-0101 Rev 01 UVIRS-H2-A/H2-AR & UVIRS-H2-A-X/H2-AR-X 19
November 23, 2012