FL4000
57
5.0 Maintenance
5.1 General Maintenance
Once correctly installed, the unit requires very little maintenance other than regular sensitivity
checks and cleaning of the window. General Monitors recommends that a schedule be
established and followed.
NOTE:
The removal of particulate matter and any film buildup on the Sapphire Window and
COPM Reflector is necessary to ensure proper sensitivity of the system. It is
recommended that the window and reflector be cleaned at least every 30 days if the
detector is located in a particularly dirty environment.
5.2 Cleaning the Sapphire Window
A clean, soft, lint-free cloth, tissue or cotton swab should be used to apply the cleaning solution.
The window is not glass; it is made from sapphire. The cleaning solution should be General
Monitors’ P/N 10272-1 (Industrial Strength Windex® with Ammonia D).
Do not touch the window or COPM reflector with fingers.
1. Wet the window with the solution.
2. Rub with a dry, unsoiled cloth until the window is clean.
3. Completely dry the window.
4. Repeat steps 1, 2 and 3 for the reflector.
CAUTION:
Dirty or partially blocked windows can significantly reduce the detectors field of
view and detection distance. Do not use a commercial glass cleaner other than
Industrial Strength Windex
®
with Ammonia D.
Figure 25: Optical Parts to Clean