Alignment Telescope; Operational Maintenance (Fm) - Honeywell Searchline Excel Technical Handbook

Infrared gas detectors
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MAN0530 Issue 10 - 11/09
2104M0506
Current Reading
The first line of the display shows the name of the gas or its identifier in a special gas
table.
The second line shows the gas reading and measurement units along with a gas detector
status indicator.
The status character at the end of the second line indicates one of the following:
/ -
-
w -
F -
B -
(7)
Switch off the Interrogator (see section 3.7.7 Finishing Up) and disconnect it from the
gas detector.

4.5 ALIGNMENT TELESCOPE

To clean the telescope lens/mirror:
(1)
Moisten the surface of the lens/mirror by breathing on it.
(2)
Using a soft tissue or lens cloth, lightly wipe the lens/mirror dry with a minimum number
of strokes.
The wiping material may be slightly dampened with a lens cleaning fluid as sold in any
camera store.

4.6 OPERATIONAL MAINTENANCE (FM)

As required as a criterion for the FM Performance Approval, routine operational verification is
recommended once within a three month period and is required once within a six month period
using one of the following methods.
The following procedure will indicate a gas reading. Ensure all required
personal have been notified prior to starting and completing the procedure.
4. MAINTENANCE
Normal Operation
A spinning line shows the unit is in the fully active state.
Inactive State
A stationary line shows the unit is in the inactive state.
Active Warning
Active Fault
Beam Blocked
WARNING
59
Gas Type
Status character
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