76
MAN0530 Issue 09 October 03
Searchline Excel
2104M0506
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:
/
-
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.
w
-
Active Warning
F
-
Active Fault
B
-
Beam Blocked
(7)
Switch off the Interrogator (see section
3.7.7 Finishing Up
) and disconnect it from the
gas detector.
5.5
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.
5.6
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.
WARNING
The following procedure will indicate a gas reading. Ensure all required personal
have been notified prior to starting and completing the procedure.
•
Following the procedure described in section
5.1.2
insert a known test filter in the beam
path. Record the response to the test filter and verify that the response is within the
tolerance for stability and repeatability.
•
Following the procedure described in section
5.1.3,
test the unit s response to high %V/V
gas in a gassing cell. Verify that the response is within the tolerance for stability and
repeatability.
•
For Cross-Duct units, follow the procedure described in section
4.7.2
and verify that the
response to high %V/V gas introduced into the gassing cell is within the tolerance for
stability and repeatability.
5. MAINTENANCE
Содержание Searchline Excel Cross-Duct
Страница 1: ...Searchline Excel Infrared Gas Detectors Open Path and Cross duct Technical Handbook ...
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