Step Periodic Inspection and Maintenance Suggested Interval
1-6 General Inspection and maintenance of the detector and faceplate 6 monthly
6-14 Specific inspection and maintenance of the detector enclosure 12 monthly
16 Detector function testing 6 monthly
1-5
15-17
Commissioning Procedure
Post Installation
Step Activity Key Points
1
Detectors that require maintenance/ commissioning should be taken off
line and inhibited. Detectors which require to be opened up will need to be
isolated electrically.
Ensure that panel
wiring and terminations
associated with all units
under test are in good
order.
2 Ensure that detector mounting arrangements are secure and undamaged.
3 Ensure that the detector enclosure is intact and undamaged.
4
Ensure that all associated cables and glands are correctly made up, secure
and undamaged.
5
Clean the enclosure faceplate (outside) with a mild detergent solution and a
soft cloth until the window is clear of all contamination. Wash the window
thoroughly with clean water and dry with a clean lint free cloth or tissue.
Assess requirement for
opening the enclosure, for
maintenance or cleaning,
follow steps 6 to 14
6
Open up the detector enclosure if required, by removing the enclosure cover.
This exposes the enclosure flame path and detector lens.
Avoid damage to the flame
path, faceplate and lens.
7
Clean the enclosure cover and body flame paths with a dry clean cloth to
remove any contamination. If the flame path or threads are badly pitted the
component should be replaced.
8
Check the ‘O’ ring seal on the enclosure cover is not damaged or perished,
replace as required. Note the ingress protection is compromised if the seal is
not correct.
9
Clean the enclosure faceplate (inside) with a mild detergent solution and a
soft cloth until the window is clear of all contamination. Wash the window
thoroughly with clean water and dry with a clean lint free cloth or tissue
10
Non-setting waterproof grease should be evenly applied to the flame path on
both the enclosure cover and body.
11
Clean the detector lens. This should be done with a soft, dry and clean cloth.
Avoid touching the optics
or electronics.
12
Clean the detector enclosure faceplate. Use a degreasing agent on the
outside in order to remove deposits.
13
The enclosure cover must be screwed on to a minimum of 5 full turns or until
fully tight and secured using the locking screw provided.
14 Reinstate the detector back into service.
15
Ensure that inhibits are applied, then, using the flame test torch, function test
the detector. Note the detector LED indicator, within the detector housing,
changes colour to RED.
Check the complete display
system for correct function
and indication.
16
Isolate the power to the detector and ensure a fault is initiated within the
control system. Check the mA output is indicating 0mA.
17
De-isolate the detector and ensure the status LED indicates green. Reinstate
the detector back into service.
FDS301 Flame Detector FDS301 Safety and Technical Manual
25
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