COMMISSIONING
MAN0987_Iss 2_09/16
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FSL100 Series Flame Detectors
Technical Handbook
6.4 Fault Testing
Refer to the manufacturer’s instructions before carrying out any testing as some controllers require sensors to be
decommissioned before removal or replacement.
1. Always follow a structured fault analysis and test regime.
2. Check the suspect FSL100 for signs of displacement, contamination, damage, loose or damaged cables, transient sources
etc.
3. Cover the FSL100 optics to ensure that no light or other radiation can reach the sensor and wait 30 seconds for the sensor
to return to normal. A continuing alarm state may be caused by the cabling or by the electronics. Ensure that the detector
window is uncovered after this test.
4. Check off the items listed in the section on Commissioning.
5. Check the power supplies; cables, voltage, current, ripples on the voltage signal etc.
6. Replace the flame detector with a known serviceable spare and re-test.
Caution
Always ensure that relay operated outputs and alarms are inhibited or isolated before carrying out any work on
Alarm systems.
Always ensure that Alarm Systems are returned to Normal Operation when work is completed.
