Spectrex 20/20MU - Mini Flame Detector - Manual (Page 41)

Spectrex Inc. - SharpEye TM ML & MU Flame Detector Manual – TM 767100, Rev. A, April 2005
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unit is sent to the manufacturer or distributor for service, a copy of the
Maintenance records should accompany it.
8.6 Troubleshooting
8.6.1 Fault Indication
1 Check power supply for correct voltage, polarity and wiring.
2 Check detector window and reflector for cleanliness. If necessary clean the
window as indicated in paragraph 8.3 and repeat the test.
3 Disconnect the power supply to the system and check the detector's internal
wiring.
4 Reconnect power supply and wait approximately 60 seconds. Repeat the test.
If the indication LED is still flashing (4 Hz) yellow, the unit requires service.
8.6.2 False Alarm or Warning Indication
1 Disconnect the power supply from the system and check internal wiring.
2 Reconnect power supply and wait approximately 60 seconds. If indication
remains, the unit requires service.