Spectrex SharpEye 40/40I, User Manual

Page: 53 / 85

TM 40/40I, Rev (14) February 2017
Troubleshooting 53
4.2 Troubleshooting
This section is a guide to correct problems which may happen during normal
operation.
Table 20: Troubleshooting Table
Problem Cause Corrective Action
LEDs Off
Fault Relay at N.O.
0 – 20mA at 0mA
No power to the
unit

Check that the correct power
is sent to the detector.

Check power polarity.

Check wiring in the detector.

Send the detector back for
repairs.
Yellow LED flashes
at 4Hz
Fault Relay at N.O.
0 – 20mA at 0mA
Fault Detector

Low Voltage

Faulty Detector

Check the voltage at the
detector; verify at least 24V
at the detector terminal.

Send the detector back for
repairs.
Yellow LED flashes
at 4Hz
Fault Relay at N.O.
0 – 20mA at 2mA
BIT Fault

Faulty Detector

Clean detector window.

Re-power the detector.

Replace the detector.
Red LED
constantly on If no fire exists,
then detector
alarm latched
Perform a Reset .
Alarm Relay at On
0
– 20mA at 20mA
Alarm condition

Check cause of alarm.

If no alarm, re-power the
detector.

Send the detector back for
repairs.
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