Spectrex Series 300 Open-Path Gas Detection System - Manual (Page 60)

Spectrex Inc. - SafEye TM 300 Gas Detector Manual – TM 794100, Rev. D, May 2004
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8. Troubleshooting
Problem Cause Solution
LEDs are off and Fault is
indicated at 0 mA level Power is not supplied to
the Detector Supply power to the
Detector
Both LEDs are on at
yellow and fault is
indicated at 0mA level Fault 2 Bring the detector unit for
service.
Both LEDs are flashing at
yellow and fault is
indicated at 0mA level Low voltage is supplied
to the detector Check the voltage level
supplied to the detector
Dirt has accumulated on
the detector's window or
on the Light Source's
window Clean the optical
windows (See Section
7.2.1).
One unit at least has
been moved or tilted Perform Realignment
(See section 6)
Power is not supplied to
the Light Source Supply power to the Light
Source
The optical open path
beam is blocked Remove the obstruction
One unit at least has
been moved or tilted Perform Realignment
(See section 6)
One LED is on at yellow
and 4-20mA indication
level is 2mA
Electrical problem at the
Light Source Perform SIC in order to
measure signal intensity
Bring the Light Source to
a technician for service if
it is not flashing