Campbell CS135, User Manual

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CS135 Ceilometer
60
7.5 Diagnostic LED Indicators Within the Enclosure
Two green LEDs labelled "LASER ON" and "STATUS" are visible on the DSP
(see Fig 7.3). Their function is as follows:-
"LASER ON" LED:-
Off = laser off
Flashing = laser fault
On = laser on
"STATUS" LED
1 flash every 10 seconds = OK
2 flashes every 10 seconds = warning (possible degraded performance)
3 flashes every 10 seconds = alarm (measurements not possible)
The DSP "STATUS" LED duplicates the LED visible through the top window.
There is a red LED on the PSU. It will give 0.5 second flashes as follows:-
1 flash every 10 seconds = PSU OK
2 flashes every 10 seconds = running in battery mode
3 flashes every 10 seconds = no communications to the DSP. This
takes 60 seconds to start after a communications failure.
Fig 7.3 Diagnostic LED indicators
There is a red LED on the Laser module
Off = Laser off
On = Laser on