Campbell Scientific CS135 Lidar Ceilometer - Manual (Page 40)

CS135 Ceilometer
32
0004 XXXX XXXX Photo diode and Laser windows are dirty. This can only be set if the laser is on
0002 XXXX XXXX Tilt beyond limit set by user, default 45 degrees
0001 XXXX XXXX No communications between DSP and inclinometer board
Description of the middle alarm word (middle word, bits going left to right)
Bit Description
XXXX 8000 XXXX
The sensors internal humidity is high
XXXX 4000 XXXX Communications to the DSP board temperature and humidity chip have failed
XXXX 2000 XXXX DSP input supply voltage is low
XXXX 1000 XXXX Self-test active
XXXX 0800 XXXX Watch dog counter updated
XXXX 0400 XXXX User setting stored in flash failed their signature checks
XXXX 0200 XXXX DSP factory calibration stored in flash has failed its signature check
XXXX 0100 XXXX DSP board OS signature test failed
XXXX 0080 XXXX DSP board RAM test failed
XXXX 0040 XXXX DSP boards on board PSUs are out of bounds
XXXX 0020 XXXX TOP board non-volatile storage is corrupt
XXXX 0010 XXXX TOP board OS signature test has failed
XXXX 0008 XXXX TOP boards ADC and DAC are not within specifications
XXXX 0004 XXXX TOP boards on board PSUs are out of bounds
XXXX 0002 XXXX Communications have failed between TOP board and the DSP
XXXX 0001 XXXX Photo diode background radiance is out of range
Description of the least significant alarm word (right side, bits going left to right)
Bit Description
XXXX XXXX 8000
Photo diode temperature is out of range
XXXX XXXX 4000 Photo diode is saturated
XXXX XXXX 2000 Photo diode calibrator temperature is out of range
XXXX XXXX 1000 Photo diode calibrator has failed
XXXX XXXX 0800 The sensor could not reach the desired gain levels
XXXX XXXX 0400 Laser run time has been exceeded
XXXX XXXX 0200 Laser temperature out of range
XXXX XXXX 0100 Laser thermistor failure
XXXX XXXX 0080 Laser is obscured. This can only be set if the laser is on
XXXX XXXX 0040 Laser did not achieve significant output power
XXXX XXXX 0020 Laser max power exceeded
XXXX XXXX 0010 Laser max drive current exceeded
XXXX XXXX 0008 Laser power monitor temperature out of range
XXXX XXXX 0004 Laser power monitor test fail
XXXX XXXX 0002 Laser shutdown by top board
XXXX XXXX 0001 Laser is off
CR LF = Carriage Return and Line Feed