Campbell CS125, Instruction Manual

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CS125 Present Weather Sensor
24
Emitter
temperature
0-3 1 or 2 0 = Temperature is within operating conditions
1 = Too low. Less than -40°C.
2 = Too high. Over 80°C.
3 = No sensor detected or below -54°C (Severity 2)
Detector lens
dirty
0-3 1 0 = OK. The reported attenuation is below 10%.
1 = Reported window signal value is too low (Possible sensor
fault)
2 = Slight dirt build up (10% signal attenuation or higher)
3 = High level of dirt build up (The hood could be blocked)
Detector
temperature
0-3 1 or 2 0 = Temperature is within operating conditions.
1 = Too low. Less than -40°C.
2 = Too high. Over 80°C.
3 = No sensor detected or below -54°C (Severity 2)
Detector DC
saturation
level
0-1 1 The amount of background light as seen by the detector hood.
0 = Within limits
1 = Saturated. The CS125 no longer has enough head room to
perform visibility readings in most circumstances.
Hood
temperature
0-3 1 or 2 0 = Temperature is within operating conditions.
1 = Too low. Less than -40°C.
2 = Too high. Over 80°C.
3 = No sensor detected or below -56°C (Severity 2)
External
temperature
0-3 1 or 2 0 = Temperature is within operating conditions.
1 = Too low. Less than -40°C.
2 = Too high. Over 80°C.
3 = No sensor detected or below -54°C (Severity 2)
Signature
error
0-4 2-3 0 = No fault
1 = OS signature error at power up (Severity 3)
2 = User memory signature did not match when last read
(Severity 2)
3 = User memory fault at power up. Secondary copy was
reinstated to correct error (Severity 2)
4 = User memory fault at power up. No secondary copy was
found to reinstate. Factory defaults have been reinstated.
System will need re-calibrating (Severity 3)
Flash read
error
0-1 3 0 = No errors
1 = One or more errors reading user variables from flash
occurred
Flash write
error
0-1 3 0 = No errors
1 = One or more errors writing user variables to flash occurred
Particle limit 0-1 1 0 = No errors
1 = More particles detected than can be processed.
(1) The emitter power level reporting too high will cause the CS125 to shut down and go into low power mode.
(2)
The severity of the alarm. The higher the number the more serious the error is considered to be.
Errors are checked every 10 seconds and the next message output is updated with the following exceptions:
Signature error is checked and reset at power up.
Flash read and write errors are checked when flash memory is updated, for example when changes are made
through the memory structure. They are also reset on power up.
Particle limit is checked every minute and reset when read.
Particle count
Range Definition
0-7200 Value represented by an integer number of the current number of particle per minute.
(-99 indicates either an error or that the sensor has been powered less than one minute)