Service command

The service command triggers the SkyVue PRO to go through a series of tests including tests that require the white test surface (ceilometer calibration plate supplied) to be placed on the SkyVue PRO windows.

The service command results in the following procedures:

• System noise level including noise spike test
• Detector maximum gain test
• Simulates a clear night sky for calibration offset
• Window contamination functionality test
• Laser function and monitoring alarm check
• Thermistor fault alarm check
• Calibrator LED alarm check
• PSU supply alarm check
• Temperature RH% sensor alarm check
• Inclinometer alarm check
• Heater/blower alarm check
• Internal clocks alarm check
• Top board and PSU communications alarm check.

If any test or check has failed, then full instrument status and debug information is output with a fault summary at the end.

The response is similar to the following:

Initially the SkyVue PRO outputs a STATUS message, then goes through various self-test routines before requesting a white test surface to be placed over each of the windows in turn. This process is as follows:

Cover the detector window and press Enter . The computer will respond:

Cover the laser window and press Enter . The computer will respond:

When this is complete, the SkyVue PRO will output a string of diagnostic data similar. This is useful for a Campbell Scientific engineer investigating problems with the SkyVue PRO.

Finally, the SkyVue PRO will list any faults found as shown below:

Otherwise it will report the following message: