Chapter 5 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 75
Maintenance Commands
The maintenance commands are used in installation, maintenance, and
troubleshooting. They are as follows:
- STA, Displays status
- CAL Calibrator _frequency, Calibration
- CLEAN, Sets clean references
- ZERO, Displays zero and noise test status
- CHEC, Displays calibrator test signal
- DRY ON, Sets RAINCAP
®
dry offset
- WET ON, Sets RAINCAP
®
wet scale
- TCAL, Sets the TS temperature (ambient)
- HEAT, Pulls hood heater relays on
STA
The STA command (or MES 3 command) displays the results from the
built-in test system as a status message.
The system output is the following (example for PWD22):
PWD STATUS
VAISALA PWD22 V 1.00 2003-12-15 SN:Y46101
SIGNAL 3.43 OFFSET 146.11 DRIFT 0.00
REC. BACKSCATTER 2802 CHANGE 2
TR. BACKSCATTER -2.3 CHANGE 0.0
LEDI 2.3 AMBL -1.0
VBB 12.6 P12 11.4 M12 -11.3
TS 24.6 TB 29
TDRD 24 25 DRD 858 854 DRY 857.5
BL 26
RELAYS OFF OFF OFF
HOOD HEATERS OFF
HARDWARE :
OK
The length of the message varies depending on the options configured in
PWD22/52 and whether there are warning messages. An asterisk (*)
before a value indicates an exceeded limit.
If the Background Luminance Sensor PWL111 is not installed, line BL
26 is omitted. If the optional hood heaters are not installed, the line
HOOD HEATERS OFF is omitted. For details on message values , see
Appendix A, Internal Monitoring, on page 105.
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