Campbell 020C, Инструкция по эксплуатации

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020C Wind Direction Sensor
10
8.1 Troubleshooting
Consult TABLE 8-1 for recommended actions to resolve various problems.
TABLE 8-1. 020C Wind Direction Sensor Troubleshooting
Symptom Probable Cause Solution Refer to
No wind
direction
output
Loss of supply
voltage
Check datalogger
12 Vdc supply
and connecting
cables
TABLE 7-1 ,
Wire Color, Wire
Function, and
Connections
(p. 5)
No wind
direction
output
Faulty integrated
circuit amplifier
(output often will
be steady 5.0 V)
Replace IC
amplifier (plug-
in)
Contact
Campbell
Scientific for
repair
authorization
No wind
direction
output
Faulty
potentiometer
Replace
potentiometer
Contact
Campbell
Scientific for
repair
authorization
No change in
wind
direction
output below
2 to 5 mph
Bad bearings Replace bearings
Contact
Campbell
Scientific for
repair
authorization
8.2 Maintenance Schedule
6 to 12 Month Intervals:
1. Inspect sensor for proper operation per Section 7.5 , Sensor Check-Out
(p. 9)
.
2. Return to Campbell Scientific for calibration.
12 to 24 Month Intervals:
1. Return to Campbell Scientific for replacement of sensor bearings.
2. Return to Campbell Scientific for replacement of sensor potentiometer.
9. References
The following references give detailed information on siting wind-speed and
wind-direction sensors.
EPA, 1989: Quality Assurance Handbook for Air Pollution Measurements
System , Office of Research and Development, Research Triangle Park,
NC, 27711.