Campbell 05103, Руководство пользователя

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05103, 05103-45, 05106, 015108, 05108-45 and 05305 R.M. Young Wind Monitors
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9. Troubleshooting
9.1 Wind Direction
Symptom: NAN, –9999, or no change in direction
1. Check that the sensor is wired to the excitation and single-ended channel
specified by the measurement instruction.
2. Verify that the excitation voltage and range code are correct for the
datalogger type.
3. Disconnect the sensor from the datalogger and use an ohmmeter to check the
potentiometer. Resistance should be about 10 k

between the blue and white
wires. The resistance between either the blue/green or white/green wires
should vary between about 1 k

to 11 k

depending on vane position.
Resistance when the vane is in the 5 degree dead band should be about
1 M

.
Symptom: Incorrect wind direction
1. Verify that the excitation voltage, range code, multiplier and offset
parameters are correct for the datalogger type.
2. Check orientation of sensor as described in Section 7, Installation .
9.2 Wind Speed
Symptom: No wind speed
1. Check that the sensor is wired to the pulse channel specified by the pulse
count instruction.
2. Disconnect the sensor from the datalogger and use an ohmmeter to check the
coil. The resistance between the red and black wires should be about
2075

. Infinite resistance indicates an open coil; low resistance indicates a
shorted coil.
3. Verify that the configuration code, and multiplier and offset parameters for
the pulse count instruction are correct for the datalogger type.
Symptom: Wind speed does not change
1. For the dataloggers programmed with Edlog, the input location for wind
speed is not updated if the datalogger is getting “Program Table Overruns”.
Increase the execution interval (scan rate) to prevent overruns.