Campbell LWS-L Manual del operador Pagina 54

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Campbell Scientific CS300-L Pyranometer
RM72004,000015D -19-07MAY13-1/1
Troubleshooting
NOTE: If troubleshooting indicates sensor damage,
contact your John Deere dealer.
Verify:
power to sensor
correct connections
tight connections
no kinks in harness
Symptom: Radiation Value is -9999 or 0
Disconnect sensor leads and use a digital voltmeter
(DVM) to check voltage between the red, positive (+)
and black, negative (-) wires. Voltage must be 0—200
mV for 0 to 1000 W/m
2
radiation. No voltage indicates
a problem with either the photodiode or shunt resistor,
which are potted in the sensor head and cannot be
serviced.
Symptom: Incorrect Solar Radiation Value
Ensure that sensor head surface is clean and sensor is
level.
60-2
052813
PN=54
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