Campbell CMP3-L Dokumentacja Pobierz pdf (Strona 15)

CMP3-L Pyranometer

into the sensor or enclosure connectors. If the resistance is infinite, there

is a broken connection (check the wiring).

4. Disconnect the sensor cable and check the voltage output from the sensor.

With the sensor located 8” below a 60 W incandescent light bulb the

voltage should be approximately 2.5 mV. No voltage indicates a problem

with the sensor.

Symptom: sensor signal is unrealistically high or low

1. Check that the right calibration factor has been properly entered into the

datalogger program. Please note that each sensor has its own individual

calibration factor.

2. Check the condition of the sensor cable.

Symptom: sensor signal shows unexpected variations

1. Check for the presence of strong sources of electromagnetic radiation

(radar, radio etc.)

2. Check the condition and the connection of the sensor shield wire.

3. Check the condition of the sensor cable.

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Campbell CMP3-L Dokumentacja Strona 15