Campbell Scientific CNR1 Net Radiometer - Manual (Page 3)

CNR1 Table of Contents
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1. General Description.....................................................1
2. Sensor Specifications .................................................1
2.1 CNR1 Specifications ................................................................................1
2.2 CM3 Specifications ..................................................................................2
2.3 CG3 Specifications ...................................................................................3
3. Installation....................................................................3
3.1 Connecting and Using the Heater .............................................................5
4. Using the CNR1 in the Four Separate
Components Mode (4SCM)....................................5
4.1 Measuring Solar Radiation with the CM3 ................................................5
4.2 Measuring Far Infrared Radiation with the CG3 ......................................6
4.3 Measuring the CNR1’s Temperature with the Pt-100 ..............................6
4.4 Calculation of the Albedo for Solar Radiation .........................................7
4.5 Calculation of the Net Solar Radiation (Net Short-Wave) .......................7
4.6 Calculation of the Net Infrared Radiation (Net Long-Wave) ...................7
4.7 Calculation of the Net (total) Radiation....................................................8
5. Wiring............................................................................8
6. Datalogger Programming..........................................11
6.1 Calibration Factor ...................................................................................12
6.2 Example Programs..................................................................................12
6.2.1 Example 1, CR1000 Using Differential Channels ........................12
6.2.2 Example 2, CR5000 Using Differential Channels (no 4WPB100)14
6.2.3 Example 3, CR23X Program Using Differential Channels...........17
6.2.4 Example 4, CR23X Program Using Single-Ended Channels .......20
7. Calibration ..................................................................22
8. Troubleshooting ........................................................23
8.1 Testing the CM3 .....................................................................................23
8.2 Testing of the CG3 .................................................................................24
8.3 Testing the Pt-100...................................................................................24
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