Campbell CNR4 Bedienerhandbuch PDF herunterladen (Seite 17)

CNR4 Net Radiometer

7. After selecting the sensitivity values, click at the left of the screen on

Wiring Diagram to see how the sensor is to be wired to the datalogger.

The wiring diagram can be printed out now or after more sensors are

added.

8. Select any other sensors you have, then finish the remaining Short Cut

steps to complete the program. The remaining steps are outlined in Short

Cut Help, which is accessed by clicking on Help | Contents |

Programming Steps.

9. If LoggerNet, PC400, RTDAQ, or PC200W is running on your PC, and the

PC to datalogger connection is active, you can click Finish in Short Cut

and you will be prompted to send the program just created to the

datalogger.

10. If the sensor is connected to the datalogger, as shown in the wiring

diagram in step 7, check the output of the sensor in the datalogger support

software data display to make sure it is making reasonable measurements.

5. Overview

The CNR4 Net Radiometer consists of a pyranometer pair, one facing upward,

the other facing downward, and a pyrgeometer pair in a similar configuration.

The pyranometer pair measures short-wave solar radiation, and the

pyrgeometer pair measures long-wave far infrared radiation. The upper long-

wave detector of CNR4 has a meniscus dome to ensure that water droplets roll

off easily while improving the field of view to nearly 180°, compared with a

150° for a flat window. All four sensors are integrated directly into the

instrument body, instead of separate modules mounted onto the housing. Each

sensor is calibrated individually for optimal accuracy.

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Campbell CNR4 Bedienerhandbuch Seite 17