Campbell Scientific Kipp and Zonen CMP-Series Pyranometers User Manual
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CMP/CMA series manual
Page
3
Table of Contents
IMPORTANT USER INFORMATION ....................................................................................................... 1
Declaration of Conformity ......................................................................................................................... 2
Table of Contents ..................................................................................................................................... 3
1.
Introduction .................................................................................................................................... 5
2.
Installation and operation............................................................................................................... 6
2.1.
Delivery .......................................................................................................................................... 6
2.2.
Mechanical installation................................................................................................................... 6
2.2.1.
Installation for measurement of global radiation ........................................................................ 6
2.2.2.
Installation for measurement of radiation on inclined surfaces.................................................. 8
2.2.3.
Installation for measurement of reflected radiation .................................................................... 8
2.2.4.
Installation for measurement of diffuse radiation ....................................................................... 9
2.2.5.
Installation for measurement of albedo...................................................................................... 9
2.2.6.
Underwater use .......................................................................................................................... 9
2.3.
Electrical installation .................................................................................................................... 10
2.4.
Operation ..................................................................................................................................... 11
2.5.
Measurement uncertainty ............................................................................................................ 11
2.6.
Maintenance ................................................................................................................................ 13
3.
Principle components of pyranometers ....................................................................................... 14
3.1.
Dome ........................................................................................................................................... 14
3.2.
Detector ....................................................................................................................................... 15
3.3.
Housing........................................................................................................................................ 15
3.4.
Drying cartridge............................................................................................................................ 15
3.5.
Cable and connector.................................................................................................................... 15
4.
Pyranometer physical properties ................................................................................................. 16
4.1.
Spectral range.............................................................................................................................. 16
4.2.
Sensitivity..................................................................................................................................... 16
4.3.
Impedance ................................................................................................................................... 16
4.4.
Response time ............................................................................................................................. 16
4.5.
Non-linearity................................................................................................................................. 17
4.6.
Temperature dependence ........................................................................................................... 17
4.7.
Tilt error........................................................................................................................................ 17
4.8.
Zero offset A ................................................................................................................................ 17
4.9.
Zero offset B ............................................................................................................................... 18
4.10.
Operating temperature ............................................................................................................. 18
4.11.
Field of view ............................................................................................................................. 18
4.12.
Directional response ................................................................................................................ 18
4.13.
Maximum irradiance................................................................................................................. 18
4.14.
Non-stability.............................................................................................................................. 19
4.15.
Spectral selectivity ................................................................................................................... 19
4.16.
Environmental .......................................................................................................................... 19
4.17.
Uncertainty ............................................................................................................................... 19
5.
Calibration.................................................................................................................................... 20
5.1.
Calibration principle ..................................................................................................................... 20
5.2.
Calibration procedure at Kipp & Zonen ....................................................................................... 20
5.2.1.
The calibration facility............................................................................................................... 20
5.2.2.
Calibration procedure............................................................................................................... 20
5.2.3.
Calculation................................................................................................................................ 21
5.2.4.
Zero offset ................................................................................................................................ 21
5.3.
Traceability to World Radiometric Reference .............................................................................. 21
5.4.
Recalibration ................................................................................................................................ 21
6.
CMP/CMA models ....................................................................................................................... 23
6.1.
CMP 6 / CMA 6 ............................................................................................................................ 23
6.2.
CMP 11 / CMA 11 ........................................................................................................................ 23