Kipp&Zonen CGR 4 Pyrgeometers User Manual
Page 4
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Table of contents
IMPORTANT USER INFORMTION
Declaration of Conformity
Table of contents
1.
Introduction
2.
Installation and operation
2.1. Delivery
2.2. Mechanical installation
2.2.1. Installation for measurement of long-wave downward radiation
2.2.2. Installation for measurement of radiation on inclined surfaces
2.2.3. Installation for measurement of upward long-wave radiation
2.2.4. Installation for shaded measurement of downward long-wave radiation
2.2.5. Installation for measurement of net long-wave radiation
2.3. Electrical installation
2.4. Operation
2.4.1. Overcast sky
2.4.2. Clear sky
2.4.3. Measurements during a sunny day
2.5. Measurement uncertainty
2.6. Maintenance
3.
Principle components of pyrgeometers
3.1. Window
3.2. Detector
3.3. Temperature sensor
3.4. Housing
3.5. Drying cartridge
3.6. Cable and connector
4.
Pyrgeometer physical properties
4.1. Spectral range
4.2. Sensitivity
4.3. Impedance
4.4. Response time
4.5. Non-linearity
4.6. Temperature dependence
4.7. Tilt error
4.8. Window heating offset
4.9. Zero offset B due to ambient temperature changes
4.10. Operating temperature
4.11. Field of view
4.12. Directional response
4.13. Maximum irradiance
4.14. Non-stability
4.15. Spectral selectivity
4.16. Environmental
4.17. Uncertainty
5.
Calibration
5.1. Calibration principle
5.2. Calibration procedure at Kipp & Zonen
5.3. Traceability to World Radiometric Reference
5.4. Recalibration
6.
CGR models
6.1. CGR 4
6.2. CGR 4 performance specifications
6.3. CGR 4 general specifications
7.
Frequently asked questions
8.
Trouble shooting
Appendix I Radiometric terminology
Appendix II 10k thermistor specifications
Appendix III Pt-100 specifications
Appendix IV List of World and Regional Radiation Centres
Appendix V Recalibration service
CGR 4 Manual