Kipp&Zonen CM 4 Pyranometer User Manual
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6.3.5 Traceability to World Radiometric Reference
Working reference pyranometers are maintained at Kipp & Zonen.
Each reference pyranometer is characterised. Linearity, temperature
dependence curve and directional response are well known.
The working reference pyranometers are calibrated each year at the
World Radiation Center in Davos, Switzerland, according to the
component method.
6. CALIBRATION