Kipp&Zonen CGR 4 Pyrgeometers - Manual (Page 5)

1. Introduction
Dear customer, thank you for purchasing a Kipp & Zonen instrument. Please read this manual and the
separate instruction sheet for a full understanding of the use of your pyrgeometer.
A CGR series pyrgeometer is a high quality radiometer designed for measuring long-wave irradiance on
a plane surface (radiant flux, W/m2) which results from radiation incident from the hemisphere above the
instrument.
According to the World Meteorological Organisation (WMO) a pyrgeometer is the designated type of
instrument for the measurement long-wave atmospheric radiation.
This manual, together with the instruction sheet, gives information related to installation, maintenance,
calibration, product specifications and applications of the CGR series. Note that the smaller CGR 3
pyrgeometer with a flat infrared window is largely excluded from this manual due to the different
construction. However, the general definitions and principles also apply to this model.
If any questions should remain, please feel free to contact your Kipp & Zonen dealer or e-mail
[email protected]
For information about other Kipp & Zonen products or to check for any update of this manual, go to
www.kippzonen.com
Page 5 CGR 4 Manual