Kippzonen CGR 4 Pyrgeometers Manuel d'utilisateur télécharger pdf (Page 14)

For the CGR 4 the eﬀect of each parameter on the sensitivity can be shown separately. The non-linearity

error, the sensitivity variation with irradiance, is the same for any CGR 4 and is shown in Figure 8.

Figure 8: Non-linear sensitivity variation with irradiance of a CGR 4 pyrgeometer

The temperature dependence of the sensitivity is a function of the individual CGR 4. For a given CGR 4 the

response lies in the region between the curved lines in Figure 9. The temperature dependence of each CGR

4 pyrgeometer is characterised and supplied with the instrument. Each CGR 4 has a built-in temperature

sensor to allow corrections to be applied if required.

Figure 9: Typical temperature dependency of a CGR 4

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Kippzonen CGR 4 Pyrgeometers Manuel d'utilisateur Page 14