Solar Radiometer

The head of the solar radiation sensor has a spectral response as shown in below(general purpose). Models with the prefix SR are cosine corrected to within +/- 2% for angles of incidence up to

Model SRD is environmentally sealed in a 25mm diameter housing 150mm long and is mounted vertically from its ½” BSP male threaded base on suitable water pipe post. Power drain for these sensors is approximately 65 microamps from a regulated source. 150mm of cable is normally supplied with each instrument. Spectral response is shown in Fig. 1.

MODEL SRD-02:

A digital solar radiation sensor having a square wave output which gives a nominal 5000 pulses per megajoule with a calibration accuracy of +/- 5%. (A calibration certificate is supplied with each sensor).