With thermopile CA 2 radiant fluxes can be measured. It is sensitive to radiation from 0.2 to 50 µm, and has a field of view of 10 º. The field of view is determined by cylindrical brass housing, that contains a conical reflector and a removable glass window.

The thermopile is very suitable for control (ovens) or demonstration (schools) purposes and can be used for reference-measurements.

The CA 2 thermopile contains a thermal detector. It responds to the total power absorbed. Because the absorber is coated with Kipp & Zonen Carbon Black paint it is spectrally non-selective.

The thermopile output is a voltage that is proportional to the radiation that is received.

Irradiance measurements are easily affected by convection and thermal radiation losses to the environment. Therefore a glass window can shield the detector. By using this window, the spectral range is limited to 0.3 to 3 µm.

The thermopile is delivered with a calibration certificate.

Main features :

• sensitive to radiation from 0.2 to 50 µm
• field of view of 10º
• very suitable for control (ovens) or demonstration (schools)