The CA2 Laboratory Thermopile allows radiant fluxes to be measured. It is sensitive to radiation from 0.2 to 50 µm, and has a field of view of 10°. The field of view is determined by cylindrical brass housing, that contains a conical reflector and a removable glass window.Enquire about this product
- Sensitive to radiation from 0.2 to 50 µm
- Field of view of 10 °
The thermopile is very suitable for control (ovens) or demonstration (schools) purposes and can be used for reference-measurements.
The CA2 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.
|Spectral range (without window)||0.2 to 50µm|
|Spectral range (with window)||0.35 to 2.8µm|
|Sensitivity (Parallel beam on front window)||7 to 20µV/W/m²|
|Impedance||20 to 200Ω|
|Expected output range (0 to 1500 W/m²)||0 to 30mV|
|Maximum operational irradiance||2000 W/m²|
|Response time (63%)||< 6s|
|Response time (95%)||< 18s|
|Non-linearity (100 to 1000 W/m²)||< 1.5%|
|Field of view||20° (for 90% of the received radiation)|
|Mounting rod||170 mm long x 10 mm Ø|
|Operational temperature range||-40°C to +80°C|
|Storage temperature range||-40°C to +80°C|
|Humidity range||0 to 100% non-condensing|
|Ingress Protection (IP) rating||For use in clean indoor conditions only|
- CA2 Laboratory Thermopile Brochure (pdf 0.1MB)