The spectral responses of every UV Radiometer are carefully adapted to the respective measurement application. Precision manufacturing and individual spectroradiometric calibrations ensure a high degree of reproducibility and comparability from unit to unit. The calibrations are linked to other calibration references through Kipp & Zonen\'s international cooperation in projects to establish UV radiation standards.
All Radiometers have an analog voltage output which is proportional to the measured UV irradiance. In addition, the UVS Radiometer models have a control output for the internal stabilized temperature (heated / cooled at 25 ºC).
| | The spectral distribution of atmospheric UV irradiance is very variable, mainly depending on sun elevation and stratospheric ozone. During the calibration of the UVS Radiometers this variability is taken into account by systematic convolution of the spectral response function with observed and modelled atmospheric UV spectra. For the calibration of the UVS Radiometers the sun is the UV radiation source and a Brewer MKIII Spectrophotometer is used to measure the spectral irradiance. Due to this extended calibration method the highest possible measurement accuracy is achieved.
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