IL1735 Solar UV Radiometer System
Meter: IL1700 Research Radiometer
Detector: SED240/SPS300/T/W
Dynamic Range: 6 x 10-9 to 1.0 W/cm2
Spectral Range: 250 to 400 nm
The IL1735 Solar UV Radiometer features the new SPS300 Super Solar-Blind UV filter, which when used in conjunction with the SED240 Solar Blind Vacuum Photodiode, provides a billion-to-one vis/IR rejection. This is a critical feature, since nearly all of the sun's energy is in the longer wavelengths.IL1435 Solar UV Radiometer System
Meter: IL1400A Radiometer / Photometer
Detector: SEL240/SPS300/T/W
Dynamic Range: 6 x 10-7 to 1.0 W/cm2
Spectral Range: 250 to 400 nm
A specially designed sharp cut filter (CR205) may be used to make a band subtraction measurement to further remove the blue visible component.
The proprietary thin film filter technique requires the T/W double diffuser to render an accurate cosine response without any wavelength shift.
The system is calibrated on a proprietary solar simulator, integrated below 315 nm. This 'SOL' calibration is the key to the system's NIST traceable accuracy.