- Biospherical Instruments' PUV-2500 Profiling Ultraviolet Radiometers are battery-powered, submersible radiometers that may be operated as instantaneous profilers of UV radiation and as data loggers — integrating and recording data from all sensor channels at user-defined intervals. The system has been specifically designed to measure downwelling (cosine) irradiance, pressure/depth, and temperature. Irradiance bands are 305, 313, 320, 340, 380, and 395 nm, and PAR (400–700 nm). The 305 nm sensor is designed to respond to the region of the UV-B spectrum strongly affected by atmospheric ozone concentration. Similarly, the 313, 320, 340, and 395 nm detectors incorporate custom interference filters that, in combination with UV-passing/light-blocking filters and sensitive silicon photodiodes, minimize errors associated with spectral leakage.
- High speed, very wide dynamic range
- Standard 6 UV wavelengths and PAR downwelling irradiance
- Standard upwelling natural fluorescence radiance channel
- Small, rugged, lightweight, battery-powered
- Hand deployed in lowering frame or free-fall (optional)
- Available with a radiometrically matching surface sensor (PUV-2510)
- Individual cosine collector simplifies optical calibrations and is optimized for use underwater (PUV-2500) or in air (PUV-2510)
- Requires just a single COM port for both instruments (PUV-2500 and PUV-2510)