GUV-2511 Ground-based Ultraviolet Radiometer System

The GUV-2511 Ground-based Ultraviolet Radiometer has been specifically designed to measure cosine-corrected downwelling irradiance at 305, 313, 320, 340, 380, 395 nm and PAR (400-700 nm).  Additional wavelengths are available optionally.  Incorporating a custom interference filter with a "solar blind" detector to reduce red-leakage, the 305-nm sensor is designed to respond to the region of the UV-B spectrum strongly affected by atmospheric ozone concentration.  Similarly, other UV sensors incorporate custom interference filters and sensitive silicon photodiodes to minimize errors associated with spectral leakage. 

To minimize on the measurement of diel temperature changes, the GUV-2511 features active internal heating to maintain the temperature of the optical elements at 40°C or 50°C. 

Windows®-based LOGGER software for data acquisition is included. 

The GTR-2511 radiometer is specifically designed to monitor UV radiation in key UV wavebands for biological exposure studies. These wavelengths allow the extraction of cloud optical thickness and total column ozone, two critical variables used in modeling the solar spectrum. The systems are designed to be easily deployed, either individually or in networks, to examine the geographic variability in UV exposure. Components include the GUv-2511, an AC-powered deckbox, 50-m cable (GSC-2511/50), and Windows®-based LOGGER software. 

Features

• Measurement: 7-channel surface UV and PAR cosine irradiance for low ambient temperature environments. 
• Spectral Response: Individual filter photodiode (10 nm FWHM) channels at 305, 313, 320,  340, 380, 395 nm, and 400-700 nm (PAR).  Other wavelengths available.
• Weatherized, sealed, and controlled internal temperature to 40 or 50ºC 
• Input Power: 85-264 VAC, 47-63 Hz-powered deckbox (not battery-powered) 
• Output Signal: Serial RS-232 (software supplied) 
• Subunits: GUV-2511, deckbox, 50 m of cable, and software

Options

• UV-552 Instrument Inclinometer for the GUV-2511
• UV-565 Travel Case: Fits a GUV system, deckbox, AC adapter charger and cable (up to 100 m); meets ATA requirements for checked baggage but may exceed 30 kg weight. 

Related Instruments:

• SUV-150 High-Resolution Scanning Spectroradiometer

Click here to download a copy of the GUV-2511 brochure