The V-770 UV-Visible-Near Infrared Spectrophotometer is a unique optical design with a single monochromator and dual grating (one for UV-visible and a second for the NIR). Dual detectors are used cover the wavelength range from 190 to 2700nm (3200nm option).
The V-770 UV-Visible/Near Infrared spectrophotometer features a unique single monochromator design with automatically exchanged gratings: 1200 lines/mm for the UV-Visible region and 300 lines/mm for the NIR region. A PMT detector is used for the UV-visible region and a Peltier-cooled PbS detector for the NIR region. Both gratings and detectors can be automatically changed within a user selectable range of 800-900nm .