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Varian ProStar 325 UV-VIS Detector**This instrument was tested for basic power function. See photos for further details.The VarianProStar 325 UV/VIS Detector with dual wavelength and extended range capabilities is a state of the art detector that can be used for analytical and preparative applications The innovative design combines the best features of an analytical and prep HPLC detector in a single unit. The ProStar 325 UV-VIS Detector offers outstanding performance with its dual wavelength and wavelength ratio capabilities without compromise.Optical DesignThe basic optical design involves passing the light from the UV and/or Visible lamps through the flow cell before it goes into the dispersion element. This design is called a reverse optics design. The UV lamp is a prealigned high intensity Hamamatsu Deuterium lamp which has a maximum UV output in the 240 to 260 nm range and a 2000 hour lamp life. This provides the lowest noise in that region of the spectrum. The lamp is cooled by a fan at the rear of the module which intakes air from the rear of the unit and blows the air over the lamp housing to keep within 8 to 10c of the ambient temperature.Additional Prep Fees May Apply