The V-650 is a double-beam spectrophotometer with a photomultiplier tube detector. The high sensitivity of the photomultiplier tube detector enables accurate measurements of low concentration samples. By controlling the high voltage applied to the PM tube, the dynode feedback circuit allows a wider dynamic range. It also enables the use of such solid sample handling accessories as integrating spheres to collect diffuse light transmitted or reflected by the sample. The advanced optical design results in high optical throughput and allows the bandwidth to be set as low as 0.1 nm for high resolution work such as gas and vapor phase spectroscopy. Low stray light slit settings provide excellent linearity of up to 4 absorbance units. Two graphical user interfaces are available including a newly redesigned intelligent remote module (iRM) with a color LCD touch screen and Spectra Manager™ II software, the latest version of JASCO's innovative cross-platform spectroscopy software. Both of these interfaces allow full system control and advanced data processing. Spectra Manager CFR is a 21 CFR part 11 compliant version of software and is available as an option.

• IQ Accessory and IQ Start
  User-friendly features include the IQ Accessory function for automatic accessory recognition and IQ Start for immediate start of registered control programs when conducting routine measurements.
  
  
• Excellent Optical Performance
  Recent advances in optical technology have been utilized to provide excellent
  reliability and assure highly accurate results. High throughput optics combined with a modern electronic design provide excellent sensitivity and stability.
  
  
• Full Line of Accessories
  A full complement of accessories is available to optimize the V-650 for particular applications. Options include a wide variety of liquid cell holders, micro cell holders, flow cell units and accessories for solid samples. Advanced accessories such as automated cell changers, sippers and programmable temperature control systems allow full control by the iRM or Spectra Manager II.