VSI Electronics - Model VSI-401 -Microprocessor Auto Colorimeter

Microprocessor Auto Colorimeter (VSI-401) is a compact and easy to operate instrument for Photo Colorimeter analysis of any concentration. The output is available on 16x2 lines alpha numeric LCD display in terms of % Transmission (%T) & Absorbance (Abs.). The use of micro-controller has made it extremely versatile and state of the art instrument. The instrument operates at wavelength between 400 to 700 nm range. The use of high standard wide range glass filters covering 400 to 700 nm in the monochromator gives extremely good results. The filter setting is controlled by a rotating disc having 8 filters. An automatic shutter is provided to stop the light reaching the sensor, when test tube is not inserted in the tube holder. This increases the life of sensor tremendously.