Visible Spectrophotometer – 3305


  • Large Sample Room to Place 50mm Cuvette
  • Digital Display the Measuring Value
  • Auto Light Door and Zero Setting
  • The Instrument Adopts Imported tungsten Lamp

Spectrophotometer (VISIBLE), is a solid state microcontroller based instrument designed for quick and accurate spectrophotometric analysis of any concentration. It operates at a wavelength range of 340 nm to 1020 nm. The output is available on a 4 Digit seven segment bright red LED display in terms of %Transmission (%T), Absorbance (Abs.), Concentration (Conc.) and Kfactor. The instrument uses the latest microprocessor technology and advanced engineering techniques so as to give enhanced accuracy and reproducibility.

This is the most economical, reliable, rugged and accurate instrument. The system has 4 soft touch membrane type keys for ease of operation. It has a ‘Mode’ key for easy switching of various operating modes. Facility for automatic setting of zero / blank is provided.

System has a 4-Position rapid cuvette changer (Test Tube Holder) selector.


Model 3305
Optical System Czerny-turner CT grating monochromator, 1200/mm
Wavelength Range 340-1020 nm
Spectral Bandwidth 6 nm
Wavelength Accuracy ± 3 nm
Wavelength Repeatability <1 nm
Measurement Range 0-199.0%T, 0-1.999A, 0-1999C
Photometric Accuracy 0.5%T
Photometric Repeatability ± 0.3%T @220nm
Measuring Optical Path 100 mm
Stray Light ± 1.0%T (340 nm)
Stability ± 0.004 A/h(500 nm preheat 1 hour)
Display Modes 4 LCD
Basic Measurement T, A, C
Light Source 6V10W
Operating Voltage 220V/110VAC,50-60Hz

Note : Specifications are subject to change due to continuous improvements.