Bellstone Microprocessor Spectrophotometer


Special Feature

  • Highly Accurate and Stable
  • Range 340 to 960 nm
  • 16 x 2 Line Backlit Alphanumeric LCD Display
  • Printer Attachment Facility
  • Storage for 100 Samples
  • Soft Touch Membrane Keys
  • RS 232 Computer Interface

Bellstone MICROPROCESSOR SPECTROPHOTOMETER, BHI-LSR-421 is a compact and easy to operate instrument for spectrophotometric analysis of a solution of any concentration. The output is available on 16x2 line LCD display in terms of % age Transmission (%T), Absorbance (Abs) Concentration (Conc) & K-Factor. This instrument has 100 sample storage memory, printer output for printing of data on any dot matrix printer with centronics interface. RS-232C Interface for computer can be provided on request. The use of Microcontroller has made it extremely versatile and state-of-the instrument 10mm path length test tubes and cuvettes facility is provided.

The instrument operates wave length range between 340 to 960 nm. The use of diffraction grating of 600 lines/mm in the monochromator produces a linear spectrum. An automatic shutter is provided to stop the light reaching the photodiode, when test tube is not inserted in the holder. This is extremely useful instrument for quantitative analysis. This instrument is useful is chemistry labs, mineral water testing labs, pharmaceutical labs, universities, hospitals, research centers, biotechnology labs, drugs & agricultural labs etc.

Wavelength Range 340 to 960 nm
Wavelength Resolution 1 nm
Wavelength Accuracy ± 1 nm
Spectral Slit Width < 5 nm
% Transmission 0.0 - 100% T
Absorbance 0 - 1.999A
Concentration 0 to 19999
K-Factor 0.1 to 19999
Resolution 0.1% T, 0.001Abs
Stray Radiant Energy ± 2% or lesser at 340 nm and 400 nm
Photometric Accuracy Less than 0.01 Abs.
Monochromator 600 lines/mm diffraction grating
Photo Detector wide range silicon photodiode
Display 16x2 line alphanumeric backlet LCD display
Key Board 8 keys soft touch membrane type
Data Storage Up to 100 cuvettes
Light Source Tungsten - halogen lamp 6V, 10W
Sample Holder 10 mm glass cuvettes
Printer Interface Centronics Printer interface for any dot matrix printer
Computer Interface R232C Serial Interface (on request)
Power Supply 230V ± 10% 50 Hz AC
Dimension L490 x B300 x H165mm
Weight 8 Kg (Approx.)
Accessories Supplied Matched Cuvetts    : A set of 2
Dust Cover             : 1 No.
Operation Manual   : 1 No.