L9/L8 Double Beam UV-VIS Spectrophotometer

The L9 \ L8 double beam UV-Vis spectrophotometer applies a new optical bench, with 5-speed adjustable bandwidth(L9 only), ARM chip control and data processing, 8- inch color touch-screen which displays menu and spectral curve and can analyze spectrum test data. It’s quite easy for user and computer interaction. The instrument can perform following operations, including photometry, automatic scanning spectral measurement, quantitative analysis, dynamic analysis, and multi-wavelength measurement.

The instrument serves as the basic equipment for quality control, technical evaluation and scientific research, and can be widely used in susceptibility testing, medicine and health, biochemistry, environmental monitoring, commodity inspection, petrochemical and other fields.

Main Features

  • New optical platform, enabling the host machine with excellent optical properties, metering performance, low stray light and noise, high metering accuracy and stability.
  • Unique system of deuterium and tungsten lamp installation, facilitating the light source to automatically switch to the best position, and allowing users to operate the instrument, replace the light source and maintain the instrument more conveniently, accurately and safely.
  • Sophisticated hardware and software design, empowering the instrument with powerful spectral data processing and storage capabilities, and performing following functions, including automatic scanning of measured spectrum, multi-wavelength (1-3 λ) measurement, kinetic measurement, 1-3 curve fitting, 1-4 derivative spectra, spectra printing and storage and data analysis.
  • 8-inch color touch-screen, with a good user-machine interface, easy-to- operate.
  • USB communication port.


L9 L8
Photometry Double Beam
Monochromator Type Czerny-Turner
Focal Length 200mm
Grating 1600 lines/mm
Detector Silicon Photocell
Spectrum Bandwidth 0.5nm,1nm,2nm,4nm,5nm 2nm or 1nm
Wavelength Setting 8-inch color touch-screen
Wavelength Range 190-1100nm
Wavelength Accuracy ±0.3nm
Wavelength Repeatability ≤0.1nm
Scanning Speed Fast-Medium-Slow
Stray Light ≤0.02%T( at 220nm NaI, 360nm NaNo2 )
Photometric Range 0.0-200.0%T
Photometric Accuracy ±0.3%T
±0.002Abs (0-0.5A)
±0.004 Abs (0.5-1A)
Photometric Repeatability ≤0.15%T
0.001 Abs (0-0.5A)
0.002 Abs (0.5-1A)
Baseline ≤±0.0008 A(200-1090nm)
Noise 100%(T)noise≤0.1%(T) , 0%(T)noise≤0.02%(T)
Drifting ≤0.004 Abs/h (250nm and 500nm after 2h warm up)
Light Source Hamamatsu D2 lamp,Osram halogen tungsten lamp
Power AC220V±22V 50Hz±1Hz, 200W
Packaging Size 730mm X 630mm X 450mm 0.21M 3 42.5kg


Standard Accessories
Operation manual           1
Glass cuvette 1cm           4 pcs
Quartz cuvette 1cm         2pcs
Power cable                       1
Fuse                                    2pcs

Optional Accessories
UV WIN8 Spectrum data processing software
Thermal Plotter
Cuvette holder 50mm
Cuvette holder 100mm



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