DW-L8/L9 Double Beam UV-VIS Spectrophotometer

The DW-L8/L9 double beam UV-Vis spectrophotometer applies a new optical bench, with 5-speed adjustable bandwidth, ARM chip control, and data processing, an 8-inch color touch-screen that displays a menu, and spectral curve, and can analyze spectrum test data. It’s quite easy for user and computer interaction. The instrument can perform the 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.

Features of DW-L8/L9 Double Beam UV-VIS Spectrophotometer

  • New optical platform, enabling the host machine with excellent optical properties, metering performance, low stray light and noise, high metering accuracy, and stability.
  • The unique system of deuterium and tungsten lamp installation, facilitates the light source to automatically switch to the best position and allows 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 the following functions, including automatic scanning of the 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.

Specifications of DW-L8/L9 Double Beam UV-VIS Spectrophotometer

Model DW-L8 DW-L9
Photometry Double Beam
Monochromator Type Czerny-Turner
Focal Length 200mm
Grating 1600 lines/mm
Detector Silicon Photocell
Spectrum Bandwidth 2nm 0.5nm,1nm,2nm,4nm,5nm
Wavelength Setting 8-inch color touch-screen
Wavelength Range 190-1100nm
Wavelength Accuracy ±0.3nm(actual test ±0.2nm )
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
0.301-4.000 A
0.000-9999 C
Photometric Accuracy ±0.3% T
±0.002 Abs (0-0.A)
±0.004 Abs (0.5-A)
Photometric Repeatability ≤0.15% T
0.001 Abs (0-0.5A)
0.002 Abs (0.5-1A)
Noise 100% (T) noise≤0.1%(T), 0% (T) noise≤0.02%(T)
Power AC220V±22V 50Hz±1Hz, 200W
Packaging Size 730mm X 630mm X 450mm 0.21M3 42.5kg

Standard Accessories of DW-L8/L9 Double Beam UV-VIS Spectrophotometer

  • Operation manual 1pc
  • Glass cuvette 10mm 4pcs
  • Quartz cuvette 10mm 2pcs
  • Power cable 1pc
  • Fuse 2pcs
  • Cuvette holder 10mm

Optional Accessories of DW-L8/L9 Double Beam UV-VIS Spectrophotometer

  • UV WIN8 station pro software
  • Cuvette holder 50mm 100mm
  • Cuvette 20mm 30mm 50mm 100mm