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METICULAB

L7 Series Double Beam UV-VIS Spectrophotometer

L7 Series Double Beam UV-VIS Spectrophotometer

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The L7 series is a high-performance double beam UV-VIS spectrophotometer designed for laboratories requiring precision and reliability. Featuring an 8-inch color touch screen, Czerny-Turner monochromator, and blazed holographic gratings, it delivers outstanding accuracy for both qualitative and quantitative analysis.

Key Features

Advanced Optical System

  • Double beam optical design with Czerny-Turner monochromator
  • 1200 lines/mm blazed holographic grating for high resolution
  • 1.8nm spectrum bandwidth
  • Silicon photocell detector for stable performance
  • Wavelength range: 190–1100nm (full spectrum coverage)

Intuitive Touch Screen Interface

  • 8-inch color capacitive touch screen
  • User-friendly interface with powerful functions
  • Multi-language support for global users

Versatile Analysis Functions

  • Full-spectrum scanning
  • Detailed spectrum scanning
  • Time-based kinetics determination
  • GOTO λ (wavelength setting)
  • Linear regression and concentration direct reading
  • Peak/Valley detection
  • Multi-wavelength measurement

Data Management & Connectivity

  • High capacity internal memory – stores test results, scanned images, regression equations, and correction data
  • Fast initialization with power protection system
  • USB COM port for direct PC connection
  • Optional UV WIN8 spectrum data processing software
  • Optional thermal plotter for printing results and curves

Reliable Performance

  • Wavelength accuracy: ±0.5nm
  • Wavelength repeatability: ≤0.2nm
  • Stray light: ≤0.03%T (at 220nm NaI, 360nm NaNO₂)
  • Photometric range: 0.0–200.0%T, -0.301–4.000A, 0–9999C
  • Baseline stability: ≤±0.002A (200–1090nm)
  • Drift: ≤0.0009 Abs/30min (after 2h warm-up)

Standard Accessories

  • Operation manual
  • Glass cuvette 1cm (4 pcs)
  • Quartz cuvette 1cm (2 pcs)
  • Power cable
  • Fuse (2 pcs)

Optional Accessories

  • UV WIN8 spectrum data processing software
  • Thermal plotter/printer

Typical Applications

  • Research laboratories
  • Quality control and analytical testing
  • Pharmaceutical and biomedical analysis
  • Environmental monitoring
  • Food and beverage testing
  • Chemical and material science
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