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Spectrophotometer T7D

T7D UV-Vis instrument offering a fixed bandwidth of 2nm.
T7DS UV-Vis instrument offering a variable bandwidth of 0.5, 1, 2 or 5nm.

  • High performance fixed (2nm) or variable (0.5, 1, 2, 5nm) spectral bandwidth.
  • Wavelength accuracy ±0.3nm. 
  • Supplied with a motorised 8 cell changer and pre-aligned Tungsten and Deuterium lamps.
  • A number of optional accessories available which increase the flexibility of the analysis.
  • High degree of automation requiring minimal key depressions to start analysis
  • Simple mechanical structure and modular electronics design make the routine maintenance easy.
  • Model Name

    T7D (T80)

    T7SD (T80+)

    Optical system

    Double beam

    Scan speed

    Over 1000nm/min

    Wavelength range


    Wavelength accuracy

    ±0.3nm (Automatic wavelength correction)

    Wavelength reproducibility


    Spectral bandwidth

    2nm(fixed slit) 0.5, 1, 2, 5nm(variable slit)

    Photometric mode

    Transmittance, Absorbance, Energy

    Photometric range


    Photometric accuracy

    ±0.002A(0~0.5A), ±0.004A(0.5~1A), ±0.3%T(0~100%T)

    Photometric reproducibility

    ±0.001A(0~0.5A), ±0.002A(0.5~1A), ±0.15%T(0~100%T)

    Photometric noise

    ±0.001A(500nm, 0Abs, 2nm Spectral Bandwidth)

    Baseline flatness


    Baseline stability

    0.0008A/h(500nm, 0Abs, 2nm Spectral Bandwidth, 2hr warm-up)

    Stray light

    <0.12%T (220nm Nal, 340nm NaNO2)

    Standard Functionality

    Photometric, Quantitative, Spectrum measurements


    Silicon photo diode

    Light source

    Tungsten Halogen and Deuterium arc lamps


    Digital LCD display

    PC Interface


    Software support

    Local and UV-Win


    520W×420D×230H · 25㎏