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darklight duo

Routine Test Sensitometer and Densitometer

The darklight duo devices fulfil all requirements of the IEC 61223-2-1 and DIN 6868-2 standards for daily constancy or routine tests.

The combination of both sensitometer and densitometer into one device provides ease of use, lower acquisition cost and handling advantages.

Technical specifications

  • Exposure colour: Selectable blue or green
  • Peak Wavelength: Blue (460 ± 10) nm; Green (510 ± 10) nm
  • Exposure H[lx.s]: 5 steps selectable for each exposure color
  • Exposure Homogeneity: ± 0.01 log (H) for each step
  • Step Wedge: 21 steps
  • Reference Sensitometer: According to DlNV6868-55
  • Spectral Characteristics: ANSIPH 2.19-1979 (DIN 4512-3) for light source
  • Sensor Optics Size: 3 mm diameter
  • Measuring Range: D = 0 – 4.5
  • Measuring Accuracy: ± 2.0% for D~ 3; ± (1.5 – 2)% for D>3
  • Accuracy: D = ±0.0l