Laboratory densitometer darklight duo

Short description
The darklight duo is a combined routine sensitometer and densitometer designed for daily constancy tests, integrating both functions in a single portable unit for simplified handling and reduced acquisition cost.

Overview
The darklight duo complies with IEC 61223-2-1 and DIN 6868-2 requirements for routine testing. It offers selectable exposure colours, precise step homogeneity and an integrated measuring sensor suitable for film and imaging QA processes. The combined design streamlines daily checks and record keeping in radiography and film-processing environments.

Specifications / Technical data

• 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 colour
• Exposure homogeneity: ± 0.01 log (H) for each step
• Step wedge: 21 steps
• Reference sensitometer: according to DIN V 6868-55
• Spectral characteristics: ANSI/PH2.19-1979 (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
• Density accuracy: D = ±0.01