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07-424 Digital Densitometer

 07-424 Digital Densitometer

07-424 Digital Densitometer

The Digital Densitometer is an easy to use precision instrument that quickly measures the optical density of film.

Constructed of rugged steel and compact enough to fit on any crowded worktable, the 07-424 Digital Densitometer offers exceptional accuracy (± 0.02 optical density). The optical density value is displayed in bright LED numerals on the detector arm. The sample table is 6.125 inch x 10.50 inch with a 4.75 inch x 5.50 inch illuminated section. It will accommodate film up to 14 inch x 17 inch and provides ample room for positioning any selected area under the detector.

The detector is a hermetically-sealed silicon photodiode. The detector lamp is at full brilliancy only during the actual measurement, thus preventing heating problems and ensuring very long lamp life with minimum wavelength shift or other degradation. When necessary, the lamps are easily replaced. The densitometer includes a five-step optical density tablet.

Key Features
  • Large illuminated surface
  • Density range is 0.00 D to 4.5 D
  • Three apertures: 1 mm, 2 mm, and 3 mm
  • Includes a five-step optical density tablet
Product Specifications
Density range
 0.00 D to 4.5 D
 ± 0.02 density. Reference tablet supplied
Response time
 Two seconds at 3.00 density
Zero drift
Apertures supplied
 1 mm, 2 mm, and 3 mm D.; Anodized aluminum
 21 cm length (8.2 in). Easily measures to center of 35.6 cm x 43 cm (14 in x 17 in) film
Illuminated table
 12 cm x 14 cm (4.75 in x 5.5 in)
Diameter of aperture holder
 (area obscured) 0.730 in
Spectral response
 5000 to 5500 Å peak of bell-shaped curve
Detector illumination
 Incandescent lamp with spectral compensation filter. Lamp is at full brilliancy only during measurement
Table illumination
 Four #37, low-voltage, wedge-base lamps
Digital readout
 Three 0.4 inch high light-emitting diode (LED) numerals on detector arm
 Hermetically-sealed, silicon photodiode
Zero control
 Allows wide range adjustment for different apertures and density subtraction
 110/220 V, 50/60 Hz
Dimensions (WxDxH)
 16 cm x 34 cm x 12.5 cm (6.2 in x 13.4 in x 4.9 in)
 3.2 kg (7 lb)

*This densitometer is not suitable for use with films generated by laser printers

Miscellaneous Accessories
07-41307-413 Apertures, set of three (part#07-413)
010037Step Tablet (part# 010037)

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