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Reflection Densitometer
Affordably priced and technologically advanced
The BETALOG PLATEMASTER DP is a unique black and white
reflection densitometer with some very special features. Measure dot area and density of any lithographic plate regardless of color, contrast, or graining. An absolute necessity in
calibrating any computer to plate system. Perfect for photos,
proofs, and press sheets too.
This unique ability allows you to verify tints and halftones
on plate before going to press, saving time and money. Isolate and correct platemaking dot gain from press dot gain.
Portable, battery-powered, and easy to use; the perfect tool
for prep room, plate room, and pressroom. Measure stochastic and conventional halftones on diazo, photopolymer, waterless, and direct-image silver plates with ease and accuracy.
High accuracy is achieved with all types of plates regardless
of image or background color. Plates with highly visible images as well as those with a barely visible image can be read to an accuracy of one percent dot value.
The unique optical system utilizes a 90 degree vertical
illumination source and a 360 degree annular ring pick up. Errors due to plate graining and directional coating effects are eliminated.
Functions:
- Dot Area Percentage (positive)
Measure dot area on paper and plates
- Dot Area Percentage (negative)
Measure dot area on reverse image plates
- Dot Size (positive)
Measure dot area using the
Yule/Nielsen "n" factor
- Dot Size (negative)
Measure negative dot area with "n" factor
- Reflection Density (relative)
Measure image density relative to background
- Reflection Density (absolute)
Measure image or
background vs. absolute zero
Electronic output
The Betalog Platemaster DP is
supplied with a serial interface. Optional data cables with DB-9 or mini-DIN8 connectors are available for use with an optional printer or for direct connection to a computer for data
collection and analysis.
Specifications:
Density: 0.00 - 2.50
Percent: 0 - 100%
Negative Percent: 100 - 0%
Linearity, Repeatability, Accuracy: +/- 0.005D, +/- 0.5%
Digital Display: LCD, digit height 10 diameter
Power supply: 4 x 1.5 V AA alkaline batteries mm
Aperture: 4.5 mm
Measurements per battery set: >100,000
Weight: 12.9 oz. (350 g)
Dimensions: 5.7"x 3.28" x1.6" (144 x 83 x 41 mm)
Data Output: RS232 Serial Interface, 1200, 8, 1, N
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