14H Optical Comparator

The Benchmark 14H stands as an Erect Image benchtop comparator, further broadening our diverse product portfolio. This novel comparator maintains the high-quality attributes consistent with our existing product range, featuring an erect projection image and our “ultra-precision” crossed roller bearing stage system, all within a more compact design. The measurement scales are meticulously designed to eliminate backlash and are centrally positioned in the stage travel, ensuring optimal measurement precision. Additionally, we offer an optional LED surface illumination with an extended lifespan, showcasing yet another innovative solution from Dorsey.

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Features

  • The Benchmark 14H boasts a variety of features designed for optimum performance and user convenience. It provides both erect and reversed profile images, ensuring versatility in image projection. The comparator is equipped with a 14″ (350mm) vertical screen, offering an optimal viewing experience. This high-resolution ground glass screen features 90-degree cross lines, a calibration reticle, and chart clips for enhanced precision and ease of use. The machined chart ring, complete with a vernier protractor and 1-minute graduation, facilitates optimal alignment during measurements.
  • In terms of optics, the 14H includes coated telecentric parfocal optics, ensuring clear and consistent imaging. The quick change single lens mount adds to the convenience, allowing for easy adjustments as needed. An integrated hood is included to reduce glare and enhance the viewing experience.
  • The stage of the 14H is constructed from solid cast iron and is nickel-plated for durability and longevity. It operates on X&Y solid rail crossed roller bearings, ensuring smooth and precise movement. The stage itself is a single universal dovetail stage, measuring 16″ x 4″ (400x100mm) overall. It offers an 8″ (200mm) X-axis travel with a quick release feature, and a 4″ (100mm) Y-axis travel, allowing for vertical movement or rise and fall. Despite its robust construction, the stage can accommodate up to 50 lbs of capacity.
  • Additional features of the 14H include a ± 5-degree light source helix adjustment for optimal lighting conditions, LED surface illumination for clear visibility, and 1/4 micron scales as standard equipment to ensure precise measurements. The 14H comes with NIST traceable calibration, ensuring that it meets national standards and provides reliable and accurate results. Additionally, the product comes with a 2-year limited warranty, ensuring peace of mind and reliable performance.

Overview

14H Optical Comparator

The Benchmark 14H stands as an Erect Image benchtop comparator, further broadening our diverse product portfolio. This novel comparator maintains the high-quality attributes consistent with our existing product range, featuring an erect projection image and our “ultra-precision” crossed roller bearing stage system, all within a more compact design. The measurement scales are meticulously designed to eliminate backlash and are centrally positioned in the stage travel, ensuring optimal measurement precision. Additionally, we offer an optional LED surface illumination with an extended lifespan, showcasing yet another innovative solution from Dorsey.

Illumination

Profile: Built-in 24V/150W direct collimated halogen Surface: 2-Triple LED lights

Screen Size

14” (350mm) Ground glass with cross-lines

Stage

Cast iron, nickel plated, 16” x 4” single dovetail

Stage Travel

X = 8” (200mm)

Y = 4” (100mm)

Focus = 1.5″ (38mm)

Stage Accuracy

Within +/- 0.004mm +[(L/20).001]

Linear Scale Resolution

Standard: 0.00025mm/.000010”

Repeatability of Scales

+/- 1 Scale count (0.00025mm/.000010”)

Coated Telecentric Lenses

10x, 20x, 50x, 100x

Optical Accuracy

Within +/- .10% Profile, +/- .15% Surface

Power Requirements

120V or 240V AC, 50/60 Hz, 10 Amp

Weight

250 lbs/113 kg

Resources

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