The Benchmark 14H is an Erect Image benchtop comparator and is another example of our expanding range of products. This new comparator has the same high quality features as the current product line, with an erect projection image and our "ultra-precision" crossed roller bearing stage system, but in a smaller package. The measurement scales have zero backlash and are mounted in the center of the stage travel which provides maximum measurement accuracy. The optional extra long-life LED surface illumination is another Dorsey innovation.
Display Features Features: Erect and reversed profile image 14" (350mm) vertical screen for optimum viewing, high resolution ground glass screen with 90 degree cross lines, with calibration reticle and chart clips Machined chart ring with vernier protractor, 1 minute graduation facilitates optimal alignment Coated telecentric parfocal optics Quick change single lens mount Integrated hood Solid cast iron, nickel plated stage X&Y solid rail crossed roller bearings Single universal dovetail stage 16" x 4" (400x100mm) overall stage size 8" / (200mm) X-axis travel with quick release 4" / (100mm) Y-axis travel (vertical movement/rise and fall) 50 lbs capacity ± 5 degree light source helix adjustment LED surface illumination 1/4 micron scales are standard equipment NIST traceable calibration certificate 2 year limited warranty Optional Features: Internal edge detection Choice of readout options Output for electronic rotary screen protractor (Q-axis) on readout with selectable 1 minute or 1/100 of a degree resolution Harsh Environment package Additional lens magnifications available Tooling Specs
Profile Illumination Built-in 24V/150W direct collimated halogen Surface Illumination 2-Triple LED lights Screen Size 14” (350mm) Ground glass with cross-lines Stage Specs Cast iron, nickel plated, 16” x 4” single dovetail Stage Travel X 8” (200mm) Stage Travel Y 4” (100mm) Stage Focus 1.5" (38mm) Stage Accuracy Within +/- 0.004mm +[(L/20).001] Scale Resolution 0.00025mm/.000010” Repeatability of Scales +/- 1 Scale count (0.00025mm/.000010”) Lens Magnification 10x, 20x, 50x, 100x Profile Accuracy +/- .10% Surface Accuracy +/- .15% Power Requirements 120V or 240V AC, 50/60 Hz, 10 Amp Weight 250 lbs/113 kg Warranty 2 years NIST Cert Yes Options
Part Number LENS-14-10X Lens Magnification 10X Max Part Diameter 162mm Focal Distance 81mm Lens Face Diameter 54mm
Part Number LENS-14-20X Lens Magnification 20X Max Part Diameter 162mm Focal Distance 81mm Lens Face Diameter 47mm
Part Number LENS-14-50X Lens Magnification 50X Max Part Diameter 102mm Focal Distance 51mm Lens Face Diameter 28mm
Part Number LENS-14-100X Lens Magnification 100X Max Part Diameter 86mm Focal Distance 43mm Lens Face Diameter 27mm Part Number: Manufacturer: