Description
Dorsey Metrology International
16H Horizontal Beam Optical Comparator
This extremely versatile measurement instrument features a robust cast granite composite base and our proven cast iron “ultra precision” stage system.
This comparator comes standard with integrated fiber optic surface illumination.
Measurement scales are mounted in the center of travel with zero backlash.
A variety of readout options combine to make this one of the most accurate and versatile horizontal benchtop comparators.
FEATURES:
16″ (400mm) Vertical screen for optimum viewing
Erect and reversed profile image
High resolution ground glass screen with calibration reticle, 90 degree cross lines, and chart clips
Machined chart ring with vernier protractor, 1 minute graduation
Coated telecentric parfocal optics
Quick change single lens mount
Fiber optic surface illumination
Integrated hood
Solid cast iron, nickel plated stage
3-axis solid rail crossed roller bearings
Twin universal dovetails
18″ x 5″ (457mmx127mm) overall size
10″ (250mm) X-axis travel with quick release
6″ (150mm) Y-axis travel (vertical movement/rise & fall)
150 lbs capacity
±15 degree true parfocal helix stage adjustment with 5 minute vernier
NIST traceable calibration certificate
1/4 micron scales are standard equipment
2 Year limited warranty
Technical Specification
Illumination
Profile: Built-in 24V/150W direct collimated halogen
Surface: Built-in 24V/250W via fiber optics
Screen Size 16” (400mm) Ground glass with cross-lines
Stage Cast iron, nickel plated, 18” x 5”, twin dovetail
Stage Travel
X = 10” (250mm)
Y = 6” (150mm)
Focus = 2” (50mm)
Stage Options Optional increase of stage travel 24” (600mm) on X axis
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 5x, 10x, 20x, 25x, 31.25x, 50x, 62.5x, 100x
Optical Accuracy Within +/- .10% Profile, +/- .15% Surface
Power Requirements 120V or 240V AC, 50/60 Hz, 10 Amp
Weight 460 lbs/209 kg
OPTIONAL FEATURES:
Internal edge detection
Swing away lamp house arm
24″ (610mm) extended stage travel on X-axis (50 lbs capacity), 5″ (127mm) Y-axis travel (vertical movement Rise & Fall)
Choice of readout options, see pages 11-13
Motorized and CNC computer controlled systems, 50 lbs capacity
Output for electronic rotary screen protractor (Q-axis) with selectable 1 minute or 1/100 of a degree resolution
Through-lens surface illumination
Harsh Environment package
Additional lens magnifications available
Tooling
