24" Horizontal Beam Optical Comparator
The NEW "2450" Series 24" Erect Image Horizontal Beam Optical Comparator features a more rugged structure, an 8" x 12" travel measuring stage and a 3-position lens turret. Over 55 years experience manufacturing optical comparators in the U.S., combined with its worldwide service organization makes S-T Optical Comparators your best buy.
J.A. King / J.A. King / NC Measurements and ST Comparators

Standard Features:
Nickel plated 5" X 24" top plate with 2 std. clamping slots, 8" (Y) x 12" (X), travel with a 200 lb. work load capacity, exclusive gothic arch bearing ways, .00005"/.001mm Acu-Rite glass scales, motorized stepper motor drive on X and Y axis with variable speed joystick controller with X and Y axis fine adjust jog wheels. True +/- 15° helix adjustment on stage in 5 min. increments. Swing away lamphouse allows you to inspect extra long parts. Rotating glass screen with chart clips and digital readout protractor and duplex high intensity surface illumination.

Digital Readouts:

Quadra-Chek 221 and 221E
These powerful digital readouts provide fast geometric computations in a simple, easy to use format. Functions include point, line, circle, distance, angle, skew alignment and Measure Magic. Other features include Inch/MM, Cartesian/Polar, nearest/farthest distance, complimentary angles, serial and parallel ports and 200-feature memory. Large, high contrast LCD screen graphically displays measurement features and construction. Housing tilts backward or forward for best angle of operation. Model 221E includes fiber optic edge sensor.
Standard Digital Readout
The Standard digital readout features absolute/incremental, IN/MM conversion, random zeroing, RS232C output, linear error compensation and Q axis for digital screen protractor.
Quadra-Chek 4215
Quadra-Chek 4215 PC computer based geometric readout system, mouse driven, with on screen graphic representation of part or part segment as it is measured. Simple CAD interface simplifies constructions and part programming. Unlimited part and feature memory. Includes computer with Microsoft® Windows®, fiber optic edge sensor and all functions found in the Quadra-Chek 200.

Specifications:
Work Table: 5" x 24" (125 x 600 mm)
Measuring Range:8" x 12" (200 x 300 mm)
Allowable Work Load on Stage:200 lbs. (90 kg)
Illumination: Profile - 150w, Surface - 150w x 2
Focus Travel:3" (75 mm)
Screen Size: 24" (600 mm)
Floor Space:31" x 64" (785 x 1625 mm)
Electrical: 100-240v, 50/60hz
Weight:1000 lbs. (455 kg) - Crated 1200 lbs. (545 kg)