Optical comparators are designed to work in a normal workshop environment but it is important to locate the unit as far as possible from sources of grinding grit, oil mist, and vibrations. Where possible the projector should be located with the screen facing away from direct sunlight and overhead lighting.
Bench-top optical comparators should be placed on a strong sturdy bench capable of securely supporting a minimum of 550lbs/250Kg with a point pressure capability minimum of 165psi. Dorsey Metrology optionally supplies a cabinet/stand designed for this application. Canopy and curtains are not provided as standard, but are available as an optional extra fitted at the factory on the projector stand. These items are strongly recommended when using lenses of high magnification or with surface projection of difficult components.
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