577-A Reflectance Colorimeter

577-A Reflectance Colorimeter

Part #: 0257720


Photovolt’s American-made 577A and 577-AS and are designed to simplify the determination of appearance characteristics. This rugged portable instrument is easy to operate, sets up in just minutes & has unparalleled flexibility. The unit can be used with a Y or D search unit and of the 3 Tristimulus FIlters (Amber, Green and Blue) for color, reflectance and opacity or with the W Search unit (Blue) for paper brightness. Calibration of the unit is performed with a traceable reflectance standard. One can read percent reflectance directly from a sample by using any one of Photovolt’s standard “search (optical) unit” packages. With the Model 577A it becomes easy to measure color, opacity, hiding power, brightness and tristimulus reflectances. With the touch of a button, the Model 577A will automatically reconfigure itself for changes in the Tristimulus Filters. The Model 577-A has applications that conform to ASTM, TAPPI, & ISO standards.

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