Photovolt Instruments Inc.

Technical Note 577 Measurements For Brightness Of Paper

PHOTOVOLT TECHNICAL NOTE 577 Measurements For Brightness Of Paper 1. Use a PHOTOVOLT 577 in the HI gain position with the W Search unit and allow to stabilize for about 30 minutes before use. 2. Press the B (Blue) channel on the 577. 3. Zero the 577 by placing the BLACK CAVITY STANDARD over the light opening and centered so that no room light ...