Differential Voltmeters, John Fluke 801, 8011A, 801R, 801B, 801B/Ag, 801BR, 801BR/Ag, 801H, 801H/G, 803, 803R, 803B, 803B/AF, 803/Ag, 803BR and 803BR/Ag

摘要

The procedure describes the calibration of the John Fluke 801, 8011A, 801R, 801B, 801B/AG, 801BR, 801BR/AG, 801H, and 801H/G DC differential voltmeters, and the 803, 803B, 803R, 803BR, 803B/AF, 803B/AG, and 803BR/AG DC-AC differential voltmeters. The Test Instrument operates on the basic principle of comparing an unknown voltage with a precisely known voltage, and any difference between the two is indicated on a sensitive null detector. (Author)