The Fluke 885AB DC Differential Voltmeter
achieved an absolute accuracy of 25 parts per million of input +1 ppm of range
+5 microvolts from 0 to 1100 VDC. The unit operates from either line or battery
power. Batteries are compact, rechargeable nickel-cadmium units which operate
the voltmeter more than 24 hours on full charge. In addition to true
portability, battery power offers complete line isolation for elimination of
ground loop errors.
