DC Microvolt-Ammeter 203A, 203AR OR 203A/ER 3431 (Kin Tel)

摘要

The procedure describes the calibration of the Kin Tel 203A, 203 AR, or 203A/ER 3431 DC Microvoltammeter which measures full-scale direct voltages from 100 microvolts to 1000 volts, and full-scale direct currents from 1 millimicron ampere to 1 ampere. The Test Instrument consists of an input voltage divider, a chopper amplifier, an amplifier, and a meter.