Review Article

Variable Speed Drive Characterization: Review of Measurement Techniques and Future Trends

Table 6

True RMS ammeter accuracy (% read + % range) specifications.

InstrumentDigitRangeBandAccuracy

Agilent 3458A8.5100  A–1 A10 Hz–100 kHz0.08 + 0.02
Keithley 20028.5200  A–2 A20 Hz–100 kHz0.2 + 0.015
Fluke 12818.5100 mA–2 A10 Hz–5 kHz0.1 + 0.03
Prema 50177.5200  A–2 A20 Hz–5 kHz0.2 b + 0.01