GF333B is a portable reference standard meter used to test three phase meters and single phase meters, it designed to work both in the field and in the laboratory.
Features
- High accuracy up to 0.05%
- Wide testing range: voltage 5V-480V, current 1mA-120A
- Testing type: 3 phase 4 wire, 3 phase 3 wire
- Testing mode: active power, reactive power, apparent power
- Harmonic analysis function
- Waveform display function
- Vector diagram function
- Energy accumulating function
- Internal pulse input port, testing meter’s error directly