Product description Portable Three-phase Standard Meter is a portable reference standard meter used to test three phase meters and single phase meters, it designed to work both in the eld and in the laboratory. Technical index Portable Three-phase Standard Meter Electrical parameters Accuracy class 0.05% Voltage supply Range 5V-480V Error Display range 5.000000V-480.0000V Harmonic 2nd-63st Range 1mA-120A Error Display range 1.000000mA-120.0000A Active power
