The ME432 series meter is intelligent three phase ampere meter, voltmeter and power meter. They provide the measurement of I, U, rms, active, reactive and apparent powers, power factor, total (fundamental and harmonic) active and apparent energy, THD, and harmonic distortion of all harmonics within 2.8 kHz (56harmonics) pass band on all phases. DSP and 24bits ADC are stored inside. They can work as local display or compose measuring and control system when connected with VMIC. This series are equipped with RS-485 communication interface compatible protocols with Moudbus-RTU protocols.