# Auto switching available to choose from voltage measuring range and current measuring range, and all the energy constants of the measuring range can remains;
# Available to display the measurement data and waveform of three voltage and three current; and able to analyse harmonic within 21 orders.
# Able to identify these frequently faced wrong connections as 3-phase & 3wire (48 types), and 3-phase & 4 wire(96 types), and display hexagon diagram of optional connection;
# Error correction function is provided to help user do error calibration, parameter measurement data will make correction;
# Built-in industrial computer is adopted to control the device plus with the ports convenient for function extension, user-friendly interface style and rich content ;
# Colorful LCD: 6.4 inch, resolution 640X480;
# Auto/Manual calibration for energy meter based on single phase, 3-phase & 3wire, 3-phase & 4-wire active, 3-phase & 4-wire reactive inductive and 3-phase & 4-wire activeelectronic (able to receive the pulse of electronic energy meter); utilizing antitheses method to calibrate voltage, current, power, power factor, phase and frequency for electrotechnical instruments and transducers;
# Able to create a new file or open the existed on-site library file, and delete or inquire the record of library files;
# Data tranmission by U disk; Convenient software updating through LAN or U disk;
