Measurements
· True RMS metering
· Fully bi-directional, four-quadrant readings
· Volts, Amps, Power, PF, Frequency, Energy, Demand
  and more
· Direct measurement up to 600VAC
· Programmable PT & CT ratio
· Individual & total harmonic distortion for voltage and
  current up to the 31^st order
· Waveform capturing: 3 voltages and 3 currents for 128
  samples each.

On-Board Memory
· Min/avg/max logging every 1, 5, 10, 15, 30, 60 minutes,
  programmable, on eight selectable parameters.
· Daily energy consumption recording
· Start/stop time of recordings
· FIFO/Stack (Ring/Fill) selectable recording

Communication
· RS485 or RS232 optoisolated communication port.
· Modbus RTU & Algodue ASCII protocol
· Communication speed programmable up to 57,600 bps
· One front panel IrDA port

Inputs & Outputs
· Up to 4 digital outputs for energy pulsing or for alarm
  tripping
· Optional one or two electro-mechanical counters for
  energy totalizing.