Measurements
· Three-phase 3 or 4-wire unbalanced load operation
· Direct measurement up to 600VAC
· Programmable CT & PT ratio
· True RMS metering
· THD calculation on voltage and current
· Optional FFT analysis up to 15^th order
· More than 60 electrical parameters displayed
  (instantaneous, demand and peak indication)
· Fully bi-directional, four-quadrant readings via serial port
· Optional temperature indication

Front Panel Display
· High contrast bright, easy to read, graphic LCD display with   a large viewing area of 79x44 mm
· White LED display backlighting with 100.000 hours lifetime
· Up to four parameters displayed in the same page
· Setup and resetting operations protected by different   passwords

Communication
· Optional RS485 or RS232 optoisolated communication
  port
· Modbus or standard protocol
· Communication speed programmable up to 57,600 bps.
· Optional Profibus, Lonbus interfaces

Inputs & Outputs
· Two digital outputs for energy pulsing or for
  alarm tripping.
· Optional one digital input for tariff synchronization
. Optional internal interface for Rogowski transducer     Available ranges 200,1000 or 3000A on request.