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MT830, MT831 three-phase electronic meter

MT830, MT831
Three-phase electronic meter

A multifunction meter for measurement of active, reactive, apparent energy and demand in four quadrants in two energy flow directions. A modular designed MT831 meter offers a wide range of input/output and communication configurations. A wide voltage and current range enables simple application in the field. The MT830 meter functionality is similar to MT831, except that it is not modular designed.

  • Measurement of active, reactive energy, apparent energy and demand in four quadrants
  • Measurement of instantaneous and average values of phase voltages, currents and frequencies
  • Measurement of power factor
  • Measurement of over/under voltages and power failures
  • Harmonic analysis of voltage and current (up to the 8th harmonic component)
  • Multirate energy and demand registration
  • Multi-channel load profile recorder
  • Load limiter
  • Definition of several energy supply contracts
  • A log-book
  • A seven-segment LCD in compliance with VDEW
  • An optical interface
  • Reading and parameter setting in no-power state with an opto-magnetic probe
  • MT831: communication modules and I/O modules (inputs and outputs, impulse inputs)
  • MT830: function inputs, impulse inputs
  • A communication module enables cascade connection of several meters
  • Alarm function a GSM call to a centre
  • Whole current connection (up to 120 A) and CT connection (up to 20 A)

Technical data:
  • Voltage: multi3 x 57,7/100 V 3 x 240/415 V
  • Current range: 5-10 A, 5-20 A, 5-120 A, 5//16 A
  • Accuracy class: 2 or 1 or 0.5S (active energy), 3 or 2 (reactive and apparent energy calibrated to 1%)
  • Frequency: 50 Hz or 60 Hz
  • External supply: 50-240 V AC/DC
  • Communication interfaces:
    -MT830 (integrated into the meter): CS, RS232, RS485
    -MT831 (integrated into the module): CS, RS232, RS485, PSTN, ISDN, GSM/GPRS, Ethernet

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