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Version: v2 (latest)

Analyzer Overview

General Information About Analyzer Functions​

The RE-431-D Series analyzers provide accurate monitoring of three-phase electrical parameters, delivering all the measurements required for the management and optimization of electrical energy consumption.

The models in the series are:

ModelAdditional communication
RE-431-DWi-Fi, Bluetooth LE, Modbus TCP
RE-431-D-RS485The above + Modbus RTU over RS485 interface
RE-431-D-LWThe above + LoRaWAN connectivity

Main Functions​

  • Monitoring of electrical parameters: current (I, In), voltage (U, V), active/reactive/apparent power (P, Q, S), power factor, frequency and energy
  • Active, reactive and apparent energy counters, with imported and exported energy, total and per phase
  • Harmonic distortion (THD) measurement and harmonics visualization
  • Phasor diagram and real-time waveforms
  • Detection and logging of power quality events (Dip & Swell) with date and time
  • Overvoltage and overcurrent alerts shown on the display
  • Built-in configuration menu accessible from the display, protected by PIN
  • Communication via Wi-Fi, Bluetooth LE, Modbus TCP, Modbus RTU (RS485) and MQTT/MQTTs
  • LoRaWAN connectivity on the RE-431-D-LW variant
  • Over-the-air (OTA) firmware updates

For the mapping of the data exposed via Modbus, see the Modbus Register Map page.