General Features
o Wide supply range (95 – 270 Vrms)
o Custom FSTN display with backlight
o 3 voltage measuring inputs
o 3 current measuring inputs
o 4 language options
o 1MB internal memory
o Real time clock
o Alarm
o Hour counters (Operating hour and total hour)
o Communication via RS-485
o Measured parameters:
Current
Neutral Current
Voltage (Phase-Phase, Phase-Neutral)
Active, Reactive and Apparent Power
Frequency
Active Energy
Reactive Energy
Apparent Energy
Cos φ
Power Factor
Total Active Power
Total Reactive Power
Total Apparent Power
Total Cos φ
Total Power Factor
Total Harmonic Distortion for Current
Total Harmonic Distortion for Phase-Phase Voltages
Total Harmonic Distortion for Phase-Neutral Voltages
o Minimum and Maximum values are available for following parameters:
Current
Phase-Phase Voltage
Phase-Neutral Voltage
Active Power
Reactive Power
Apparent Power
Frequency
Total Harmonic Distortion for Current
Total Harmonic Distortion for Phase-Phase Voltages
Total Harmonic Distortion for Phase-Neutral Voltages
o Demand and Maximum Demand values are available for following parameters measured
with integration time:
Current
Active Power
Apparent Power
o Isolated digital input and output
6
o Capable of recording 256 events
o User password
o Changing primary and secondary values of current and voltage transformers
o Making measurements on 5 different connection type systems: 3 Phase 4 Wires, 3
Phase 3 Wires, 3 Phase Aron, 3 Phase 4 Wires Balanced, 3 Phase 3 Wires Balanced
o Contrast setting
o Backlight setting
o Demand and integration time setting
o Daylight savings time switching
Applications
MPR-3 Series devices are microprocessor-based devices which are designed to measure all parameters
of an electrical network, calculate the consumption values and display these on its LCD screen. Events
like interruptions, time and settings changes, reset operations will be recorded in real-time thanks to its
internal flash memory and Real Time Clock chip. These events then can be accessed and monitored
remotely via RS-485 line with Modbus RTU protocol.
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