The PM175 is a compact, multi-function, three-phase AC power meter and power quality analyzer specially designed to meet the requirements of users ranging from electrical panel builders to substation operators. Bright 3-row LED display provides easy local meter readings. The display module is freely detachable and can be located at a distance of up to 1000 meters from the device. Two communication ports allow local and remote automatic meter readings and setup though the supplemental communication or user data acquisition software. (Various communication preferences are made available for remote communications with the meter inclusive of public telephone lines, LAN and the Internet.)

  • Monitoring, statistics & reports according to EN50160 specifications and/or programmable.
  • 6 channel waveform recording
  • Harmonics & inter-harmonics according to IEC 61000-4-7
  • Directional power harmonics
  • Flicker according to IEC 61000-4-15
  • Power quality event/data logging with time stamps
  • Logging capability for more than 100 parameters
  • Waveform recording capability up to 8 cycles of pre-fault, and up to 16 post-fault.
  • 16 programmable set points
  • Built in 2DI/2DO
  • Optional 2DI/2DO (total 4DI/4DO), 2AO, 2AI
  • 2 independent communication ports (RS232, RS422, RS485, modem, Ethernet, Profibus DP)
  • Full galvanic isolation for all voltage and current channels
  • 0.2s Accuracy
  • Modbus RTU, Modbus ASCII and Modbus/TCP communication protocols
  • Easy field upgrading device firmware (passable)through any communication port
  • Precise internal clock with a battery backup
  • 1 Mbytes RAM with a battery backup for long-term data and waveform recording.
  • 3 voltage and 3 current transformer-isolated AC inputs for direct connection to power line or via potential and current transformers.
  • Multi-function 3-phase meter (true RMS, volts, amps, power, power factor, neutral current, voltage and current unbalance, frequency)
  • Embedded harmonic analyzer, voltage and current THD, current TDD and K-Factor, inter-harmonics THD, up to 50th order harmonic.
  • Voltage and current harmonic spectrum and angles.
  • Ampere/Volt/THD/TDD demand meter
  • Class 0.5 four-quadrant energy meter
  • Time-of-Use, 8 totalization and tariff energy/demand registers x 8 tariffs, 4 seasons x 4 types of days, 8 tariff changes per day, easy programmable tariff schedule.
  • Automatic daily profile for energy and maximum demand readings (total and tariff registers)
  • Embedded programmable controller; 16 control set points; programmable thresholds and delays; relay output control; 1/2- cycle response time
  • Event recorder for logging internal diagnostics events, control events and I/O operations
  • 16 data recorders; programmable data logs on a periodic basis and on any internal and external trigger.
  • Two waveform recorders; simultaneous 6-channel AC recording in a single plot; sampling rate of 32, 64 and 128 samples per cycle; 20 pre-fault cycles; up to 30 seconds of continuous recording at a rate of 32 samples per cycle.
  • EN50160 Power Quality Recorder (EN50160 compliance statistics, EN50160 harmonics survey statistics, onboard power quality analyzer; programmable thresholds and hysteresis; ready-for-use reports)
  • Real-time waveform capture and monitoring; simultaneous 6- channel 4-cycle capture at 128 samples per cycle
  • 2 optional optically isolated analog outputs with an internal power supply; options for 0-20mA, 4-20mA, 0-1mA, and ± 1mA output.
  • 50/60 Hz operation
  • Modbus RTU
  •  Modbus ASCII
  • Modbus/TCP

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