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The PM175 is a compact, multi-function, three-phase AC powermeter and power quality analyzer specially designed to meet the requirements of users ranging from electrical panel builders to substation operators. Selection of bright 3-row LED or 5.7" touch screen graphic color 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. Different communication options are available for remote communications with the meter including TCP/IP, Profibus and public telephone lines.




  • 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
  • Voltage and current harmonic spectrum and angles, up to 50th order
  • Inter-harmonics THD
  • Ampere/Volt/THD/TDD demand meter
  • Class 0.2S
  • Time-of-Use (TOU), 8 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 setpoints; 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


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