PM135 Multifunctional 3-Phase Power Meter

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PM135EH Multifunctional Power Meter

The PM135 is a multi-functional three-phase power meter with basic revenue metering, power quality and harmonics analysis.

The PM135 provides a cost-effective substitute for numerous analog meters used by industrial, commercial and utility customers for basic power metering.

The PM135 is widely integrated in panel boards and SCADA systems. With the addition of the unique TOU module, the EH model answers the needs of revenue metering applications. It is also suitable for utility substation automation with its support of the industry standard DNP 3.0, Modbus RTU and IEC 60870-5-101/104 protocols, as well as its I/O capabilities (using the Digital Input/Output modules).

The PM135 series consists of two basic models providing digital measurements of more than 80 electrical parameters locally, and more than 100 electrical parameters via RS-485 interface.

The PM135 has a 3×2” / 76x49mm backlit LCD display as well as SATEC’s unique bar graph loading indicator.

Measurement and Communication

The PM135 accurately measures over 100 parameters from basic frequency, voltages and currents, to all power parameters, four quadrant active, reactive and apparent energies, harmonics and time of use (TOU).

The PM135 has an integral RS-485 communication port for a wide range of protocols—Modbus, DNP 3.0 and IEC 60870. Its expansion module allows connection of a second communication port, including Ethernet, Profibus, RF or GPRS, as well as second RS-485 and RS-232 ports.


Measurement Features

  • PM135P: Multi-functional 3-phase power meter functionality (see Features)
  • PM135EH: All the features of the P model plus Revenue Meter & Power Quality control (see Features)

Current Inputs

  • 1A Standard 1A CT
  • 5A Standard 5A CT
  • HACS High Accuracy Current Sensors

  • Manuals/Data Sheets

  • Features
  • Multi-Functional 3-Phase Power Meter

    • Voltage, current (including neutral current), power, energy, power factor, frequency, voltage/current unbalance
    • Current range up to 200%
    • Supported frequencies: 25, 50, 60 and 400 Hz
    • Direct connection up to 690V L-L (up to 1.15 MV via PT)

    Basic Power Quality Control (EH Model)

    • Individual voltage and current harmonics (up to the 40th)
    • Voltage and current THD, TDD & K-Factor
    • Time stamped max/min values
    • Waveforms 128 samples/cycle (via comm.)

    Revenue Meter (EH Model)

    • Exceeds accuracy class 0.5S
    • Time Of Use (TOU) tariffs

    Event/Data Log (EH Model)

    • System events & data logging
    • Real-time stamps

    Communication protocols

    • Protocols: Modbus RTU, ASCII, DNP 3.0, Modbus/TCP, DNP3/TCP, Profibus DP, IEC 60870-5-101, IEC 60870-5-104

    Alarm and Control Functions

    • 16 programmable set points
    • 4 counters

    Real Time Clock

    • Built-in clock and calendar functions

    Power Supply

    • Multi-purpose AC/DC power supply (85-265V AC, 88-290V DC)
    • Special versions (12, 24-48V DC)


    • Dual panel mounting: 4” Round; Square 96×96 DIN
    • Weight: 1.5 lbs / 0.7 kg
    • H×W×D: 4.5×4.5×4.3″ / 114×114×109 mm
    • One add-on module: see Modules tab

  • Plug-in Modules

  • PM135 Plug-ins PM135 Plug-ins

    The PM13x modular approach enables users to assemble a system that meets their specific needs.

    Second Communication port

    Second Communication port – Small form

    One of the following:

    • Ethernet (TCP/IP)
    • RS232/422/485
    • GPRS
    • RF *

    * Module & accessories available in certain regions only

    Analog Outputs Small form

    Analog Outputs – Small form

    4 analog outputs, selection of ranges upon order:

    • ±1mA
    • 0-20mA
    • 0-1mA
    • 4-20mA
    • 0-3mA
    • ±3mA
    • 0-5mA
    • ±5mA

    Digital I/O Small form

    Digital I/O – Small form

    • 4 Digital Inputs (Dry Contact) / 2 Relay Outputs 250V / 5A AC
    • 4 Digital Inputs (Dry Contact) / 2 SSR Outputs 250V / 0.1A AC
    • 4 Digital Inputs (Dry contact) with RTC battery backup for TOU

    Digital I/O Large form

    Digital I/O – Large form

    • 12 Digital Inputs (Dry Contact or 250VDC)
    • 4 Relay Outputs 250V/5A AC
    • Optional selection of Ethernet, RS-485 or Profibus

    Dimensions (HxWxD):
    Small form: 2.8×1.8×1.3″ / 72×46×34 mm

    Large form: 3.7×3×1.7″ / 95×77×45 mm

  • Screenshots
  • PM135 Screen Harmonics

    PM135 Screen Phasor

    PM135 Screen Waveforms