KEP meter ES761 Net Energy Flow Computer


Net Energy Flow Computer for Saturated Steam Energy & Condensate Return Energy

Many of today’s flow meters offer multiple outputs that are assignable to flow and temperature. The ES761ST2 offers enhanced functionality to permit these multiple outputs to be used with added flexibility. This flexibility is utilized in common applications such as when computing the net energy of saturated steam energy in minus condensate return energy out.

Flow and Temperature can be measured at the multi-variable flow meter. A separate temperature measurement can be made in the condensate. The ES761 then computes the mass flow of steam as well as the input energy of steam from the available input sensors on steam, will also compute, the energy in the condensate return, and will compute the net energy.


  • Computes New Energy
    • Flowmeter And Temperature Or Pressure On
    • Saturated Steam Input
  • Temperature On Condensate Return Output
  • Use Any Flow Meter Type- Menu Selectable
  • Isolated Pulse, Analog, And Relay Outputs
  • Built-In Data-Logger Accessible From Standard RS232
  • Optional RS485 Modbus RTU Communication Port
  • Internal Communication Card Option
    • Supports: BACnet IP, BACnet MS/TP, Metasys N2,
    • Modbus TCP, AB Ethernet IP, AB DF1, LonWorks*
  • Windows Setup Software
  • Easily Configurable Through Keypad
  • Remote Metering Supported
  • Enhanced Features Include Stacked DP Transmitters, Peak Demand
  • Offers Full Line Of Other Flow Computations Supported As Standard
  • DDE Server & HMI Software Available
  • Remote Metering by Wireless or Modem

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Flow Meters and Computations

  • Meter Types: Vortex, Turbine, Positive Displacement, Magnetic, GilFlo, GilFlo 16 point, ILVA 16 Point, Mass Flow, and others
  • Square Law: Orifice, Venturi, Nozzle, V-Cone, Wedge, Averaging Pitot, Target, Verabar, Accelabar, and others
  • Multi-Point Linearization: May be used with all flowmeter types. Including 16 points, UVC and dynamic compensation.


  • Operating Temperature: : 0 to +50°C (std)
  • Storage Temperature: : -40 to +85°C
  • Humidity : 0-95% Non-condensing


  • Listing: CE Approved Light Industrial


  • Type: 2 lines of 20 characters
  • Types: Backlit LCD, OLED and VFD options, 0.2” characters
  • User-programmable label descriptors and units of measure


  • Keypad Type: Membrane Keypad, 16 Raised Keys
  • Keypad Rating: Sealed to NEMA 4X / IP65


  • Enclosure Options: Panel, Wall, Explosion Proof
  • Size: See Dimensions at the datasheet

Real-Time Clock

  • The Flow Computer is equipped with a battery-backed real-time clock with a display of time and date.
    • Format:
      • 24-hour format for time
      • Day, Month, Year date display
      • Daylight Savings Time (optional)

Power Input

  • The factory equipped power option is internally fused. An internal line to line filter capacitor and MOV are provided for added transient suppression.MOV protection for surge transient is also supported
  • Universal AC Power Option: 85 to 276 Vrms, 50/60 Hz
    • Fuse: Time Delay Fuse, 250V, 500mA
  • DC Power Option: 24 VDC (16 to 48 VDC)
    • Fuse: Time Delay Fuse, 250V, 1.5A

Flow Inputs:

  • Analog Input:
    • Accuracy: 0.02% FS at 20° C
    • Ranges
      • Voltage: 0-10 VDC, 0-5 VDC, 1-5 VDC
      • Current: 4-20 mA, 0-20 mA, 4-20 mA stacked, 0-20 mA stacked
    • Basic Measurement Resolution:16 bit
    • Update Rate: 2 updates/sec
    • Automatic Fault detection: Signal over/under-range, Current Loop Broken
    • Calibration: Operator assisted learn mode
    • Extended calibration: Learns Zero and Full Scale of each range

Pulse Inputs:

  • Number of Flow Inputs: one
  • Impedance: 10 KΩ nominal
  • Trigger Level: (menu selectable)
  • Minimum Count Speed: 0.25 Hz (to maintain rate display)
  • Maximum Count Speed: Selectable: 0 to 40 kHz

More Info Check Data Sheet: KEP meter ES761 Net Energy Flow Computer