KEP meter ES-762 Utility Metering Flow Computer

KEP meter ES-762 Utility metering
KEP meter ES-762 Utility metering with auxiliary input

ES762 Utility Metering Flow Computer with Multichannel, Auxiliary Inputs & Totalizers

The ES-762 Flow Computer primarily satisfies the instrument requirements for a variety of flowmeter types in liquid, steam and heat applications. Multiple flow equations are available in a single instrument with many advanced features. Two auxiliary current and four totalizer inputs are provided for secondary measurements.

The alphanumeric display offers measured parameters in easy to understand format. Manual access to measurements and display scrolling is supported. The versatility of the Flow Computer permits a wide measure of versatility within the instrument package. The various hardware inputs and outputs can be “soft” assigned to meet a variety of common application needs. The user “soft selects” the usage of each input/output while configuring the instrument. Multichannel auxiliary inputs can gather other information from the site.

Applications Include: Steam Mass, Steam Heat, Chilled Water Only, Heated Water Only including Low DeltaT cutoff.

The isolated analog output can be chosen to follow the volume flow, heat flow, mass flow, temperature, pressure, or density by means of a menu selection. Most hardware features are assignable by this method.

The user can assign the standard RS-232 Serial Port for external data logging, transaction printing, or for connection to a modem for a remote meter reading. A Service or Test mode is provided to assist the user during start-up system check out by monitoring inputs and exercising outputs. The system setup can also be printed.

Feature

  • “EZ Setup”- Guided Setup for First Time Users Totalizers
  • Utility Metering of Steam and Heating or Cooling Water Energy
  • Two Auxiliary 4-20mA Analog Inputs for Temperature, Pressure, Differential Pressure, %RH
    or Conductivity
  • Four Auxiliary Pulse Inputs and Totalizers for Secondary Measurement of Total from other meters
  • Menu Selectable Hardware & Software Features
  • Internal Data Logging
  • Isolated Pulse and Analog Outputs Standard
  • RS-232 Port Standard, Provides Power for Modem
  • RS-485 Modbus RTU
  • Internal Communication Card Option
    Supports: BACnet IP, BACnet MS/TP, Metasys N2,
    Modbus TCP, AB Ethernet IP, AB DF1, LonWorks*
  • Windows™ Setup Software
  • Supports Most Flowmeter Types

  Another Article:

Specification

Flow Meters and Computations

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

Environmental

  • Operating Temperature: 0°C to +50°C
  • Storage Temperature: -40°C to +85 C
  • Humidity : 0-95% Non-condensing
  • Materials: UL, CSA, VDE approved

Listing

  • Listing: CE Compliant, UL/C-UL Pending

Display

  • Type: 2 lines of 20 characters
  • Types: Backlit LCD or OLED
  • Character Size: 0.2” nominal
  • User-programmable label descriptors and units of measure

Keypad

  • Keypad Type: Membrane Keypad with 16 keys
  • Keypad Rating: Sealed to NEMA 4X / IP65

Enclosure

  • Enclosure Options: Panel & Wall Mounting Styles
  • Size: See Dimensions at the datasheet
  • Depth behind panel: 6.5” including mating connector
  • Type: DIN
  • Materials: Plastic, UL94V-0, Flame retardant
  • Bezel: Textured per matt finish

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 time display
      • Day, Month, Year date display

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: 85 to 276 Vrms, 50/60 Hz
  • DC Power Option: 24 VDC (16 to 48 VDC)
  • Power Consumption:
    • AC: 11.0 VA (11W)
    • DC: 300 mA max.

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: 4 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
    • Fault Protection:
      • Fast Transient: 500 V Protection (capacitive clamp)
      • Reverse Polarity: No ill effects
      • Over-Voltage Limit: 50 VDC Overvoltage protection
      • Over-Current Protection: Internally current limited protected to 24VDC

Pulse Inputs:

  • Number of Flow Inputs: one
  • Impedance: 10 KΩ nominal
  • Trigger Level: (menu selectable)
    • High-Level Input
      • Logic On: 2.5 to 30 VDC
      • Logic Off: 0 to 2 VDC
    • Low-Level Input (mag pickup)
      • Sensitivity: 10 mV or 100 mV
  • Minimum Count Speed: 0.25 Hz (to maintain rate display)
  • Maximum Count Speed: Selectable: 0 to 50 kHz
  • Overvoltage Protection: 50 VDC

More Info Check Data Sheet: KEP meter es762

Reference: https://kepmeters.com/

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