KEPmeter MS-716 (MS716 ST1 Special) Flow Computer


KEPmeter MS-716 is a special version of the SUPERtrol-1 Flow Computer which is supplied in a vehicle mount enclosure. The MS-716 satisfies the instrument requirements for a variety of flowmeter types in liquid applications. Multiple flow equations and instrument functions are available in a single unit with many advanced features. The alphanumeric display shows measured and calculated parameters in easy to understand format. Single key direct access to measurements and display scrolling is supported

The versatility of the MS-716 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.

The isolated analog output can be chosen to follow volume flow, corrected volume flow, mass flow, temperature, 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 data logging, transaction printing, or for connection to a modem for 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 and printing system setup.

KEPmeter MS-716 Features

  • Vehicle Mount Enclosure; Rugged Aluminum Construction
  • Provisions for Sealing
  • “EZ Setup” Guided Setup for First Time Users
  • Rate/Total and Batching Functions
  • Menu Selectable Hardware & Software Features
  • Universal Viscosity Curve (UVC) and API Eq.
  • Advanced Batching Features: Overrun Compensation, Autobatch Start, Print End of Batch, Slow Fill, 2 Stage Batching
  • Isolated Outputs Standard
  • RS-232 Port Standard, RS-485 Optional Advanced Printing Capabilities Windows™ Setup Software
  • On Board Data Logging
  • DDE Server & HMI Software Available
  • Enhanced Modem Features for Remote Metering



  • Indoor Use
  • Altitude up to 2000m
  • Operating Temperature: 0°C to +50°C,  (-20°C to 55°C optional)
  • Storage Temperature: -40°C to +85 C
  • Maximum Relative Humidity : 80% for temperatures up to 31°C decreasing linearly to 50% RH at 40°C
  • Mains supply voltage fluctuations not to exceed ±10% of the nominal voltage
  • Transient overvoltage according to INSTALLATION CATEGORY II (see UL 3101-1 Annex J)
  • POLLUTION DEGREE 2 in accordance with IEC 664 (see 3.7.3)
  • Materials: UL, CSA, VDE approved UL= UL Class 1 Division 2
  • Approvals: CE Approved Light Industrial,UL File  #: E192404 / CUL


  • Type: 2 lines of 20 characters
  • Types: Backlit LCD or VFD ordering options
  • Character Size: 0.3″ nominal
  • User selectable label descriptors and units of measure


  • Keypad Type: Membrane Keypad
  • Keypad Rating: Sealed to Nema 4 Number of keys: 16


  • Size: See Dimensions
  • Seal: NEMA4X
  • Materials: Aluminum

Power Input

The factory equipped power option is internally fused. An internal line to line filter capacitor is provided for added transient suppression.

  • Order Option 1: 110VAC: 85 to 127 Vrms, 50/60 Hz
  • Order Option 2: 220VAC: 170 to 276 Vrms, 50/60 Hz
  • Order Option 3: 12VDC: 10.5 to 14 VDC
  • Order Option 4: 24VDC: 18 to 24 VDC

Flow Inputs:

Analog Input:

  • Ranges Voltage: 0-10 VDC, 0-5 VDC, 1-5 VDC and  Current: 4-20 mA, 0-20 mA
  • Basic Measurement Resolution: 16 bit
  • Update Rate: 5 updates/sec minimum
  • Automatic Fault detection: Signal over/under range,  Current Loop Broken
  • Calibration: Self Calibration and Auto-zero Continuously
  • Extended calibration: Learns Zero and Full Scale of each range using special test mode.
  • Fault Protection:
    • Fast Transient: 500 V Protection (Capacitive Clamp)
    • Reverse Polarity: No ill effects
    • Over-Voltage Limit: 50 VDC Over voltage protection
    • Over-Current Protection: Internally current limited Protected to 24 VDC.

Pulse Inputs:

  • Number of Flow Inputs: one
  • Configurations supported: single input with or without quadrature (menu selectable)
  • Input Impedance: 10 KΩ nominal
  • Pullup Resistance: 10 KΩ to 5 VDC (menu selectable)
  • Pull Down Resistance: 10 KΩ to common
  • Trigger Level: (menu selectable)
    • High Level Input
    • Logic On: 3 to 30 VDC
    • Logic Off: 0 to 1 VDC
    • Low Level Input (mag pickup) Selectable sensitivity: 10 mV & 100 mV
  • Minimum Count Speed: User selectable
  • Maximum Count Speed: Selectable: 0 to 20kHz
  • Overvoltage Protection: 50 VDC
  • Fast Transient: Protected to 500 VDC (Capacitive Clamp)

Compensation Input

The compensation input is menu selectable for temperature, density or not used.

  • Operation: Ratiometric
  • Accuracy: 0.01% FS
  • Thermal Drift: Less than 100 ppm/C
  • Basic Measurement Resolution: 16 bit
  • Update Rate: 1 update/sec minimum
  • Automatic Fault detection:
    • Signal Over-range/under-range
    • Current Loop Broken
    • RTD short
    • RTD open
    • Fault mode to user defined default settings
  • Transient Protection: 500 V (Capacitive Clamp)
  • Reverse Polarity: No ill effects
  • Over-Voltage Limit (Voltage Input): 50 VDC

Available Input Ranges

  • Voltage: 0-10 VDC, 0-5 VDC, 1-5 VDC
  • Current: 4-20 mA, 0-20 mA
  • Resistance: 100 Ohms DIN RTD
  • 100 Ohm DIN RTD (DIN 42-760, BS 1904):
    • Three Wire Lead Compensation
    • Internal RTD linearization learns ice point resistance
    • 1 mA Excitation current with reverse polarity protection
    • Temperature Resolution: 0.01 C

Control Inputs

  • Switch Inputs are menu selectable for Start, Stop, Reset, Lock, Inhibit, Alarm Acknowledge, Print or Not Used.
  • Control Input Specifications
    • Input Scan Rate: 10 scans per second
    • Logic 1: 4 – 30 VDC
    • Logic 0: 0 – 0.8 VDC
    • Transient Suppression: 500 V fast transient (Capacitive Clamp)
    • Input Impedance: 100 KΩ
    • Control Activation: Positive Edge or Pos. Level based on product definition

Excitation Voltage

  • 110/220 VAC Powered Units :  Menu Selectable: 5, 12 or 24 VDC @ 100mA
  • 24 VDC Powered Units : Menu Selectable: 5 or 12 VDC @ 100mA
  • 12 VDC Powered Units :  5 VDC @ 100mA

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