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eFlo – electronic flow meter

eFlo is an electronic flow measurement instrument used to display and control the flow of gases. With simple compatibility with existing
controls, tracking and monitoring gas flows
has never been easier. Designed for use in the harshest industrial enviroments.

eFlo allows for easy replacement of manual flow meters and seamlessly integrates into existing control systems.


  • Available with electronic valve, manual valve, and without control valve
  • Digital display with easy-to-use touch pad
  • Precision flow measurement
  • Direct and remote setpoint control
  • Utilizes Flow Meter View software
  • Easy retrofit for existing flow measuring equipment
  • Flow calibration can be certified while in use to meet CQI-9 requirements
  • NIST-traceable calibration
  • SCADA Integration: Current Flow, Totalized Flow, Setpoint, Cost Calculation
  • Built-in high/low flow alarms
  • Flow totalizing
  • Analog control and feedback for data acquisition
  • Integrated comms via Modbus over RS232/RS485

Common gases:

  • Natural Gas
  • Propane
  • Air
  • Hydrogen
  • Dissociated Ammonia
  • Nitrogen
  • Exothermic Gas
  • Endothermic Gas
  • Methane
  • Other Industrial Gases


Indicator LEDs Tactile Keypad
Process Data Display Totalizer
Alarm (Hi/Low) Aggregate flow from last reset
Auto/Manual Reset
Open/Close Setpoint
Motor Drive Auto/Manual


eFlo Part Number

14 Ventiltyp Gasart    
Flow Meter 

= Automatic (Electronic) Valve

Acetylene Endothermic Gas (C3H8) Methane
  M = Manual (Non-Electronic) Valve Air Endothermic Gas (CH4) Natural Gas

= Fixed Flow No Valve

Ammonia Ethane Neon
    Argon Ethylene Nitrogen
    Butane Exothermic Gas Nitrous Oxide
    Carbon Dioxide Helium Oxygen
    Carbon Monoxide Hydrogen Propane
    Chlorine Hydrogen Chloride Sulfur Dioxide
    Dissociated Ammonia Hydrogen Sulfide  



Power Required 24V @ 400mA
Accuracy +/- 4%
Turndown Ratio 6:1
Gas Temp. Limits 32°F to 150°F (0°C to 65.6°C)
Ambient Temp. Limits 32°F to 150°F (0°C to 65.6°C)
Flow Output Signal (Linear) 4 – 20mA
Max. Output Signal Load 500 Ohm
Input Control Signal (Linear) 4 – 20mA
Response Time 1 – 10 Sek.
Communications RS232, RS485
Communications Protocol Modbus RTU
Flow Meter Pressure Limits 5 PSI max (Standard)