Vortex Flow Meter for Gas, Inline, ATEX, VADi EXD

  • Vortex Flow Sensor VA Di Ex-d for Gases

Functional Principle

  • Vortex Meter for flow rate and volume measurement 
  • Ultrasonic recording of the vortex shedding

Examples of Application

Flow measurement Ex-applications:

  • Air
  • Outgoing Air
  • Sludge Activation Air
  • Engine Intake Air
  • Natural Gas
  • Exhaust Gas
  • Process Gas
  • Biogas
  • Torch Gas
  • Water Vapour.


Measurable Variables

  • Actual Velocity
  • Actual Flow Rate
  • Standard Volume Flow (in combination with pressure and temperature sensors)


  • Measuring tube with flanged connection 
  • A compact measuring instrument with an optional integral display  in Ex-application
  • Application in Category 1 (Zone 0 and 20), transducer housing approved for Category 2 (Zone 1 and 21)
  • No external isolation/supply unit necessary 
  • Records even the slightest flow rates, due to patented ultrasonic sensing. 
  • High measuring dynamics (1:100)
  • Easy to clean
  • Corrosion-resistant
  • Operates to a large extent irrespective of gas composition 
  • Low-pressure drop
  • Easy to configure via HART interface


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