Flow Transmitters

Flow Transmitters

RF3400 Vortex Flowmeter

A vortex is a region in a fluid in which the flow is rotating around an axis line, which may be straight or curved. The plural of vortex is either vortices or vortexes. Vortex flowmeters are among the most versatile of flowmeters. They can measure liquids, steam and gases with relative ease. One reason they are widely used for steam flow measurement is that they can tolerate the high temperatures of steam. Steam is the most difficult fluid to measure.

Key Features

  • Austenitic stainless steel made Sensor
  • Resolution up to ± 0.2%
  • Standard 4-20 mADC Analog/ Pulse Output
  • Compatible with RS232, RS485 & HART
  • Communication Interfaces
  • Li Battery powered remote version
  • Heat Dissipation Function for High
  • Temperature Application


  • Line Size- 15 ~ 400 mm
  • Accuracy- ±1% FS
  • Output- Pulse/ 4-20mADC Analog
  • Power Input- 24 VDC (±10%); Remote version with 3.4V Lithium Battery
  • Operating Pressure - Standard 1.6 MPa; Custom - 2.5 – 4.0MPa
  • Operating Temprature - (-)10°C ~ 350°C
  • Communication Protocol - RS232 & RS485, HART protocol
  • Sensor & Body Material SS321/SS304/SS316
  • Ambient Temperature- (-)30°C ~ 60°C
  • Protection- IP65, Explosion Proof: Exd (Flame Proof)

Key Applications

  • Clean Liquids
  • Air
  • Gases
  • Saturated steam,
  • Compressed air application
  • Inlet fuel, air for efficient combustion
  • Inlet feed water for boiler,
  • Boiler exhaust,
  • Compressed air application

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