2-wire solution

OPTIFLUX 4040 C 2-wire EMF
  • 2-wire connection without additional cabling
  • As dynamic, reliable and accurate as a 4-wire EMF
  • Unimpeded pipe cross-section
  • No additional pressure loss
  • Minimum conductivity 5 μS/cm
  • Intrinsically safe connection

OPTIFLUX 4040 C is an electromagnetic flowmeter in 2-wire technology with the dynamics, reliability and accuracy of a 4-wire EMF.

OPTIFLUX 4040 C is suitable for steady or pulsating flows.


  • 2-wire EMF with 4-wire functionality
  • Reliable readings even in case of pulsating or fast changing flows due to rapid signal processing
  • Low power consumption and operating costs
  • Protection classes "I", "e" or "d" selectable by the user during installation
  • The only 2-wire electromagnetic flowmeter suitable for conductivities down to 5 μS/cm


  • Chemicals
  • Iron, Steel & Metals
  • Minerals & Mining
  • Pharmaceuticals
  • Power Plants
  • Pulp & Paper
  • Water
  • Wastewater


  • Pulsating flows
  • For aggressive chemicals
  • For products with high solid contens
  • Suitable for control loop applications