DFM 165 - 350



Nominal size DN::
10 - 65
Material sealing element (in contact with medium):
Socket | Spigot | Flange
  • Measuring range 3 up to 50000 l/h
  • Large selection of measuring ranges, nominal diameters, also for special media
  • Suitable for a wide range of applications for gaseous media, water, alkalines, acids
  • Direct visualisation of the measured values
  • Accuracy class 4
  • Integrated mounting rail for flow data sensors



  • The limit reed switch ZE 95 / ZE 951 serves as a flow signal transmitter. It is clamped to the dovetail guides and signals when the magnetic float in the measuring tube has reached or passed the signal transmitter position. As soon as this happens, a contact in the signal transmitter, as the actual switching element (reed switch), opens or closes.
  • Accessory for the flow meter, type DFM with a magnetic float
  • Simple assembly and positioning on the dovetail of the DFM measuring tube
  • Plug of the compact reed switch can be positioned in 0° - 90° - 180° steps
  • Easy to retrofit in existing systems
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  • magnetic angle sensor for continuous measurement
  • controlled by microprocessor to ensure accurate flow measurement and evaluation
  • 2-wire technology
  • 4...20 mA analogue output
  • individual programming adapted to the DFM
  • 11-point calibration
  • nonvolatile storage of the values
  • 0 button to compensate for the surrounding magnetic influences
  • factory settable inertia (low-pass filter) 0.1…2.5 sec. according to customer specifications
  • Recording accuracy of the magnetic float higher than 0.5%
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