Series DFMT2-Digital Paddlewheel Flow Transmitter

Brand: Dwyer Instruments, LLC

The Series DFMT2 Remote Digital Paddlewheel Flow Transmitter is a two piece digital flow transmitter that provides instantaneous, as well as totalizing flow monitoring.

The two piece design allows the user to separate the control panel from the application, making it ideal for industrial use in reverse osmosis water purifying systems and any other applications where space is limited. 

The large backlit display makes navigating through the menu structure simple.

The Series DFMT2 uses high accuracy, industry proven paddlewheel technology, offers a user selectable 4 to 20 mA or pulse output, and has a corrosion resistant PVDF sensor giving it a long operation life.

Users can reset the totalizer at any time and set a security password protecting the system settings from unauthorized changes.
  • Two piece design allows the user to separate the control display from the application, making it ideal in areas where space is limited
  • The large backlit LCD display defines instantaneous as well as cumulative flow with visual indication bar designating percent of maximum flow
  • Long operation life with high accuracy Paddlewheel technology and Corrosion Resistant PVDF Sensor
  • Totalizer is user resettable at any time ideal for single batch totalization
  • Security password protecting prevents any unauthorized changes



  • ± 1.5 % of Full Scale

Ambient Temperature Range

  • -20° to 65° C (-4° to 149° F)


  • 2.38” x 1.25” LCD Display

Electrical Connectors

  • Screw Terminal (Removable)

Enclosure, Body Material

  • Polyamide

Environmental Protection

  • IP65

Flow Rate

  • 0.44 to 176.11 gpm (0.1 to 40 m³/hour)


  • 0 to 2 kHz

Loop Resistance

  • 750 ohms


  • Compatible Clean Liquids

NPT Connection

  • 1” NPT Male
  • 1/2” NPT Male
  • 1-1/2” NPT Male
  • 2” NPT Male
  • 3/4” NPT Male
  • 3/8” NPT Male

O-Ring Material

  • Fluoroelastomer


  • 4-20 mA
  • Square Wave Pulse

Power Requirement

  • 12-24 Vdc

Pressure Range

  • bar: 0 to 10
  • kPa: 0 to 1,000
  • psi: 0 to 145

Process Temperature

  • -20° to 90° C (-4° to 194° F)


  • ± 0.5 % of Full Scale

Sensor / Probe Material

  • PVDF

Shaft Material

  • Ceramic

  • Continuous Water Monitoring
  • Reverse Osmosis Systems
  • Remote Flow Monitoring
  • Cooling Towers
  • Chemical Proportioning or Blending
  • Industrial Water & Wastewater Treatment
  • Fluctuating Fluid Conductivity Applications
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