DFM 5.0 Doppler Flow Meter
  • Non-Contacting Ultrasonic Sensor
  • Sensor: SE4, strap on, single head ultrasonic
  • Sensor cable: shielded coaxial pair
  • Flow rate: -12.2 to + 12.2 m/sec
  • Large, 4-Digit LCD Display
  • 12-Digit Totalizer
  • Isolated 4-20mA (1000 ohm)
  • 2 Programmable Control Relays
  • Adjustable Sensitivity
  • Intrinsically Safe Sensor Option
  • Built-in 5-Key Calibrator
  • RFI Rejection Filters

Measure flow from outside a pipe. The Greyline DFM 5.0 is ideal for "difficult liquids" that would damage regular flow meters - wastewater, slurries, sludge, chemicals, viscous liquids and abrasives. There is no obstruction to flow and no pressure drop. The standard, strap-on ultrasonic sensor fits any pipe 1/2" (12.5 mm) Inside Diameter or larger. The electronics/display enclosure can be mounted nearby.

Use the isolated 4-20mA to transmit flow to remote displays, recorders or controllers. The 2 programmable relays can be used for flow control, pump protection or flow proportionate pulse. Calibration is easy with the built-in 5-key calibrator. Display and totalize flow in your choice of engineering units (gallons, liters etc.)

Sensor cable can be extended up to 500 ft. (152 m) with no loss of signal. The DFM 5.0 can be equipped with intrinsic safety barriers for sensor installation in hazardous rated locations. Other options include high temperature sensors and a built-in 50,000 point Data Logger.

  • Standard features include:
  • sensor - strap-on, single head ultrasonic for 1/2" to 180" (12.5 mm to 4.5 m) ID pipes
  • sensor cable - 20ft / 6m shielded coaxial pair
  • installation - sensor compound kit - PC4 stainless steel sensor mounting clamp
  • enclosure - watertight NEMA4X (IP66) polycarbonate
  • displays - Flow Rate - large 4-digit LCD - Totalizer/Menu/Status - 12-digit alphanumeric
  • calibration - built-in 5-key programmer
  • sensitivity - keypad adjustable
  • output - Isolated 4-20mA (1000 ohm)
  • 2 control relays - 5 amp SPDT - programmable for flow proportional pulse output, and/or flow alarm
  • backflow rejection - external, voltage-free relay input
  • electrical surge protection and RFI filters: AC line, sensor, 4-20mA
  • power input - 100-240VAC 50/60Hz
  • 1 Manual - Installation and Operation