FLOW 55 Open Channel Flowmeter

Electromagnetic open-channel flowmeter with integrated ultrasonic level sensor.

Electromagnetic flowmeter for open channels and partially filled pipes. It combines electromagnetic induction with an integrated ultrasonic sensor for level and velocity, with accuracy of +/-2-3 % of actual flow.

Key features

  • Dual sensing: electromagnetic + ultrasonic
  • For partially filled pipes and open channels
  • Permanent immersion allowed

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Power 230 V AC or 24 V DC
Nominal diameter DN 80-600
Medium temperature 0 to 55 C
Outputs pulse, status, 4-20 mA, Modbus RTU; HART, SD card, M-Bus, Ethernet, IoT optional
Protection sensor IP68; transmitter IP65-IP68
  • Dual sensing: electromagnetic + ultrasonic
  • For partially filled pipes and open channels
  • Permanent immersion allowed

Electromagnetic induction measures the flow velocity (Faraday), while an integrated ultrasonic sensor measures the liquid level. Together they give the flow area, and flow rate = area x velocity.

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