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Flow sensors
FFU

Non-contact flow measurement

Your Benefits

  • Maintenance-free flow sensor; reduces maintenance costs
  • Adjustable measuring ranges, reduced number of variants
  • Can be used for conductive and non-conductive liquids, reducing both the number of variants and storage costs
  • Straight measuring tube reduces pressure loss, thus reducing energy costs
  • Sensor without seals increases process reliability and availability
  • Flexible measuring device for all industries

Overview

Non-contact flow measurement

The non-contact FFU ultrasonic flowmeter detects the flow volume of conductive and non-conductive liquids. Swimming against the current requires more strength than with the current – this is the simple fact on which ultrasonic flow measurement according to the phase difference process is based. Its compact design enables the device to be used in a wide range of applications, including those with limited space. This sensor with an enclosure rating of IP67 features a seal-free sensor design with high-quality polysulfone (Ultrason S), which not only makes it possible to use the device in harsh ambient conditions, but also ensures high process reliability. The large cleartext display also helps provide simple, fast, and hassle-free commissioning.

At a glance
  • Flow sensor for conductive and non-conductive liquids
  • Compact design with no moving parts
  • Process temperature up to 80 °C, process pressure up to 16 bar
  • High chemical resistance due to seal-free sensor design
  • Large display with membrane keyboard
  • Integrated empty tube detection

Applications

Technical overview

 
  • Technical data overview

    Technical data overview

    Measurement principleUltrasonic sensor
    MediumFluids
    Output signal

    Analog output 4 mA ... 20 mA, 0 mA ... 20 mA current flow and temperature1 pulse/status output PNP/NPN-transistor output for flow rate meter, empty pipe detection, flow monitoring, dosing output, flow direction (dependent on type) 1)

    Analog output 4 mA ... 20 mA, 0 mA ... 20 mA current flow and temperature2 pulse/status output PNP/NPN-transistor output for flow rate meter, empty pipe detection, flow monitoring1 switching input for dosing and counter reset 1)

    Nominal width measuring tube

    DN 10

    DN 15

    DN 20

    DN 25

    Maximum adjustable measuring range0 l/min ... 240 l/min
    • 1) All connections are polarity protected. All outputs are overload and short-circuit protected.
All technical data can be found accompanying the individual product

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