SICK FFU Series Flow Sensor

Measurement of flow via ultrasonic, non-contact measurement. Analog output, pulse/status output. Up to 16bar process pressure, suitable for CIP systems.

This model has 45 variants.
Effective August 29th, 2025 SICK has added a 9.8% surcharge for all of their products. The surcharge will appear as a separate line item on each sales order.
Part Number
  • FFU Series
Highlights...

Features

  • Measurement principle: ultrasonic sensor
  • Medium: fluids
  • Output signal(s):
    • Analog output 4 to 20mA, 0 to 20mA, 1x pulse/status output PNP/NPN transistor output for flow rate meter, empty pipe detection, flow monitoring, dosing output, flow direction
    • Analog output 4 to 20mA, 0 to 20mA, 2x pulse/status output PNP/NPN transistor output for flow rate meter, empty pipe detection, flow monitoring 1x switching input for dosing and counter reset
  • Nominal width of measuring tube:
    • DN 10
    • DN 15
    • DN 20
    • DN 25
    • DN 32
    • DN 40
    • DN 50
  • Maximum adjustable measuring range(s):
    • ≤ 900 l/min, 21 l/min, 36 l/min, 60 l/min, 240 l/min,
  • 180 l/min, 300 l/min, 480 l/min
  • Process temperature: 0 up to 80°C
  • Process pressure: ≤ 10/16bar
  • Enclosure rating: IP67, IP69
    • PPSU, EPDM / HDPE, EPDM wetted parts

The SICK FFU Series Flow Sensor is a non-contact ultrasonic flowmeter designed for reliable detection of the flow volume of conductive and non-conductive liquids. The compact design enables this product to be used in a wide range of applications, including those with limited space. This sensor features an enclosure rating of IP67, a seal-free sensor design with high-quality polysulfone (Ultrason S). This 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. 

Applications

  • Cooling circuits
  • Rinsing circuits and systems
  • CIP systems