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HomeProductsProduct categoriesSensor technologyDigital IQ sensors (online) > IQ ultrasonic sludge level sensors

Digital IQ sensor to determine the sludge level

WTW sensors - IQ ultrasonic sludge level sensor IFL 700 IQ (maintenance-free cleaning system)

Unique on the market: Sludge level measurement with maintenance-free cleaning system - the FL 700 IQ with smart signal processing

  • Ready to use
  • Detailed echo profile presentation on the display
  • Maintenance-free cleaning system

Smart signal processing - the sensor has a special pattern detection feature and can therefore distinguish between the sludge level and undesired signals. This always results in reliable measuring results.

Reliable ultrasonic measurement principle

The IFL 700 IQ is based on the ultrasonic measuring principle. Here, the sludge level is determined via the runtime of the echo. Contrary to optical sludge level measuring systems, this continuous measuring principle has important advantages. It offers low investment and operating costs, a lower maintenance effort as well as higher data availability.

Unique on the market - maintenance-free cleaning system

The IFL 700 IQ has a contact-free cleaning system made of high quality material, like titanium. Based on its technical design, this system is maintenance-free. The sensor is equipped with an automatic detection feature that determines the cleaning interval autonomously. 


Model Description Order no.
IFL 700 IQ Digital ultrasonic sensor with automatic cleaning to measure the sludge level 481200
IFL 701 IQ Digital ultrasonic sensor to measure the sludge level 481201

Technical Data

Measuring procedure Ultrasonic echo measuring
Measuring range 0.4 m - 15 m
Accuracy 0.1 m
Immersion depth min. 5 cm; max. 3 m
Electrical data Nominal voltage 24 VDC, supplied via the IQ Sensor Net


Model Description Order no.
IFL-E Folding or deflector fitting 481206
IFL-RM Railing mount in connection with IFL-E. 481207
IFL-PM Set for mounting on railing cross 481208


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