Level Measurement Screening Debris Container

Wastewater Treatment Plant - Intake Area


  • Screenings container, 2.5 x 2.5 x 4.0 m (w x h x d)
  • Medium: solid mixture
  • Bulk cone with undefined angle
  • Ex-Zone 1

Definition of tasks

  • Level detection inscreenings container for overflow monitoring and to control container exchange
  • Contactless measurement
  • Sensors connected directly to PLC without extra transmitter and separation barrier
  • Cost-efficient and reliable solution


  • The contactless intelligent ultrasonic 2-wire sensor Type i-06 Ex was used.
  • Due to the deep container and the mostly steep bulk cones it was necessary to install  2 sensoren with alignment aid at both ends of the container.


  • Direct connection without transmitter or Ex barriers
  • Cost-efficient and reliable sensor

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