Channel Networks - Stormwater Treatment Facilities

Discharge Measurement

Flow Measurement at Multi Chamber Overflow
Flow Measurement at Multi Chamber Overflow
Flow Measurement at Multi Chamber Overflow


  • Rectangular channel, 6 m width
  • Part filled
  • Simultaneous overflow from several chambers into one common channel
  • Short calming section upstream of measuring point

Definition of tasks

  • Detection of overflow volumes to recipient
  • Readings shall be transmitted to control system via analog and digital outputs
  • High accuracy at varying overflow volumes per chamber
Installation Principle
Installation Principle
Installation Principle


  • Providing highest measuring dynamics and accuracy, a cross-correlation-based system Type NivuFlow 750 M3 has been used. By using 3 flow velocity sensors simultaneously it is possible to detect and to consider existing asymmetric flow conditions.
  • The sensors have been installed on the channel bottom. Protective metal sheets prevent the sensors from being damaged.


  • Low installation costs
  • Complies with requested accuracies by utilising 3 velocity sensors
  • Maintenance-free

Used products

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