Flow Rate Monitoring on Pumps

Channel Networks - Pump Stations and Lifting Facilities


  • Cast iron pipe DN 200
  • Full filled
  • Old existing line (condition unknown), installed pipe system cannot be modified

Definition of tasks

  • Flow rate monitoring of feed pump to detect clogging and dry run
  • Tendency monitoring of feed pump to detect wear and tear
  • Optimisation of repair and maintenance intervals
  • No high accuracy required (permissible error higher than 10 %)
  • Good reproducibility


  • A clamp-on) Doppler sensor Type NivuGuard 2 was used.
  • The sensor provides a flow-proportional 4-20 mA signal as well as a digital error message ­signal directly to the telecontrol substation installed on site.


  • Direct connection to the PLC available on site (no transmitter required)
  • No modification of old pipeline necessary

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