Open Channel Flowmeters

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This type of flowmeter is designed for accurate, reliable flow measurement in large pipes and open channels. In various configurations, measures flow in pressurized pipes, open channels, and in pipes and conduits ranging from partially full to surcharged. One flowmeter can be configured to measure flow in up to 4 pipes or channels. When used as a 4-parallel-path or 8- crossed-path flowmeter on pressurized pipes, flowmeter can measure flow to within ±0.5% of actual flowrate. Flow in pipes of 24 in. (600mm) to 50 ft. (15m) in diameter and channels to 600 ft (180m) wide can be measured.

Transducers can be selected for a variety of applications, including:

  • Exposed steel pipes
  • Concrete pipes
  • Buried or encased pipes
  • Pipes with external access only
  • Pipes that cannot be dewatered for installation
  • Class I, Div 1 / Zone ∅ hazardous locations