Open channel flow monitoring is a method of determining liquid volumetric flow rates in applications that rely on moving liquids through open conduits rather than enclosed pipes. Examples of these types of applications include wastewater processing effluent flows, managing water usage in agricultural irrigation channels, and monitoring flows through storm water systems. Traditionally, this type of measurement has been performed via the use of flumes or weirs in conjunction with a liquid level sensor. In recent years, global environmental concerns and increased scarcity of freshwater resources has necessitated more accurate, reliable and cost effective methods of Open Channel Flow Measurement. Two such improved methods offered by SmartMeasurement include the advanced transit time ultrasonic Area-Velocity measurement technique and the low-cost Doppler ultrasonic method. Learn more About Coriolis Flowmeters
Environmental concerns have spawned tremendous growth in the market for open channel flow meters that make use of an Area Velocity Measurement, or AVM technique. These instruments are widely used in applications such as monitoring water management systems, storm water run-off, irrigation flows, hydroelectric generating penstocks, and industrial discharges. SmartMeasurement offers two flow meters that make use of an AVM technique; the transit-time ALSONIC-AVM and the Doppler ultrasonic ALSONIC-DAVM.
Installation channel walls
Clean or dirty channels, rivers etc.
Sizes 3'-130' (1-40 m)
Ambient, transducers can withstand temperatures of 248°F (120°C)
0.5-1%
Channel walls with multi-transducers four paths-cross, Flow & Level (separate), Alignment using laser pointer
Two or four channels, graphic display, datalogger,analog/ digital inputs & outputs
Open channel; clean and dirty water
Installation fitted inside sewer line
Clean or dirty Sewers
Sizes 6''-48" (100-1200 m)
Ambient, transducers can withstand temperatures of 248°F (120°C)
0.5-1%
Fitted inside sewer line
Three or four channels, graphic display, datalogger, analog/ digital inputs & outputs
Clean or dirty sewers
Installation bottom of channel
Wastewater, sewers, dirty liquids ≥ 1% ≤40% particulates
Sizes 6"-240" (150-6000 mm)
Ambient, transducers can withstand temperatures of 248°F (120°C)
2-5%
Single transducer with both flow and level with mounting ring at bottom of channel
One transducer for both flow and level. Available in fixed and portable system
Economic open channel monitoring, mainly used for sewers and surveying