Fifteen technologies · thirteen reference pages
Understand the measuring principle.
Technology, installation style, application and communications are independent choices. A smart meter can also be a mechanical meter.
Single-jet
Small clean-water consumption points
mechanicalMultijet
Domestic and small commercial consumption
mechanicalPositive displacement
Clean-water low-flow consumption
mechanicalWoltman / Woltmann
Bulk water in full pipes
mechanicalPropeller / irrigation mechanical
Application-qualified agricultural pipelines
combined mechanicalCompound
Wide fluctuations between low and high demand
electromagneticElectromagnetic, full pipe
Conductive liquid in a full measuring tube
electromagnetic with levelElectromagnetic, specialist partly filled pipe
Qualified partial-fill water/wastewater applications
ultrasonic transit timeInline transit-time ultrasonic
Application-qualified water measurement
ultrasonic installation classClamp-on ultrasonic
Non-invasive surveys and suitable permanent installations
ultrasonic dopplerDoppler ultrasonic
Liquids with suitable acoustic reflectors
velocity and wetted areaArea–velocity system
Open channels and partly filled pipes
hydraulic primary device and levelFlume/weir and level system
Suitable open-channel flow measurement
system not single flow principleThermal energy / BTU meter
Heating/cooling energy
application specificSpecialist process flowmeter
Coriolis, turbine, vortex or differential pressure for engineered duties
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See the physics behind the reading.
Explore flow, moving parts and sensing signals with eight interactive experiments.
Explore how meters work →