Flow meters by operating principle — magnetic (conductive fluid), ultrasonic (Doppler, transit-time), Coriolis (mass flow), thermal (gas), vortex (steam, gas), positive-displacement (oil). Endress+Hauser Promag/Promass, Krohne Optimass/Optiflux, Siemens MAG/SITRANS, ABB CoriolisMaster and Yokogawa Rotamass lead process.
Flow Meter
Flow Meter
Flow meters split into magnetic, ultrasonic, Coriolis, thermal, vortex and positive-displacement. Endress+Hauser Prom...
Flow meters split into magnetic, ultrasonic, Coriolis, thermal, vortex and positive-displacement. Endress+Hauser Promag/Promass, Krohne Optimass/Optiflux, Siemens MAG/SITRANS and ABB CoriolisMaster lead process.
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FAQ
Q Coriolis high-accuracy principle?
A
Coriolis measures mass directly (no density compensation), accuracy 0.1-0.5%. Suits custody transfer, blending and dosing/filling. But 5-10x cost of magnetic — only on high-value processes.
Q Clamp-on ultrasonic flow meters?
A
External mount, non-invasive, no shutdown — suits retrofit and temporary measurement. Accuracy 1-3% (vs in-line 0.5%). Krohne UFM and Siemens FUS are clamp-on representatives.
Q Open-channel flow?
A
Hydraulic and wastewater main lines use weirs (V-notch, rectangular) + radar level back-calculation. Accuracy 5-10%. E+H Prosonic and Siemens MultiRanger are industry solutions.