Flowmeter Selection: mass_flow
Flowmeter selection guide covering 16 meter types across 6 categories (differential_pressure, velocity, mass_flow, electromagnetic, positive_displacement, variable_area, open_channel) — each record documents accuracy (% reading or full-scale), rangeability, pressure drop class, fluid compatibility, installation straight-run requirements, and relative cost class
| meter category | meter type | accuracy basis | accuracy pct reading (%) | cost class | cost relative | fluid compatibility | fluid phase | fluid restrictions | installation notes | measurement principle | moving parts | notes | pressure drop class | pressure drop notes | rangeability | rangeability num | requires power | temp limit C max (degC) | temp limit C min (degC) | typical applications | typical pipe size in max (in) | typical pipe size in min (in) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mass_flow | coriolis_mass | percent_of_reading | 0.1 | high | 5 | Liquids, gases, slurries - direct mass and density measurement | liquid|gas|slurry | Limited to approx 8-in bore economically; high cost for large diameters | Mounting orientation flexible; no straight-run required; in-line installation | Coriolis-effect resonance frequency shift of vibrating tube | yes | Most accurate commercially available; direct mass flow and density; OIML R 117; Micro Motion or Endress+Hauser | low | 1 to 5 pct of line pressure (tube bend restriction) | 100:1 | 100 | yes | 200 | -200 | Custody transfer hydrocarbons, pharmaceuticals, batching, LNG, high-value fluids | 8 | 0.1 |
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