A Coriolis flow meter directly and continuously measures mass flow (as opposed to measuring volumetric flow), a fluid parameter that is not temperature dependent. Therefore, the Coriolis meter does not require a correction for changes in fluid variables such as temperature, pressure, viscosity and density.
Coriolis flow meters are known for accuracy of measurement readings, which can approach 0.05% of mass flow. Despite being relatively expensive, the Coriolis meter has high reliability (due to an absence of moving parts in the flow path) resulting in a relatively low cost of ownership. Furthermore, high accuracy can help to increase operating efficiency and save on production costs. Coriolis flow meters are typically used for clean liquids and gases flowing at medium to high velocity. Coriolis meters are especially appropriate for measuring gases because gases are much more affected by temperature and pressure than are liquids.
Coriolis Meter Advantages
• Measure mass flow rate directly
• Suitable for applications where temperature and pressures fluctuate
• No obstructions in the fluid path
• Low cost of ownership
Coriolis Meter Limitations
• May not be suitable for viscous fluids as the pressure drop increases with fluid viscosity
Coriolis flow meters are suitable for a variety of processes requiring mass flow measurement including:
• Monitoring concentration and solids content
• Measurement of slurries
• Blending ingredients and additives
• Metering natural-gas consumption
• Pharmaceutical, cosmetic, and biochemical industries
• Custody transfer
• Catalyst addition processes
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