Coriolis meters measure flow in paint-filling machines

摘要

A nationally known paint manufacturer has recently switched to using machines from Pneumatic Scale Corp. (www.pneumaticscale.com) equipped with Coriolis flow meters from Micro Motion (www.emersonprocess.com/ micromotion) to fill cans of paint. A Coriolis meter measures the mass of the product flowing through it, whether running liquids or gases. This is an absolute measurement of quantity that is unaffected by changing fluid properties, such as viscosity or density. In addition, changing fluid process conditions, such as temperature or pressure, do not introduce additional measurement uncertainty. Coriolis meters eliminate the need for density-compensation-correction systems to adjust the actual measured volume flows to standard, or reference conditions, because a direct mass measurement has no need for density compensation. In fact, the multivariable measurement principle of Coriolis technologies also provides a measure of fluid density as a secondary output.