Higher accuracy in batch filling applications

Breakthroughs enable unprecedented Coriolis flowmeter accuracy when batching from an empty pipe state, or when process fluids contain transients such as entrained gas, bubble flow or slug flow

New breakthrough technology announced by Emerson Process Management, delivers next generation Coriolis flow measurement performance from Micro Motion meters.

With next generation MVD (multi-variable digital) technology and improved sensor design, Micro Motion Coriolis meters can handle an even wider range of entrained gas measurement challenges.

Identifying and measuring two-phase (gas and liquid) flow is difficult for flow measurement devices, often producing large metering error or requiring an additional investment in air eliminators or flow conditioning devices.

Micro Motion technology solves this process dilemma by accurately measuring flows with entrained gas that include bubble flow, slug flow, and empty-full-empty batch applications with increased processing speeds enabled by new MVD technology and unique Coriolis sensor design.

"A number of Coriolis measurement problems can be traced to entrained gas issues," commented Tom Moser, president of the Micro Motion division of Emerson: "Just determining that entrained gas is the culprit often takes users many hours of root cause analysis, not to mention quantifying the degree to which the process is affected, and figuring out which actions to take.

We are delighted to introduce technology and best flow measurement performance capability even in tough entrained gas conditions".

While other Coriolis flowmeters have attempted to solve the entrained gas problem, they have fallen short due to their inability to accurately measure process variables during two-phase flow conditions.

Building on the advantages of the native design of Micro Motion Coriolis meters, transient flow measurement capability is one of the next generation enhancements available with new Micro Motion meters enabled by next generation MVD technology.

Patented enhancements include faster processing speeds enabling the meter to uniquely respond and produce correct measurements during rapidly changing process conditions (e.g, at the onset of a gas slug), and specialised algorithms and processing to handle the varied signals received during transient flow measurement.

By further isolating the sensing element from external effects, Micro Motion meters are able to sustain a more accurate signal even in the presence of higher flow noise caused by transient flow situations.

The next-generation Micro Motion Coriolis technology significantly improves custody transfer metering and flow measurement applications in the manufacture of such products as film emulsions, beer (wort), glucose, liquid fertilisers, soaps and lotions, hair care products, phenols, dairy products, polyethylene, well heads, and ethylene oxide.

Micro Motion Coriolis flowmeters are part of the broad range of intelligent, digital field devices from Emerson that power the PlantWeb digital plant architecture.

Further cost savings, increased plant availability, and enhanced safety and environmental compliance are achieved when the flowmeters are integrated into the PlantWeb architecture.

Back to top