Emerson’s new flow meter solution to deliver reliable measurement data in challenging applications

Global automation technology leader Emerson has released its latest fully integrated flow meter solution fit to handle tough working conditions.

The Rosemount 9195 Wedge Flow Meter’s unique flexible design is ideal for measuring process fluids with a wide range of demanding characteristics in various heavy industry applications - including oil and gas, renewable fuels, metals and mining, chemicals and petrochemicals.

Released on Tuesday, the devise consists of a wedge primary sensor element, supporting components, and a selectable Rosemount pressure transmitter.

Emerson says it recognises it can be very difficult to measure volumetric flow accurately and reliably in applications where the process liquid is highly viscous, extremely abrasive, prone to plugging, at high temperature…or a combination of these conditions.

Optimising performance while solving several customer problems

In applications with low ambient temperatures, hot process media, or a combination of both, heat tracing is often required, necessitating a supply of electrical power, and creating a maintenance-intensive single point of failure.

Emerson’s Rosemount 9195 Wedge Flow Meter addresses these and other common measurement challenges.

The wedge element itself has no small passages that could plug due to entrained particles, plus it is abrasion-resistant due to the shallow approach angle of the process liquid and the lack of critical sharp edges.

Therefore, highly viscous liquids can be measured accurately due to the linear response of the meter, even at low Reynolds numbers.

The sensor’s operating temperature range is -40 to 1,000 degrees Fahrenheit (-40 to 538 degrees Celsius) - and the meter is available with Emerson’s Rosemount 3051S Thermal Range Expander for measuring hot or viscous liquids, without the need for heat tracing.

Trusted tech designed to reduce lifecycle costs

“The Rosemount 9195 offers a fully assembled design for accurate measurement of liquids that wear or plug other meters,” explained David Wright, Global Product Manager for Emerson’s measurement solutions business.

“This new design solves a range of difficult customer problems by integrating innovative features into a trusted technology.”

The company says that two-way digital connections from the selected pressure transmitter to a host, such as a distributed control or an asset management system, can be made via 4-20 mA HART, WirelessHART, FOUNDATION Fieldbus, Modbus, or BSAP/MVS.

And, depending on the selected transmitter, a wide range of process variables can be sent to host systems for process control and monitoring, diagnostics, and other purposes.

Meanwhile, application flexibility is provided with three sensor/transmitter connection styles.

These comprise Compact, which reduces pipe standoff to address plugging and cleaning concerns and reduces the meter weight by 50%; Flanged, which incorporates a two-inch NPS/DN50 connection, a traditional style used if flushing rings and valve assemblies are required; and Threaded, which incorporates a half inch NPT connection with tubing, ideal for applications where plugging is less of a concern than erosion or wear.