Archive for the ‘Measurement’ Category

How to Setup Plugged Impulse Line Diagnostics

Posted in Pressure on Monday, May 14th, 2018. No comments yet
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Let’s start the week with a nice “how-to” video, How to Configure the Rosemount 3051S Plugged Impulse Line Diagnostic. Emerson’s Megan Wiens shows how to configure the Rosemount 3051S Plugged Impulse Line Diagnostic to help prevent this plugging condition which can lead to reduced measurement accuracy, plant efficiency, and product quality. Megan opens the video […]

Multipoint Piecewise Linearization for Coriolis Flow Meters

Posted in Flow on Thursday, May 10th, 2018. One comment so far
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Yesterday, we looked at calibration of Coriolis mass flow meters in natural gas applications and mentioned piecewise linearization (PWL), but did not delve into it. Let’s do with today’s post. I found a presentation by Emerson’s Tonya Wyatt, Fine Tuning Coriolis Flow Meter Calibrations Utilizing Piece-Wise Linearization. The PWL calibration method basically looks at the […]

Coriolis Mass Flow Measurement and Calibration in Natural Gas Applications

Posted in Flow, Oil & Gas on Wednesday, May 9th, 2018. No comments yet
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In this 27-minute YouTube presentation video, Custody Transfer Measurement and Calibration Round Robin Testing for Natural Gas with Coriolis Meter, Emerson’s Marc Buttler explains Coriolis meter calibration process and Piece Wise Linearization (PWL). His discussion includes Coriolis meter principles of operations, AGA Report No. 11— Measurement of Natural Gas by Coriolis Meter, conversion of mass […]

Reducing Thermowell Dynamic Stress Forces

Posted in Temperature on Friday, April 27th, 2018. No comments yet
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Thermowells are traditionally a circular cylinder installed into the piping to protect the temperature sensors from the flow. From an Emerson whitepaper, Thermowell Calculations: As a process fluid passes around the thermowell, low pressure vortices are created on the downstream side in laminar, turbulent, and transitional flow. The combination of stresses, generated by the static […]

Applying Density Meters in Liquid Hydrocarbon Measurement

Posted in Flow on Friday, April 20th, 2018. No comments yet
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We often discuss aspects of some of the basic measurements in process control—flow, temperature, pressure, level, etc. Some other very important measurements in applications such as custody transfer, liquid interface detection, blending, separating, evaporating and product change—are density and viscosity—due to the changing composition of hydrocarbon liquids. In a whitepaper, Application of Density Meters to […]