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Posts Tagged ‘DP flow’

Avoiding Cold Climate Measurement Challenges

Posted in Level on Wednesday, January 7th, 2015. 3 comments so far
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For those here in North America, there is a good chance you’re braving extremely cold weather today. The Weather Channel captures the situation well in a post, Arctic Cold Blast Continues; Wind Chill Alerts For Over Half U.S. Population. And Canada makes this appear balmy. Back at the Emerson Exchange conference in Orlando this past […]

How to Videos on Installing DP Flowmeters

Posted in Flow on Friday, October 17th, 2014. One comment so far
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Differential pressure (DP) is one of the most used and proven technologies for flow measurement. With averaging pitot tube (APT) technology, the impact pressure is sensed on the front of the device as the flow initially approaches the obstruction or bluff body which creates the pressure difference. For the most accurate measurement possible, it is […]

How Differential Pressure Flow Works

Posted in Flow on Wednesday, September 3rd, 2014. One comment so far
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One of the most proven ways to measure flow rate is through differential pressure measurement. By creating an obstruction in the flow of fluid, a difference in pressure is created upstream and downstream of the obstruction. In this 3:12 educational YouTube video, How Differential Pressure Flow Works, Emerson’s Rosemount Measurement team illustrates how differential pressure […]

Measuring Flow on Fluid Streams

Posted in Flow on Thursday, April 17th, 2014. One comment so far
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According to an ISA presentation given by Process Automation Hall of Fame member, Greg McMillan, the most common measurement device is the differential pressure (DP) transmitter. It is most commonly used in level and flow measurement. Measuring the differential pressure across an orifice plate is the common way to measure flow. Wikipedia provides a quick […]

Avoid Spurious Shutdown in SIS Loop by Unleashing Advanced Diagnostics via THUM & AMS

Posted in Wireless on Thursday, April 3rd, 2014. One comment so far
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Emerson’s Burcu Karakulak and Norbert Nagy shared a story on how diagnostics from IEC 62591 WirelessHART devices helped avoid compressor spurious shutdowns. Their abstract: …compressors in their facilities… compressors have 3 stages where dP flow is measured at each stage using impulse pipelines. Each dP is part of a safety loop & will shutdown the […]