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Every month, Control's editors take a specific product area, collect all the latest, significant tools we can find, and present them here to make your job easier. If you know of any tools and resources we didn't include, send them to email@example.com, and we'll add them to the website.
THE FLOW FORUM
The Flow Forum is an online resource center covering best practices in industrial flow measurement. The extensive technical information, specification aids, educational videos and other information posted here for download are complemented by a LinkedIn group, where all are encouraged to ask questions and share experiences with the industrial flow measurement community. You can follow Flow Forum updates on Twitter. The user name is @FlowForum. Subjects include Introduction to Flowmeter Physics; Flow Measurement Devices (operating principles and application of flow instrumentation based on differential pressure, magnetic and ultrasonic phenomena, and materials and corrosion resistance tables); Quality, Safety and Data Integrity Considerations (an overview of ancillary flow instrumentation qualifications, including quality certifications, hazardous area classifications, electrical interference and digital communication protocols); device selection criteria and more. Go to www.controlglobal.com/knowledge_centers/flow_forum/.
PRINCIPLES OF FLOWMETERING
This site offers a detailed examination of the principles and terminology surrounding the topic of flowmetering, including accuracy, repeatability and turndown. Also included is a basic insight to Bernoulli's Theorem. The direct link is at http://tinyurl.com/87erad7.
FLOW MEASUREMENT VIDEOS
This link takes the user to a collection of videos on various flowmeter subjects produced by ABB. The topics covered include differential pressure, variable-area, electromagnetic, mass flow, and vortex and swirl flowmeters. All are available on YouTube at http://tinyurl.com/d6reoao.
For those new to Coriolis flow measurement technology, here is an online tutorial, Tutor, covering the basics of Coriolis theory and the capabilities of Coriolis flowmeters. Tutor explains the physical components of a Coriolis sensor and transmitter, how a Coriolis flowmeter measures mass flow, how a Coriolis flowmeter measures volume flow, how a Coriolis flowmeter measures density. Tutor is available in 10 languages, and can be be visited by clicking on http://tinyurl.com/866zoh7.
This white paper from Invensys' Foxboro division covers the operating principles of vortex-shedding flowmeters, how to calculate mass flow and volume, flowmeter construction, selection, installation and configuration and more. The direct link is at http://tinyurl.com/89bwvl6.
Invensys Operations Management
This site on P&ID drafting contains numerous deep links to information on all kinds of instrumentation, including that for measuring flow. Links cover flow-related subjects such as flow measurement principles, types of flowmeters, orifice plate theory, flowmeter piping requirements and weigh feeder principles. Formats include videos, slide shows, tutorials and white papers. Direct access to the links is at http://tinyurl.com/6ws4nf2.
P&IDs—from the Drafter's Perspective
FLOW FOR SMALL LINES OR BATCHES
When selecting a flow sensor, flowmeter or flow switch for your small line or batch process, one of the first considerations is the process media: air, gas, steam or liquid. This white paper discusses the flow measurement and control advantages/disadvantages in different application technologies. It's free, but registration required. The direct link is at http://tinyurl.com/burgooa.
Fluid Components International