Online Information on the Level

This Month, Our Editors Search the World Wide Web for the Latest Resources on Level Measurement

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LEVEL DETECTION
"Unraveling the Complexities of Level Detection" explores the difficulties and challenges of measuring level in a container. Many factors must be considered when determining an application's sensing needs. The material used for the container, the media being measured and the environmental conditions are only some of the factors that must be taken into account when choosing the correct measurement tool. This free, downloadable, nine-page PDF walks readers through some of these considerations. The direct link is at bit.ly/18zdXWD,
TURCK
763-553-7300

GO ULTRASONIC
Ultrasonic level is one of the five non-contacting continuous level measurement technologies, and the one that is most often misused or misapplied. In this article, Control's editor in chief, Walt Boyes, explains how to use it the right way. The direct link is at http://bit.ly/1a2JikH.
Control

DIFFERENTIAL PRESSURE LEVEL MEASUREMENT
Hydrostatic level measurement via differential pressure is an option for direct mounting or mounting with remote seals on tanks and vessels. These instruments can handle extreme chemical and mechanical loads as well as electromagnetic interference. They are widely applied in chemical and petrochemical industries. This short video goes through the basics of this level measurement technique. The direct link is at http://bit.ly/1azuD38.
YouTube

THE GREEN BOOK ON LEVEL
The 8th edition of The Green Book, Flow, Level and Environmental Handbook & Encyclopedia is now available. It has more than 1300 pages of the latest information on flow, level and environmental products from flowmeters and valves to water test equipment, and a new sanitary temperature, pressure and flow product section with technical references. This free, hardbound handbook has a technical reference section with an overview on flow measurement, and aids in selecting a complete flow measurement system with unit conversion tables and a glossary. Go to www.omega.com/literature/greenbook8 for your copy.
Omega
888/826-6342

GUIDE TO LEVEL MEASUREMENT
This free, 318-page ebook, The Engineer's Guide to Level Measurement, 2013, was prepared by the experts at Emerson Process Management, and covers the basics of various level measuring technologies, including guided wave radar, tank gauging and ultrasonic. There are also chapters on safety loops, approvals and certifications, and a bibliography. The direct link is at http://bit.ly/HqZuGM,
Emerson Process Management

STEAMY LEVELS
"Methods of Detecting Water Level in Steam Boilers" covers the application of level controls and alarms, plus it has  an overview of different level detection methods, including float-type controls, conductivity probes, capacitance devices and differential pressure cells. The direct link to the article is at http://bit.ly/1gcyZD2.
Spirax Sarco

SOLIDS ON THE LEVEL
Measuring solids in large bulk containers is complicated. This free, 26-page PDF white paper discusses the application considerations required when you need to measure the level of material continuously, or simply determine on a continuous basis how much stuff you have in your vessels. Issues covered include the type of material being measured, its density, the type of storage vessel used, filling/discharge systems, environmental issues and the types of level sensors available and their advantages and disadvantages. The direct link is at http://bit.ly/17XTqeV.
Blue Level Technologies

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