“Radio” systems use electromagnetic fields to communicate information over long distances through…
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Fieldbus devices require far more attention in their initial setup and commissioning than their analog…
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One of the marks of a successful problem-solver is a habit of applying general principles to every new problem…
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In the United States, the ANSI and IEEE organizations have standardized a set of numerical codes referring to…
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Disturbances in the liquid tend to complicate liquid level measurement. These disturbances may result from…
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By definition, a source is a device delivering energy into a system, while a load is a device extracting…
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A different strategy for controlling the flow of fluid is to insert a rotary element into the flow path.…
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Shown here is a partial listing of principles applied in the subject matter of this chapter, given for the…
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To summarize some of the key points and concepts for teaching: Do not waste class time transmitting facts to…
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Phasors are to AC circuit quantities as polarity is to DC circuit quantities: a way to express the…
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Although it seems each model of PLC has its own idiosyncratic standard for programming, there does exist an…
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Control valves are supposed to deliver reliable, repeatable control of process fluid flow rate over a wide…
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A fluid is any substance having the ability to flow: to freely change shape and move under the influence of a…
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Learning from reading printed text is a kind of problem-solving activity it is own right. The problem is how…
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Like so many other industrial data networks, FOUNDATION Fieldbus is an “unswitched” or…
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The efficient identification and correction of instrument calibration errors is an important function for…
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To show a practical process example, let’s examine three diagrams for a compressor control system,…
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A variety of technologies exist to measure the quantity of stored material in a vessel. For liquid…
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Coy, John J. et. al. (December 2012) Sampled graphic illustrations from his NASA Reference Publication…
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Atom: the smallest unit of matter that may be isolated by chemical means. Particle: a part of an atom,…
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A very common method for directly controlling low flow rates of fluids is to use a device known as a metering…
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