RTDs are completely passive sensing elements, requiring the application of an externally-sourced electric…
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RTDs are completely passive sensing elements, requiring the application of an externally-sourced electric…
Textbook
Electromechanical relays may be connected together to perform logic and control functions, acting as logic…
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The final step in treating wastewater before releasing it into the natural environment is to kill any harmful…
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A number of different sensors used in instrumentation generate DC voltage signals proportional to the process…
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Classical mechanics (often called Newtonian mechanics in honor of Isaac Newton) deal with forces and motions…
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Instrument technicians should not have to concern themselves over the programming details internal to digital…
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Flow, by definition, is the passage of material from one location to another over time. So far this chapter…
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The very purpose of physics is to quantitatively describe and explain the physical world in as few terms as…
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As a general rule, high achievement only takes place in an atmosphere of high expectations. Sometimes these…
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It is possible to convey electrical power and communicate analog information over the same two wires using 4…
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Thermodynamics is the study of heat, temperature, and their related effects in physical systems. As a subject,…
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Control strategies such as cascade, ratio, feedforward, and those containing limit and selector functions can…
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A positive displacement flowmeter is a cyclic mechanism built to pass a fixed volume of fluid through with…
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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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Creative Commons Attribution 4.0 International Public License By exercising the Licensed Rights (defined…
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(Will be addressed in future versions of this book)
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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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Sometimes we encounter a diversity of instrument signal standards in one control system. Such is the case with…
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Negative feedback systems, in general, tend to cause confusion for those first learning their fundamental…
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“Radio” systems use electromagnetic fields to communicate information over long distances through…
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