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MEASUREMENT AND INSTRUMENTATION

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FIGURE 49 Gravimetric feeder using loss-in-weight principle. (Schenck Weighing Systems.)

various manufacturers for specific products and users’ experiences in different installations to truly determine their applicability to measurement situations. The family of level measurement systems can be divided into many categories: liquids or solids level measurement, point or continuous level measurement, electromechanical or electrical/electromagnetic level measurement, or contacting or noncontacting /nonintrusive level measurement. For this subsection the focus is on the technologies of level measurement so the information will be presented in the following format: General considerations in level measurement technology selection Density and viscosity Chemical composition Ambient temperature Process temperature Process pressure Regulated environments Process agitation Vapor, mist, and dust Interfaces and gradients

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Mechanical BE (Measurement and Instrumentation)  

Mechanical BE (Measurement and Instrumentation)

Mechanical BE (Measurement and Instrumentation)  

Mechanical BE (Measurement and Instrumentation)

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