Industrial Instrumentation & Control,2e

Industrial Instrumentation & Control,2e

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The automatic portion of this water control circuit is presented in the top half ( PQRST) of the ladder diagram. ... Figure 16.7(a) shows that there is high-level and low-level monitoring as well as pressure control for the pressure tank and low-level monitoring of the storage tank. ... The operation of the pump is also governed by the low-level sensors on the pressure and storage tanks (LSL 102, and LSL 103).

Title:Industrial Instrumentation & Control,2e
Author:S. K. Singh
Publisher:Tata McGraw-Hill Education - 2003-04-01


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