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Remote Multi-Point Temperature Measurement Using 3-wire Resistance Temperature Detectors

Sukes Maiti1, Saibal Pradhan and Susanta Sen

Temperature is an important parameter for the operation and control of any process plant. Also the number of temperature points is, perhaps, the highest amongst all the process variables. Thus often multiple temperature points in similar applications are monitored together. Here in this paper, a multi-point temperature measurement scheme is described using 3-wire Resistance Temperature Detectors (RTD). The design includes Lead Wire Compensation for accurate and consistent measurement of temperature from remote place.