... with the fixed resistor and range resistor R1, and the branchwith the RTD and range resistor R2. As the electrical resistance of the RTD changes, the voltageat points X and Y changes. The millivoltmeter ... B., Instrumentation and Control of Nuclear Reactors, ILIFFE Books Ltd., London.Wightman, E.J., Instrumentation in Process Control, CRC Press, Cleveland, Ohio.Rhodes, T.J. and Carroll, G.C., ... B., Instrumentation and Control of Nuclear Reactors, ILIFFE Books Ltd., London.Wightman, E.J., Instrumentation in Process Control, CRC Press, Cleveland, Ohio.Rhodes, T.J. and Carroll, G.C.,...