A pneumatic differential pressure transmitter has a calibrated range of −100 to +100 inches of water column (” W.C.), and its output signal range is 3 to 15 PSI.
Complete the following table of values for this transmitter, assuming perfect calibration (no error).
Develop a linear equation in the form of y = mx + b that directly relates input pressure (x) to output pressure (y).
Demonstrate how to estimate numerical answers for this problem without using a calculator.
Explain the formula used for the above calculations.
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Credits: Tony R. Kuphaldt