While calibrating a 4-20 mA electronic, or a 3-15 PSI pneumatic controller, with a process output of 50-250 PSI, what is the controller span/range you are dealing with?

Correct Answer: Option B — Output process span is 200 PSI.

The span of a controller is defined as the difference between the upper and lower range values of the process variable. For a process output range of 50 PSI to 250 PSI, the span is calculated as 250 minus 50, resulting in a total span of 200 PSI.