In order to increase production rate, a reactor setpoint was increased from 160 psig to 19...

In order to increase production rate, a reactor setpoint was increased from 160 psig to 190 psig. The reactor pressure transmitter was recalibrated from 0–200 psig to 0–300 psig. What is the percent span for the old and new setpoints?

a. 50%

b. 63%

c. 80%

d. 90%

Remember: In an operating unit, when a transmitter is recalibrated, the scale must be changed on the controller as well as the controller retimed.