a certain temperature controller has a range of 1500 degrees

a certain temperature controller has a range of 1500 degrees Fahrenheit to 2200 degrees Fahrenheit.

3. A certain temperature controller has a control range of 1500F to 2200oF. t is controlling right on a set point of 1690°F with the control valve 35% open. The proportional band is 28%. At what temperature will the valve go 100% open?

Solution

Temperature at valve go to 100% open is given by

(2200-1500)*1*(1-0.28)+1500 = 504+1500 = 2004 ⁰ F