How can an instrument technician determine if a valve positioner is functioning properly?
A. Check the valve’s position and movement
B. Monitor the process variable to determine if the valve is regulating flow properly
C. Inspect the positioner for physical damage or wear
D. All of the above
Answer:D
How can an instrument technician determine if a valve positioner is functioning properly?
A. Check the valve’s position and movement B. Monitor the process variable to determine if the valve is regulating flow properly C. Inspect the positioner for physical damage or wear D. All of the above
Explanation: To determine if a valve positioner is functioning properly, an instrument technician can check the valve’s position and movement, monitor the process variable to determine if the valve is regulating flow properly, and inspect the positioner for physical damage or wear. By identifying any issues with the positioner, the technician can take corrective action to restore proper valve function.