What is the purpose of a loop repeater in a 4 to 20 mA loop?
A. To measure current in the loop
B. To display the process variable
C. To provide electrical isolation
D. To extend the range of the loop
Answer:D
What is the purpose of a loop repeater in a 4 to 20 mA loop?
A. To measure current in the loop B. To display the process variable C. To provide electrical isolation D. To extend the range of the loop
Explanation: A loop repeater is a device used to extend the range of a 4 to 20 mA loop beyond the maximum distance that can be achieved with a single loop.