What is the purpose of a loop-powered display in a 4 to 20 mA loop?
A. To provide a voltage reference for the transmitter
B. To measure the current flowing through the loop
C. To convert the current signal to a voltage signal
D. To provide a visual indication of the current in the loop
Answer:D
What is the purpose of a loop-powered display in a 4 to 20 mA loop?
A. To provide a voltage reference for the transmitter B. To measure the current flowing through the loop C. To convert the current signal to a voltage signal D. To provide a visual indication of the current in the loop
Explanation: A loop-powered display in a 4 to 20 mA loop is used to provide a visual indication of the current in the loop.