What can cause a low signal in a 4 to 20 mA loop?
A. High loop impedance
B. Low loop impedance
C. Transmitter shorted
D. Receiver failure
Answer:A
What can cause a low signal in a 4 to 20 mA loop?
A. High loop impedance B. Low loop impedance C. Transmitter shorted D. Receiver failure
Explanation: A low signal in a 4 to 20 mA loop can be caused by a high loop impedance, which can reduce the current flowing through the loop and result in a low reading at the receiver.