I recently purchased the 1-Channel 4-20mA Current Loop Receiver (click) and had a quick question on how i’m supposed to wire this up to an existing 4-20ma loop to read sensor data.
The existing loop has a pt100 transmitter and a 20-420C 3-wire RTD. When I put a multimeter in series i get the expected 5.13ma at room temperature so i know the loop is working properly. To read the loop current with the current loop receiver i tried putting it in series after the pt100 but I am getting a very low current reading, 0.041. How should this be wired?
FYI, i’m using an Adafruit Feather Huzzah and following the tutorial here.