Question

How is a 3 wire 4-20ma pressure transmitter connected electrically arduino

Answer 1

Answer:

2-wired RTDs are cheaper than 3-wired ones. Transmitters are either 2-wire or 4-wire. 2-wire transmitter relies on loop power from the receiving device, usually 24 VDC, to operate the transmitter interface, tranduce, characterize, and send the signal back to the receiving device.

Answer 2

Answer:

All the transmitter are all of 2 to 4 wired machines

hope it helps you