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Thank you for your suggestion I will give it a go. Here is a picture of what I have put together so far. I am using a Milliamp Calibrator to generate the 4-20mA signal for testing. At the moment I am using a 220 ohm resistor as it is all that I have on hand but I will swap it out for the 60 ohm...

I am trying to connect with the output from an industrial pressure transmitter which outputs a signal in the 4-20mA range. I know that I will need a 250 ohm resistor connected in order to retrieve a reading on the analog pins, but I am not entirely sure how to wire the whole circuit. I am using...