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I am using ten 4-20MA loop powered transmitters. I want to run all of the loops off of one power supply. The spec on each transmitter is 750 ohms at 20MA insertion loss. The PLC input card states a resistance per channel of 250 ohms. I calculate that each loop has a resistance of 750+250 ohms(1000ohms). How do I figure the amount of current that the DC power supply at 24VDC has to put out? Thanks