Question

How does a 4/20 mA loop work?

Answer 1

We need to calculate the resistance to create the 4 mA current. To create the 4 mA signal we need a resistance of 24V/ 4mA = 6000 ohm. The resistance of Rm is 250 ohm, the series resistance is 820 ohm, so the potentiometer needs a resistance of 6000 - 820 -250 = 4930 ohm.Aug 20, 2012');})();(function(){window.jsl.dh('21','

4-20 mA potentiometer & Generator - DIVIZE industrial automation

https://www.divize.com \u203a techinfo \u203a 4-20ma-potentiometer

https://www.divize.com \u203a techinfo \u203a 4-20ma-potentiometer

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How to Wire 4-20mA 2 Wire Current Loops and 4 Wire ... - YouTube

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Then we're going to give it back out of the negative our meter to the negative of the power supply.MoreThen we're going to give it back out of the negative our meter to the negative of the power supply. And that will make our current loop. This is by far the simplest type of instruments.