Circuit - 4 – 20ma Current Loop Tester - Circuits designed by David A. Johnson, P.E.

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Circuits designed by David Johnson, P.E.
Last Updated on: Wednesday, April 28, 2010 03:53 PM

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4 – 20ma Current Loop Tester
This circuit injects an adjustable current through a wire loop. Using a digital current meter, the current can be adjusted from near zero to over 24 milliamps.

Click on Drawing Below to view PDF version of Schematic

Master Schematic Category List - David A. Johnson, P.E.
AC/AC Converters AC to AC Power Supplies
AC to DC Converters Inverters