4 ? 20ma Current Loop Tester

2016-01-19 07:16  
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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

Circuit 4 - 20MA Current Loop Tester designed by Dave Johnson, P.E. (Nov 2, 2004)





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