This application note’s primary goal is to provide an easy-tounderstand primer for users who are not familiar with 4-20mA current-loops and their applications. Some of the many topics discussed include: why, and where, 4-20mA current loops are used; the functions of the four components found in a typical application; the electrical terminology and basic theory needed to understand current loop operation. Users looking for product-specifi c information and/or typical wiring diagrams for DATEL’s 4-20mA loop- and locallypowered process monitors are referred to DMS Application Note 21, titled “Transmitter Types and Loop Confi gurations.”

pdf icon MURATA-PS-2009-4-20mA-Current-Loop-Primer.pdf

MURATA PS (2009) 4-20mA Current Loop Primer
%d bloggers like this: