Back to Basics {Part 1}: The Fundamentals of 4-20 mA Current Loops
28 April 2017
As major as the 4-20 mA loop standard has become in the process control industry, many do not understand the fundamentals of its setup and use. Not knowing the basics could potentially cost you money when it comes time to make decisions about process display and control. This article will define what a 4-20 mA current loop is, break down the components of a 4-20mA loop, and show the pros and cons of using a 4-20 mA loop.
Source: https://www.predig.com/indicatorpage/back-basics-fundamentals-4-20-ma-current-loops