Basics of Loop Checks

Basics of Loop Checks

The term “loop” can refer to the entire “control loop” from primary element (sensor) through the transmitter, and controller, to

4-20mA Current Loop Components

Why Use a Current Loop?

A Little Bit of History Before the advent of electronic circuitry, process control was a wholly mechanical endeavor. Facilities used

4-20mA Current Loop

Basics of 4-20mA Current Loop

The 4-20 mA current loop is a very robust sensor signaling standard.  Current loops are ideal for data transmission because