current loop

What is Live Zero in 4-20 mA Current Loop ?
  • Basics

What is Live Zero in 4-20 mA Current Loop ?

The popular myth about 4-20 mA, debunked. A lot of C&I practitioners (including me) has long believed that the establishment…

3 years ago
  • Control Systems

Basics of Loop Checks

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

3 years ago
  • Control Systems

Loop Check of 4-20mA or HART Transmitters

Do you know about Loop Check of 4-20mA or HART Transmitters or Instruments Loop check procedure ? This article provides the…

3 years ago
  • Control Systems

DCS Controllers to Output Current Loops

The simplest form of 4-20 mA current loop is the type used to represent the output of a process controller,…

5 years ago
  • Control Systems

Why Use a Current Loop?

4-20mA current-loop circuit have four individual elements: a sensor/transducer, a voltage-to-current converter, loop power supply and a receiver / monitor.

6 months ago
  • Basics

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…

5 years ago