Control System

The need for automatic controls

The subject of automatic controls is enormous, covering the control of variables such as temperature, pressure, flow, level, and speed.

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

Alarms to Annunciator

Basics of Alarms and Trips

Alarm/Trip : Something happens—a signal peaks or falls—and you need to know. A limit alarm trip can trigger the response