Automation 101: Wire a Level Sensor

Monitoring tank and liquid levels is a fundamental task in automation. This video explains how a level sensor using a 4-20 mA signal can give you the data you need.

It also explains how you can get additional data from a sensor that communicates using the HART® (highway addressable remote transducer) protocol, even though the sensor has only two wires.  


More about HART and monitoring levels