What does 2-, 3- and 4-wire connection mean?

A resistance temperature detector (=RTD) can be connected with 2, 3 or 4 wires. The 2-wire connection needs only 2 wires, but then the measuring electronics is measuring also wire resistance, which is not desirable. Using extra wires for compensating the cable resistance gives more precisely the desired resistance of the RTD itself. The 4-wire connection is the most accurate one.

News

New name for the temperature sensors.

Read more

SKS Group signed an agreement with German LAPP Holding and Swedish Axel Johnson International regarding an acquisition of companies that belong to SKS Group.

The board of SKS Group has confirmed the...

Read more

Data collected from processes and machinery can only be as accurate as the measurements and sensors used. As a result, Lapp Automaatio approaches the industrial IoT particularly from the perspective...

Read more
News archive

Contact