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.

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LAPP Automaatio, which began the EPIC® SENSORS temperature sensors production in 1995, has recently made a significant investment in calibration services. The company had previously offered...

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LAPP Group organizes an international employee event in Helsinki at Bolt Arena from 30 June to 2 July. The football tournament will be held this summer for the 26th time and the volleyball tournament...

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