Frequently Asked Questions
How does a 3-wire RTD compensate for lead resistance?
In order to compensate for the lead wire resistance, 3-wire RTDs have a third wire that measures the resistance of the lead wire and subtracts it from
Why is 3 wire RTD better than 2 wire RTD?
The 3-wire RTD arrangement compromises both accuracy and cost. It delivers more accurate temperature data than the 2-wire setup because it compensates for lead wire resistance, but it may not be as accurate as the 4-wire configuration.
What is lead wire compensation in thermocouple?
A thermocouple compensation cable connects a thermocouple to a measurement equipment. The cable must be composed of the same materials as thermocouple; if not the measurement will be false due to undesirable extra thermal voltages. This phenomenon is also known as the Seebeck effect.