Thermocouple Wire and Compensating Wire

Thermocouple wire or extension grade wire is recommended to be used to connect thermocouples to the sensing or control instrumentation. The conditions of measurement determine the type of thermocouple wire and insulation to be used. Temperature range, environment, insulation requirements, response, and service life should be considered.

Thermocouple wire

Bare thermocouple wire is typically used to construct thermocouple elements. When selecting bare thermocouple wire, keep in mind that a larger diameter conductor will give a longer service life and will have a higher maximum temperature limit. A smaller gauge thermocouple wire will give you a lower maximum temperature limit and shorter service life, but will have a faster temperature response time. These characteristics must be considered when choosing the appropriate bare thermocouple wire for your application.

Thermocouple Compensating and Extension Wire

Thermocouple compensation wire is used to connect the electrode (cold side of thermocouple) with display instrument in order to form a temperature measurement system. The working temperature is -25~200℃. Our plant mainly manufacture type KX, NX, EX, JX, NC, TX, SC/RC, KCA, KCB and WREC compensating wire for thermocouple, and they are used in temperature measurement instruments and cables. Our thermocouple compensating products are all made abiding by GB/T 4990-2010 ‘Alloy wires of extension and compensating cables for thermocouples’ (Chinese National Standard), and also IEC584-3 ‘Thermocouple part 3-compensating wire’ (International standard).