Right after the thermocouple with compensation lead connection

Understand instrument friends should know, thermocouple production material are relatively expensive, because need a lot of application to some precious metals, and precious metals itself is a valuable materials. Thermocouple in the distance between the instrument and temperature measuring point is relatively far, but many manufacturers in order to save manufacturing of materials and reduce production costs, many manufacturers have in trying to adopt compensating conductor instead of the free end of thermocouple to successfully extended to the stability of the control room, then and instrument terminals connected to each other.

but this here small make up need to give the thermocouple manufacturers alike, because of the thermocouple compensating lead wires play a main role is outspread, the cold end of thermocouple can be smoothly connected to control indoor instrument, so it will not be to eliminate the cold end because of the change of the temperature of any effect, also won't have any compensation effect, this you must understand. Although compensation conductor is effectively solved the problem of the extension, but when we use or need some other way of correction to the cold end temperature for appropriate compensation. And after we identified with the compensation wire, it remains to be seen whether model match each other, when the connection is never wrong polarity, pay attention to the thermocouple and the compensating conductor can't connect the temperature is too high, basic is no problem as long as no more than one hundred degrees Celsius.