Cast iron electric heater

The compensating conductor is acting as the extension cord of the thermocouple. While the thermocouple is detecting a temperature, the signal must be kept steady. Otherwise, it may cause an extreme error while in temperature detection.  However, please note that though the compensating conductor can keep the thermal starting power of the thermocouple to be stable, when the temperature exceeds 100℃, it will not be able to accurately transmit the signal.