Thermocouples in the boiler system are commonly used to measure the temperature of flames or high-temperature gases. In this setup, one end of the thermocouple is placed in the flame of the boiler, while the other end is positioned at the cold end of the boiler. The thermal electromotive force (EMF) between the two ends is proportional to the temperature in the flame. By measuring this EMF, the temperature within the flame can be determined.

In summary, the fire pot system hot spot probe is a highly effective temperature measurement device suitable for various applications requiring high-temperature measurement.