A thermocouple is a sensor used in conjunction with an indicator or programmable controller for measuring the temperature of a kiln. It consists of two dissimilar metals, joined together at one end. When the junction of the two metals is heated or cooled a voltage is produced that can be converted to temperature.

What are the different thermocouple types?

Thermocouples are available in different combinations of metals or calibrations to suit different applications. The three most common calibrations used for ceramics are K, R and S. K type is commonly used for temperatures up to 1100°C and R and S for temperatures up to 1300°C. R type has been the standard for UK ceramics, whereas S type is normally found on kilns being used in Europe. All our thermocouples are supplied with the sensors shielded in a porcelain sheath with the exception of the “K” type which is within a mineral insulated metal sheath.