S -type thermocouple temperature sensor: platinum/10% positive, and a pure platinum negative electrode.
 
The temperature range of the S type is 0-1450 ° C (32-2642 ° F). The positive color is black and the negative color is red. The use of precious metals is usually used for high temperature measurement and control, especially for 1093 ° C (2,000 ° F) and above.
 
Generally speaking, the combined thermocouple used by platinum and platinum alloy, gold or crickets is considered the most copy of all types of all types. They have resistance to the oxidation in the air, and because of their high melting points, they can use very high temperature. Due to its high stability, the S -shaped thermocouple temperature sensor is used as a calibration standard for the gold melting point (1064.43 ° C).
 
The typical applications of S -type thermocouple temperature sensors include: heat treatment and control sensor, semiconductor industry, glass manufacturing, black metal and non -ferrous metals
 
The precious metal sensor is very expensive. The S -type thermocouple temperature sensor must eliminate element hydrogen, sulfur and other atomic pollutants. If these pollutants are not completely excluded, the failure of major calibration drift, brittleness, and thermocouple wires will occur. In addition, some elements must be excluded as a catalyst, and the thermoelectric puppet line must be excluded.
 
Low sensitivity (10 μV/° C), high cost, is not suitable for universal.