Common Thermocouple Types

Common thermocouple thermocouple can be divided into standard and non standard thermocouple in two categories. So-called standard thermocouple is the national standard of its thermoelectric power and temperature dependence, tolerance, and unity of standard thermocouple indexing table, it has its matching display instrument for selection. Non standard thermocouple in use or on the orders of magnitude are not standardized thermocouple, in General, no uniform indexing table, mainly for the measurement of certain special occasions. Standardized thermocouple China from January 1, 1988, the thermocouple and thermal resistance according to IEC international standards of production, and specify s, b, e, k, r, j, t design-type thermocouple seven standardized thermocouple for the unification of China.