Nickel-chromium-nickel-silicon thermocouple (K-type thermocouple) is currently the largest amount of low-cost metal thermocouple, and its amount is the sum of other thermocouples. The nominal chemical composition of the positive electrode (KP) is Ni: Cr=90:10, the nominal chemical composition of the negative electrode (KN) is Ni: Si=97:3 and its service temperature are -200~1300℃. K-type thermocouple has the advantages of good linearity, large term electromotive force, high sensitivity, good stability and uniformity, strong oxidation resistance, and low price. It can be used in an oxidizing inert atmosphere. Widely adopted by users. K-type thermocouples cannot be directly used in sulfur, reducing or reducing, oxidizing alternate atmospheres and vacuum at high temperatures, nor are they recommended for use in weakly oxidizing atmospheres.
We have a cost-effective temperature transmitter that also uses a K-type thermocouple, widely used in temperature measurement of liquid and gas.