Nickel chrome - Nickel silicon thermocouple, i. e. , K type thermocouple. K type thermocouple dosage is the largest inexpensive metal thermocouple, its dosage is the sum total of other thermocouple. General and thermocouple compensating lead wires required the positive and negative to anode materials are the same, so the K type thermocouple is nickel cadmium ( Is) Silicon, nickel, Negative) , according to the standard should choose nickel cadmium, nickel silicon compensation conductor. But generally due to the cost of the problem, under the condition of the precision allowed type K thermocouple is made of copper and constantan compensating lead wires, so that it can greatly save cost! So K type thermocouple compensation conductor should be divided into the following two categories:







1, the extended type compensation conductor should be extended type compensation wire is also called extended type wire, the wire in the name of the chemical components and the thermoelectric emfs nominal value and the thermocouple, the same with the letter 'X' attached to the thermocouple said after graduation, such as 'KX' said K type thermocouple with compensation conductor should be extended type.


2, compensation compensation conductor compensation compensation wire, also known as compensation wire, the wire in the name of the chemical composition and thermocouple are different, but the value of thermoelectric emfs, at 0 100 ℃ or 0 200 ℃ with with thermocouple thermoelectric emfs nominal values are the same, with the letter 'C' attached to the thermocouple said after graduation, such as 'KC'.


different wire can be applied to the same degree of thermocouple, and the additional letters.