K-type thermocouple 
 Product Code: 002010051502 
 Model: WRN-130 WRN-230 WRN-330 WRN-430 WRN-530 WRN-630 
 Product Note: Thermocouple order by agreement 
 Category: → K-type thermocouple thermocouple 

 Type K (NiCr-Ni thermocouple silicon): the nickel-chromium and nickel silicon, the use of EU symbols, said. Is the largest amount of inexpensive metal thermocouple, the amount of the sum of the other thermocouples. Thermocouple wire diameter is generally 1.2 ~ 3.2mm. Positive (KP) in the name of chemical composition: Ni: Cr = 90:10, the negative (KN) in the name of chemical composition: Ni: Si = 97:3. EU thermocouple high chemical stability, can be oxidized or neutral medium for a long time to measure the temperature below 900 ℃, short-term measurements up to 1200 ℃. If used in the reductive medium, it will quickly corrode and can only be used to measure the temperature below 500 ℃. EU has a copy of the thermocouple is good, resulting in a large thermoelectric power, linearity, low cost advantages. Its accuracy is slightly lower, but, can fully meet the measurement requirements in the ceramic industry. Especially in the low-temperature fired ceramic color, low-temperature ceramic decorating and semi-dried, it can be used as a thermocouple. At present, China has begun to replace the nickel-nickel-silicon alloy material. Thermocouple made of new materials, and thermoelectric power in the anti-oxidation stability has greatly improved. 
 The main technical parameters 
 Product performance standards 
 IEC584 
 GB/T16839-1997 
 JB/T5582-1991 
 Order Notes: 
 1 indicate the thermocouple type, number of sub-degree, temperature. 
 2 thermocouple protection tube diameter and length. 
 3 fasteners, flange units, provide sizes.