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Top Quality Type K Thermocouple Wire

Basic Info

Model No.:  K type

Product Description

Model NO.: K type Status: Bright Specification: IEC 584-2 HS Code: 90259000 Process Standard: IEC-584-2 Trademark: Ualloy Origin: China 1,discription of thermocouple alloys:

A thermocouple is a temperature measuring device consisting of two conductors of dissimilar metals or alloys that are connected only at the ends. When the ends are at different temperatures a small voltage is produced in the wire that can be related directly to the temperature difference between the ends. If the temperature at one end is known, the temperature at the other end can be determined. 

Thermocouple Wire or extension grade wire is recommended to be used to connect thermocouples to the sensing or control instrumentation. The conditions of measurement determine the type of thermocouple wire and insulation to be used. Temperature range, environment, insulation requirements, response, and service life should be considered. 

2,thermocouple temperature range and tolerance
Type Standard Operating temperature range (°C) Tolerance(°C)
Long term Short term Grade Temperature range Tolerance
K GB/T2614 K 1200 1300 I -40~1000 ±1.5°C/±0.4%t
II -40~1200 ±2.5°C/±0.75%t

conductor: positive NiCr Ni 90%,Cr 10%
                   nagative NiAl Ni 97% ,Al 3%

TYPE K (CHROMEL vs ALUMEL ) is used in oxidizing, inert or dry reducing atmospheres. Exposure to vacuum limited to short time periods. Must be protected from sulfurous and marginally oxidizing atmospheres. Reliable and accurate at high temperatures. 

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