Thermocouple is usually fabricated and display instruments, recording instrumentsand the PIC and the DCS control system, and supporting the use of direct measurement of a variety of production processes -200-2380 ℃ range of liquid,vapor and gases and the solid surface stability.

Features: Standard assembly is reasonable, flexible replacement; compression spring-type temperature sensing element, anti-vibration performance; measuringrange, temperature corrosion; high mechanical strength, good pressure resistance.

How it works: two different components of the conductor at both ends by welding,form a loop, called the direct measurement of temperature-side end of the terminal-side is called the reference side. When the measurement side and the reference junction temperature difference, it will generate thermoelectric power in the loop,connected to the display meter, the meter to indicate the heat generated by the thermocouple emf corresponding temperature. Thermocouple measuring the thermalemf will end with the growth temperature increases, the size of thermal EMFconductor material, and only with the thermocouple temperature on both ends, with the hot electrode length and diameter has nothing to do. Fabricated mainly by thethermocouple junction box to protect the casing, terminals, heat the basic structure ofthe electrode composition, and composition with various mounting devices.

Temperature measurement range and tolerances
Type thermocouple measuring range code number indexing tolerance △ t ℃ ℃
Platinum Rhodium 30 - Platinum Rhodium 6 WRR B 0 ~ 800 ± 1.5 ℃ or ± 0.25% t
Platinum Rhodium 10 - Platinum WRP S 0 ~ 1600 ± 1.5 ℃ or ± 0.25% t
Nickel-chromium - nickel silicon WRN K 0 ~ 1300 ± 2.5 ℃ or ± 0.75% t
Nickel-chromium - copper-nickel WRE E 0 ~ 800 ± 2.5 ℃ or ± 0.75% t