Sheathed thermocouple and display instruments, recording instruments, PIC, DCScontrol system, and supporting the use of various production processes to directly measure the range 0-1300 ℃ of liquid, steam and other media and fixed surface temperature.

Features: low thermal response time and reduce the dynamic error; flexibleinstallation; measurement range; high mechanical strength, good pressure resistance.

Works: from the ends of two different components of the conductor by welding, form a loop, called the direct measurement of temperature-side end terminal called thereference junction. When the measurement side and the reference junctiontemperature difference, it will generate heat in the loop current, connected to thedisplay meter, the meter will indicate the thermal EMF generated by the thermocouplecorresponding temperature. Sheathed thermocouple measuring the thermal emf willend with the growth temperature increases, the size of thermal EMF armored only with the conductor material and thermocouple temperature on both ends, with the hot electrode length and diameter has nothing to do. The structure sheathedthermocouple is conductor, insulating magnesium oxide and stainless steel protection tube 1Cr18Ni9Ti drawn from many times. Sheathed thermocouple products from thejunction box, junction box terminal and the basic structure composed of sheathedthermocouple, and with a variety of fixtures composition.

Temperature range and accuracy
Category Code No. indexing mm diameter tube used temperature ℃ ℃ maximum temperature tolerance △ t
Tolerance value of measuring range ℃
Nickel-chromium - copper-nickel WREK E ≥ ø3 600 700 0 ~ 700 ± 2.5 ℃ or ± 0.75% t
Nickel-chromium - nickel silicon WRNK K ≥ ø3 800 900 0 ~ 900 ± 2.5 ℃ or ± 0.75% t
Copper - Copper-nickel WRCK T ≥ ø3 350 400 <-200 not provided
-40
350 ± 0.75% t