WR□K□□ - series armored thermocouple
作者：admin点击：42 发布时间：2022-12-27
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| （2）Measuring range and tolerance(Temperatwre Range and Tolerance) |
分 度 号
Graduadtion | Accuracy class, measurement range and tolerance ℃ | | Ⅰ级 | Ⅱ级 | Ⅲ级 | | K、N | -40～1100℃±1.5or±0.4%|t| | -40～1300℃±2.5or±0.75%|t| | -200～40℃±2.5or±1.5%|t| | | E | -40～800℃±1.5or±0.4%|t| | -40～900℃±2.5or±0.75%|t| | -200～40℃±2.5or±1.5%|t| | | J | -40～750℃±1.5or±0.4%|t| | -40～750℃±2.5or±0.75%|t| | / | | T | -40～350℃±1.5or±0.4%|t| | -40～350℃±1.0or±0.75%|t| | -200～40℃±1.0or±1.5%|t| | | S、R | 0～1100℃±1.0℃
1100～1600℃±[1+(t-1100)×0.003] | 0～600℃±1.5℃
600～1600℃±0.25%|t| | / | | B | / | 600～1700℃±0.25%|t| | 600～800℃±4.0℃
800～1700℃±0.5%|t| |
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notes：Ⅰ、T is the absolute value of the measured temperature；
Ⅱ、The above tolerances comply with ITS-90 international temperature scale. |
| (3)Working principle of thermocouple |
| It is a temperature sensor made of two different conductors or semiconductors (thermoelectric electrodes) that meet certain requirements, with one end welded as the measuring end and the other end as the reference end. It measures the temperature using the functional relationship between the temperature difference at both ends and the thermoelectric potential. |
| (4)Basic form of thermocouple |
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| (5)Sheathed thermocouple material: |
| 1Cr18Ni9Ti 0Cr18Ni10Ti 321 316ss 316L 304SS Cr25Ni20(310S) 347SS GH3030 Incoloy800 Incoloy600 NS113 GH3039... |
