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WR▢K▢▢-Armoured Thermocouple Series |
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| (2) Temperatwre Range and Tolerance |
Graduadtion
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Grade of accuracy measured range and tolerance |
| I |
II |
III |
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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Note:Ⅰ.'t' is the absolute of measured temperature;
Ⅱ. The above tolerance conforms to ITS-90 international temperature standard. |
| (3) Thermocouple Principle of Operation |
| A kind of temperature sensor which consists of two different, qualified conductor or semiconductor(thermoelectrode), solder one terminal as measuring terminal, and the other one is reference terminal. It measures the temperature according to the relation of the temperature difference between the two terminals and the function of the thermoelectric potential. |
| (4) Thermocouple Basic Form |
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| (5) Armoured thermocouple |
| 1Cr18Ni9Ti
0Cr18Ni10Ti 321 316ss 316L
304SS Cr25Ni20(310S) 347SS
GH3030 Incoloy800 Incoloy600 NS113
GH3039 etc. |
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