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Expendable thermocouple(R,S,B,and Wre)is usually connected with display meter,recording meter and computer,etc.to directly measure temperature of liquid metal ranging from 0-1820°c during various steel or iron process.
It has advantage of high accuracy,rapid reaction,reliability and stability.
According the different thermocouple wire,thermocouple has four type are S,R,Band WRe Type.
|
Type |
Model |
+leg |
-leg |
|
R |
QR-KR |
PtRh13% |
Pt |
|
S |
QR-KS |
PtRh10% |
Pt |
|
B |
QR-KB |
PtRh30% |
PtRh6% |
|
WRe |
QR-KW |
WRe3% |
WRe25% |
|
Type |
Model |
ing Temperature°c |
Wire diameter(mm) |
|
R |
QR-KR |
1760°c |
0.04 |
|
S |
QR-KS |
1760°c |
0.04 |
|
B |
QR-KB |
1800°c |
0.04 |
|
WRe |
QR-KW |
1820°c |
0.1 |
According the different thermocouple connector,thermocouple head can be divide in 602 type and 604 type.
|
Type |
Model |
|
602(Round bottom) |
QR-KR/S/B/W-602 |
|
604(Triangle bottom) |
QR-KR/S/B/W-604 |
According the different thermocouple wire tolerance,It have two type are common thermocouple wire(P) and exact thermocouple wire(J).
|
Type |
Model |
Accuracy |
|
P(common wire) |
QR-KR/S/B/W-604/602P |
≤5°c |
|
J (exact wire) |
QR-KR/S/B/W-604/602J |
≤2°c |
Note:
1.Response time:less than 4 seconds.
2.cardboard (ID 18mm±1mm OD 30±1mm).
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