Expendable thermocouple
1. Genenal
K type thermocouple is a sensor for temperature measurement. It can be connected to a fast potentiometer or a digital instrument to measure temperatures of melted iron, steed or other metals.
2. Specification
|
Type
|
Calibration no.
|
Composing Materials
|
|
|
+leg(1)
|
-leg(2)
|
||
|
K
|
S
|
PtRh10%
|
Pt
|
|
K
|
B
|
PtRh30%
|
PtRh6%
|
|
K
|
R
|
PtRh13%
|
Pt
|
|
K
|
W
|
Tungsten-3%rhenium
|
Tungsten-25%rhenium
|
Note(1): The +leg means a leg to be connected to +terminal of an instrument to measure thermal electromotive force and -leg means opposite side one.
|
Type
|
Calibration no.
|
Wire diameter
(mm)
|
Max. Working temperature℃
|
Thermal electromotive
Force(Mv)
|
|
K
|
S
|
0.05~0.07
|
1650℃
|
18.709
|
|
K
|
B
|
0.05~0.07
|
1750℃
|
13.814
|
|
K
|
R
|
0.05~0.07
|
1700℃
|
|
|
K
|
W
|
0.1
|
1800℃
|
|
Response time: less than 5 seconds.
Tolerance on temperature:
|
Type
|
Calibration no.
|
Temperature range
|
Accuracy
|
|
K
|
S
|
1200— 1650℃
|
＜± 4℃
|
|
K
|
B
|
1200— 1750℃
|
＜± 4℃
|
|
K
|
R
|
1000— 1700℃
|
＜± 4℃
|
|
K
|
W
|
1000— 1800℃
|
＜± 5℃
|
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