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, steel 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 temperatureºC
Thermal electromotive
Force(Mv)
K
S
0.05~0.07
1650ºC
18.709
K
B
0.05~0.07
1750ºC
13.814
K
R
0.05~0.07
1700ºC
K
W
0.1
1800ºC
Response time:less than 5 seconds.
Tolerance on temperature:
Type
Calibration no.
Temperature range
Accuracy
K
S
1200-1650ºC
<±4ºC
K
B
1200-1750ºC
<±4ºC
K
R
1000-1700ºC
<±4ºC
K
W
1000-1800ºC
<±5ºC
3.Structure
1)Structure of thermocouple
Cardboard (ID 18mm/OD 30m)
plasticsupport
refractory cement body
refractory cement head
Quartz tube
protective iron / Al cap
2) Weight of thermocouple:250 grams with 1000mm long paper tube
For the thermocouples, had export to Pakistan, Philippine, Egypt, Saubi Arabia, Jordan, and customer thinks our cargo performance is accepted and the price is good.