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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 temperature°C | Thermal electromotive Force(Mv) |
K | S | 0.05~0.07 | 1650°C | 18.709 |
K | B | 0.05~0.07 | 1750°C | 13.814 |
K | R | 0.05~0.07 | 1700°C | |
K | W | 0.1 | 1800°C |
Response time:less than 5 seconds.
Tolerance on temperature:
Type | Calibration no. | Temperature range | Accuracy |
K | S | 1200—1650°C | <±4°C |
K | B | 1200—1750°C | <±4°C |
K | R | 1000—1700°C | <±4°C |
K | W | 1000—1800°C | <±5°C |