20305 Irún (Guipúzcoa) SPAIN
Tel.: +34 943 633 562 | Fax: +34 943 633 285
E-Mail: conatec@conatec.com
C\ Gabiria nº 112-114-146
Pº Ventas 20305
Irún (Guipúzcoa) SPAIN
Tel.: +34 943 633 562
Fax: +34 943 633 285
E-Mail: conatec@conatec.com
Thermocouple
A thermocouple is an element comprised of two different metals which, combined, produce an electromotive force or a voltage proportional to the temperature at which is it found. Depending on the metals of which the thermocouple is comprised the signals generated are different depending on the temperature. When applied to industry, for the measurement of temperature in the most varied processes, different metal pairs are selected with one of them acting as the positive pole and the other as the negative pole. The fem generated is measured in millivolts and microvolts depending on the thermocouple type. The most usual ones are described below.
| Thermocouple | Positive | Negative |
|---|---|---|
| Type K Thermocouple | Nickel-Chrome | Nickel-Aluminium |
| Type T Thermocouple | Copper | Copper-Nickel |
| Type J Thermocouple | Iron | Copper-Nickel |
| Type N Thermocouple | Nickel-Chrome-Silicon | Níquel - Silicio - Magnesio |
| Type E Thermocouple | Nickel-Chrome | Copper-Nickel |
| Type R Thermocouple | Platinum - 13% Rhodium | Platinum |
| Type S Thermocouple | Platinum - 10% Rhodium | Platinum |
| Type B Thermocouple | Platinum - 30% Rhodium | Platinum - 6% Rhodium |
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