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Highest Temperature Thermocouple - Items tagged as "72 inches long"
The HighestTemperatureThermocouples are Type C(Tungsten Rhenium) andType B, R or S(Platinum Rodium) with capabilities in the 1832°F (1000°C) to 4200°F (2315°C) Temperature Range.
Type C(Tungsten Rhenium) andType B, R or S(Platinum Rodium) thermocouples are the primary choices for highest temperature measurements with consistent performance. The selection of the best suited thermocouple alloy is extremely dependent upon the temperature range and atmosphere or environment (vaccum, inert, air, oxidizing, etc) of the application.
Type Cthermocoupleshave have the highest temperature capability up to 4200°F (2315°C) although must be used in aVacuumorInertatmosphere
Type Bthermocouplesprovide the highest temperature rangein an Air and Oxidizing environments with 3,092°F (1700°) temperature on a continuous basis and up to 3,362°F (1850 °C) for short periods of time
Type RandSthermocouplescan operate in-58 to2,700°F (-50 to 1480°C), althoughmost times they are utilized at temperatures of 1800°F (1000°C) and higher due the thermocouple alloy having low per degree milivolt output at lower temperatures. Type R and S are resistant to oxidation in air although reducing atmospheres can be especially damaging.
Type Kthermocouplescanbe used in the 1832 to 2300°F range (1000 to 1260°C) with larger diameter wire and probe sheaths starting with 1/8" (.125") to 1/4" (.250") for shorter periods of time.
The maximum continuous temperature for Type K is about 2,000°F (1,100°C) although the thermocouple alloy can function at higher temperature with special sheathing, high purity insulation and precise manufacturing methods