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Thermocouple Elements

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About Thermocouple Elements

Thermocouple elements are temperature sensors that are useful over a wide range of temperatures. They are used with thermocouple temperature probes, bimetallic devices that are suitable for various temperature sensing applications. Thermocouple elements are also used with data acquisition (DAQ) systems and other temperature sensing equipment. A valuable temperature sensing tool, thermocouple elements are highly sensitive to small temperature changes and able to respond quickly to changes to the environment. Insulated devices are commonly available. Options include alumina, ceramic, fiberglass, mullite, polyvinyl chloride (PVC) and Teflon®, a registered trademark of DuPont.   

Metal type is an important consideration when selecting thermocouple elements. Base metal thermocouples can measure different temperature ranges, depending on the sensor material. Each type or designation represents a specific metal type and temperature range. Type E (chromel/constantan) has a typical temperature range of -270° C to 1000° C. Type J (iron/constantan) has a temperature range of -210° C to 1200° C. Type K (chromel/alumel) has a temperature range of -270° C to 1372° C. Type N (nicrosil/nisil) has a temperature range of -270° C to 1300° C. Type T (copper/constantan) has a temperature range of -270° to 400° C. For noble and refractory metals, choices include type B (platinum 30%/rhodium) with a temperature range of 0° C to 1820° C; Type S (platinum 10%/ rhodium) with a temperature range of -50° C to 1768° C; Type R (platinum 13%/rhodium) with a temperature range of -50° C to 1768° C; and Type W (tungsten/rhenium) with a temperature range of 0° C to 2300° C.

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Engineering Web: Thermocouple Elements

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Part Numbers for Thermocouple Elements

Part # Distributor Manufacturer Product Category Description
5945000002624 PLC Radwell NSN Not Provided THERMOCOUPLE ELEMENT TYPE K
6685011104596 PLC Radwell NSN Not Provided THERMOCOUPLE ELEMENT TYPE T
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