Bare Thermocouple Wire (Wide Range of Diameters)

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Wire welding (optional)

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OMEGA Engineering

Bare Thermocouple Wire, Uninsulated. Wire Diameters from 0,0127mm to 3,264 mm. 15, 30, 150, 300 Metre Reels. Can be ordered including welding. More

Item# (PN): SPIR Shipping and Payment

In order to meet the immediate needs of science and industry for highest quality thermocouple wire SPxx series in practical quantities at reasonable prices, OMEGA makes available thermocouple materials in a variety of wire sizes. Sizes range from 0.0005 to 0.128" (0.012 to 3.264 mm) diameter. The wire is supplied as single legs or in matched pairs to meet standard limits of error.

* / ** There are two forms of Constantan. Each form is composed of the same elements, but the percentages (%) of constituent elements differ. One is matched to Iron. The other can be matched to Copper or Chromel (CHROMEGA ®) . When ordering "matched pairs," be sure to specify SPCI with SPIR and SPCC with SPCP or SPCH.

If you are interested in cutting and welding wires up to 10 pieces, you can order online. Wires from a diameter of 0.127 mm can be welded. Insert both required thermocouple branches into the basket and enter the number of welds for one of them, see the "Wire welding (optional)" in configurator. Other wire sizes and quantities are available on special request.

The online configurator may not contain all available options. If you do not find what you are looking for, please contact us.

Complete informations can be found in the spec sheet (PDF), see the "Download" section.

Parameters
Thermocouple type K, J, T, E, N
Download
SPIR_en_spec_sheet.pdf (pdf, 160.1 kB)
Barevne_znaceni_ANSI_IEC.pdf (pdf, 82.2 kB)
How is Temperature Measured?

How is Temperature Measured?

Temperature can be measured via a diverse array of sensors. All of them infer temperature by sensing some change in a physical characteristic. Six types with which the engineer is likely to come into contact are: thermocouples, resistive temperature devices (RTDs Pt100 and thermistors), infrared radiators, bimetallic devices, liquid expansion devices, and change-of-state devices.

Choose the right temperature measurement instrument for your application...

Thermocouple Wire / How it Works?

Thermocouple Wire / How it Works?

The thermocouple wire or cable is used to manufacture thermocouple probes in order to sense temperature using the point of cold junction compensation (cjc end). On the other side, as it has been explain in this other article, a thermocouple is a sensor for measuring temperature, that consists of two dissimilar metals that are joined together at the sensing end.

Different thermocouple types (e.g. J or K type thermocouple wire) use different mixtures of metals in the cable. At the cjc end, the millivolt value provided by the thermocouple represents the difference in temperature of the sensing end as compared to the cjc end (also called the reference end)...

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