Thermocouple Wire Gauges

Different thermocouple types use different mixtures of metal in the wire.

Thermocouple wire gauges. 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. A key feature of this type of wire includes the ability to withstand vibration high temperatures and pressures. It is great for rugged use in an industrial setting especially if you are not using conduit or wire duct or anything. These gauges use a current to heat a wire.

Gauge 8 14 16 20 24 28 30 38 nominal resistance and weights bare thermocouple wire and extension wire conductors based on ohms per foot at 70 f note. Newark offers a wide variety of thermocouple wire from leading brands such as alpha wire and newport electronics. 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. The thermocouple or pirani gauge fits this requirement.

The only down side is the outer sheathing is flat and care must be taken to strip it back as to not damage the insulation on the conductors. The backing lines and roughing gauges require something more accurate when reaching a lower pressure than the capsule gauges. 3 3 pirani and thermocouple gauges. Add these connectors to thermocouple wire for easy attachment to thermometers and control panels.

We also offer special construction thermocouple wire and rtd cable including multi pair thermocouple extension wire. Connectors with exposed screw terminals let you quickly attach wire leads without disassembling the connectors. All footages stated are in pound units except platinum calibrations which are in troy ounce units gauge construction circular mils 14 16 26 4006 16 7 24 2828 res. The alternative is the pirani gauge which operates in a similar way over approximately the same pressure range but is only a 2 terminal device sensing the change in resistance with temperature of a thin electrically heated wire rather than using a thermocouple.

The heated wire loses heat to the gas molecules that collide with the wire. Metal sheathed thermocouple wire metal sheathed thermocouple wire is thermocouple wire that is surrounded by insulation material typically magnesium oxide and enclosed in a metal sheath. Thermocouple wire is used to measure temperature and consists of two different conductors that contact each other at one or more spots. Pyromation stocks and sells a variety of sizes and gauges of thermocouple grade and extension wire as well as wire insulators.