Temperature Sensor – Hi Temp Solutions

Temperature sensors built around your thermocouple type and process.

Thermocouple and RTD sensor assemblies with ceramic, steel and MI constructions, from air temperature measurement to extreme furnace service.

Thermocouple types

Alloy combinations and where they belong.

Type J

Iron-Constantan

A positive iron wire with a negative Constantan wire, recommended for reducing atmospheres. The operating range for this alloy combination is 1600°F for the largest wire sizes; smaller wires should operate at correspondingly lower temperatures.

Type T

Copper-Constantan

A positive copper wire with a negative Constantan wire, recommended for mildly oxidizing and reducing atmospheres up to 750°F and suitable where moisture is present. Recommended for low temperature work, as wire homogeneity is maintained better than other base metal wires.

Type K

Chromel-Alumel

A positive Chromel wire with a negative Alumel wire, recommended for clean oxidizing atmospheres. The operating range for this alloy is 2300°F for the largest wire sizes, with smaller wires operating at correspondingly lower temperatures.

Type E

Chromel-Constantan

Used for temperatures up to 1600°F in a vacuum, inert, mildly oxidizing or reducing atmosphere. At sub-zero temperatures it is not subject to corrosion, and it offers the highest emf output of any standard metallic thermocouple.

Types S, R, B

Platinum-Rhodium Alloys

Noble-metal combinations of 90% Pt / 10% Rh, 87% Pt / 13% Rh and 70% Pt / 30% Rh against platinum or Pt-6% Rh. High resistance to oxidation and corrosion; recommended operating range 2800°F, with up to 3270°F measurable using Pt-30% Rh vs Pt-6% Rh.

Types C, D, G

Tungsten-Rhenium Alloys

Three tungsten-rhenium types are in common use for measuring temperatures up to 5000°F. These alloys have inherently poor oxidation resistance and should be used in vacuum, hydrogen or inert atmospheres.