Popis
Tungsten-Rhenium thermocouples were developed to meet the requirements for measuring ultra-high temperatures in the 2760°C range.
OMEGA offers two widely used Tungsten-Rhenium thermocouple types:
Tungsten-5% Rhenium versus Tungsten-26% Rhenium: Type C
Tungsten-3% Rhenium versus Tungsten-25% Rhenium: Type D
The average EMF of the W-3% Re/W-25% Re is slightly more than that of W-5% Re/W-26% Re. The ductility of W-3% Re is about equal to that of W-5%Re, but superior to that of unalloyed Tungsten.
Both thermocouple types can be used to 2760°C in hydrogen or inert gas atmospheres and in a vacuum. They undergo rapid deterioration under oxidising conditions and should not be used in air or atmospheres containing oxygen.
OMEGA Tungsten-Rhenium thermocouples are supplied in 300 mm lengths (600 mm loop). Other lengths are available, see configurator or contact our sales department.
Temperature Limits and Accuracy for Tungsten-Rhenium Thermocouple Wire Diameters
| Wire Diameter mm (in.) | Temperature Range (*) | Maximum Error (Greater of) |
| 0.075 (0.003) | 0 to 1750°C | ±4,5°C ±1% |
| 0.125 (0.005) | 0 to 1975°C | |
| 0.25 to 0.50 (0.010 to 0.020) | 0 to 2325°C |
* Up to 2760°C for short-term exposure
Complete informations can be found in the spec sheet (PDF), see the „Download“ section.
Calibration for temperatures above 1100°C according to individual agreement.
