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Description
OMEGA™ Exotic Thermocouple Probes are designed for use in extreme temperatures, up to 2315°C (4200°F). These probes utilize either Platinum/Rhodium (types R, S, or B) or Tungsten/Rhenium (types G, C, or D) elements, with a variety of insulations and sheath materials. Depending upon the sheath material selected, these probes may be used in inert, oxidizing, reducing or vacuum conditions. The maximum temperature is based on the lowest max. temperature of the element, insulation and sheath material. Five cold end probe terminations are available: replacement probe, subminiature or standard size ceramic connector, heavy-duty standard size, molybdenum-sheathed nylon connector, or transition joint with 72-inch lead wire.Code | Material | Max. Operating Temp. | Working Environment | Approx. Melting Point | Remarks |
XTA | Tantalum | 2300°C 4200°F | Vacuum | 3000°C 5425°F | Resists Many Acids and Weak Alkalies. Very Sensitive to Oxidation Above 570°F |
XMO* | Molybdenum | 2200°C 4000°F | Inert Vacuum Reducing | 2610°C 4730°F | Sensitive to Oxidation Above 400°F Non-bendable |
XPA | Platinum- Rhodium Alloy | 1650°C 3000°F | Oxidizing Inert | 1870°C 3400°F | No Attack by SO2 at 2000°F. Silica Is Detrimental. Halogens Attack at High Temp. |
XIN | Inconel 600 | 1150°C 2100°F | Oxidizing Inert Vacuum | 1400°C 2550°F | Excellent Resistance to Oxidation at High Temp. Hydrogen Tends to Embrittle. Very Sensitive to Sulfur Corrosion |
Code | Material | Max. Operating Temp.** | Approx. Melting Point | Remarks |
H | Hafnia (HfO2) | 2500°C 4530°F | 2830°C 5125°F | Nontoxic substitute for BeO. High Thermal Conductivity. |
M | Magnesia (MgO) | 1650°C 3000°F | 2790°C 5050°F | Hygroscopic. Compacts Well. |
A | Alumina (Al2O3) | 1540°C 2800°F | 2010°C 3650°F | Requires Considerable Volume Reduction to Compact Satisfactorily. |
** Specify Probe Length in inches |
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