Oakton WD-08439-90 - Low-Cost Air/Gas Thermocouple Probe, Type J

The Oakton Air/Gas Probes are designed with a perforated shield which allows air and other gases to flow into the sensor for quick readings. Metal shield also absorbs radiameterted heat and minimizes sensor error. The sensors are encased in ceramic mineral (MGO) insulation to provide stability - and shock and vibration resistance. Probes include a 5-ft.. PVC coiled cord with strain relief that protects from repeated flexing and tugging. Ergonomic - easy-grip 5'L handle provides maximum heat insulation and impact resistance. Finger stops on handle prevent probe from rolling and fingers from sliding when inserting probe into hard materials. The 316 stainless steel sheath (shaft casing) provides durability - strength - and maximum abrasion resistance. Rugged thermoset plastic mini connector is compatible with all Digi-Sense and Acorn thermocouple thermometer. The 316 stainless steel sheath (shaft casing) provides durability - strength - and maximum abrasion resistance. Rugged thermoset plastic miniconnector is compatible with all Oakton and Acorn thermocouple thermometers. Temperature Range: Range: -418 to 572°F (-250 to 300°C); Dimension: 5' tip Lg; 0.125' diameter.
 

Penetration and Air/Gas Probes

Thermocouple Probe Junction Types

Sheaths with small diameters have faster response times; sheaths with larger diameters have longer life and are better for measuring higher temperatures.

Probe Shealth/Body Materials

Inconel® 600 Sheath is ideal for severely corrosive environments and elevated temperatures. Resists progressive oxidation. Maximum operating temperature: 1148°C (2100°F) continuous; 1371°C (2500°F) intermittent.

304 SS Sheath is for general-purpose use, is corrosion-resistant, and good for food service and biological applications. Maximum operating temperature: 898°C (1650°F) continuous; 1398°C (2550°F) intermittent.

316 SS Sheath has higher corrosion resistance than 304 SS. Withstands some strong acids. Maximum operating temperature: 898°C (1650°F) continuous; 1371°C (2500°F) intermittent.

SS Sheath with Coating of PTFE or PFA with grounded junction is ideal with corrosive liquids and atmospheres. Longer response time. Temperatures to 260°C (500°F).

Polymer Body Probes are available in a variety of polmyers including Kapton® and PTFE. These provide excellent flexibility and often good chemical resistance. Be sure to consult a chemical compatibility table when selecting a probe for your application.
 

Physical Characteristics of Thermocouples

General Considerations

Extend Your Thermocouples up to 2000 feet without signal loss. Extension wire must be the same type as the thermocouple.

System Error becomes important when you select a probe and meter to make a complete temperature measurement system. For example: a meter has an accuracy of ±0.7°F; probe error for the type T probe with metal sheath, straight cable, and stripped ends will have an error limit of ±1.8°F at 400°F. Therefore, the probe-meter system accuracy will be (±0.7) + (±1.8) = ±2.5°F at 400°F.

NIST traceability is required for many applications. In order to make an item traceable to NIST standards, the item and the standard are exposed to the same conditions, the readings are noted, and the difference between the readings is recorded on a NIST-traceable calibration report. When taking future readings with the item, the value on the report must be added or subtracted from the measured value.

The 316 stainless steel sheath (shaft casing) provides durability, strength, and maximum abrasion resistance. Rugged thermoset plastic miniconnector is compatible with all Oakton and Acorn ® thermocouple thermometers. Connectors and coiled cord are color-coded based on type: type J black, type K yellow, and type T blue.

Air/Gas Probes are designed with a perforated shield which allows air and other gases to flow into the sensor for quick readings. Metal shield also absorbs radiated heat and minimizes sensor error. Our sensors are encased in ceramic mineral (MGO) insulation to provide stability, and shock and vibration resistance.