Thermocouple probes operate on the principle that an electromagnetic force (emf) is generated when heat is applied to the junction of two dissimilar metals (sending junctions). At the other end of the wires, usually as part of the input instrument, is another junction called the reference junction. The temperature is inferred based on the emf difference between the sensing and the reference junction, which is at a known temperature. Thermocouple probe junction types include exposed junction, ungrounded junction, and grounded junction. Thermocouples offer the greatest temperature range and are more cost effective but are the least sensitive and accurate of the sensor types. A thermocouple probe is suitable for use from -200 to 2000 degrees C.
- Economical Air/Gas probes are ideal for quick readings
- Exposed Junction is protected by a wire coil shield to minimize error from radiated heat
- A compact light weight design allows for ease of use when space is limited but rugged enough for industrial environments.
- Response Time: 1.75 seconds or greater
- Each probe comes with a color coded ANSI coiled cable: type J-black, type K-yellow, type T-blue, and type E-purple.
- Custom designs or changes to this product are available upon request