About Resistance Temperature Detectors
A resistance temperature detector (RTD) operates on the principle that a change in the temperature of a metal causes a corresponding change in that metal’s electrical resistance. The resistance of the RTD increases as the temperature rises. SOR can provide a replacement for any failed thermocouple, RTD, or temperature assembly.
In most process applications, the temperature sensor is inserted into a thermowell or protection tube. This protects the sensor from its environment and facilitates easy maintenance. These assemblies generally consist of a head, nipple-union-nipple, and thermowell.
- Every RTD is 100% tested for accuracy and continuity after the manufacturing process
Multiple Design Options
- Thin film RTD’s are standard, with wire wound designs available
316SS standard sheath material, with other materials and coatings available
Tiers of Accuracy for Different Applications
- Class B, Class A, and the 1700 A tolerances provide different tiers of accuracy
Two wire, three wire, and four wire configurations also give the customer different levels of accuracy
Large Temperature Range Capabilities
- Some design types have temperature ratings down to -200ºF (-129ºC) and up to 900ºF (48ºC)