TH11

A Resistance Temperature Detector (RTD) measures temperature based on the principle that the electrical resistance of a metal conductor changes with temperature. The fundamental mechanism is that as temperature varies, the lattice vibration of metal conductors such as platinum and copper changes, affecting the movement of electrons and resulting in a corresponding change in electrical resistance. Taking the platinum resistance sensor Pt100 as an example, the standard resistance value is 100 Ω at 0 °C. The resistance increases by approximately 0.385 Ω per °C rise in temperature, exhibiting a highly linear relationship within a defined temperature range. In practical measurement applications, a constant current source or bridge circuit converts resistance changes into electrical signals. Three-wire or four-wire configurations are used to compensate for lead resistance errors, and the measured resistance value is then converted into temperature according to internationally standardized resistance-temperature tables.

Standard

The TH11 RTD temperature sensor is designed for process industries and environmental automation applications. It consists of an RTD measuring probe, insulation layer, and armored thermocouple/RTD insert, providing reliable temperature measurement in demanding industrial environments. The sensor is suitable for a wide range of industrial applications, including: Heat exchangers Energy recovery zones Carbon regeneration furnaces Dryers Flue gas measurement Compressor stations Process reactors