Condition: 100% Brand New Item Type: Thermocouple Model: WRP-100 Graduation: S Material: 99 corundum tube Resistance Component: Platinum rhodium wire Wire Diameter: Approx. 0.12mm / 0.004in Tube Diameter: Approx. 7mm / 0.3in Measurement Range: 0-1300 (long term) 0-1600 (short term) Industrial platinum and rhodium thermocouples are also called precious metal thermocouples. They are used as temperature measurement sensors and are usually used in conjunction with temperature transmitters, regulators and display instruments to form a process control system to directly measure or control various production processes. The temperature of fluid, steam, gas medium and solid surface within the range of 0-1600. The platinum rhodium thermocouple is a circuit composed of two different conductors connected at both ends of the circuit. When the temperature of the two junctions is different, a thermal current will be generated in the circuit. If there is a temperature difference between the working end of the thermocouple and the reference end, the display instrument will indicate the temperature value corresponding to the thermoelectric potential generated by the thermocouple. The thermoelectric heat of the platinum-rhodium thermocouple will increase with the increase in the temperature of the measuring end, and its size is only related to the thermocouple material and the temperature at both ends, and has nothing to do with the length and diameter of the thermoelectrode. The appearance of various platinum and rhodium thermocouples is often very different due to needs, but their basic structure is roughly the same, usually composed of main components such as a thermode, an insulating sleeve protection tube and a junction box.