Some materials (such as platinum, copper, and nickel) resistance will vary at different temperatures. The resistance temperature sensor (RTD) uses this feature to evaluate the temperature in various commercial and industrial applications. The 3 wire RTD temperature sensor uses the third wire to measure and compensate for some resistance to the resistance of the temperature measurement wire, especially in the case, the temperature sensor is far from the temperature transmitter. The 3 -line RTD temperature sensor is more accurate than the basic 2 -line RTD, which is very suitable for most industrial applications. However, the 3 -line RTD does not consider factors that may affect the resistance value that may affect the sensor. Applying environmental conditions on the lead. The 4 -line RTD temperature sensor adds the fourth line and is used as a real bridge circuit. This 4 -line configuration allows continuous compensation for any lead. The 4 -line RTD temperature sensor is slightly more expensive than the 3 -line RTD temperature sensor, but they are very accurate and duplicate -even more than 3 line RTD temperature sensors.

 

When will the 4 -line RTD temperature sensor be needed?
The 4 -line RTD temperature sensor is the preferred sensor of the laboratory applications with accuracy, accuracy and repetitiveness. Laboratory application focuses on the process of design, improvement, simplification and testing, and repetition, and then can be used as daily procedures in industrial and commercial applications. Therefore, laboratory applications require the best available equipment to ensure the appropriateness, feasibility and quality of the process of implementing the results found in the laboratory. The 4 -line RTD is the best area for the best choice. Like the application of laboratory applications, the drawing resistance compensation provided by the 4 -line RTD circuit can provide meaningful accuracy, accuracy, and repetitiveness required to provide meaningful calibration.
 
Select 4 -line RTD temperature sensor
There are many high -quality and affordable 4 -line RTDs on the market. Wilian has been engaged in the design and manufacturing of RTD temperature sensors for many years, and is a supplier of the new energy vehicle RTD temperature sensor. Its RTD follows the IATF16949 (2016) standard. Velian's 4 -line RTD can bring or without temperature transmitter. These 4 -line RTD temperature sensors are compatible with temperature transmitters provided by other manufacturers. Victoria's RTD selection provides a variety of options for laboratories and calibration applications. The 4 -line RTD temperature sensor of the T10 series is wide and affordable. They can be configured in the process of heat suite or direct introduction. They have imported protection functions and use different wires and sheath materials, which are suitable for applications involving corrosive and high -temperature oxidation environments. They are essentially safe, explosion -proof, and are suitable for dangerous places. Velian can also customize RTD temperature sensors for a specific application, and provide a 4 -line RTD temperature sensor with very high vibration resistance for gas compressor bearing components.