PT SENSOR ( RTD SENSOR )

Description :
Resistance Temperature Detectors (RTDs) are temperature sensors that contain a resistor that
changes resistance value as its temperature changes.
They have been used for many years to measure temperature in laboratory and industrial processes,and have developed a reputation for accuracy,repeatability, and stability.

Feature :
*A wide temperature range (approximately -200 to 850°C)
*Good accuracy (better than thermocouples)
*Good interchangeability
*Long-term stability

With a temperature range up to 850°C, RTDs can be used in all but the highest-temperature industrial processes. When made using metals such as platinum, they are very stable and are not affected by corrosion or oxidation.
Other materials such as nickel, copper, and nickel-iron alloy have also been used for RTDs. However, these materials are not commonly used since they have lower temperature capabilities and are not as stable or repeatable as platinum.