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Construction: The RTD PT100 is a commonly used temperature sensor in various industrial and scientific applications. It consists of a platinum wire (typically pure platinum) wound into a spiral or helical shape and mounted on a substrate. The platinum wire has a resistance of approximately 100 ohms at 0°C, which is why it is referred to as "PT100."
Resistance Characteristics: One of the key features of the RTD PT100 is its change in resistance with temperature. Its resistance increases linearly with rising temperature, making it well-suited for high-precision temperature measurements.
Temperature Range: RTD PT100 sensors have a wide temperature range, typically from around -200°C to 600°C. However, special variations of PT100 can be used for temperatures beyond this range.
Precision: One of the major advantages of RTD PT100 is its high measurement accuracy, typically with a tolerance of less than 0.1% of the actual temperature value.
Response Time: RTD PT100 sensors have a relatively slow response time compared to other temperature sensors, such as thermocouples. This is due to the slow-changing resistance characteristics with temperature. Therefore, RTDs are more suitable for applications that do not require real-time temperature monitoring with rapid temperature changes.
Connection: RTD PT100 sensors are typically connected to temperature measurement devices via 2, 3, or 4-wire configurations. The 4-wire configuration provides higher accuracy by eliminating the resistance effects of the connecting wires.
Applications: RTD PT100 sensors find widespread use in industries such as food processing, pharmaceuticals, automotive, and many laboratory applications where precise and accurate temperature monitoring is essential.
Advantages: The advantages of RTD PT100 sensors include high accuracy, stability, and long lifespan. They also require less frequent calibration.
While RTD PT100 sensors offer several advantages, it's important to note that they can be more expensive than some alternative temperature sensors. Additionally, they are not suitable for applications requiring extremely fast response times.
RTD PT 100 