It is common to find many different industries using RTD sensors to measure temperature. Two sensors elements are frequently used when making RTD sensors probes, PT100 and PT1000. The main difference between the two is their nominal resistance, which is a determining factor in choosing a type for your specific use.
PT 100 and Pt 1000 RTD elements are the two most common platinum RTD sensors. PT100 sensors have a nominal resistance of 100Ω at 0°C (ice point). A Pt1000 sensor’s nominal resistance at 0°C is 1,000Ω. For both sensors, operating temperature range, the response time (based on similar size) are the same. Temperature coefficients of resistance (usually TC 385) are can also the same. Both types are used in many industries, are suitable for an extensive range of processes and instruments.
Pt1000 thermistor provides a higher output resolution than a Pt100 sensor by a factor of 10. A Pt1000 RTD sensor is only in thin-film form, whereas a Pt100 sensor comes in both thin-film and wire-wound constructions.
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