PT100 range expansion
Thread Content
Dear experts, I’ve encountered a problem at work recently. The measurement range of the PT100 is from -200 to +850, and I would like to expand this range by 1.3 times. Is that possible? Is there any way?
I’m afraid that won’t work; use a thermocouple instead
The range of PT100 (from -200°C to +850°C) is determined by its physical properties; it is the temperature range within which the sensor can function accurately under corresponding pressure and environmental conditions. Theoretically, beyond this range, the accuracy and stability of the sensor may be affected. As for your desire to increase its range by 1.3 times, this may require hardware modifications or special calibration methods, but it will affect the accuracy and stability of the sensor. Furthermore, this may violate the manufacturer’s regulations, resulting in the warranty for the sensor becoming invalid. In general, for such requirements, I recommend that you replace it with a sensor that has a larger range, such as a PT1000, or consider using other types of temperature sensors with different temperature ranges. If it is inevitably necessary to adjust the range of the PT100, it is recommended that you consult the manufacturer or qualified technical personnel to understand the possible options and associated risks. .
It can’t be expanded; a heat exchange thermocouple is needed{:9001:}
PT100 is generally used up to around 400 degrees; it can no longer function at higher temperatures