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What is the difference between pt100, pt500 and pt1000 RTDs?
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Answer Posted / ishtiyaqp
This number 100,500,1000 refers to the reference resistance of the Rtd.meaning pt 100 means at 0 degree temp it gives 100 ohm resistance ,similarly pt 500 gives, 500 ohm resistance at 0 degree.but not questions arrise why we go for higher resistance and the ans is simple for good sensitivity and accuracy.
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