Answer / abdul rehman

y = mx + b

where:
y = Output (voltage in this case)
m = Span Adjustment
x = Input
b = zero adjustment (offset)

PT RTD Range: -200 to 500 degree celsius If I configured in DCS Lower range and Upper range . In face plate it shows red colour due to overa range how was the characteristics look If the temperature is more than operating range. how was the characteristics look . whether its in Resistance vs Temperature curve is Linear or Non linear

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what is rtd

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