and . . . . . ?
RTDs are NOT linear in the range of interest to us
the inst will have one curve, the sensor(s) another(s)
you need to cal (or have caled) your RTD+inst in 5°C increments from 20 to 60° for each sensor, plot and derive a curve; then use that equation to correct your readings from that particular sensor
- an indicated temp in hundredths will seldom (aka never) be the actual temp
N.B. never use a differential thermometer as the temp lag depends on the flow rate
only if the temps are dead flat (seldom) can simultaneous readings be taken
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