Resistance-Temperature Curve For A - National Instruments Module SCXI-1503 User Manual

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defined as the change in RTD resistance from 0 to 100 C, divided by the
resistance at 0 C, divided by 100 C:
where
R is the resistance of the RTD at 100 C.
100
R is the resistance of the RTD at 0 C.
0
For example, a 100
139.11 at 100 C.
Figure 4-3 displays a typical resistance-temperature curve for a 100
platinum RTD.
480
400
320
240
160
80
0 80 160 240
Figure 4-3. Resistance-Temperature Curve for a 100
R
100
( / / C)
= -----------------------------
R
0
platinum RTD with
320 400 480 560 640 720 800 880
4-7
Chapter 4 Theory of Operation
R
–
0
100 C
= 0.003911 has a resistance of
Platinum RTD, = 0.00385
SCXI-1503 User Manual
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