for HP 42S
Pt100 - Pt100-1997 Platinum RTD (Resistance Temperature Detectors) Resistance V.S. Termperature function

Usage
Resistance → Temperature conversion [SOLVER] [Pt100] Resistance [R] [Temp]
Temperature → Resistance conversion [SOLVER] [Pt100] Temperature [Temp] [R]
Variables
MEM "R"    : resistance [Ω]
MEM "Temp" : temperature [°C]
Callendar-Van Dusen equation:
R_T = R_0 (1 + A T + B T^2 + C T^3 (T - 100))
RT : Resistance [Ω] at temperature T [°C]
R0 : Resistance [Ω] at 0 °C
T             : Temperature in °C
A             :  3.9083 × 10-3
B             : -5.775  × 10-7
C             : -4.183  × 10-12 | -200 ≤ T < 0 
              :  0               |  0 ≤ T ≤ +650 

The equation is applicable for -200 ≤ T ≤ +650
Pt100 Resistance V.S. Temperature
Resistance V.S. Temperature
R : Resistance    Ω
T : Temperature    

Program list for HP 42S (Rev.1.00 Jan. 24, 2010)
"Pt100" : Pt100-1997 RTD function
To be used in the SOLVER
01 LBL "Pt100"
02 MVAR "Temp" 
03 MVAR "R"
04 RCL "Temp"
05 ENTER
06 ENTER
07 ENTER
08 X>0?
09 100
10 100
11 -
12 -4.183E-12
13 ×
14 × 
15 -5.775E-7 
16 +
17 ×
18 3.9083e-3
19 +
20 ×
21 1
22 +
23 100
24 ×
25 RCL- "R"
26 .END.
Download 'Pt100' (raw program file for the Free42)

SEE ALSO


APPENDIX

Program library for the HP 42S

REFERENCES
[1] JIS C 1604-1997
[2] IEC 60751 Amd.2-1995

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