Pt100-1997 Temperature-Resistance conversion rev.1.0 for HP 42s

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 : 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

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)

APPENDIX

Program library for the HP 42S

ABC2XY - Triangulation, tree known distance to the coordinates conversion
AGM - Arithmetic-Geometric Mean
AVR - Adjustable voltage regulator (such as LM317 or TL431) solver program
BPFFL - Center frequency and Q of a Fliege band-pass-filter
BPFMF - Gain coefficent, center frequency and Q of a multiple-feedback band-pass-filter
E24 - Find nearest fraction(s) in the E24 numbers
eW - exponent of Lambert W function
Factr - Factor a positive integer
Frac - Fractional approximation
LCM/GCD - LCM and GCD of two positive integers
LCR - Resonant frequency of a LC resonator
LPFMF - Gain coefficent, center frequency and Q of a multiple-feedback low-pass-filter
L• - Inductanse of a straight conductor of circular section
L- - Inductanse of a straight conductor of thin flat section
NTC10K - NCP21XV103 NTC thermistor Temperature V.S. Resistance function to solve
OST - SOLVE alternative, numerical solution of a lenear equation using Ostrowski's method
RI - Rational interpolation
Pt100 - Pt100-1997 Temperature V.S. Resistance function to solve
μZw, μwZ - Synthesize/Analyze microstrip transmission line
cbcpw - Analyze Conductor-backed Coplanar Wave guide / Complete elliptic integral of the first kind K(k)
Vn - Input refered voltage noise of an operational amplifier
Z→S - Impedance Z to S₁₁ scattering parameter conversion
ZdSL - Differential impedance of an edge coupled stripline solver program

REFERENCES

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

SEE ALSO

APPENDIX