If you can find a PT100 measuring bridge of lab quality,
This Smath document will return °C from measured Ω.
On the other hand, if you have a decent scientific calculator,
plug/code the three functions. If your Pt100 lab bridge is
transportable in the jungle ... you will have plenty °C in hand.
Web search is pure waste of time. The only valid item is the
eit90 from the BIPM [Bureau International des Poids et Mesures].
A long lecture necessary to understand that final calculator.

Enjoy/comment ... need more, please feel free.

Jean



Genfit Techniques_16 [Pt100] Copy.sm (276 KiB) downloaded 68 time(s).

Wrote

A long lecture necessary to understand that final calculator.

1. Segments have been improved
2. Calculator refactored more intuitive.

Inst_Type Pt100 Calculator Copy.sm (286 KiB) downloaded 64 time(s).
Genfit Techniques_16 [Pt100] Copy.sm (283 KiB) downloaded 58 time(s).

Wrote

1. Segments have been improved
2. Calculator refactored more intuitive.

1. typo corrected in 'β' ... f(x,β)
2. added CY7 cryogenic

Inst_Type Pt100 Calculator Copy.sm (304 KiB) downloaded 61 time(s).