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Instrumentation & Controls

RTD Resistance to Temperature

IEC 60751 Callendar–Van Dusen platinum RTD. Default R0 = 100 Ω (Pt100).

Instrumentation & ControlsThermal & HVAC

IEC 60751 Callendar–Van Dusen platinum RTD. Default R0 = 100 Ω (Pt100).

App id: INST-22. Reference version 1.0.

How to fill it

Fill the inputs. The tool shows the outputs.

On the tool screen, Calc is the working sheet. Presets stores values you reuse. Reference is the formula, assumptions, and provenance below.

Formula

R(T) = R0 (1 + A T + B T²)  [T ≥ 0 °C]

Inputs

NameUnit
Resistance (camera)ohm
R0 (100 = Pt100) (optional)ohm

Outputs

NameUnit
Temperature (hero result)C

Diagnose

This tool does not attach diagnose observations.

Assumptions

  • Leave R0 blank for Pt100. Enter 1000 Ω for Pt1000. Not a DIN 43760-only shortcut.

Provenance

  • IEC 60751 A = 3.9083×10⁻³, B = −5.775×10⁻⁷, C = −4.183×10⁻¹². Below 0 °C uses the C term.

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