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Calculate the appropriate millivoltage values of a Thermocouple

Calculate the appropriate millivoltage values and potentiometer resistances to simulate a thermocouple at the desired temperatures, assuming the ambient temperature at the transmitter is 72 oF and the transmitter has cold junction compensation enabled:

simulate a thermocouple

Calculate the following :

  • Tsimulate = 550 oF ; Vinput = _____ mV ; Rpot = _____ Ω
  • Tsimulate = 300 oF ; Vinput = _____ mV ; Rpot = _____ Ω
  • Tsimulate = 150 oF ; Vinput = _____ mV ; Rpot = _____ Ω

Answer :

  • Tsimulate = 550 oF ; Vinput = 14.516 mV ; Rpot = 741.39 Ω
  • Tsimulate = 300 oF ; Vinput = 6.815 mV ; Rpot = 347.80 Ω
  • Tsimulate = 150 oF ; Vinput = 2.278 mV ; Rpot = 116.20 Ω

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