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:

Calculate the following :

• T_simulate = 550 ^oF ; V_input = _____ mV ; R_pot = _____ Ω
• T_simulate = 300 ^oF ; V_input = _____ mV ; R_pot = _____ Ω
• T_simulate = 150 ^oF ; V_input = _____ mV ; R_pot = _____ Ω

Answer :

• T_simulate = 550 ^oF ; V_input = 14.516 mV ; R_pot = 741.39 Ω
• T_simulate = 300 ^oF ; V_input = 6.815 mV ; R_pot = 347.80 Ω
• T_simulate = 150 ^oF ; V_input = 2.278 mV ; R_pot = 116.20 Ω

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