PT100 + Themocouple config



  • Hello

    After having problem with termistor i bought PT100 sensor and Thermocouple for pt100.
    its arriving tomorrow and i want to know how should be my config for pt100 sensor

    Below is my current config for heater section

    M143 S260 ; Set maximum heater temperature to 260C
    M143 H0 S110
    M305 P0 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M305 P1 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 1
    M307 H0 A357.9 C296.8 D2.6 B0 S0.8
    M307 H1 A730.8 C243.5 D6.2 B0 S0.8

    What i have to change to adapt pt100 sensor?


  • administrators

    See the PT100 page linked to form the Hardware and Wiring section of the wiki. It covers the firmware configuration too.



  • is this correct?

    M143 S260 ; Set maximum heater temperature to 260C
    M143 H0 S110
    M305 P0 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M305 P1 X200
    M307 H0 A357.9 C296.8 D2.6 B0 S0.8
    M307 H1 A730.8 C243.5 D6.2 B0 S0.8


  • administrators

    Yes that looks current for a single PT100 sensor used to measure the hot end temperature.


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