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Good PID for Silvia? - WAS: PID Me

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  • #16
    Re: Good PID for Silvia? - WAS: PID Me

    My OT2 is configured as the shot timer I use it as my PI reference, I dont really feel like wiring in the SSR for steam control and reconfiguring the pid, I could just up the PID temp for steam and see how that goes.

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    • #17
      Re: Good PID for Silvia? - WAS: PID Me

      Raising the set point to 150 degrees didnt work to well, poor little PID had to try and make sense of paramaters adjusted to suit brew temp and set point at steam temp.

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      • #18
        Re: Good PID for Silvia? - WAS: PID Me

        Originally posted by 223D37263B35393126540 link=1263349474/16#16 date=1263894288
        Raising the set point to 150 degrees didnt work to well, poor little PID had to try and make sense of paramaters adjusted to suit brew temp and set point at steam temp.
        Hmmm....

        That sounds a bit strange mate. Raising the Setpoint shouldnt make any appreciable difference to the behaviour of the controller - It is after all, the same physical process variable, just a higher temperature. I wouldnt have gone as high as 150C though, 125C should have been plenty high enough.....

        Mal.

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        • #19
          Re: Good PID for Silvia? - WAS: PID Me

          That was quick Mal
          P parameter kicks in and and turns off element slowing temp rise, 125C I steam at 140C just by watching the PID readout, I guess Im just set in my ways, cant teach an old dog new tricks mate.

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          • #20
            Re: Good PID for Silvia? - WAS: PID Me

            Originally posted by 69767C6D707E727A6D1F0 link=1263349474/18#18 date=1263895634
            That was quick Mal
            P parameter kicks in and and turns off element slowing temp rise, 125C I steam at 140C just by watching the PID readout, I guess Im just set in my ways, cant teach an old dog new tricks mate.
            That sounds a bit odd too mate but I guess if youve been happy with boiler temperature management to date, theres no need to go changing things around at this late stage. What ever works for you, works; and thats the main thing....

            Cheers,
            Mal.

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