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Good PID for Silvia? - WAS: PID Me

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  • Good PID for Silvia? - WAS: PID Me

    Could anyone tech savvy tell me if these specs are suitable for my purposes? Id like to PID my Silvia. Will it also control the steam temp?

    CONTROL TYPE : ON/OFF ,PID WITH AUTO TUNING , HEATING/COOLING.

    SUPPLY : 100-240Vac 50/60Hz

    INPUT :MULTIRANGE INPUT . user selectable

    THERMOCOUPLE ( 10 TYPES) What does this mean?

    RTD (2 TYPES)

    CURRENT (4/20milliamps , 0/20milliamps)

    VOLTAGE (4TYPES , 0/10Vdc, 0/5Vdc ,1/5Vdc , 0/1Vdc)

    OUTPUT : RELAY OUTPUT 3A 250VAC(RESISTIVE LOAD)

    ALARM: TWO ALARM OUTPUT CONTACT RATED AT 1A

    CONTENTS : CONTROLLER . MOUNTING BRACKET , INSTRUCTION MANUAL

  • #2
    Re: Good PID for Silvia? - WAS: PID Me

    [movedhere] Brewing Equipment (non-machine specific) [move by] Javaphile.
    Toys! I must have new toys!!!

    Comment


    • #3
      Re: Good PID for Silvia? - WAS: PID Me

      You doing this as a DIY?

      There is a great sticky and instructions at the top of the 500-1500 section by Wsully.

      Other options are a PIDkits unit, probably around the $400 make inc post. They are expensive though.

      Do you really need a PID with steam control???

      Comment


      • #4
        Re: Good PID for Silvia? - WAS: PID Me

        DIY Indeed.

        No idea, steam control sounded cool, i must confess i have no idea what it does but that other CSers love it.

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        • #5
          Re: Good PID for Silvia? - WAS: PID Me

          I opted for the shot timer, I love that.

          Comment


          • #6
            Re: Good PID for Silvia? - WAS: PID Me

            I dont have a PID yet. I cant justify the cost of a PIDKit at the moment because Im just about to embark on roasting, but I was going to go the DIY route of making my own too but didnt get too far.

            As far as my understanding goes with the PID the steam function will keep your steam at a steam temperature. At the moment its just like the brew thermostat where there is a big temperature difference between the element being on and off. The PID just controls this tighter.

            PM me your email address tashie I might have some info of use to you in your quest.

            Comment


            • #7
              Re: Good PID for Silvia? - WAS: PID Me

              As far as my understanding goes with the PID the steam function will keep your steam at a steam temperature.  At the moment its just like the brew thermostat where there is a big temperature difference between the element being on and off.  The PID just controls this tighter.
              My PID does not have steam control so I have no experience of this function but the way I look at it is once I start steaming the element cant maintain the temperature therefore it wont switch off on me. I tend the boiler by bleeding water off to create some headspace, let the temp rise and bleed off steam till it stops spluttering. The PID gives me the temperature readout so I bleed some water off at 100 degrees and then bleed steam off a couple of times before commencing steaming at 140 degrees the thermostat will want to cut off at I think 145 degrees but the boiler wont get that high, the element cant keep up once steaming starts. If I need to leave it I just turn the steam off, turn it back on when I return.
              I like the shot timer, it allows me to monitor the shot duration, I have it set for 30 seconds and aim stop the shot at 25 seconds. I find it helps me keep the grinder adjusted.

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              • #8
                Re: Good PID for Silvia? - WAS: PID Me

                MLG have the same Watlow 935 used for $199. +$25 for the shot timer.

                THE ORIGINAL
                Single line display, 1/32 DIN size (45 mm x 22 mm) Temperatures displayed to nearest whole degree. Optional shot timer add-on kit now available for $25.

                Thats pretty expensive considering its used and you can buy a Watlow SD3C for only $81US more.

                Comment


                • #9
                  Re: Good PID for Silvia? - WAS: PID Me

                  [QUOTE=5B444E5F424C40485F2D0 link=1263349474/6#6 date=1263456997]
                  My PID does not have steam control so I have no experience of this function but the way I look at it is once I start steaming the element cant maintain the temperature therefore it wont switch off on me.
                  Why do what I did vr....

                  Takes about 2 seconds to up the Setpoint to 125C (for steam) and when youre finished, another 2 seconds to reset back to Brew Temp.

                  Youll notice a hell of a difference with the Steam Capacity mate, since the PID will hold the temperature much tighter than the original t/stat and as a result, the second that the boiler temperature dips below the Setpoint the element is switched On, not after a dip of 10 degrees or more from the t/stat.

                  Turned my Mokita into a Steaming Demon mate and never looked back.... 8-)

                  Mal.

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                  • #10
                    Re: Good PID for Silvia? - WAS: PID Me

                    Originally posted by 5D485A41404C290 link=1263349474/0#0 date=1263349473
                    CONTROL TYPE : ON/OFF ,PID  WITH AUTO TUNING , HEATING/COOLING.

                    SUPPLY : 100-240Vac 50/60Hz

                    INPUT :MULTIRANGE INPUT . user selectable

                    THERMOCOUPLE ( 10 TYPES) What does this mean?

                    RTD  (2 TYPES)

                    CURRENT (4/20milliamps , 0/20milliamps)

                    VOLTAGE  (4TYPES , 0/10Vdc, 0/5Vdc ,1/5Vdc ,  0/1Vdc)

                    OUTPUT : RELAY OUTPUT 3A 250VAC(RESISTIVE LOAD)

                    ALARM:   TWO ALARM OUTPUT CONTACT RATED AT  1A                                                                  

                    CONTENTS : CONTROLLER . MOUNTING BRACKET , INSTRUCTION MANUAL
                    This is the killer Tashie.....

                    A Relay Output is of no use at all for small boiler control. You need a Pulsed DC Output designed to interface with a Solid State Relay (SSR). Will last forever and provide a higher level of response....

                    Mal.

                    Comment


                    • #11
                      Re: Good PID for Silvia? - WAS: PID Me

                      Originally posted by 466B6F636E020 link=1263349474/9#9 date=1263462339
                      You need a Pulsed DC Output designed to interface with a Solid State Relay (SSR).
                      Yep, what he said.

                      Comment


                      • #12
                        Re: Good PID for Silvia? - WAS: PID Me

                        Hi Mal
                        I personally cant see the advantage in steam control if I start steaming before the steam thermostat shuts off the element will remain on throughout it cant keep up therefore it wont turn off on me I get full pressure throughout.
                        I like the shot timer and wouldnt give it up for steam control.
                        Just my opinion though.

                        Comment


                        • #13
                          Re: Good PID for Silvia? - WAS: PID Me

                          Why not try it vr?

                          Cant hurt and Im speaking from my own personal experience with a very similarly specd machine. Sure, the t/stat will switch on once the boiler water temperature falls below its (the t/stat) particular dead-band. Compared to a properly configured PID Controller though, this will be up to 10-15C below the point at which the PID Controller will operate....

                          I will even go so far as to swear by it.....

                          Mal.

                          Comment


                          • #14
                            Re: Good PID for Silvia? - WAS: PID Me

                            Are you talking about steam control Mal or increasing the PID up to steam temp?

                            Comment


                            • #15
                              Re: Good PID for Silvia? - WAS: PID Me

                              Originally posted by 736C66776A64686077050 link=1263349474/13#13 date=1263548175
                              Are you talking about steam control Mal or increasing the PID up to steam temp?
                              If you have Steam Control, use that; if not, just reset the controllers setpoint to 125C or so and Bobs your uncle... 8-)

                              Mal.

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