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PID selection guidance needed.

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  • PID selection guidance needed.

    I've been looking at PID's online (e-bay) and I'm quite overwhelmed at the amount of options available! What are the basics that would be needed to run an oven? Manual/auto? Dual digital? I planned on using an SSR rather than contactors as they seem to have a greater switching capacity. Basically for ease of ordering/shipping/price I've narrowed it down to mypin, sestos & rex.
    I'd like to order from one of the vendors that has the PID, SSR, thermocouple & heatsink packaged as a kit (assuming that they must work together)

    Any direction would be appreciated!

  • #2
    Re: PID selection guidance needed.

    Before you order a packaged set of components be sure the components are capable of handling your element requirements(amperes). As for a recommendation I wouldn't recommend any of the cheap Asian junk pids. You would be better served to find a decent used Watlow,. The model 93's and SD31's work well. The current offering EZ-Zone PM's also work well for ovens.

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    • #3
      Re: PID selection guidance needed.

      So for an oven being @32"x32"x60" I figure 2/3000w elements are going to draw @27a. So a 40a SSR would be ok? That's the only item where current draw is an issue?

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      • #4
        Re: PID selection guidance needed.

        Originally posted by FasYankee View Post
        So for an oven being @32"x32"x60" I figure 2/3000w elements are going to draw @27a. So a 40a SSR would be ok? That's the only item where current draw is an issue?
        That's correct, a 40A relay would be fine.

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