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Ozito heatgun meltdown and Type K thermocouple

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  • Ozito heatgun meltdown and Type K thermocouple

    > : ;D

    I was doing a dry run with my Corretto-in-progress, testing my self-fibreglass-insulated thermocouple up to 260*C, when I noticed the heatgun melting down instead!!!!

    Blah.

    The thermocouple exposed tip was melting back, so Id better not take it over 230*C again, and the white and blue covering of the thermocouple was beginning to yellow under the fibreglass.

    EDIT update: everything seems fine when I keep it below 220*C, but I have to keep the HG nozzle out of the pan, which is a small one anyway so heat distribution is pretty easy. Out with a fan to keep the HG cool... ahhh, of course that works!

    Consistency in temps starts to show on my DMM.

  • #2
    Re: Ozito heatgun meltdown and Type K thermocouple

    I think youll find that a dry run may also cause it to get too hot. Better off putting some beans in & doing the real thing. You dont want to overheat the pan & drive coupling if you can avoid it. Id also recommend a back-up HG just in case the ozito burns out like mine did. It didnt last very long at all.

    Evan.

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    • #3
      Re: Ozito heatgun meltdown and Type K thermocouple

      Intellidepth, have posted a couple of things in your "Tips for first ever roast?" thread that addresses the heat issue.

      Could even look at half a lid, to shield the HG a bit from the heat coming back.


      Cheers..................Sean

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      • #4
        Re: Ozito heatgun meltdown and Type K thermocouple

        Originally posted by scooter link=1214624638/0#2 date=1214825298
        Could even look at half a lid, to shield the HG a bit from the heat coming back.
        Yep,

        Thats what I do Sean and it seems to work pretty well. Also seems to have the added benefit of creating a slightly more uniform and hotter roasting environment, which is good for roasting larger batches (in my case anyway ).....

        Mal.

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