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CharcoalRoaster
11/04/2019 1:58 AM
+1 snwcmpr

snwcmpr
11/03/2019 2:16 AM
Can we make the shoutbox UNAVAILABLE until a member has a certain number of posts?

allenb
11/01/2019 2:20 AM
Funopt, please post in the gas and electric heat sources forum

Funopt
10/30/2019 5:17 AM
Can someone help me for using forced propane burner as my heating element. I rather want to use lpg than electric. Do you think it would work

snwcmpr
10/22/2019 5:31 AM
Thanks to you all....... I was not sleeping ... I stayed awake worried about it all. :)

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Need help rewiring new popper
Gullygossner
I studied your photos but I could not see how or what the TC sleeves were grounded to.

I tried grounding the metal of the popper to earth via the mains power with no success.

I do not have any switching regulator in my setup. 110v heater, 110v fan and the arduino is powered via my macbook air which is running on battery power during operation.
 
marcov
My TC sleeves are tied to the metal parts of the popper, hence they are grounded.

I suggest you anyway to keep the metal of your popper grounded to earth for your safety.

I played around a bit before finding a solution that worked for me. Start by trying to undertand what's the source of your bad readings, so that you know what needs to be fixed.
 
renatoa
Or use unshielded probes.
If not a noisy medium, like brushed motors in the proximity, then unshielded works fine. I am using unshielded probe in my roaster with under 0.1 C reading stability.
 
Gullygossner
I will ground the metalic body of the popper again and see what happens.

I started out with a shielded probe but figured that was the source of my issue so cut the probe off and tried with exposed thermocouple ends. I have a feeling that the AC fan is the source of the issue, but rectifying the problem has been puzzling.
 
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