"Expert Grill" (Wal-Mart) probes. Anyone else use them? Your settings?


 
J

JBail

New member
Being the "Frugal" person I am. I saw that wal-mart has temperature probes for their thermometers. Since they are $8 for a two pack, I figured it was worth a gamble. In the config page of the heater meter I set them up as TX-1001X-OP (Thermoworks Pro Series) with the resist value at 10000 and 0 offset.

https://i.imgur.com/T1qcz92.jpg


They seem to work. I took an insulated cup filled with ice and water and stirred them using the probes and compared it to stirring it with my Thermapen and it's within .2(F) degrees.

However, I feel I am missing something. I have not done any PID tuning or anything other than plug and play. I am going to assume I need to do some tuning because the 1hr graph is showing some funky oscillations. If anyone has dealt with the probes, please let me know your settings so I have something to start with. I am not clear on PID tuning. Searched the forums but there isn't really any ELI5 (explain like I'm 5) guides or anything I could find.

https://i.imgur.com/YBA9xAE.png

Any help would be appreciated.
 
You don't need to change the PID settings when changing probes. Does the noise go away when only using 1 probe? The fluctuation is only 0.5F, which you wouldn't see on a scaled out graph where the scale was more than 1 degree.

For a test you could put them in the oven and ramp up the temps to 300 and then let it cool down, see what the graph looks like then.
 
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