MES30 and auber, inaccurate temps?

[johnnyftw]

Have a new MES30 with an auber PID controller installed, rewire done properly, PID set from the auber thread here, everything works...but I'm getting different temps between the auber sensor and my Thermoworks x4. The x4 seems to be lagging behind the auber by about 20f but has settled around 10f difference after sitting for a bit. Both sensors are placed on the bottom rack, rear center.

Is this difference enough to be concerning? If so, how do I determine which one is accurate?

 

[chopsaw]

I have the same issue . MES 30 , Auber 1510 . Auber probe centered in the back wall .
I've checked it with 3 different therms , and they all read different .
I just go by what the Auber says . Food comes out fine .
I wouldn't worry about 10 degrees myself . Mines more than that .

 

[normanaj]

I have the 1211H on a MES30.Both my ThermoPro TP829 and InkBird IBT-4XC read within a degree or two of the Auber in my MES,though it does take a bit of time to get to that point.

 

[zwiller]

Is this difference enough to be concerning? If so, how do I determine which one is accurate?

I think you're ok but to answer you question, you'd need to verify by comparing with a certified NIST rated therm but that's a pretty deep and expensive rabbit hole... I trust the Auber. The Auber sensor:
https://www.omega.com/en-us/resources/rtd-hub

 

[Winterrider]

Get kinda funky temps if I don't keep the Auber tip clean ( alcohol pads)

 

[johnnyftw]

After the 235f test burn last night, it seemed the x4 was starting to pull within <10F of the auber, I also noticed there is either a delay from the x4 main unit to the remote unit, or the remote unit just displays averages because it's almost always 1-2f off from the main unit.

Got an 8lb pork butt in there cooking at 275f right now, with apple wood chips.

I don't have that pellet tray most folks around here use, instead I opted for the MES side-mount smoker box so I could do low-temp smokes on cheese, and it helps reduce the number of times the smoker door needs opened. I bought a roll of that high temp insulation strip for grills and sealed that side box up well, little to no smoke leakage from it, all rolls in to the main smoker.

 

[choochooman442]

You can check the Thermoworks or any thermometer by using boiling water, 212 degrees at sea level lower with elevation.

 

[tallbm]

Have a new MES30 with an auber PID controller installed, rewire done properly, PID set from the auber thread here, everything works...but I'm getting different temps between the auber sensor and my Thermoworks x4. The x4 seems to be lagging behind the auber by about 20f but has settled around 10f difference after sitting for a bit. Both sensors are placed on the bottom rack, rear center.

Is this difference enough to be concerning? If so, how do I determine which one is accurate?

Hi there and welcome!

I'm with choochooman442 and 1st thing to do is test the probes in boiling water and see how on/off they are.
Then as people have mentioned, even next to each other they may read differently. The key is they are in the ball park.

On my lower rack I have 3 different temp levels across the rack. Back left is hottest, middle center is middle, forward right is coldest. The spread from highest to lowest is no more than about 15-20F depending on the amount of meat and deflection of heat and airflow. I can live with that because it is consistent so I just put the thinner meats to the right side of a rack and the thicker to the left side :D

 

[Kvgsqtii]

You can also test a thermometer with ice water. When I did steam plant chemistry we verified our thermometers once a week with an ice water bath and then a boiling water bath.

https://extension.sdstate.edu/how-calibrate-meat-thermometer

But as stated above, within 10*f is close enough for meat.

 

[river100]

10 degrees is not much between 2 sensors. The physical size and style of sensor makes a big difference. The best way to test the differential between the 2 is to tie them together with bare copper wire. One might lag behind the other but tied together they should match once they are saturated .

Have a new MES30 with an auber PID controller installed, rewire done properly, PID set from the auber thread here, everything works...but I'm getting different temps between the auber sensor and my Thermoworks x4. The x4 seems to be lagging behind the auber by about 20f but has settled around 10f difference after sitting for a bit. Both sensors are placed on the bottom rack, rear center.

Is this difference enough to be concerning? If so, how do I determine which one is accurate?

 

[river100]

When I got my Auber 6 years ago I tested the probe and set the calibration to -2 degrees to bring it in line with boiling water temp.
The last couple smokes I've noticed that the Auber temp was about 15° cooler then my Morpilot temp unit. After today's smoke I decided it was time to test my probes and start looking for a new temp unit as surely my cheap Morpilot is going bad.
So all 6 Morpilot temp probes went into a pot of water along with the Auber probe and much to my amazement the Auber lagged 15° behind from 50° to 205°. Also to my amazement all 6 Morpilot probes stayed within 2° of each other until they topped out and held steady at 205°.
Guess it's time for a new Auber probe but in the meantime I've adjusted the Auber calibration to +15 and will keep an eye on my temps trusting the cheap Morpilot over Auber.
View attachment 709421View attachment 709422

That's interesting. What type of probe is your Auber unit using? Is it a 3 wire ?