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huaco
Joined: 05 Apr 2012
Posts: 1506
Location: Burleson Texas
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 Link Posted: Fri Aug 03, 2012 9:53 pm Post subject: Calibrating Temp Probes. Did I miss it somewhere? |
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One or two of my temp probes may need calibration. Is there a guide on doing this? Did I just miss it somewhere? I already programed the PID's. I have not done an auto tune yet because I wanted to make sure they were calibrated first. Don't know if it makes a big difference if it is done before of after calibration though...
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Spike Innovations
TheElectricBrewery.com manufacturer
Joined: 26 Feb 2011
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Location: ME
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huaco
Joined: 05 Apr 2012
Posts: 1506
Location: Burleson Texas
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| Link Posted: Sat Aug 04, 2012 12:29 am Post subject: |
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Thanks...
Wow. I guess somehow I just completely looked over that! Crazy.
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kellzey
Joined: 04 Aug 2011
Posts: 580
Location: Orlando, FL
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| Link Posted: Sat Aug 04, 2012 12:55 am Post subject: |
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Get a good quality digital thermometer (like a ThermaPen) and you can use it to verify the accuracy of the RTD sensors.
I just happened to check the accuracy of mine a few nights ago and they were spot on!
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kal
Forum Administrator
Joined: 12 Dec 2010
Posts: 11122
Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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jeremy2027
Joined: 23 Apr 2016
Posts: 12
Location: Groves, TX
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| Link Posted: Tue Sep 13, 2016 12:09 pm Post subject: |
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I hate to dig up an old thread but couldn't you calibrate your probes in their location by pumping hot water and through them and measuring the output back into the kettle? Do you think there is much temperature loss once it leaves the valve, runs through the pump and re-enters the kettle?
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kal
Forum Administrator
Joined: 12 Dec 2010
Posts: 11122
Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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| Link Posted: Tue Sep 13, 2016 1:11 pm Post subject: |
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| jeremy2027 wrote: | | Do you think there is much temperature loss once it leaves the valve, runs through the pump and re-enters the kettle? |
I would say that's too far away to be used as way of calibrating. Ideally would be inline right after the temp probe. I built a small Tee with QD's on it and a fitting to be able to measure with the ThermaPen immediately after the temp probe. There was a thread about it here 3-4 years ago.
Kal
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rcrabb22
Joined: 23 Dec 2010
Posts: 462
Location: Illinois
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| Link Posted: Tue Sep 13, 2016 4:57 pm Post subject: |
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| Quote: | | I built a small Tee with QD's on it and a fitting to be able to measure with the ThermaPen immediately after the temp probe. There was a thread about it here 3-4 years ago. |
I remembered that post and you prompted me to search for it as it has been a back burner project for me.
Here is how chastuck built a Thermapen inline probe fitting
http://www.theelectricbrewery.com/forum/viewtopic.php?t=27917
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