Return to TheElectricBrewery.com
  [ Shop ]   [ Building ]   [ Using ]   [ Recipes ]   [ Testimonials ]   [ Gallery ]   [ FAQ ]   [ About Us ]   [ Contact Us ]   [ Newsletter ]

Log inLog in   RegisterRegister   User Control PanelUser Control Panel   Private MessagesPrivate Messages   MembershipClub Memberships   SearchSearch   MemberlistMemberlist   Photo AlbumsPhoto Albums   Forum FAQForum FAQ

PID Issue or Temp Probe Issue...Or????

 
Post new topic   Reply to topic   Printer-friendly view    TheElectricBrewery.com Forum Index -> Electric Brewing
View previous topic :: View next topic  
Author Message
boondocksaint1811




Joined: 04 Jan 2015
Posts: 29
Location: Chesapeake, VA


PostLink    Posted: Mon Feb 28, 2022 2:49 am    Post subject: PID Issue or Temp Probe Issue...Or???? Reply with quote


        Register to remove this ad. It's free!
Hey all,

So I was doing a cleaning cycle in my BK today just running some PBW dissolved in 12G of water through my wort pump and back in to the BK. Had the BK PID set at 170 degrees and for some reason the temp kept overshooting. The PID was set to manual at 100% and even when I turned it down to 85% it kept overshooting the 170 I set it at. It went all the way up to 180!

Not sure if there may be an issue with my PID or maybe the temp probe? I'm coming back to brewing after a long overseas hiatus so had to go back through Kal's set up instructions. Thinking maybe I'll run the auto-tune cycle on my BK PID unless somebody has some other insight to share?

Thanks all. Cheers.
~JG
Back to top
kal
Forum Administrator



Joined: 12 Dec 2010
Posts: 10990
Location: Ottawa, Canada

Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter


PostLink    Posted: Mon Feb 28, 2022 2:58 am    Post subject: Reply with quote

Hi!

Make sure you're using the PID correctly. If you've set up the boil PID per our instructions it can be used in both MANUAL (% duty cycle) and AUTO (temp based) modes. It's possible to be in MANUAL mode but be displaying the AUTO (temp based) settings. Press the SET button to switch the display mode. My guess is that you're just displaying the wrong mode.

For more, see: https://shop.theelectricbrewery.com/pages/brew-day-step-by-step

The top value on the PID ("Process Value" or PV) is what the temp probe is measuring. It's just showing what it sees and then the PID reacts accordingly. You can use a known accurate thermometer to confirm per the temp probe calibration instructions here for setting the PID "Pb" temperature offset: http://www.theelectricbrewery.com/control-panel-setup

Kal

_________________
Our new shop with over 150 new products: shop.TheElectricBrewery.com
We ship worldwide and support our products and customers for life.
Purchasing through our affiliate links helps support our site at no extra cost to you. We thank you!
My basement/bar/brewery build 2.0
Back to top
View user's photo album (21 photos)
boondocksaint1811




Joined: 04 Jan 2015
Posts: 29
Location: Chesapeake, VA


PostLink    Posted: Tue Mar 01, 2022 12:47 pm    Post subject: Reply with quote

Ah, so I should've been in Automatic mode for specific temps. Similar to when doing hop stands, etc, correct?

Thanks, Kal! Much appreciated!
Back to top
kal
Forum Administrator



Joined: 12 Dec 2010
Posts: 10990
Location: Ottawa, Canada

Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter


PostLink    Posted: Tue Mar 01, 2022 1:31 pm    Post subject: Reply with quote

Correct. If you want to hold at a specific temperature, you need to use AUTO mode.

MANUAL mode is % duty cycle, like the knobs on your stove that probably go from 0-10. Nothing to do with temperature. If you put a pot of water on the stove at 1 or 10, both will eventually get to boiling temperature (212F). One just takes longer than the other.

Kal

_________________
Our new shop with over 150 new products: shop.TheElectricBrewery.com
We ship worldwide and support our products and customers for life.
Purchasing through our affiliate links helps support our site at no extra cost to you. We thank you!
My basement/bar/brewery build 2.0
Back to top
View user's photo album (21 photos)
Display posts from previous:   
Post new topic   Reply to topic   Printer-friendly view    TheElectricBrewery.com Forum Index -> Electric Brewing All times are GMT
Page 1 of 1
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum



Forum powered by phpBB © phpBB Group