Coldbreak Brewing HERMS Giveaway!

HomeBrewSupply AMCYL Brew Kettle Giveaway!


Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Johnson A419 Probe mounting location
Reply
 
Thread Tools
Old 10-02-2012, 10:09 PM   #1
Wiggum
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Port Jefferson, NY
Posts: 17
Default Johnson A419 Probe mounting location

Hi all,

Just got my A419. Where is the best place to mount it in the kegerator to get the best readings?

I put the probe directly against the side of a full keg that I have in there. I then took two small foam mouse pads (thicker) and put it against the probe and put a strap around it. I don't know the place to get the best readings. Thought I'd ask

I did 38 degrees, with a 1 differential and 11 minute ASD. My unit holds the temp pretty well so it hardly fluctuates so I stuck with a 1 diff.


Wiggum is offline
 
Reply With Quote
Old 10-02-2012, 11:38 PM   #2
MalFet
/bɪər nərd/
HBT_LIFETIMESUPPORTER.png
Feedback Score: 1 reviews
 
MalFet's Avatar
Recipes 
 
Join Date: May 2010
Location: NYC / Kathmandu
Posts: 8,381
Liked 1331 Times on 887 Posts
Likes Given: 625

Default

Sounds like you've got it figured out. Insulated against the side of the keg is generally where you want it.


__________________
"Be excellent to each other." -Benjamin Franklin
MalFet is online now
 
Reply With Quote
Old 10-02-2012, 11:50 PM   #3
RoKozak
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2012
Posts: 62
Liked 2 Times on 2 Posts
Likes Given: 9

Default

Yup, that's it! I mount it on the middle of my fermenting bucket and duct tape a weather strip foam on the other side for insulation. Some people say to put a glass of water in the fridge to test the temp of what it might be inside your fermenter. What people forget is that fermentation produces heat...and that it's not water inside your carboy/bucket. Cheers
RoKozak is offline
 
Reply With Quote
Old 10-04-2012, 02:11 PM   #4
BobTheFourth
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2012
Location: Lynchburg, VA
Posts: 62
Liked 3 Times on 3 Posts
Likes Given: 2

Default

If you're using it to control the temp of the fridge you are serving out of (which I assume is what you meant by kegerator), I wouldn't use the side of a keg unless you mount it very close to the bottom. Once the level of the keg drops below where the probe is mounted, you won't be getting readings from that thermal buffer anymore. I have my probe in a bomber filled with water, which seems to keep everything at the temperature I want without frequent cycling.

If you're doing fermentation though, then the side of a keg is absolutely the best place.
BobTheFourth is offline
 
Reply With Quote
Old 10-04-2012, 02:17 PM   #5
kh54s10
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
kh54s10's Avatar
Recipes 
 
Join Date: Aug 2011
Location: Tiverton, Rhode Island
Posts: 8,194
Liked 913 Times on 763 Posts
Likes Given: 237

Default

We are assuming you are talking about the temperature probe. With that, what you described is good.

For the control unit - mount it on the outside of the kegerator. Condensation on the inside would not be good for it.
kh54s10 is offline
 
Reply With Quote
Old 10-05-2012, 11:34 AM   #6
Wiggum
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Port Jefferson, NY
Posts: 17
Default

Quote:
Originally Posted by kh54s10 View Post
We are assuming you are talking about the temperature probe. With that, what you described is good.

For the control unit - mount it on the outside of the kegerator. Condensation on the inside would not be good for it.
Yes, was talking about the probe. I was able to snake the probe through the rear of the kegerator without drilling so all is good.

Thanks for all your help everyone.
Wiggum is offline
 
Reply With Quote
Old 10-05-2012, 03:09 PM   #7
SFGiantsFan925
Member
HBT_SUPPORTER.png
Feedback Score: 5 reviews
 
SFGiantsFan925's Avatar
Recipes 
 
Join Date: Aug 2012
Location: East Bay, CA
Posts: 873
Liked 385 Times on 225 Posts
Likes Given: 250

Default

Is this probe waterproof?? I am thinking of placing a mason jar with water in it to maintain the temp better than the probe just sitting in open air in the keezer. Should hold the temp better. Any ideas??
SFGiantsFan925 is offline
 
Reply With Quote
Old 10-05-2012, 03:17 PM   #8
MalFet
/bɪər nərd/
HBT_LIFETIMESUPPORTER.png
Feedback Score: 1 reviews
 
MalFet's Avatar
Recipes 
 
Join Date: May 2010
Location: NYC / Kathmandu
Posts: 8,381
Liked 1331 Times on 887 Posts
Likes Given: 625

Default

Quote:
Originally Posted by SFGiantsFan925 View Post
Is this probe waterproof?? I am thinking of placing a mason jar with water in it to maintain the temp better than the probe just sitting in open air in the keezer. Should hold the temp better. Any ideas??
Why not just attach it to the side of your fermentor?
__________________
"Be excellent to each other." -Benjamin Franklin
MalFet is online now
 
Reply With Quote
Old 10-05-2012, 05:04 PM   #9
SFGiantsFan925
Member
HBT_SUPPORTER.png
Feedback Score: 5 reviews
 
SFGiantsFan925's Avatar
Recipes 
 
Join Date: Aug 2012
Location: East Bay, CA
Posts: 873
Liked 385 Times on 225 Posts
Likes Given: 250

Default

Quote:
Originally Posted by MalFet View Post
Why not just attach it to the side of your fermentor?
Because I will be using it for kegs and draft beer. I just lowered it to cold crash 2 carboys and it seems to be switching off and on a lot more than when I was fermenting. Also, if the probe was in solution, it should be the same temp as the beer inside the kegs.
SFGiantsFan925 is offline
 
Reply With Quote
Old 10-06-2012, 09:06 PM   #10
Wiggum
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Port Jefferson, NY
Posts: 17
Default

I have not started my own beers up again. I'm going to do it as a winter project when work slows down a bit. Right now I have it on a store bought keg. I might end up putting the probe into a beer bottle instead of the side of the keg for the reasons mentioned above when the keg starts to empty.

Will a beer bottle full of water give an accurate temp reading? Is the probe completely waterproof? or would I put it into a zip lock or something to keep it try?


Wiggum is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Johnson a419 probe issue menaceinc Equipment/Sanitation 1 12-24-2013 08:18 PM
What's up with my Johnson a419? Veritas Equipment/Sanitation 9 08-11-2012 01:17 AM
Mounting a Johnson A419 Control steve1nh Equipment/Sanitation 4 09-04-2011 01:53 AM
A419 Temp probe location in Chest Freezer? alexavery Equipment/Sanitation 7 01-24-2011 07:28 PM
Johnson Controls A419 Probe Dan2539 Equipment/Sanitation 1 12-07-2009 09:02 AM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS