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Old 07-20-2010, 12:18 AM   #1
jcav
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I am taking the financial plunge and building a Brutus 10. The stainless stand is at the welder's and I'm trying to make good sound choices in getting her set up. I have learned so much from reading everyone else's builds that are posted on this forum and this is the internet at it's best!

I just want to know if there are any real functionality differences between the two controllers (Love & Auber), and if so why is one better than the other. Or does it just come down to personal preference like Coke or Pepsi? From what I can see I think most people using the Auber controller seem to use RTD temp probes with it. I don't know much about this though.............

Any thoughts would be appreciated. I still have a lot of questions but I have to start somehere. I will post some picks as the build progresses.......


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Old 07-20-2010, 12:55 AM   #2
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Get a PID controller not a thermostat. Auber all the way.


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Old 07-20-2010, 01:02 AM   #3
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Love is a fairly simple, on / off controller great fro situations where the temp doesn't fluctuate a great deal and precise control is less important.

The Auber PID is a "smart" device that will very quickly "pulse" the heat element on/off to allow it to avoid overshooting and precisely maintain temps.

Love = good for ferm chambers & kegorators
Auber/PID = Good for controlling/maintaining mash temps for brewing.

 
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Old 07-20-2010, 01:27 AM   #4
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Excellent! That answers that. I really want control on keeping the mash temp exactly where I want it. Thanks to both of you for replying.
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Old 07-20-2010, 01:39 AM   #5
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One more question on that. I forgot to tell you will be using the Lp gas coming from the gas beam. I am going to use 1/2 inch Honeywell standing pilot light valves with thermocouples for safety, and low pressure 10 inch banjo burners on Hlt and Bk, and a 9 inch banjo style burner on the mlt, with a Marshal 299 low pressure two stage regulator for flame control. Will the Auber Pid be compatable with the Honeywell valves and will the valves be able to fire on and off, or is the Auber Pid for electric heating elements only?
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Old 07-20-2010, 02:11 AM   #6
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Can someone post a link to a good controller/probe
I am a bit overwhelmed by the choices and don't want to buy the wrong stuff.

 
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Old 07-20-2010, 03:08 AM   #7
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Never mind, I'm such a goofball I figured it out..............
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Old 07-20-2010, 04:19 PM   #8
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Quote:
Originally Posted by HI_SALENITY View Post
Can someone post a link to a good controller/probe
I am a bit overwhelmed by the choices and don't want to buy the wrong stuff.
I like THIS one for my application. The available thermal probes are on that site as well. It's a relay style so doesn't have the SSR output voltage if you need it. The dual displays are very helpful because it keeps your set point visible. Single displays have to toggle between what you set and the actual value.

When using these PID controllers for gas control you have to adjust parameters to get the best performance. For instance, on a Love controller it won't turn off until it hits the setpoint. This will cause an overshoot as the thermal mass catches up. On a PID, it will see it's approaching the setpoint and begin to reduce the heat so it eases to the right temp and stays there. It's the parameter values for the PID that customize it for your heat source and vessel.
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Old 07-21-2010, 01:28 AM   #9
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Quote:
Originally Posted by Ricand View Post
When using these PID controllers for gas control you have to adjust parameters to get the best performance. For instance, on a Love controller it won't turn off until it hits the setpoint. This will cause an overshoot as the thermal mass catches up. On a PID, it will see it's approaching the setpoint and begin to reduce the heat so it eases to the right temp and stays there. It's the parameter values for the PID that customize it for your heat source and vessel.
Here is one way to control gas with a PID:

http://www.homebrewtalk.com/f51/gas-...ummies-116632/
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Old 07-21-2010, 03:50 AM   #10
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Thanks Ricand and Sawdustguy. Ricand how does the pid ease off before the set point, does is just send a signal to close the valve to the burner, since I am not using an electric element?

Sawdustguy, that is a great option, do you see any problem with the ignition system signals, current, etc. interfearing with the electric components in the main control box?


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