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Old 02-26-2012, 12:52 PM   #1
Adeering
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Default Help with Temp Controller and Temp managing

So I recently took a electric turkey fryer, gutted it and made it so theres no control and just plug in and it turns on, unplug its off. Now what im trying to do is make a temp controller for it, but have heard the ebay temp controllers (which im familiar with and have two for fridge control) arent good for the heating element because of amp draw.

Can someone help me in making a temp controller at a similar price range?

Also i need a way to manage the mixing/recirculation of the water to keep even temps, but dont want to spend 150 on a pump

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Old 02-26-2012, 02:33 PM   #2
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Adeering;

Need a little more info on the fryer and more thoughts on what you want to accomplish with the controller.

When you say 'ebay' controller; I can get just about anything on ebay. But from the sounds of it you are using one that directly switches your fridge and the draw for almost any heating system will need to use some kind of relay to handle the amperage. Are you just boiling or are you using this for mashing.
Also, search this forum for ideas on controllers. You can find more good reading on this forum than is contained in any book when it comes to electrical builds.
Everyone is more than willing to help when they understand what you are trying to accomplish.

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Old 02-26-2012, 02:37 PM   #3
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Quote:
Originally Posted by Adeering View Post
Also i need a way to manage the mixing/recirculation of the water to keep even temps, but dont want to spend 150 on a pump
Stir it manually with a paddle. I did this for a bunch of brews before I got my pump plumbed in. Really not that much work. Thats cheap!
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Old 02-26-2012, 03:24 PM   #4
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The temp controller will be for the mash part and for the ebay controller, im refering to the ebay aquarium temp controller used by a lot of people on here.

As for the turkey fryer, as it is now it can just be considered a heat stick. Ive got it wired to where it just plugs in and its got power. I believe its 1650W 110V.

So if I got a SSR would I wire the temp controller to the relay and then the power to the heatstick, is that how it would work? A diagram would be more helpful for me

Edit: put a rough diagram up that i think should work if I understand correct

diagram.jpg  
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Old 02-26-2012, 04:13 PM   #5
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For anyone to give you any kind of diagram, need more info.
If you are going to use what I'm guessing you want to use for a temperature controller I see the limitation being the output is 5a AC 110 (or possibly 220) The SSR's I use are switched via a DC switching signal. But seeing as the aquarium controllers are most likely ON/OFF controllers a mechanical relay is what you would want. And I see no problem since a lot of times I run my PID in ON/OFF mode. Not as exact, but if you know your controls you can accomplish the same thing.

Auber Instruments has inexpensive mechanical relay's
Do you have the specs for your temperature controller? or link to the actual one you want to use?

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Old 02-26-2012, 04:54 PM   #6
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If you really want to use a SSR you will need a DC power source. Which is doable. The SSR is quieter. Auber Ins. SSR need a DC 3-32 v. You could get an old 'wall wort' (old phone charger) dc power supply and use it to activate the SSR running it through the relay contact on your temperature controller.

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Old 02-26-2012, 05:21 PM   #7
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They do make SRR with AC control but they are much less common. For this purpose I think a PID would be a better choice at not much more cost.

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Old 02-26-2012, 05:56 PM   #8
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Here is an idea to let you work with what you know. But I do not know the real specs on your controller so you need to proceed with caution!!!!!!!!!

As I said earlier, if you want help you need to give all the information possible.

adeering-heater-control-beta-1.jpg  
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Old 02-26-2012, 05:59 PM   #9
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Quote:
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They do make SRR with AC control but they are much less common. For this purpose I think a PID would be a better choice at not much more cost.
Do you know if they are low voltage ac current or if the signal on 110/220?
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Old 02-26-2012, 06:08 PM   #10
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I've only seen low voltage AC but have seen reference to 120v.

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