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Old 04-13-2010, 03:34 AM   #1
Mongo64
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Default Anyone use this temp controller off ebay?

I'm looking for a temperature controller for my fermentation chamber. This one only displays temp in deg. C (not a big problem) but it has a heating and cooling stage which is a requirement for my needs. Anyone using one of these?

http://cgi.ebay.com/Mini-Digital-Tem...item414e918e00

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Old 04-13-2010, 03:38 AM   #2
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Just got mine today! I'm going to use it to regulate temperatures on my taps. Mounting it into the fridge to control the coolant pump. Could be used sometime later to control the fridge. I believe the fridge pulls less than 10 amps, I'd have to look if I plan to use it for that in the future, or hook up a bigger relay to it.

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Old 04-13-2010, 03:43 AM   #3
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http://www.homebrewtalk.com/f51/ebay...-build-163849/
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Old 04-13-2010, 03:45 AM   #4
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What about preventing short cycling of the compressor?

Edit:

Uppon further reading the controller has a 1 - 10 minute delay you can set before turning the heat or cooling back on, thus preventing the short cycling.

Pretty cool for 20 bucks.

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Old 04-13-2010, 03:49 AM   #5
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When your compressor initially kicks on it most likely will draw more than 10 amps for a very very short period of time. Steady state you should be fine but its that start that will cause issues.

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Old 04-13-2010, 03:55 AM   #6
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Quote:
Originally Posted by TheFlyingBeer View Post
When your compressor initially kicks on it most likely will draw more than 10 amps for a very very short period of time. Steady state you should be fine but its that start that will cause issues.
I forgot to say that I'm using a mini fridge for cooling rated at 1.4A. I've controlled it with a 10 relay already so I know that the switching should be OK.

Can someone measure the OD of the temp sensor? I wanna use it in one of the thermowells from Brewers Hardware if it will fit.
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Old 04-13-2010, 03:58 AM   #7
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this controller works great for controlling my keezer. the link provided above has a lot of people who have successfully used it for keezers, kegerators, and fermenters.

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ebay temp controller | thermostat temp controller
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Old 04-13-2010, 04:50 AM   #8
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Quote:
Originally Posted by Mongo64 View Post
I forgot to say that I'm using a mini fridge for cooling rated at 1.4A. I've controlled it with a 10 relay already so I know that the switching should be OK.

Can someone measure the OD of the temp sensor? I wanna use it in one of the thermowells from Brewers Hardware if it will fit.
Just got mine in the mail today. Haven't had the opportunity to play with it but it feels good and solid, and looks nice as well. The OD of the sensor is 3/16", but I would go with 1/4" to be safe and for ease of use.
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Old 04-13-2010, 05:12 AM   #9
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I've built my control box around it for a ferment chamber, but it isn't in use yet. I think it kicks butt though.

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Old 04-13-2010, 04:16 PM   #10
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Thanks for pointing this out, I missed the other thread. I just started a DIY temp controller build using a $20 digital AC thermostat but needed to spend another $20 on a relay. I just ordered this and will be returning my other thermostat..

Thanks!

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