$7.00 Digital Temp Controller - Home Brew Forums
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Old 05-28-2013, 01:43 AM   #1
jlogue3454
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May 2011
Parkersburg, West Virginia
Posts: 52



Hey guys, I just received my $7.00 temp controller in the mail and I'm confused on how to wire this thing. Anyone else have one of these? I'm planning on using it for a fermentation chamber. model # is MH1210A.

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Old 05-28-2013, 01:48 AM   #2
danb35
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May 2012
Hartsville, SC
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Looks to me like 1-2 are the switched load, 3-4 are line voltage, and 5-6 are the temp sensor (a negative temperature coefficient, 10k ohm thermistor).

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Old 05-28-2013, 02:02 AM   #3
crajax
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Jan 2013
Ajax, ON
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Not really an answer to your question, but....

Looks a lot like my WH7016 controller, almost identical in fact. - a decent controller, but only does heat *OR* cool. so its OK for a refrigerator or freezer replacement - I use it for my kegerator.

there is also a very similar looking STC1000 controller, which you may have seen on forums here - that controller does heat *AND* cool - I use one of these for my fermentation chamber.

I've found that these cheap controllers work well, but note that they only display in celsius.

I concur with danb, and add that in the diagram you posted - that box with the X in it, and the chinese characters at the side - that represents the load that you want to control - (ie your heater or your cooling device)

Also, check that whatever you're controlling doesn't exceed the amperage rating of the controller.

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Old 05-28-2013, 02:20 AM   #4
atoughram
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May 2013
Puyallup, Washington
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Looks similiar to my refer and fermentation cabinet controllers.

Interesting - that one only has one set of contacts, the two I have, have twin contacts, one for cooling and one for heating.
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Old 05-28-2013, 02:29 AM   #5
Punx Clever
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Nov 2007
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Wire it just like the picture:

One lead of your 110v AC supply goes to terminal 1 and 3.

The other lead of your 110v AC supply goes to terminal 4.

Put the load (fridge, freezer, power outlet that is being controlled etc) between terminal 2 and the lead going to terminal 4.

Attach your sensor to terminals 5 and 6.

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Old 05-28-2013, 02:59 AM   #6
Frankiesurf
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Has nobody read #3 of the intruction booklet?

I know that I try not to frequent places where the elderly could be touched much less put my fridge there.

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Old 05-29-2013, 12:13 AM   #7
crajax
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Jan 2013
Ajax, ON
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ha ha....no, I missed that the first time around... ..those chinese to english translations, sometimes they're as funny as they are confusing.

Quote:
Originally Posted by Frankiesurf View Post
Has nobody read #3 of the intruction booklet?

I know that I try not to frequent places where the elderly could be touched much less put my fridge there.

 
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Old 06-27-2013, 12:31 PM   #8
mysterio
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Dec 2005
Glasgow, Scotland
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Can anyone post a picture of their wiring for this controller? The MH1210a.
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Old 06-27-2013, 01:00 PM   #9
Boar Beer
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Quote:
Originally Posted by Frankiesurf View Post
Has nobody read #3 of the intruction booklet?

I know that I try not to frequent places where the elderly could be touched much less put my fridge there.
Now that is funny.
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Old 10-07-2013, 11:12 AM   #10
Drifting79
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Sep 2011
shinyurigaoka, kanagawa
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Hey guys I have bought one of these also
I am going to use it with 220v I am not to sure wether I need to earth
This or not the diagram doesn't state so?
It looks easy enough but thought I would ask before making any start on the project
Any help much appreciated
I have wired up a stc 1000 before but this is kind of different as it only has the single control output

 
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