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Old 12-07-2010, 04:47 PM   #11
defenestrate
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still offering to make these? how much for one with dial? i plan on getting a 20 gal pot and running a 5500 w element


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Old 01-17-2011, 08:55 PM   #12
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Quote:
Originally Posted by Brewmoor View Post

Also if anyone is interested in one of these circuits. I have an extra one that I built. I can also make more boards pretty easy. I could make them in two different configurations. All in a box complete with dial and inputs, or just the board and terminal blocks like the picture below.

I would like the all in one version, with potentiometer to control a 5500w element!! I have an SSR just need the actual controller!! I also have my own box to put circuit in!! What's the price?


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Old 01-17-2011, 09:19 PM   #13
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Quote:
Originally Posted by ErinWhite View Post
I would like the all in one version, with potentiometer to control a 5500w element!! I have an SSR just need the actual controller!! I also have my own box to put circuit in!! What's the price?
X2

 
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Old 01-31-2011, 03:03 AM   #14
McCuckerson
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Quote:
Originally Posted by freddyb View Post
I used a PWM kit from Bakatronics #FK804, cost $8, and swapped a capacitor to reduce the cycle time to 1Hz (also calculated the cap value for 1/2 Hz but deemed it unnecessarily slow). ....
I am a little confused by the cycle time. I thought the PWM adjusted cycle time? Or does the adjustment change the amount of time between cycles?
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Old 01-31-2011, 03:16 AM   #15
LakewoodBrew
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PWM changes the percentage of the cycle that the output is high vs low (duty cycle) the frequency (time between pulse leading edges) is fixed by the circuit design usually.

 
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Old 02-01-2011, 08:03 PM   #16
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5 of my first 6, Posts have been about PWM controllers. Seems i got a better chance of getting a lap dance from Barbara Bush then get a " How to " for PWM.
Well i allways got Kal's E-BREW to rub one off too.

 
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Old 02-01-2011, 08:38 PM   #17
Brewmoor
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Sorry Folks. My life has change a great deal over the last few months. Some of you know I was starting a commercial taproom. Well we have been open for over two months and it is going very well. I do not have any time to make these controllers. Some of you have PM'd me and i will send the files I have soon. It has been a very crazy two weeks for me.

We were invited to do a beer tasting at the Winter X-Games for ESPN and their sponsers. We had our grand opening the following day too. We went through so much beer I have been frantically trying to make more. I will try my best to get my stuff together and email everyone that has asked.
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Old 02-01-2011, 08:59 PM   #18
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Quote:
Originally Posted by Double-R View Post
5 of my first 6, Posts have been about PWM controllers. Seems i got a better chance of getting a lap dance from Barbara Bush then get a " How to " for PWM.
Well i allways got Kal's E-BREW to rub one off too.


got this info from freddyb

Quote:
Originally Posted by freddyb View Post
Buy this: http://www.bakatronics.com/shop/item.aspx?itemid=383
Replace C1 with a 2.2uF capacitor to lower the frequency.
Use a 12V wall wart as a power supply to the PWM board.
Connect the output of the PWM board to a SSR to control your boil.

This is how I did it and I'm very happy. Cheap, easy, responsive control.

 
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Old 02-02-2011, 07:41 AM   #19
LakewoodBrew
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Quote:
Originally Posted by atoyot View Post
got this info from freddyb
that looks like a pretty easy and economical way to go. can't be sure since the picture is kind of blurry but it looks like a standard NE555 timer based circuit. They work great, and are easy to configure.

 
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Old 02-02-2011, 02:21 PM   #20
Squeeky
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atoyot,

Thanks for providing the info, I was originally looking at using an infinite switch to control BK as I didn't want to invest in another PID. This solution looks much easier and will fit nicely in a small control panel.

I would recommend one uses a numbered dial, so once you determine the cycle needed to maintain a boil you can mark some how and go from there.

Thank again!

*Just want to confirm, once constructed (switching the cap) one would run 12vdc to the speed control, and it's output would run to a dc controlled SSR? *

Also anyone whom purchases want to post the parts list. Shipping cost more then the unit itself



 
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