Happy HolidaySs Giveaway - Last Sponsor Giveaway of the Year!

Come Enter the BrewDeals/FastFerment Giveaway!


Home Brew Forums > Home Brewing Beer > DIY Projects > Brew Stands > PWM for Boil Kettle Control
Reply
 
LinkBack Thread Tools
Old 12-07-2010, 04:47 PM   #11
defenestrate
Senior Member
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
defenestrate's Avatar
Recipes 
 
Join Date: Sep 2008
Location: edgewater, MD
Posts: 1,085
Liked 6 Times on 6 Posts

Default

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

__________________
(dē-fěn'ĭ-strāt') To throw out of a window.
defenestrate is offline
 
Reply With Quote Quick reply to this message
Old 01-17-2011, 08:55 PM   #12
SpottedDogBrewing
Hmmm, BEER!
HBT_LIFETIMESUPPORTER.png
Feedback Score: 10 reviews
 
SpottedDogBrewing's Avatar
Recipes 
 
Join Date: Apr 2008
Location: Goodells, MICHIGAN
Posts: 1,466
Liked 49 Times on 44 Posts
Likes Given: 57

Default

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?
__________________
Spotted Dog Brewing


"This is grain, which any fool can eat, but for which the Lord intended a more divine means of consumption.. Beer!"
-Robin Hood, Prince of Thieves, Friar Tuck

"The nations of the West also have their own intoxicant, made from grain soaked in water...Alas, what wonderful ingenuity vice possesses! A method has actually been discovered for making even water intoxicated."
- Pliny the Elder
SpottedDogBrewing is offline
 
Reply With Quote Quick reply to this message
Old 01-17-2011, 09:19 PM   #13
atoyot
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
atoyot's Avatar
Recipes 
 
Join Date: Apr 2008
Location: Whidbey Island, WA
Posts: 146
Liked 10 Times on 5 Posts
Likes Given: 16

Default

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
__________________
atoyot is offline
 
Reply With Quote Quick reply to this message
Old 01-31-2011, 03:03 AM   #14
McCuckerson
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2008
Location: Zebulon, North Carolina
Posts: 655
Liked 11 Times on 9 Posts
Likes Given: 5

Default

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?
__________________

"Real men drink their freakin' yeast starters...."

McCuckerson is offline
 
Reply With Quote Quick reply to this message
Old 01-31-2011, 03:16 AM   #15
LakewoodBrew
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2009
Posts: 5,876
Liked 24 Times on 22 Posts
Likes Given: 1

Default

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.

__________________
LakewoodBrew is offline
 
Reply With Quote Quick reply to this message
Old 02-01-2011, 08:03 PM   #16
Double-R
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Newburgh,NY
Posts: 316
Liked 9 Times on 8 Posts
Likes Given: 1

Default

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.

__________________
Double-R is offline
 
Reply With Quote Quick reply to this message
Old 02-01-2011, 08:38 PM   #17
Brewmoor
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Brewmoor's Avatar
Recipes 
 
Join Date: Aug 2009
Location: Colorado
Posts: 1,094
Liked 13 Times on 13 Posts
Likes Given: 13

Default

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.

__________________

"What the mind can conceive and believe, the mind can achieve."

My build thread. Compact Single Tier!

Brewmoor is offline
 
Reply With Quote Quick reply to this message
Old 02-01-2011, 08:59 PM   #18
atoyot
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
atoyot's Avatar
Recipes 
 
Join Date: Apr 2008
Location: Whidbey Island, WA
Posts: 146
Liked 10 Times on 5 Posts
Likes Given: 16

Default

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.
__________________
atoyot is offline
 
Reply With Quote Quick reply to this message
Old 02-02-2011, 07:41 AM   #19
LakewoodBrew
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2009
Posts: 5,876
Liked 24 Times on 22 Posts
Likes Given: 1

Default

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.
__________________
LakewoodBrew is offline
 
Reply With Quote Quick reply to this message
Old 02-02-2011, 02:21 PM   #20
Squeeky
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2005
Location: Dayton, Ohio
Posts: 513
Liked 17 Times on 15 Posts
Likes Given: 3

Default

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

__________________
Squeeky is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Boil kettle and boil off rate question jfkriege Equipment/Sanitation 4 12-11-2009 07:02 PM
Thermostat control for Electric HLT or Kettle Boodlemania Equipment/Sanitation 1 03-21-2009 11:59 AM
Electric kettle with PID control neo82087 Brew Stands 62 11-28-2008 01:35 PM
Turkey Fryer Kettle for Boil Kettle? SenorWanderer General Techniques 3 09-06-2007 08:52 PM
Boil Over Control? mot General Techniques 13 03-17-2007 02:15 AM



Newest Threads

LATEST SPONSOR DEALS