Ss Brewing Technologies Giveaway!

Home Brew Forums > Home Brewing Beer > Electric Brewing > Building simple electric system manual control with pwm, gravity fed (no pumps)
Reply
 
LinkBack Thread Tools
Old 08-14-2012, 04:05 PM   #1
-TH-
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Zeeland, Michigan
Posts: 977
Liked 59 Times on 35 Posts
Likes Given: 2

Default Building simple electric system manual control with pwm, gravity fed (no pumps)

Basically I’m converting my propane rig to electric. I’m looking at doing something similar to this:



With the following exceptions:

1.) No pumps.

2.) The PID would be replaced with a PWM like this one:

http://www.bakatronics.com/shop/item.aspx?itemid=383
with the C1 replaced by 2.2uF capacitor as done by many on this site. I would use a 12VDC wall wort or equivalent to provide input power.

3.) I would use a main disconnect switch to function as both the e-stop and the on/off switch instead of like the diagram, mostly because I have some. It’s a 40A 380V rated switch by Entrelec that looks like this:


Also, I would probably add an indicator light to show when power is on even when the heating elements are off.

P-J, any chance you could update a schematic for me?

__________________
TH

Builds, etc: E-Brewery | Pneumatic Bottle Capper | Fermentation Chamber | Stirplate | Bottle Cabinet
Water Spreadsheet: www.EZWaterCalculator.com
-TH- is offline
 
Reply With Quote Quick reply to this message
Old 08-16-2012, 06:03 PM   #2
RichBenn
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2009
Location: Tahoe
Posts: 748
Liked 13 Times on 12 Posts
Likes Given: 9

Default

Congratulations on keeping it simple!

The only advantage to PID controlling these is the ability to "walk away"/hands off while pre-heating the mash tun and/or boil kettle. You can set the HLT to your strike temp while doing other things, and it'll be ready for you when you are.

You can also set your Boil pot to slightly below boiling (for your altitude), and it won't boil over if you are out of the room. Then go to manual mode/pwm for controlling the boil when you come back.

There are PIDs with platinum RTDs and SSR for around $40 from ebay shipped from the US. If you want a slight upgrade, it's worth considering.

Rich

__________________
RichBenn is offline
 
Reply With Quote Quick reply to this message
Old 08-16-2012, 11:17 PM   #3
P-J
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Charlotte, NC
Posts: 3,257
Liked 250 Times on 201 Posts
Likes Given: 441

Default

Quote:
Originally Posted by -TH- View Post
Basically I’m converting my propane rig to electric. I’m looking at doing something similar to this:

...

P-J, any chance you could update a schematic for me?
Sorry. I don't do PWM setups.

P-J
__________________
P-J is offline
 
Reply With Quote Quick reply to this message
Old 08-19-2012, 01:47 PM   #4
-TH-
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Zeeland, Michigan
Posts: 977
Liked 59 Times on 35 Posts
Likes Given: 2

Default

Quote:
Originally Posted by RichBenn
Congratulations on keeping it simple!

The only advantage to PID controlling these is the ability to "walk away"/hands off while pre-heating the mash tun and/or boil kettle. You can set the HLT to your strike temp while doing other things, and it'll be ready for you when you are.

You can also set your Boil pot to slightly below boiling (for your altitude), and it won't boil over if you are out of the room. Then go to manual mode/pwm for controlling the boil when you come back.

There are PIDs with platinum RTDs and SSR for around $40 from ebay shipped from the US. If you want a slight upgrade, it's worth considering.

Rich
Could you give a link to an example? I would appreciate it!
__________________
TH

Builds, etc: E-Brewery | Pneumatic Bottle Capper | Fermentation Chamber | Stirplate | Bottle Cabinet
Water Spreadsheet: www.EZWaterCalculator.com
-TH- is offline
 
Reply With Quote Quick reply to this message
Old 08-19-2012, 01:48 PM   #5
-TH-
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Zeeland, Michigan
Posts: 977
Liked 59 Times on 35 Posts
Likes Given: 2

Default

Quote:
Originally Posted by P-J
Sorry. I don't do PWM setups.

P-J
Out of curiosity why not?
__________________
TH

Builds, etc: E-Brewery | Pneumatic Bottle Capper | Fermentation Chamber | Stirplate | Bottle Cabinet
Water Spreadsheet: www.EZWaterCalculator.com
-TH- is offline
 
Reply With Quote Quick reply to this message
Old 08-19-2012, 01:59 PM   #6
P-J
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Charlotte, NC
Posts: 3,257
Liked 250 Times on 201 Posts
Likes Given: 441

Default

Quote:
Originally Posted by -TH- View Post
Out of curiosity why not?
Setting up a diagram is complicated enough as it is. The PIDs provide all of the control needed IF the correct one is chosen (PID with manual mode).
__________________
P-J is offline
 
Reply With Quote Quick reply to this message
Old 08-19-2012, 08:08 PM   #7
-TH-
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Zeeland, Michigan
Posts: 977
Liked 59 Times on 35 Posts
Likes Given: 2

Default

Quote:
Originally Posted by P-J
Setting up a diagram is complicated enough as it is. The PIDs provide all of the control needed IF the correct one is chosen (PID with manual mode).
Okay that's fine I totally understand if you don't want make one up. The schematic is quite simple actually, I've sketched my own but I thought it would be nice to have one of your versions posted here because they look nice and that's what people are used to seeing. No problem, I'll make something up to post.
__________________
TH

Builds, etc: E-Brewery | Pneumatic Bottle Capper | Fermentation Chamber | Stirplate | Bottle Cabinet
Water Spreadsheet: www.EZWaterCalculator.com
-TH- is offline
 
Reply With Quote Quick reply to this message
Old 08-19-2012, 08:35 PM   #8
-TH-
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Zeeland, Michigan
Posts: 977
Liked 59 Times on 35 Posts
Likes Given: 2

Default

Quote:
Originally Posted by RichBenn
Congratulations on keeping it simple!

The only advantage to PID controlling these is the ability to "walk away"/hands off while pre-heating the mash tun and/or boil kettle. You can set the HLT to your strike temp while doing other things, and it'll be ready for you when you are.

You can also set your Boil pot to slightly below boiling (for your altitude), and it won't boil over if you are out of the room. Then go to manual mode/pwm for controlling the boil when you come back.

There are PIDs with platinum RTDs and SSR for around $40 from ebay shipped from the US. If you want a slight upgrade, it's worth considering.

Rich
Thanks for the input! I haven't completely ruled out a pid yet but on my propane rig I use a remote thermometer that has a receiver I can walk around with and I just turn the burner off when I get to temp. Haven't overshot it once. All that being said I do like the coolness factor of the pid. If I go that route however wouldn't I also need 2 temp probes and fittings for the bk & hlt? If I could really get it all for 40 I might. I know it doesn't sound like much $$$ but I'm just having a hard time because it's not something I really need at this point (says the guy with the pneumatic bottle capper - go figure).
__________________
TH

Builds, etc: E-Brewery | Pneumatic Bottle Capper | Fermentation Chamber | Stirplate | Bottle Cabinet
Water Spreadsheet: www.EZWaterCalculator.com
-TH- is offline
 
Reply With Quote Quick reply to this message
Old 08-22-2012, 02:37 PM   #9
-TH-
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Zeeland, Michigan
Posts: 977
Liked 59 Times on 35 Posts
Likes Given: 2

Default

Here's my electrical diagram that I made by chopping up one of P-J's.

__________________
TH

Builds, etc: E-Brewery | Pneumatic Bottle Capper | Fermentation Chamber | Stirplate | Bottle Cabinet
Water Spreadsheet: www.EZWaterCalculator.com
-TH- is offline
 
Reply With Quote Quick reply to this message
Old 08-24-2012, 09:12 PM   #10
-TH-
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Zeeland, Michigan
Posts: 977
Liked 59 Times on 35 Posts
Likes Given: 2

Default

Revised my plans a little bit, here's the latest revision:

__________________
TH

Builds, etc: E-Brewery | Pneumatic Bottle Capper | Fermentation Chamber | Stirplate | Bottle Cabinet
Water Spreadsheet: www.EZWaterCalculator.com
-TH- 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
2 vessel electric system with control panel CoalCracker Electric Brewing 6 08-08-2012 06:58 PM
Manual control for Heating element HopsMan Electric Brewing 6 03-09-2012 09:25 PM
Fully manual with BCS system? summerofgeorge Electric Brewing 3 02-18-2012 08:06 PM
Need Help Simple 10Gal Electric Brewing System mamerong Electric Brewing 2 11-10-2011 03:09 AM
Simple Electric Brewery Diver165 Electric Brewing 22 12-13-2010 07:53 PM