Electric conversion - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Electric Brewing > Electric conversion

Reply
 
Thread Tools
Old 06-07-2011, 01:56 AM   #1
Tuzlo
Recipes 
 
Jan 2009
Posts: 68


I am contemplating switching to electric due to crap weather this year and inabiluity to brew at all. I have seen the setups some people have like the electric brewery, but honestly I cant shell out that amount of money. Can one PID control 2 SSR's at different times (switched). I am no electronic genious, I dont design circuits for a living but I can assemble them easily.

 
Reply With Quote
Old 06-07-2011, 02:40 AM   #2
P-J
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Mar 2010
Charlotte, NC
Posts: 3,336
Liked 302 Times on 235 Posts


Absolutely. You can put together a fairly simple system that can work very well for you.

Here is an example:
(Click on the image for a full scale diagram)


 
Reply With Quote
Old 06-07-2011, 04:03 PM   #3
Tuzlo
Recipes 
 
Jan 2009
Posts: 68

I have been studying your drawing. One question I have is how do you get the thermocouple feedback to control the temperature?

 
Reply With Quote
Old 06-07-2011, 05:12 PM   #4
P-J
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Mar 2010
Charlotte, NC
Posts: 3,336
Liked 302 Times on 235 Posts


The temp probe (RTD) wiring is shown on the PID diagram layout. That probe gets placed in the HLT to sense and regulate the temperature..

 
Reply With Quote
Old 06-07-2011, 05:26 PM   #5
Tuzlo
Recipes 
 
Jan 2009
Posts: 68

Wouldnt you want the BK regulated as well? Im not sure ai want a BK going full out with a 5500 W element in it an d no control. Is it possible to have 2 probes and use a switch?

 
Reply With Quote
Old 06-07-2011, 10:31 PM   #6
P-J
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Mar 2010
Charlotte, NC
Posts: 3,336
Liked 302 Times on 235 Posts


Quote:
Originally Posted by Tuzlo View Post
Wouldnt you want the BK regulated as well? Im not sure ai want a BK going full out with a 5500 W element in it an d no control. Is it possible to have 2 probes and use a switch?
Good question. The particular PID (in the drawing) that I recommend is the Auber Instruments SYL-2352. It has 2 modes that are commonly used for brewing. The first controls the element heating to reach and maintain a set temperature. The second is manual mode where it delivers a percent of power from 0 to 100%. This mode allows you to control the rate of boil. You cannot control the boil rate by temperature. 212F is a simmer boil and 120F is also a raging boil. The difference is the amount of power delivered.

BTW, you can use 2 temp probes and switch them. It is really not necessary for the boil kettle - unless you're chilling the wort using an immersion chiller. If you decide to go this route, it is a must that you choose the RTD temp probes - IMHO.

Type K probes do not work well with switches or when their signal lines are spliced to a different wire type. Every splice or connection becomes a new temperature measuring junction. Auber Instruments carries special connectors and extension cable for the type K probes.

Hope this helps.

 
Reply With Quote
Old 06-07-2011, 11:20 PM   #7
Tuzlo
Recipes 
 
Jan 2009
Posts: 68

Replacing the K Type with 2 RTD isnt cheap, about the same price s another PID. Makes me think about revisiting the Bakatronics PWM system, hell it's manual but if I have to babysit it might as well not throw money away.

 
Reply With Quote
Old 06-07-2011, 11:24 PM   #8
P-J
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Mar 2010
Charlotte, NC
Posts: 3,336
Liked 302 Times on 235 Posts


Why would you need a second temp probe?
There is a way you can swap a single probe if need be. Or just use type K probes. I can explain how.

 
Reply With Quote
Old 06-07-2011, 11:51 PM   #9
Tuzlo
Recipes 
 
Jan 2009
Posts: 68

How else can yuo control the BK if you have no temp feedback

 
Reply With Quote
Old 06-08-2011, 12:15 AM   #10
P-J
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Mar 2010
Charlotte, NC
Posts: 3,336
Liked 302 Times on 235 Posts


Quote:
Originally Posted by Tuzlo View Post
How else can yuo control the BK if you have no temp feedback
The boil kettle is controlled by the PID in manual mode. The PID would be hooked up to the same probe that lives in the HLT (It just needs to be connected to the PID but the PID doesn't use it in manual mode) Manual mode allows you to set the power delivered to the element from off to 100% power. You just touch the up & down arrows to change the %.


 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Electric vs. Gas finger123 Electric Brewing 7 04-10-2011 03:48 PM
Electric HLT Keg drunkenmonkeybrewing Electric Brewing 7 04-05-2011 08:06 PM
New Electric Build eric_pwb Electric Brewing 19 03-10-2011 09:03 PM
Electric Brewstand JoeBuch Electric Brewing 24 01-18-2011 07:27 PM


Forum Jump