PIDs / SSRs & Heat sink

[rukkus]

Looking to temp control a 3Kw brewbuilder element in a 70L pot. Where is the go to place for the above at the moment?

[Leann ull]

For a boil you don't need a pid just a voltage controller

[rukkus]

It's for a HLT

[Leann ull]

Sestos on eBay is cheapest, look into a pump to recirc that sort of vol even if it's just a solar

[rukkus]

25A or 40ASSR?

[dcalnan]

25 is plenty but 40 amp is better

Especially when you have to deal with counterfeit ones like this http://www.instructables.com/id/The-inner-workings-of-Counterfeit-FOTEK-SSRs/

[Shanna]

Here is thread that CH started to help me out to wire this originally - http://www.nationalhomebrewclub.ie/forum/equipment-chemicals/wiring-sestos-pid/msg121647/#msg121647

Shanna

[rukkus]

Cheers, has anyone tried this http://web.craftbeerpi.com? Have a spare raspPi handy

[Shanna]

Cheers, has anyone tried this? Have a spare raspPi handy

Did not use raspPi.

Shanna

[rukkus]

Interesting, why not?

[Shanna]

Interesting, why not?

The sestod PID takes as input from analog temperature probes RTD PT100 and are not digital probes. The dallas one wire probes are digital - e.g. DS18b20 but they won't work with the Sestos PID controller as far as I know. You can wire the DS18b20 directly up to the raspPi or you can use some some form of shield to isolate the pi.

Take a look at this other thread where I was looking at doing this. I had used a raspberry PI and a DS18b20 to measure and record temperature.
http://www.nationalhomebrewclub.ie/forum/equipment-chemicals/ardbir-%28formally-brewpi-spark%29-herms-build/msg156178/#msg156178

I found the PI to be very unreliable as it kept crashing and I burnt out one from crashes.

Shanna

[rukkus]

I found the PI to be very unreliable as it kept crashing and I burnt out one from crashes.

Shanna

Ah that'd do it alright

[wartotojas]

Have this still available:
http://www.nationalhomebrewclub.ie/forum/for-sale/controller-for-recirc-biab-(based-on-rex-c100-pid)/

I moved onto using CraftbeerPi since. Did not have any issues with it yet (only 3 brews with it). And there is version 3.0 being developed with more functionality.

[rukkus]

Cool, any idea what's going in to 3.0? Ordered some SSRs yesterday along with an 8 channel relay board for pumps etc. Might give it an install for a look 😀

[wartotojas]

Briefly