Newest Threads

miahpage · 08-15-2012, 02:14 AM

Quote:

Originally Posted by P-J

Answers:
1) The switches are there to isolate the power being delivered to the kettle. The design is such that very minimal rewiring would be needed to convert the controller to a 240V system. No, it does not turn the element on. The PID controls the power being delivered to the element.

2) The PID controls the power to the element in manual mode & in temperature control mode.

3) Yes they will be off. However, keep in mind that if this controller is converted to 240V power, 120V of the power will be present at the elements even with the PID shut off unless switches 1 & 2 are turned off.

Hope this helps.

P-J

Thanks for the information P-J! Your electrical advice on this forum is making me consider building a basic control panel myself.

I now understand why you would want to put a switch on the element and the PID. When I build my own system it will be 240v so I should probably have a switch on the element to have the ability to cut off all the power to the element.

thedude00 · 08-15-2012, 02:20 AM

**jrb03** · 08-15-2012, 03:10 AM

You will need 2 ssr and heat sinks for 2 elements. Will be pretty tight fitting 2 into the auber project box.

**P-J** · 08-15-2012, 03:26 AM

Quote:

Originally Posted by jrb03

You will need 2 ssr and heat sinks for 2 elements. Will be pretty tight fitting 2 into the auber project box.

Ha.! Now is your opportunity to call Suyi Liu, the owner of Auber Instruments (www.auberins.com) and ask for things that are needed for our community (like a larger project box?). He is an outstanding merchant and the owner of the business.

(Drop my name - I suggest 'stuff' all the time.)

P-J

**DustBow** · 08-15-2012, 02:27 PM

Yeah, I thought about emailing him the same thing - a larger project box with the same pre-cut PID opening would be ideal. I'm making a pretty "simple" control panel with one PID for one kettle/element and the room runs out very quickly, especially if you are putting a contactor in there.

rack04 · 08-15-2012, 08:07 PM

What is the purpose of the flash buzzer and the alarm disable switch?

thedude00 · 08-16-2012, 01:20 AM

Quote:

Originally Posted by rack04

What is the purpose of the flash buzzer and the alarm disable switch?

The buzzer alarm will go off when you hit your mash temp and the disable switch is just for safety, if something starts to go wrong hit the switch and it will kill power to the control panel.

**jrb03** · 08-16-2012, 01:43 AM

Quote:

Originally Posted by rack04

What is the purpose of the flash buzzer and the alarm disable switch?

The PID has a built in alarm feature. You can set a high and/or low temp alarm. I use it to alert me when mash in temp is reached. The flash buzzer will blink and beep pretty loud. The switch next to it simply enables and disabled the flash buzzer. It's not a must have, but I'm glad I have it. Especially at its minimal cost.

rack04 · 08-16-2012, 01:43 AM

Quote:

Originally Posted by thedude00

The buzzer alarm will go off when you hit your mash temp and the disable switch is just for safety, if something starts to go wrong hit the switch and it will kill power to the control panel.

Ok I get the buzzer but the disable switch is still a mystery. I think what you are referring to is the e stop.

**P-J** · 08-16-2012, 02:23 AM

Quote:

Originally Posted by rack04

Ok I get the buzzer but the disable switch is still a mystery. I think what you are referring to is the e stop.

The alarm disable switch is there to shut off the alarm light/buzzer.

Without the switch in place, you need to change the values within the PID so that the conditions are no longer triggering the alarm. I really believe the switch is a much easier solution than reprogramming the PID on the spot.

Scenario: PID set for strike water temperature. Alarm set to trigger when temp is achieved. (Alarm goes off and a call out goes to you for attention while you are doing other stuff.) Flip the switch and continue with your brew process. Reset PID alarm values at your leisure later on and flip the switch to alert you again when the new event is achieved.

Oh well, I thought it was a good idea so I placed it in the diagram.

P-J