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
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.