Originally Posted by W0rter
OK here's an interesting question. say I opt for the timer (prob ASL-51 or JSL-71) and I'm using an alarm
can I wire the alarm to serve two functions? Like alert me if the mash temp exceeds a preset limit and when the timer runs out?
Short answer: yes - the buzzer can be triggered by any of the PIDs or timer, and can go off when either the time limit expires, or when a temperature is hit (or both).
I tend to think of an "alarm" as a timer and buzzer combo, which (to me) confuses how the whole panel is wired. It helps to not think about the alarm as one piece, but rather as two - a timer, and a buzzer. The buzzer just goes off whenever a circuit to the buzzer is closed. That can be triggered by the timer, the PIDs, or any combination.
I modeled my control panel off of my understanding of how Kal's works. As such, I have a 2-way "alarm on/off" switch for each of the PIDs and another switch for the timer. That way I can set which elements can trigger the buzzer at any given time.