Does the PID need it's own on/off switch?
I think I know the answer to this, but I'd rather ask than be sorry. Is there any benefit to having a main power switch and a separate power switch for the PID or is that redundant? In my original design, I didn't have a main switch, but I had a switchs to turn on the PIDs. I've decided to add a key switch further up the circuit to prevent any damage from someone that can't resist pushing buttons. I assume I can just use this switch to power the PIDS and eliminate the switches down stream. There will still be a switch between the PID and the SSR.
I think I know the answer to this, but I'd rather ask than be sorry. Is there any benefit to having a main power switch and a separate power switch for the PID or is that redundant? In my original design, I didn't have a main switch, but I had a switchs to turn on the PIDs. I've decided to add a key switch further up the circuit to prevent any damage from someone that can't resist pushing buttons. I assume I can just use this switch to power the PIDS and eliminate the switches down stream. There will still be a switch between the PID and the SSR.