Originally Posted by
BeeMan
LWKnight,
Nicely done on sorting out a way to use the alarm. I have not used that Omega controller, so was not sure if it could do this. As far as SSRs go, just up size them so they are overrated and run cool even without a heat sink. The zero crossing feature vs a contactor makes them more reliable in the long haul and you don't need to limit the relevant PID parameter to conserve contact life. Without this constraint SSRs allow the PID setup to shorten on on off times, which in turn should help heater life because the element swings less between max (on) and min (off) temperatures.
BeeMan