Thanks for the advice, but since I already have the PIDs in question, I'd rather use them if at all possible. Looking at the instruction manual here:
I see that terminals 9 and 10 can be used for SSR control. The J1 relay on terminals 4 and 5 can be configured as either a high or low alarm when the SSR control option is being used. Terminals 6, 7, and 8, will be used for the RTD probes that I own.
The only real question I have at this point (I'm sure I will think of more later) is about using the Low alarm relay to shut down the heating element.
In order to use the Low alarm to shut down the heating element, I would route the PID's SSR + out to the J1 relay at terminal 4, then attach the other end of the relay (terminal 5) to the SSR +?
See attachment below.