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  1. C

    Yet another PID question.

    I am building a controller that will have two SSR(s) that control two different devices (heating element/heating element or heating element /cooling. I have a TA4-SSR (not -SNR or -RNR). My question is can I connect SSR(s) to either AL1 or AL2 do I need to provide dc power to pins 5 or 6? The...