[Chester Stone]

Rudy, electronics and milti-meters are not my expertise so I want to be sure I do it correctly. On the attached photo, the top terminals are numbered numbers 1 and 2, and the bottom two are 3 and 4. I will turn the switch on, then set the multi-meter to A/C 250 volts and touch the red prong to terminal 1 with the black prong to ground. Repeat for terminal 2. If there is power on either or both, then what? If no power, then I should check for power at terminals 3 and 4. Please advise if this is the correct procedure.