Here is a video showing proper wiring of an Omnimeter I v.3 installed on a 120 volt electrical system:
Here is a video showing proper wiring of an Omnimeter I v.3 installed on a 120/240 volt electrical system:
Here is a video showing proper wiring of an Omnimeter I v.3 installed on a 3-phase 3-wire electrical system:
Here is a video showing proper wiring of an Omnimeter I v.3 installed on a 3-phase 4-wire electrical system:
Here is a video that explains North American single phase residential electrical systems:
Here is a video that explains international single phase electrical systems:
Here is a video that explains three phase electrical systems: