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 are a couple of videos that explain the wiring of a residential breaker panel: