I have an emonPi and an emonTx together monitoring the mains, solarPv, diversion and EV through CT clamps.
Both of them have AC-AC adapters. The adapters are plugged into an extension lead, itself plugged into the single socket I have available in the utility (the other is being used by the washing machine)
- Is going through an extension lead acceptable to get correct AC measurements?
- I’m getting very different VRMS measurements from the emonPi and the emonTx. The Pi is telling me 230V, the Tx is saying 247V. Is that normal?