My measurements are wrong for Smappee Infinity

In case you have incorrect readings for either your consumption, grid, production or submeters, you can follow this guide to help you resolve it.
The reason for wrong measurements can be:

  • The CT itself is placed in the wrong direction.
  • A wrong phase has been assigned to the CT configuration (in this case you need to set the CT to the correct phase under load configuration in the App)

Note that in case of Grid the measurements can be negative due to excessive production being exported towards the grid.

Check CT direction

On the CT('s) you have a mark "K -> L", you need to make sure this is correctly installed. The arrow has to point to the direction of the current flow.

  • For production/battery the arrow needs to point away from the inverter towards the fusebox.
  • For Grid the arrow must point away from the meter towards the fusebox.
  • For a submeter the arrow must point away from the fusebox towards the submetered load. 

Wrong phase assigned

If the CT clamp(s) are all connected correctly and you still get wrong measurements, probably the wrong phase is assigned to the CT clamp.
To solve this, check in the fuse box the phases with a multimeter.

A detailed description on how to do this can be found in chapter 9 of our manual:
Smappee Infinity Installation manual

With the information you gather from reading out the different phases you can directly change this in the Smappee app (Settings -> Your Smappee Monitors -> Load configuration) or in the dashboard with the live electricity card. Here you have the option to select the correct phase for every CT.
Keep in mind that it's best to check the consumption (grid or submeter) or production when there's load on it.

If you're measuring the grid, it can be very useful to test with an appliance that has a high load, such as a kettle. This device you can plugin into a socket, if you then turn it on you should see the consumption going up for this phase. You can apply this technique for different sockets to test and verify all of the phases.
For the submeter you can also do this, but then you'll have to turn on the appliance that you're submetering. You'll then see if the value(s) go up correctly and compare the consumption with the consumption of the appliance. For example when you submetering your kettle of 1000W, you can compare this with the value that you get for that submeter.