Hi,
I've just connected a (second) shelly 3em to monitor only some circuits in my house (the first measures the total energy consumed at the grid connector).
2 of the three circuits are connected to monitor my induction cooker stove. They are showing a strange behaviour:
* When the stove is on, the power consumption is roughly correct, according to what the total consumption Shelly sees. This consumption positive.
* When the stove is off, there appears to be a small stand-by power use (around 2W), which presumably is correct, but this is reported as negative.
What could this be caused by? I do not have much space in the fuse box, so the clamps have been arranged quite tightly, but they go round only those wires which they are supposed to go round. But maybe there is some interference which becomes apparent at the low currents? What should I check?
