All i can think is since it is evening you would be drawing power from grid, the clamps are the wrong way around on the wire.
The other reason for over or under reading is the clam is not properly closed or damaged.
From the manual…
All i can think is since it is evening you would be drawing power from grid, the clamps are the wrong way around on the wire.
The other reason for over or under reading is the clam is not properly closed or damaged.
From the manual…
