Negative power displayed on a Clamp-on Power Logger
QI measured the power trend using a Clamp-on Power Logger, but the power value is negative. Why does this happen?
A
Unless the load is generating power, the value shall be positive (consumption). Please check to see if the clamp-on sensor is positioned in the reverse direction, by verifying that the arrow marking on the sensor head is pointing in the direction from source to load.