What could be the possible causes and solutions to the data being displayed is inaccurate or not what you expect in PowerLogic PM series meters.
Possible causes are as below:
1.Incorrect setup values.
2.Incorrect voltage inputs.
3.Power meter is wired improperly.
Possible solutions to the causes are as below;
1. Check that the correct values have been entered for power meter setup parameters (CT and VT ratings, Nominal Frequency, and so on).
2. Check power meter voltage input terminals (1,2, 3, 4) to verify that adequate voltage is present.
3. Check that all CTs and VTs are connected correctly (proper polarity is observed) and that they are energized. Check shorting terminals.
See the recommended torque in the Wiring section of the installation manual.