15
Make sure the signal wire is connected correctly, for example the dotted terminals of current signal (i.e. inlet) as well
as the phase sequence of each phase should be correct. Observe power display interface of the meter, and its power
symbol is displayed positive under normal condition and negative only when it is under power generation condition which
is caused by wrong connection of inlet-outlet lines.
About incorrect power running
Energy is accumulated on the basis of power measurement; check whether power value displayed is consistent with
actual load. As the product supports bi-directional energy measurement, energy will be accumulated to backward energy
instead of forward one if wires are not connected properly or total active power is negative. The most common problem on
spot is inlet and outlet wire of current transformer are in reverse connection. Observe signed active power in split phase,
and it may be negative because of wrong connection.
The meter does not respond to any operation
Make sure power supply is connected to the right terminals of meter. If the voltage of power supply is out of specified
range, the meter will be damaged and will not be reset. Please use multimeter to check the voltage of power supply at first.
If the voltage is normal and the meter does not show anything, please try to power it up again.
Other abnormal phenomena
Please contact our technical service department to give a detailed description of the field condition. Our technicians
will analyze possible causes according to your description. The company will appoint technicians to deal with problems on
spot as soon as possible if the problem can not be settled after oral communication.
