User manual for poly-phase meter
44
7、The cables should be connected correctly according to the wiring diagram and the
terminals should be tightened during the installation in order to avoid any damage
caused by bad connection.
The bad fixing of connection screws will lead to the raise of resistance,
which can lead to electrical energy loss and heating of terminals. The
heating of component is risky. Besides, 1mΩ contact resistance in a
circuit of 80A will result in 6.4 W power losses.
8、The cables should be connected correctly according to the definition of the auxiliary
terminal (such as pulse output, signal input or RS485 communication).
Be attention to not be mistakenly connected the auxiliary terminal to the
voltage or current line, so as to avoid damage to meter.
9、Check connecting wire carefully and avoid any error (such as the reverse wiring for
the incoming and outgoing lines, the wrong connection of live and neutral, the bad
fixing of screws).
To ensure the correct wiring, it is recommended to use the appropriate
testing tools (such as multi-meters) for input/output test.
10、 Close the terminal cover, and sealed it.
Please to ensure that the terminal cover is closed tightly, otherwise it will
cause the meter relay cut off due to terminal cover open(If required, can
add this relay off through terminal cover open).
18.4 Testing after installation
◼ Insert the fuse, connect to the grid
◼ Check the meter display, is there any malfunction indication, phase inverse, cover
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