METER INSTALLATION
1.
Check if voltage and maximum current printed on the meter name plate correspond to the voltage on the
network and to the current which will flow through the meter.
2.
Fix the meter with three screws to the measuring place.
3.
Connect the meter in compliance with the connection diagram which is stuck in the inner side of the terminal
cover (or printed on the meter name plate).
4.
Tighten the terminal screws with appropriate torque. The recommended torque for tightening current terminal
screws is 2.5 Nm.
5.
Check the meter operation indicators:
•
kWh/imp (kvarh/imp) LED is lit (load current is smaller than the meter starting current)
•
kWh/imp (kvarh/imp) LED is blinking with frequency that is proportional to the measured demand
(the meter measures and registers energy)
•
kWh/imp (kvarh/imp) LED is not lit (the meter is in no-power state). In this case the following should be
checked:
a) At directly connected meters: voltage links in lower position (if not, the voltage
links slides should be moved to their lower position)
b) Connected current conductors to the meter (if not, they should be connected)
c) If both above conditions are fulfilled, it means that there is no voltage in the
network. If there is a voltage in the network, something is wrong with the
meter. In such a case the meter should be replaced.
6.
Check the
L1, L2
and
L3
indicators on the LCD if current conductors are connected correctly:
•
L1 L2 L3
indicators are displayed - all three phase voltages are present
•
Some of the
L1 L2 L3
indicators are not displayed (voltage in these phases is not
present). Check if current conductors of these phases are connected and/or their voltage links are in
the bottom position (at direct connected meters) or find the reason for the phase voltage absence and
eliminate it.
•
Some of the
L1 L2 L3
indicators are blinking and at the same time import energy indicator is displayed
indicating that current through that metering element is reversed. In such a case change the input and
the output of the corresponding current terminals.
•
L1 L2 L3
indicators are blinking
– reversed phase sequence that causes rotation of magnetic field in
reversed direction. In this case check current conductors sequence in the meter or find the place of
reversed voltage phase sequence and connect them correctly.
Note
: Reversed phase sequence does not influence in energy measurement accuracy
7.
Check if alarm flags are displayed on the LCD and delete them. If necessary, remove a cause that they are
displayed.
8.
Check RTC date and time and correct them, if necessary.
9.
Perform a meter billing reset (press the orange pushbutton)
10.
Seal the meter (the terminal cover and the orange pushbutton cover).