INVT iMars Operation Manual page 30

iMars grid-tied solar inverters
(3) After the DC connector is connected, use a multimeter to measure the voltage of the DC
input string, verify the polarity of the DC input cable, and ensure that the voltage of each
string is within the allowable range of the inverter, as shown in Figure 4.9.
(4) Connect the DC connector with the inverter and ensure tightly-fastened;
(5) When removing the DC connector from the inverter, insert the head of the straight
screwdriver into the raised hole in the middle of the connector, and force the movable end
of the connector to exit.
Figure 4.9 DC input voltage measuring
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Installation