Fronius Symo Serie Instructions De Service page 30

Maximum solar voltage (V)
maximum solar module voltage measured during the observation period.
After pressing the Enter key the voltage values for MPP Tracker 1 and MPP Tracker
2 (MPPT1/MPPT2) are displayed, if MPP Tracker 2 is activated (see 'The Basic menu' -
'The Basic menu entries')
Operating Hours
indicates how long the inverter has been operating (HH:MM).
IMPORTANT! The time must be set correctly for day and year values to be displayed
properly.
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