Wels, January 17th 2018
TOLERANCE FRONIUS SYMO 3.0-3-M – 8.2-3-M
Fronius International GmbH
hereby confirms that the inverters
/ Fronius Symo 3.0-3-M – 8.2-3-M
have an internal measuring device for collecting voltage, electricity, power and energy data, which are displayed
on the inverter's internal display and readable through different data communication interfaces.
The tolerance of this display, considered over the feed-in period of a year, is a maximum of +/- 3% of the actual
energy fed-in.
The accuracy of the measuring instruments generally refers to the full-scale value, which may lead to higher
momentary deviations (+/- 5%), especially in the partial load range.
At this point we would like to point out that the main task of the inverter is to convert the generated PV energy
and that an inverter is not a calibrated precision measuring device.
Therefore, in the case of detailed yield analyzes, the values of a calibrated meter has to be used.
When comparing the utility meter and the display of the inverter, in addition the tolerance of the utility meter has
to be considered.
Fronius International GmbH
Business Unit Solar Energy
Froniusplatz 1
A-4600 Wels
DI Dr. Martin Heidl
Head of System Technology
02/2011
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