Sunny Boy 2500U
Installation and Operator’s Manual
SB2500U-11:NE
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43
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SMA Regelsysteme GmbH
4.7 Measurement Precision
Any kind of measurement always depends on the accuracy. The reproducibility of the
measurement values is conceived for an ambient temperature of 77 °F (25 °C). Other
temperatures must be evaluated with respect to the inaccuracy resulting from these dif-
ferent temperatures.
[Unit]
Range
Resolution
Maximal fail-
ure
Display
Measurement
ϑ
U
=+77 °F
input voltage
U
PV
[V]
0...650 V
1 V
1,12 V
± 2 %
input current
I
PV
[mA]
0...12000 mA
1 mA
12 mA
± 4 %
grid voltage
U
AC
[V]
180...300 V
1 V
0,3 V
± 1 %
grid current
I
AC
[mA]
0...15000 mA
1 mA
30 mA
± 2 %
grid frequency
f
AC
[Hz]
45...55 Hz
0,01 Hz
0,01 Hz
± 0,1 %
output power
P
AC
[W]
0...2500 W
1 W
1 W
± 3 %
energy yield
E [kWh]
0...4,29* 10
9
Wmin
1 Wmin
20 Wmin
± 3 %
operating hours
h [h]
0...4,29*10
9
s
1 s
0,67
µ
s
± 0,1 %
Table 4.1:
Measurement accuracy of the
Sunny Boy
