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Sunny Boy 2000
6.5 Measurement Precision
Any kind of measurement is inaccurate to a certain degree. Measurements taken by
the Sunny Boy are required for its operational control and the control unit of current
to be fed to the grid. The reproducibility of measurement values complies with these
requirements. A maximum measurement error is conceived for an ambient tempera-
ture ϑ
of 25 °C. Other temperatures must be evaluated with respect to the inaccu-
U
racy resulting from these different temperatures.
input voltage
input current
grid voltage
grid current
grid frequency
output power
energy yield
operating hours
Table 6.2: Measurement accuracy of the Sunny Boy
SB2000-11:EE
[Unit]
Range
U
[V]
0...561 V
PV
I
[mA]
0...10000 mA
PV
U
[V]
190...300 V
AC
I
[mA]
0...12,490 mA
AC
f
[Hz]
45...55 Hz
AC
P
[W]
0...3200 W
AC
E [kWh]
0...4.29*10
h [h]
0...4.29*10
Resolution
Display Measurement ϑ
1 V
1 mA
1 V
1 mA
0.01 Hz
1 W
9
Wmin
1 Wmin
9
s
1 s
- 65 -
Technical Description
Max. fail.
=+25°C
U
0.55 V
±2%
10 mA
±4%
0.3 V
±1%
12 mA
±2%
0.01 Hz
±0.1%
1 W
±3%
10 Wmin
±3%
0.67 µs
±0.1%
SMA Regelsysteme GmbH
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