Sunny Boy 2000
Technical Description
SB2000-11:EE
- 65 -
SMA Regelsysteme GmbH
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
U
of 25 °C. Other temperatures must be evaluated with respect to the inaccu-
racy resulting from these different temperatures.
[Unit]
Range
Resolution
Max. fail.
Display Measurement
ϑ
U
=+25°C
input voltage
U
PV
[V]
0...561 V
1 V
0.55 V
±2%
input current
I
PV
[mA]
0...10000 mA
1 mA
10 mA
±4%
grid voltage
U
AC
[V]
190...300 V
1 V
0.3 V
±1%
grid current
I
AC
[mA]
0...12,490 mA
1 mA
12 mA
±2%
grid frequency
f
AC
[Hz]
45...55 Hz
0.01 Hz
0.01 Hz
±0.1%
output power
P
AC
[W]
0...3200 W
1 W
1 W
±3%
energy yield
E [kWh]
0...4.29*10
9
Wmin
1 Wmin
10 Wmin
±3%
operating hours
h [h]
0...4.29*10
9
s
1 s
0.67
µ
s
±0.1%
Table 6.2: Measurement accuracy of the Sunny Boy
