Descrição
SR11 is a high accuracy solar radiation sensor. The SR11 pyranometer complies with the first class specifications of the ISO 9060 standard and the WMO Guide. It is the preferred instrument for outdoor PV system performance monitoring, according to the ASTM E2848 standard.
The SR11 pyranometer can be employed outdoors under the sun, as well as indoors with lamp-based solar simulators. Its orientation depends on the application and may be horizontal, tilted (for plane of array radiation) or inverted (for reflected radiation).
SR11 measures the solar radiation received by a plane surface from a 180 ° field of view angle. This quantity, expressed in W/m², is called “hemispherical” solar radiation.
Measurand | hemispherical solar radiation |
Application |
|
Heater | no |
ISO 9060:2018 classification | class B (first class) |
IEC 61724-1:2017 compliance | class C |
Output | mV |
Calibration uncertainty | < 1.8 % (k = 2) |
Calibration traceability | WRR |
Spectral range | 285 to 3000 x 10⁻⁹ m |
Sensitivity (nominal) | 15 x 10⁻⁶ V/(W/m²) |
Rated operating temperature range | -40 to +80 °C |
Temperature response | < ± 2 % (-10 to +40 °C) |
Standard cable length | 5 m |
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