BigRef Large Area PV Reference Cell
The BigRef is designed as reference cell for measurement and adjustment of irradiance for sun simulators. The the very precise calibration allows an exact determination of sun simulator irradiance. The BigRef can also be used for the measurement of non-uniformity of light for sun simulators for PV modules. Specially the large area of the sensor element offers a large advantage to reference cell designed as WPVS reference cells, as non-uniformity effects are compensated by the BigRef.
Development and Design has been in Cooperation with Solar Cell Calibration Laboratory CalTeC - Solar Cells of Institute for Solar Energy Research Hamelin (ISFH) www.caltec.isfh.de.
|Signal||IV Curve (4-Wire)||Shunt Voltage approx. 80 mV @ STC|
|Uncertainty of Isc resp. Vshunt with DAkkS Calibration||Typ. 1.2% (max. 1.4%)||Typ. 1.6% (max. 1.8%)|
|Design as per IEC 60904-2|
|Sensor Element||Mono Crystalline PV Cell 156.75 x 156.75 mm², pseudo-square|
|Linearity at 25°C||Typ. 0.1% from 100 to 1200 W/m²|
|Temperature Meas. PV cell||Pt100 Klasse A as per IEC 60751|
|Case Size / Protection||210 mm x 210 mm x 12 mm / IP 50|
|Case Material||Black Anodised Aluminium|