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The Spi-Cell Tester™ tests the electrical performance of photovoltaic cells under simulated sunlight. A xenon arc lamp with an optical filter provides a close match to the Air Mass 1.5 Global (AM1.5G) solar spectrum.
The Spi-Cell Tester measures current-voltage (I-V) characteristics of cells with dimensions up to 156 mm x 156 mm at 1 sun intensity. Its high resolution also permits testing of very small area devices. Separate current and voltage probes on the top and bottom of the cell permit four-point (Kelvin) I-V measurements. A calibrated monitor cell is located on the test plane to monitor the light intensity.
A computer with user friendly software adjusts the lamp intensity, controls the measurement process, and acquires cell performance data. A programmable electronic load varies the resistance across the cell to measure its I-V characteristics. The computer plots the I-V curve and displays a variety of cell characteristics. Curves and data can be printed and stored on disk.
Maximum Solar Cell Dimensions |
156 mm x 156 mm (6 in. x 6 in.) |
Source |
1.5 kW xenon arc lamp Filtered to AM1.5 Global spectrum (ASTM E927) Intensity range: 70 to 110 mW/cm² Lamp lifetime: 900 hrs (typical) |
Illumination Uniformity |
±2% over 156mm x 156mm area |
Measurement Range |
Voltage: ±1.25 |
Resolution |
Voltage: 0.6 mV |
Equipment Dimensions (excluding computer and water chiller systems) |
Width: 71 cm (28 in.) Length: 102 cm (40 in.) Height: 130 cm (51 in.) |
Equipment Net Weight |
190 kg (425 lbs.) |
Utilities Requirements |
Electricity: 200 - 240 VAC, 30 A, 50/60 Hz, single phase Compressed air: 550 kPa (80 psi), 60 slpm (2 scfm) |
Options |
• Laser printer with software • Bins for manually sorting cells • Third bus bar contact configuration |
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