Yoha Solar, 15+ years engaged in the photovoltaic industry, is excited to announce the recent production and shipment of several state-of-the-art devices. These products—our Solar String EL Tester and Solar Module IV Tester—are designed to elevate testing precision and production efficiency in the solar industry. Below, we highlight their key features, parameters, and shipment details along with high-quality images of each machine.
Solar String EL Tester
Our Solar String EL Tester is engineered to perform detailed electroluminescence inspections on solar strings. Key parameters include:
| Items | Functions |
| Defect Detection Types | The equipment should be capable of detecting at least the following types of defects: hidden cracks, black spots, misalignment, broken grids, cold solder joints, light/dark spots, bright spots, scratches, etc. |
| Cell Types | Monocrystalline/Polycrystalline silicon solar cell string |
| Efficiency | ≥99% |
| Applicable String Specifications | String length: 1350*300mm |
| Testing Cycle | Testing time ≤2 seconds, excluding loading and unloading time |
| Camera | 4 Cameras |
| Camera Resolution | 5 million pixel high-definition industrial camera; NIR industrial-grade lens; imaging time adjustable from 0.3~2 seconds |
| Shutter Type | Electronic shutter, non-mechanical shutter |
| Photographing Method | Direct illumination |
| Power-On Method | Manual power-on |
| Computer | a) Display system: 29-inch or larger 1080p monitor b) Dedicated industrial computer host |
| Management Software | EL image automatic shooting function; barcode scanning, manual input Defect classification, automatic generation of date folders, saving function Software filtering correction, image uniformity without background pattern |
| Abnormal Rate (e.g., system crashes, camera connection issues, or software connection issues) | Less than 1/200,000 occurrences |
| Testing Software | Image software automatically stitches images seamlessly, no hardware stitching Automatic image capture and saving Image save path is configurable Image optimization parameters adjustable (time, gain, contrast, Gamma, BR Max/Min) Software parameter modification permission settings Main operation control interface, manual operation interface, parameter interface, etc. |
| Detection Effect | EL defects (hidden cracks, black spots, misalignment, broken grids, cold solder joints, light/dark spots, bright spots, scratches, etc.) Images can be displayed for operator judgment |
| Electrode Module | Dual-module dual-position voltage block (manually placed on the lead line for testing) |
| DC Power Supply Model | ZL6010 |
| Testing Ampere | 0-60V |
| Testing Voltage | 0-10A |
Solar Module IV Tester
Our Solar Module IV Tester plays a vital role in ensuring the reliability and performance of solar modules before they hit the market. Its advanced testing capabilities include:
| Model | YHPT-AAA | Feature |
| Lamp Spectrum | In line with IEC60904-9:2007(A Grade) |
|
| Light Intensity | 1000W/m²(700W/m²-1200W/m²) | |
| Light intensity non-uniformity | ≤±2%[AAA] | |
| Instability degree of irradiation | ≤±1%[AAA] | |
| Test results consistency | ≤±0.05%[AAA] | |
| Test error of electrical properties | ≤1% AAA | |
| Single flash time | 60ms 100ms 150ms(Optional) | |
| Effective Test Range |
2500mm×1400mm 2600*1500mm(Optional) |
|
|
I-V Curve Measuring Voltage |
0-200V(Resolution 1mV) | |
|
I-V Curve Measuring current |
200mA-20A(Resolution 1mA) | |
| Environmental temperature | 15℃~30℃ | |
| Test Parameters | Isc, Voc,Pmax, Vm,Im,FF,EFF,Temp,Rs,Rsh | |
| power | 220V/50Hz(60Hz) |
All these devices have been successfully produced and shipped to key markets around the globe, we have served many clients from India, Sri Lanka, the United States, as well as multiple countries in Africa, East Asia, and so on. Yoha Solar is committed to maintaining prompt delivery and excellent customer support, ensuring that every client receives not only cutting-edge technology but also reliable service.