Yoha （Wuhan） New Energy Technology Co., Ltd.
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Solar Module IV Tester Technical Specification
1. Purpose of the Equipment
This equipment is designed for the automatic testing and result recording of the electrical performance parameters of monocrystalline and polycrystalline solar modules. As an advanced IV Tester, it ensures high accuracy, efficiency, and reliability in module testing. The integrated design of this system not only functions as an effective Solar Cell Tester but also offers robust IV Curve Measurement capabilities, making it ideal for modern Solar Panel Production Line optimization.
2. Main Technical Indicators and Principles
2.1 Simulation Light Source
Spectral Matching: Meets the IEC60904-9 spectral irradiance distribution requirements.
Total Irradiance: 100 mW/cm².
Irradiance Adjustment Range: 70–120 mW/cm².
Irradiance Uniformity: ≤ ±1%.
Irradiance Instability: ≤ ±1%.
Single Pulse Duration: 10–150 ms (adjustable).
Flash Count Function: Flash count & reset function after lamp replacement.
Xenon Lamp Lifetime: 200,000 cycles (Germany).
Irradiance Direction: Vertical upward emission.
In the context of IV Tester performance, the simulation light source is calibrated to deliver consistent intensity that is critical for accurate IV Curve Measurement.
2.2 Measurement Range
Effective Test Area: 2700 mm × 1600 mm.
Effective Power Range: 5W–700W.
Voltage Measurement: 0–200V, resolution: 1 mV.
Current Measurement: 0–20A, resolution: 1 mA.
Ambient Temperature: 15–35°C, resolution: 0.1°C.
This range is vital for an effective Solar Cell Tester, ensuring that all parameters are within acceptable limits for reliable IV Tester operations.
2.3 Measurement Accuracy
Repeatability: ≤ ±0.2% (Tested 40 times continuously on the same solar module)
Formula: (Isc_max - Isc_min) / (Isc_max + Isc_min) × 100%
Measurement Error: ≤ ±1%.
High measurement accuracy is key for precise IV Curve Measurement results, making this instrument invaluable in a Solar Panel Production Line environment.
2.4 Measurement Method
Four-wire measurement.
This method enhances the performance of our IV Tester, guaranteeing that even minimal variations are accurately recorded.
2.5 Parameters Measured
Isc, Voc, Pmax, Vm, Im, FF, EFF, Temp, Rs, Rsh.
The comprehensive measurement of these parameters is essential for both a high-performance Solar Cell Tester and for detailed IV Curve Measurement analysis.
2.6 Measurement Interval
Adjustable: 5–10 seconds.
2.7 Data Collection
Collects I-V and P-V curves with 8000 data points, providing a detailed IV Curve Measurement output.
2.8 Test Condition Calibration
Irradiance Auto Compensation.
Temperature Auto Compensation.
2.9 Temperature Measurement
Temperature Compensation and Display.
Built-in Non-contact Infrared Sensor.
2.10 Test Results
Voice Reporting of results.
Graphical Display (I-V Curve) and test time display.
The test results generated by the IV Tester include clear IV Curve Measurement graphs which assist technicians in swift diagnostic assessments.
2.11 Test Report Functions
Real-time I-V characteristic curve display and recording.
Test parameters saved to a designated file.
User-defined file naming.
These reports are particularly useful in monitoring performance across a Solar Panel Production Line, ensuring consistency and reliability.
2.12 Data Summary & Printing
Summarize data by any time period.
Output in Excel format, including cumulative I-V curve output.
2.13 Dedicated Software Features
Input of temperature compensation coefficients.
Input of date, name, and module number.
Serial number auto-increment.
Set range for defective product detection.
Centralized parameter control.
The dedicated software enhances the functionality of the Solar Cell Tester by integrating advanced IV Curve Measurement modules, facilitating seamless data processing on a Solar Panel Production Line.
2.14 Working Time
Designed for 24+ hours continuous operation.
3. Equipment Configuration
| Item | Description | Quantity |
|---|---|---|
| 3.1 | Test Host (with electronic load) | 1 Unit |
| 3.2 | Light Source (including optical system) | 1 Set |
| 3.3 | All-in-One Computer | 1 Unit |
| 3.4 | High-Speed A/D Data Acquisition Card | 1 Unit |
| 3.5 | Dedicated Measurement Software | 1 Set |
| 3.6 | Test Leads | 1 Set |
| 3.7 | Standard Battery (for irradiance calibration & uniformity test) | 1 Unit |
The above equipment configuration supports the efficient operation of the IV Tester and enhances the performance of the Solar Cell Tester in a high-demand Solar Panel Production Line environment.
Our Services:
About Us:
Yoha Solar is a high-tech enterprise dedicated to the research, development, manufacturing, sales, and after-sales service of serial photoelectric automation equipment.
15+ Years Engaged In Solar
300+ Customers Worldwide
Our company primarily serves the solar photovoltaic industry and holds its own import and export rights. We have developed a range of independent R&D equipment.
Main Machinery:Fiber Laser Cutting Machine
Solar cell sorting Machine
Solar Cell IV tester
EL defect tester
EL and AOI Appearance Tester
Solar Panel Production Line
Other Auxiliary Machines