Portable IV Curve Tester
High-Precision Solar Module & String Performance Analyzer
I. Product Overview
The Portable IV Curve Tester is a robust, field-ready instrument designed for the comprehensive performance analysis of photovoltaic (PV) modules and strings. Encased in a durable, weather-resistant carrying case, this device rapidly captures and analyzes the current-voltage (IV) and power-voltage (PV) characteristic curves. It is an essential tool for PV system installation, commissioning, and maintenance, enabling technicians to verify power output, diagnose faults like shading or module degradation, and ensure the overall efficiency and safety of solar power plants.
II. Key Features & Highlights
-
Comprehensive IV Curve Analysis
- Captures the full IV and PV curves in seconds, providing a complete picture of a solar module's or string's electrical health.
- Automatically calculates and displays critical parameters: Short-Circuit Current (Isc), Open-Circuit Voltage (Voc), Maximum Power (Pmax), and Voltage/Current at Maximum Power (Vpm/Ipm).
-
Rugged & Portable Design
- Housed in a protective, all-in-one case, making it ideal for harsh outdoor environments found in solar farms, on rooftops, and in remote locations.
- Features a clear touchscreen and physical keypad for intuitive operation, even while wearing gloves.
-
Advanced Data Management
- Equipped with an SD card slot and USB ports for easy data storage, expansion, and transfer to a PC for in-depth reporting and analysis.
- Includes a built-in database for various PV module models, with the ability for users to manually add and edit parameters.
-
Integrated Environmental Sensors
- Comes with a high-precision pyranometer to measure solar irradiance and a temperature sensor for the module's backsheet.
- Automatically corrects measured data to Standard Test Conditions (STC), allowing for fair performance comparisons regardless of weather.
III. Detailed Technical Specifications
General Characteristics
| Parameter |
Specification |
| Test Connection |
4-Wire Kelvin Connection |
| Voltage Range |
15V ~ 1500V DC |
| Current Range |
0.5A ~ 20A DC |
| Power Range |
50W ~ 30kW |
| Irradiance Range |
0 ~ 1400 W/m² |
| Host Power Supply |
12V DC |
| Interfaces |
Power Port, Ethernet (RJ45), USB |
Key Measurement Accuracy
| Parameter |
Range |
Accuracy |
| DC Voltage |
15V ~ 1500V |
±0.5% ± 0.1V |
| DC Current |
0.5A ~ 20A |
±0.5% ± 0.01A |
| Irradiance |
0 ~ 1400 W/m² |
±3.0% of reading |
| Temperature |
-30°C ~ 100°C |
±1°C |
System & Host Parameters
| Category |
Parameter |
Specification |
| Voltage |
Measurement Range |
10V ~ 1500V |
| |
Resolution |
0.1V |
| |
Accuracy |
±0.5% ± 0.2V |
| Current |
Measurement Range |
0.01A ~ 20A |
| |
Resolution |
0.001A |
| |
Accuracy |
±0.5% ± 0.02A |
| Max Power |
Test Range |
50W ~ 30kW |
| |
STC Conversion Accuracy |
Better than ±5% |
| Software |
Data Points per Curve |
2048 points |
| |
Data Storage Capacity |
> 2000 test records |
| Host |
Display |
6.5-inch LED, 640x480 resolution |
| |
Power Source |
Rechargeable Lithium Battery / AC Adapter |
| |
Battery Specification |
14.8V / 4400mAh |
| |
Battery Life |
Approx. 8 hours |
| |
Dimensions |
390 x 300 x 200 mm |
| |
Operating Temp. |
-10°C ~ 50°C |
| |
Storage Temp. |
-20°C ~ 60°C |
| |
Humidity |
5% ~ 95% RH, non-condensing |
Pyranometer (Irradiance Sensor) Specifications
| Parameter |
Specification |
| Irradiance Range |
0 to 1400 W/m² |
| Irradiance Resolution |
1 W/m² |
| Irradiance Accuracy |
± (5% + 5 digits) |
| Temperature Range |
-30°C to 60°C |
| Tilt Angle Range |
-90° to 90° |
| Operating Altitude |
0m to 2000m |
IV. Standard Package Contents
- Main Unit (1 set)
- Power Adapter (1 pc)
- Test Lead Kit (4 banana plug leads + 4 alligator clips) (1 set)
- MC4 to Dual Banana Adapter Cable (2 pcs)
- Digital Pyranometer (1 pc)
- Pyranometer Charger (1 pc)
- User Manual (1 copy)
- Certificate of Conformity (1 copy)
- Packing List (1 copy)


