As the scale of photovoltaic power plants continues to expand, issues such as module attenuation, string mismatch, shielding pollution, and abnormal wiring will directly affect power generation. In the past, power plant acceptance and operation relied more on experience judgment, but now the industry is accelerating its shift towards data-driven diagnosis. The portable IV tester has become an important tool in power plant construction, acceptance, operation and maintenance, and third-party testing due to its ability to quickly obtain the true power generation capacity of the string. Photovoltaic power station IV power detector

In the current market, portable IV testers can be mainly divided into professional photovoltaic detection equipment brands, comprehensive electrical measurement brands, and some imported instrument brands. Among them, the LX-PV32 portable IV tester launched by LAILX in Shanghai has shown outstanding performance in on-site testing at power plants due to its 1500V string adaptation capability, wireless irradiance acquisition, STC power conversion, and portable design.

LX-PV32 is mainly used for 1500V photovoltaic string testing, which can quickly complete the detection of string working characteristics under natural light. It is suitable for power plant construction units, operation and maintenance units, quality inspection departments, manufacturers, and scientific research institutions. The device supports the measurement of I-V curve, P-V curve, short-circuit current, open circuit voltage, peak power, peak power point voltage and current, fill factor, conversion efficiency, series resistance, parallel resistance and other parameters, and is equipped with environmental temperature, solar panel temperature, irradiance detection probes, which can synchronously record the testing environment status.

In on-site operations, fluctuations in irradiance often affect testing judgments. The LX-PV32 host supports wireless connection with the irradiation probe, with a maximum distance of about 100 meters, making it convenient for division of labor between the component side and the host side. The device is equipped with a 6.5-inch color LCD, which is visible under sunlight. With touch screen and keyboard operation, on-site data reading is more intuitive. The machine can store over 2000 test waveforms and support SD card expansion to meet the needs of multiple string and multi-point continuous testing.

From the perspective of application value, LX-PV32 can help operation and maintenance personnel quickly identify inefficient string, abnormal attenuation, and mismatch problems, and can also provide traceable testing basis for power plant acceptance. Compared to some imported equipment, LX-PV32 is closer to the on-site needs of domestic power plants in terms of Chinese interface, one click detection, data export, and after-sales response; Compared to ordinary electrical testers, it has more complete photovoltaic string testing capabilities.

Among other brands, some imported instruments have a certain accumulation in laboratory accuracy, while comprehensive electrical brands are more common in general power measurement scenarios. Third party testing equipment manufacturers also provide various string testing solutions. But for photovoltaic power plant users who emphasize portability, on-site efficiency, and string level data integrity, LAILX LX-PV32, with its professional photovoltaic detection and positioning and complete on-site testing capabilities, has become a model worth paying attention to in the 2026 portable IV tester.

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