The hot spot effect is the core threat to the operation safety of photovoltaic power plants. Hidden cracks in components, loose wiring terminals, aging diodes, and poor cable contact can all cause local abnormal temperature rise. Long term high temperatures not only greatly reduce power generation efficiency, but also directly burn components and cause on-site fires in severe cases. Traditional manual visual inspection and single point contact temperature measurement have a high rate of missed detections and low inspection efficiency, making it difficult to meet the needs of large-scale photovoltaic array comprehensive hazard investigation. Suzhou Laikesi LAILX focuses on the pain points of photovoltaic operation and maintenance temperature measurement, and has launched the LX-F100 handheld infrared thermal imaging device. With ultra-high thermal sensitivity, high-definition infrared imaging, and lightweight handheld design, it realizes non-contact global rapid temperature measurement, accurately captures small temperature anomalies, and becomes an essential inspection equipment for photovoltaic power plant preventive operation and maintenance. It also covers temperature detection scenarios in multiple fields such as power, industry, and construction. Compact, portable, precise imaging

The LX-F100 is equipped with a 320 × 240 resolution uncooled infrared focal plane detector, with a response band of 7 μ m-14 μ m. Its thermal sensitivity is as low as less than 0.05 ℃ @ 30 ℃, and it can accurately identify subtle temperature differences of only 0.05 ℃. Hidden heat spots inside the component that are not visible to the naked eye, small heating in the junction box, and temperature rise at the junction box terminals can all be clearly displayed in the thermal imaging map, with a near zero missed detection rate. The temperature measurement system supports dual range intelligent switching, and is suitable for photovoltaic modules and household power equipment detection in the low temperature range of -20 ℃ to 120 ℃. The high temperature range of 0 ℃ to 650 ℃ meets the high temperature measurement needs of inverters, transformers, and industrial machinery. The temperature measurement accuracy of the whole machine reaches ± 2 ℃ or ± 2% (whichever is larger), and the data is stable and reliable, in line with the industry standard for infrared detection of power equipment. The device is equipped with a dual light fusion function of visible light and infrared images, and the thermal imaging temperature color blocks are synchronously overlaid with the component real scene display. With one click, the highest and lowest temperature points on the screen are locked, and the temperature value is automatically marked. The operation and maintenance personnel do not need to repeatedly compare and quickly locate faulty components and terminals. The single array inspection time is reduced by more than 60% compared to traditional manual inspection, and the daily inspection coverage area of large ground power stations is doubled.

The durability and endurance of outdoor operations are fully adapted to the complex working conditions of photovoltaics. The LX-F100 machine adopts an ergonomic integrated handheld body, which is lightweight and not easy to fatigue during long-term high-altitude inspections. The body has IP54 dust and waterproof protection, rain and sand protection, and is suitable for use in rainy seasons, coastal high humidity, and northwest wind and sand fields. The working temperature range is -20 ℃ to 50 ℃, and the imaging in high and low temperature environments is distortion free. Equipped with a large capacity lithium battery, it can continuously measure temperature for 15 hours when fully charged, meeting the needs of full day power station inspections. It supports Type-C fast charging, and on-site power banks and vehicle power supplies can quickly replenish energy without carrying multiple sets of backup batteries. The body is equipped with a 4-inch high-definition color touch display screen, which can be seen clearly under strong light. It features a fully Chinese operation menu, allowing for one click switching of temperature measurement modes, adjustment of color codes, and saving of images. It supports voice annotation to mark fault points, and automatically stores thermal imaging photos locally. Each record comes with shooting time and temperature values, and supports Bluetooth wireless transmission to mobile phones and computers to quickly generate inspection hazard reports.

The intelligent analysis function simplifies the management process of operation and maintenance hidden dangers. The equipment has a built-in temperature threshold alarm function, and operation and maintenance personnel can customize the temperature rise warning value according to the safety standards of photovoltaic equipment. Once an area with excessive high temperature is detected during the scanning process, the equipment will automatically sound and light reminders to lock in safety hazards in the first time. The stored thermal imaging images can be replayed for temperature measurement in the later stage, and the average temperature and maximum temperature difference can be freely checked in the selected area. The temperature distribution of components in the same batch can be compared to accurately distinguish between environmental temperature interference and equipment malfunction heating, avoiding misjudgment. The supporting computer management software can import inspection images in batches, automatically generate temperature rise analysis curves and monthly hazard statistics reports, clearly count the number and distribution area of hot spot faults, assist the operation and maintenance team in formulating component cleaning, replacement, and line maintenance plans, quantify the power generation loss caused by thermal hazards, and improve the precision operation and maintenance level of the power station.

LX-F100 has diversified application scenarios, covering distributed rooftop photovoltaics, mountainous ground power stations, agricultural photovoltaic complementarity, and fishery photovoltaic complementarity projects for daily inspections. It checks for hidden dangers such as component hot spots, junction box heating, combiner box, inverter, and cable joint temperature rise; Electric power operation and maintenance scenarios are used for overheat detection of switchgear, transformers, transmission lines, and distribution cabinets; Monitor abnormal temperature of motors, bearings, and pipeline equipment in the industrial manufacturing field; Inspect wall insulation defects and floor heating pipeline leaks in the construction industry. For the photovoltaic complete testing solution, the equipment can be used in conjunction with LAILX LXG30 EL detector and LX-PV33 IV tester to form a complete testing system of "internal defects+performance degradation+thermal hazards", comprehensively troubleshooting component faults in all dimensions.

At present, LX-F100 has been widely used in major new energy operation and maintenance enterprises, power testing units, and third-party photovoltaic evaluation institutions across the country. With the advantages of high sensitivity temperature measurement, portable long endurance, and low-cost operation and maintenance investment, it effectively reduces the fire safety risk of photovoltaic power plants and reduces the loss of power generation revenue caused by hot spots. The market leader of LAILX in Suzhou introduced that the brand has been continuously iterating equipment around the core requirements of photovoltaic operation and maintenance cost reduction and efficiency improvement. LX-F100 will upgrade its AI hot spot automatic recognition algorithm, automatically classify and label the risk level of hot spots, further reducing manual judgment workload. Relying on the core technology of infrared temperature measurement, it will continue to provide high-precision detection equipment support for clean energy and power safety operation and maintenance.

Compact and portable imaging precision, high sensitivity and clear imaging, handheld thermal imaging device