Photovoltaic power plants operate outdoors for a long time and are continuously affected by complex environmental factors such as high temperature exposure, rainwater erosion, wind and sand wear, bird droppings, snow cover, etc. Thermal hazards such as component hot spots, aging and heating of junction boxes, cable insulation damage, virtual connection of combiner box terminals, overheating of inverter components, poor grounding and temperature rise occur frequently. In the early stages of such faults, there is only a small temperature difference that cannot be recognized by the naked eye. If not promptly investigated and dealt with, the slight heat hazard will quickly deteriorate, causing permanent power attenuation of components. In severe cases, it can lead to cable fires, component burnout, power plant short circuits and shutdowns, causing huge asset losses and safety production risks to the enterprise. Traditional infrared thermometers can only measure temperature at a single point and cannot visually present the overall temperature distribution, resulting in extremely low inspection efficiency for large-area photovoltaic arrays; Ordinary entry-level thermal imagers have poor thermal sensitivity and are unable to capture small temperature differences, which can easily lead to missed early detection of potential hazards; Imported handheld thermal imaging equipment is expensive and has a long after-sales maintenance cycle, making it difficult to meet the bulk procurement needs of domestic operation and maintenance enterprises. Based on years of experience in infrared detector research and development, Suzhou LAILX has launched the LX-F200 handheld infrared thermal imaging device to meet the exclusive detection needs of the photovoltaic industry. With ultra-high thermal sensitivity, high-definition infrared imaging, wide range precise temperature measurement, industrial grade durable body, and photovoltaic exclusive intelligent analysis functions, it has become a standard tool for identifying thermal hazards in photovoltaic operation and maintenance, and comprehensively protects the electrical and component operation safety of power plants. High sensitivity and clear imaging

The LX-F200 is equipped with a self-developed 12 μ m process uncooled infrared focal plane detector, with a core thermal sensitivity of up to 35mK, which can accurately capture subtle temperature differences as low as 0.035 ℃. It can identify small heating areas of components in the early stages of faults, achieve preventive operation and maintenance, and avoid the deterioration and upgrading of hidden dangers. The temperature measurement range covers -25 ℃ to 560 ℃, fully covering the temperature measurement requirements of all photovoltaic equipment: detecting low-temperature anomalies in winter snow and frost blocking components in the low-temperature range, detecting component hot spots and junction box heating in the medium temperature range, measuring high-temperature faults in the combiner box terminals, inverter power modules, and distribution cabinet cable joints in the high-temperature range, and completing thermal imaging detection of all equipment in the power station in one machine without the need for multiple temperature measurement devices. The infrared image resolution of the device is high-definition, and it is equipped with a high transmittance multi-layer infrared coating lens. The imaging image has clear layers, and the temperature and color difference are distinguished clearly. Hot spots and virtual hotspots are highlighted in the image, and the fault location can be quickly located from a distance without the need to scan each component up close. The inspection efficiency of large connected ground power stations is increased by more than three times. The body is equipped with a 4-inch high brightness touch display screen, which can be viewed outdoors under high noon light without reflection. It supports multiple color palettes for free switching, and color adjustment modes such as iron red, rainbow, and cool colors are suitable for different lighting environments. The operation and maintenance personnel can switch according to the on-site lighting conditions to further improve the clarity of fault identification.

The handheld body adopts an ergonomic anti slip integrated design, and the weight of the whole machine is controlled within a reasonable range. Holding it with one hand for a long time is not easy to fatigue during inspection. The side of the body is equipped with physical buttons for quick temperature measurement, photography, and video recording, without the need for cumbersome touch screen operations. During walking inspection, one can take thermal imaging pictures and record temperature measurement videos with one click, and fully retain on-site fault image evidence. The device is equipped with a large capacity rechargeable lithium battery, with a continuous imaging and temperature measurement range of up to 8 hours, meeting the needs of all day outdoor inspections. It supports Type-C fast charging interface, and can be charged by on-site car chargers and portable power banks. It is suitable for remote mountainous and desert photovoltaic power stations without fixed power supply. The overall protection level of the machine is IP65 dustproof and waterproof. The body shell is wrapped in high-strength wear-resistant rubber, which is anti drop and impact resistant. During the inspection process, accidental drops, rainwater spraying, and sand and dust intrusion will not damage the core detector, making it suitable for various harsh outdoor working environments; The lens is equipped with a rotatable protective cover, which closes the protective lens when idle to avoid damage to imaging accuracy caused by wind and sand.

The device is equipped with an exclusive intelligent temperature measurement and analysis function for the photovoltaic industry, which supports central point temperature measurement, automatic capture of the highest/lowest temperature in the area, and temperature difference comparison annotation. The captured images can automatically calculate the temperature difference between the faulty area and the normal components. The operation and maintenance personnel can quickly classify the hidden danger level based on the temperature difference value, distinguish mild obstruction, moderate hot spots, and high-risk scrapped components. The local storage of the device can store tens of thousands of thermal imaging photos and temperature measurement videos. The captured files are automatically marked with the shooting time and temperature data, and support Bluetooth wireless transmission to mobile phones and tablets. Fault images can be synchronously shared with the backend management team on site to remotely develop maintenance plans; After the inspection is completed, all image data is exported through a data cable, and an inspection report containing temperature values and thermal imaging maps is automatically generated, saving a lot of time for manual recording, photography, and organization. Simultaneously supporting the fusion mode of visible light and infrared images, the infrared thermal image is overlaid with the real scene image, accurately corresponding to the actual physical position of the heating point, avoiding the problem of image recognition unable to locate on-site components, and greatly reducing the difficulty of operation for newcomers.

LX-F200 application scenarios cover full dimensional thermal safety detection of photovoltaic power plants: daily inspection and troubleshooting of photovoltaic array hot spots, bird droppings/dust blocking heating, and junction box diode heating; Electrical equipment detection: Loose and heating of junction terminals in the combiner box, insulation damage and high temperature of DC cables, overheating of internal components in the inverter, and poor contact of the busbar in the distribution cabinet; Quickly locate the local heating points caused by short circuits and leakage during troubleshooting; A comprehensive scan of all components and electrical equipment in the new power station's grid connection acceptance will be conducted to identify potential heating hazards caused by non-standard construction wiring; Evaluate the overall thermal loss of components in old photovoltaic renovation projects and screen for components with severe thermal spot failure; At the same time, it can be extended to be applied to temperature measurement and detection of substations, energy storage cabinets, and industrial and commercial electrical lines, expanding the scope of application of multi-purpose operation and maintenance equipment. After on-site use, multiple distributed photovoltaic operation and maintenance enterprises in China have reported that using LX-F200 for quarterly inspections has increased the early detection rate of thermal hazards by 95%, effectively reducing the frequency of component burnout and shutdown failures, and significantly reducing the cost of power station operation and replacement.

Suzhou LAILX insists on independent research and development of domestically produced core components. All infrared detectors and imaging algorithms of LX-F200 are self-developed by the enterprise, greatly reducing procurement costs. At the same time, it provides a localized after-sales system that is superior to imported brands. The whole machine has a two-year warranty, and the detectors are calibrated for life. Multiple repair service outlets have been established nationwide, and faulty equipment can be quickly repaired without the need for long overseas repair cycles. Against the backdrop of the continuous expansion of the photovoltaic stock market and the tightening of safety production control standards, refined thermal hazard prevention operation and maintenance has become a necessity in the industry. The LX-F200 handheld infrared thermal imaging device, with its core advantages of precision, durability, high cost-effectiveness, and photovoltaic exclusive adaptation, promotes the localization and upgrading of domestic photovoltaic operation and maintenance testing equipment. In the future, LAILX will continue to iterate infrared imaging technology, launch higher resolution, unmanned aerial vehicle mounted thermal imaging equipment, adapt to the rapid scanning needs of ultra large ground power plants, and continuously safeguard the safe and stable power generation of photovoltaic power plants with domestic infrared detection hardware, helping to improve the safety production system of the new energy industry.

High sensitivity and clear imaging, visual remote temperature measurement, portable industrial thermometer