The LH series LCD aging visual groove, developed and produced by Shanghai Experimental Instrument Factory Co., Ltd., is specifically designed for the temperature aging process in industrial product manufacturing. It offers high-precision temperature control and a broad operational range, making it ideal for a variety of testing applications.
The test chamber features a unique bottomless design, which simplifies the loading and unloading of samples. The interior and exterior are made from cold-rolled steel plates and are insulated using rigid polyurethane foam to ensure thermal efficiency. The heating and air circulation system is installed on top of the chamber, equipped with specially designed air ducts to enhance temperature uniformity. To maximize the usable space, the chamber is fitted with two groups of front and rear doors—each group containing four levels. The A-type door opens from the middle and front, while the B-type door moves left and right. The viewing window provides excellent visibility, allowing for easy observation during testing.
The temperature control system utilizes advanced foreign-made controllers, featuring a reliable PID adjustment function that ensures stable and accurate temperature regulation.
To guarantee user safety, the equipment is equipped with multiple protection systems, including overload, short circuit, leakage, and temperature overshoot protection. Additional features include heater disconnection protection, motor overload and phase loss protection, over-temperature shutdown, and a four-color sound and light alarm system. These safety measures make the device highly reliable for continuous operation.
The product has been tested by the Shanghai Testing Technology Research Institute and the Environmental Testing Equipment Quality Supervision and Inspection Center. Its performance fully complies with the IEC540 standard, "Verification Method for Basic Parameters of Environmental Testing Equipment for Electrical and Electronic Products—Aging Test Equipment." As one of the largest aging test devices in China, it fills a critical gap in domestic LCD production technology. It provides an efficient, reliable, and cost-effective solution to enhance the production capacity of liquid crystal displays in the country.
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