LJ8A3-1-Z/AY电容式接近开关 产品介绍（中英文版）
【中文介绍】
LJ8A3-1-Z/AY系列电容式接近开关是一款基于电容感应原理设计的非接触式检测装置，适用于工业自动化领域的多种物体检测需求。该产品通过检测被测物体介电常数变化实现精准识别，可有效检测金属、非金属及液体等多种材质目标物，为生产流程提供可靠的检测解决方案。
产品采用紧凑型圆柱结构设计，外壳材质选用304不锈钢与工程塑料复合制造，兼顾机械强度与环境适应性。感应面配置防护层设计，可有效抵御粉尘、油污等环境干扰。其宽电压设计兼容DC 10-36V电源输入，支持NPN/PNP双输出模式，适配主流自动化控制系统。
该设备具备灵敏可调的检测特性，通过内置电位器可进行感应距离微调（最大检测距离8mm），满足不同应用场景的定制化需求。温度补偿技术确保在-25℃至+70℃工作范围内保持检测稳定性，特殊电路设计有效抑制电磁干扰，适用于变频器周边等复杂电气环境。
典型应用场景包括：自动化生产线中的物料到位检测、包装机械的薄膜穿透检测、储罐液位监控、木材/塑料等非金属加工设备的物料识别等。在食品饮料行业可用于玻璃/塑料瓶装液体检测，在电子制造业可实现电路板元件缺失检查。设备安装方式灵活，支持齐平或非齐平式安装，配套标准M18螺纹接口简化部署流程。
【English Introduction】
The LJ8A3-1-Z/AY capacitive proximity sensor is a non-contact detection device based on capacitive sensing technology, designed for diverse object detection requirements in industrial automation systems. By detecting dielectric constant variations of target objects, this product achieves precise identification of various materials including metals, non-metals and liquids, providing reliable detection solutions for production processes.
Featuring a compact cylindrical design, the housing combines 304 stainless steel with engineering plastics to ensure both mechanical durability and environmental adaptability. The sensing surface incorporates protective layer technology that effectively resists interference from dust and oil contamination. With wide voltage compatibility (DC 10-36V) and dual NPN/PNP output configurations, it seamlessly integrates with mainstream industrial control systems.
Equipped with adjustable sensitivity control, the built-in potentiometer enables precise detection range calibration (maximum 8mm), accommodating customized application requirements. Advanced temperature compensation technology maintains stable operation within -25℃ to +70℃, while specialized circuit design effectively suppresses electromagnetic interference, making it suitable for challenging environments such as inverter-controlled systems.
Typical applications include: material presence detection in automated production lines, film penetration monitoring in packaging machinery, liquid level sensing in storage tanks, and non-metallic material identification in wood/plastic processing equipment. In food & beverage industry, it enables reliable detection of liquid levels in glass/plastic containers, while in electronics manufacturing, it facilitates component absence inspection on PCBs. Flexible installation options with standard M18 threaded mounting interface support both flush and non-flush mounting configurations.
