LJ12A3-2（4）-Z/BY 接近开关产品介绍
【中文版】
LJ12A3-2（4）-Z/BY 接近开关是一款适用于工业自动化检测的感应装置，采用非接触式检测原理，可实现对金属物体的可靠识别。产品外壳采用工程塑料与金属材料复合结构，兼顾防护性能与信号稳定性，圆柱形设计适配多种安装场景。检测距离可根据实际需求选择8-12mm规格，满足不同工况下的定位需求。
该产品搭载高频振荡电路技术，通过电磁感应原理触发信号输出。当金属目标物进入感应区域时，电路状态自动切换，输出稳定的开关量信号。内置温度补偿模块可有效降低环境温差对检测精度的影响，工作温度范围覆盖-25℃至+70℃，适用于常规工业环境。防护等级达到IP67，可应对粉尘环境与短时液体接触。
产品提供直流两线制与三线制可选配置（NPN/PNP输出），导线规格可选PVC或耐高温硅胶材质，线长支持0.5-3米定制。安装方式包含齐平式与非齐平式两种方案，支持M12×1螺纹固定或支架辅助安装。典型应用涵盖机床定位、输送带检测、自动化装配线等多个领域，特别适用于需要抗电磁干扰的场合。
选型时需注意目标物材质特性，本产品对铁磁性金属具有最优检测灵敏度。建议定期清洁检测面以保持最佳工作状态，避免强腐蚀性环境长期使用。产品出厂前经过多道工序测试，确保批次一致性。可根据客户需求提供定制化服务，包括特殊导线长度、接插件选配等解决方案。
【English Version】
The LJ12A3-2(4)-Z/BY proximity sensor is an industrial-grade detection device employing non-contact sensing technology. Engineered with composite housing materials combining engineering plastics and metal components, its cylindrical structure ensures durability while maintaining signal stability. Available with 8-12mm detection ranges, this product provides flexible solutions for various positioning requirements.
Utilizing high-frequency oscillation circuit technology, the sensor generates stable switching signals through electromagnetic induction when metal targets enter its detection field. The built-in temperature compensation module enhances measurement consistency across operating temperatures from -25℃ to +70℃. With IP67 protection rating, it demonstrates reliable performance in dusty environments or occasional liquid exposure.
This product offers configurable wiring options including 2-wire and 3-wire DC circuits (NPN/PNP outputs), available with PVC or high-temperature silicone cables ranging from 0.5 to 3 meters. Installation flexibility is achieved through flush or non-flush mounting styles, compatible with M12×1 threaded fixtures or bracket assemblies. Typical applications span machine tool positioning, conveyor monitoring, and automated production lines, particularly effective in environments requiring electromagnetic interference resistance.
When selecting models, material characteristics of target objects should be considered, as the device shows optimal sensitivity towards ferrous metals. Regular maintenance including surface cleaning is recommended to sustain detection accuracy. Customization services are available for specialized requirements such as extended cable lengths and connector configurations. Each unit undergoes rigorous quality control processes to ensure product reliability.
