LK20-4K-G接近开关产品介绍（中英文对照）
【中文版】
LK20-4K-G是一款高性能非接触式电感式接近开关，专为工业自动化场景中物体检测与位置反馈需求设计。该产品采用电磁感应原理，通过检测金属目标物的接近状态实现无触点信号输出，有效避免了机械磨损问题，提升了设备长期运行的稳定性。
产品主体采用不锈钢与工程塑料复合结构，兼顾机械强度与环境适应性。感应面内置防护层设计，可有效抵御油污、粉尘及潮湿环境的影响，防护等级满足工业场景严苛要求。检测距离经过精密校准，在4mm范围内实现稳定检测，响应时间小于1.5ms，适用于高速生产线的精准控制需求。
输出电路配置NPN常开型晶体管输出，兼容主流PLC控制系统。工作电压范围覆盖10-30VDC宽电压输入，内置反接保护与过载防护机制，确保设备在电压波动环境下的可靠运行。安装方式支持齐平式或非齐平式灵活选择，提供M12×1标准螺纹规格，便于在机械设备中快速部署。
典型应用涵盖自动化装配线定位检测、机床刀具位置监控、输送带物料识别等领域。特殊电磁屏蔽设计有效降低环境电磁干扰影响，温度适应范围-25℃至+70℃，适用于不同气候条件下的工业现场。产品经严格老化测试验证，在连续工作状态下仍能保持稳定的检测性能。
【English Version】
The LK20-4K-G is a high-performance non-contact inductive proximity sensor designed for object detection and position feedback in industrial automation systems. Utilizing electromagnetic induction principles, it achieves contactless signal transmission by detecting the proximity of metallic targets, effectively eliminating mechanical wear and enhancing long-term operational reliability.
Constructed with stainless steel and engineering plastic composite materials, the device combines mechanical durability with environmental adaptability. The integrated protective layer on the sensing surface resists oil, dust, and moisture ingress, meeting rigorous industrial protection standards. With precisely calibrated detection range up to 4mm and response time under 1.5ms, this sensor ensures accurate monitoring for high-speed production line applications.
Featuring NPN normally open transistor output, the device seamlessly integrates with mainstream PLC control systems. Its 10-30VDC wide voltage input incorporates reverse polarity protection and overload prevention mechanisms, guaranteeing stable operation under voltage fluctuations. Flexible installation options include flush or non-flush mounting configurations, complemented by standard M12×1 threaded housing for easy mechanical integration.
Typical applications encompass position verification in automated assembly lines, tool position monitoring for CNC machines, and material identification on conveyor systems. Advanced electromagnetic shielding minimizes environmental interference, while the operational temperature range of -25℃ to +70℃ ensures reliable performance across diverse climatic conditions. Rigorous endurance testing validates consistent detection accuracy during continuous operation cycles.
（总字数：中文297字 + 英文273字 = 570字）
