LJ8A3-1-Z/AY電容式接近開關 產品介紹（中英文版）
【中文介紹】
LJ8A3-1-Z/AY系列電容式接近開關是一款基于電容感應原理設計的非接觸式檢測裝置，適用于工業(yè)自動化領域的多種物體檢測需求。該產品通過檢測被測物體介電常數變化實現精準識別，可有效檢測金屬、非金屬及液體等多種材質目標物，為生產流程提供可靠的檢測解決方案。
產品采用緊湊型圓柱結構設計，外殼材質選用304不銹鋼與工程塑料復合制造，兼顧機械強度與環(huán)境適應性。感應面配置防護層設計，可有效抵御粉塵、油污等環(huán)境干擾。其寬電壓設計兼容DC 10-36V電源輸入，支持NPN/PNP雙輸出模式，適配主流自動化控制系統。
該設備具備靈敏可調的檢測特性，通過內置電位器可進行感應距離微調（最大檢測距離8mm），滿足不同應用場景的定制化需求。溫度補償技術確保在-25℃至+70℃工作范圍內保持檢測穩(wěn)定性，特殊電路設計有效抑制電磁干擾，適用于變頻器周邊等復雜電氣環(huán)境。
典型應用場景包括：自動化生產線中的物料到位檢測、包裝機械的薄膜穿透檢測、儲罐液位監(jiān)控、木材/塑料等非金屬加工設備的物料識別等。在食品飲料行業(yè)可用于玻璃/塑料瓶裝液體檢測，在電子制造業(yè)可實現電路板元件缺失檢查。設備安裝方式靈活，支持齊平或非齊平式安裝，配套標準M18螺紋接口簡化部署流程。
【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.
