LJC12A3-A-Z/BXBY/AX/AY 電容式接近開關產品介紹（中文版）
LJC12A3-A-Z/BXBY/AX/AY系列電容式接近開關是一種基于電容感應原理設計的非接觸式檢測裝置，適用于工業自動化、機械設備、物料控制等領域。該系列產品采用常開（NO）與常閉（NC）兩種觸點配置，可根據應用場景靈活選擇，實現對金屬及非金屬物體的可靠檢測。
產品通過檢測被測物體介電常數的變化觸發信號輸出，有效檢測距離可調，適應不同尺寸和材質的物體識別需求。殼體采用工程塑料材質，具備良好的抗沖擊性和耐腐蝕性，可在-25℃至+70℃環境溫度下穩定工作。緊湊型結構設計（直徑12mm）便于安裝，提供軸向（AX）、徑向（AY）及多向（BXBY）等多種感應方向選擇，滿足復雜空間布局要求。
常開型（NO）配置在無目標物時保持開路狀態，檢測到物體時閉合電路，適用于物料到位確認、流水線計數等場景；常閉型（NC）則相反，適用于安全防護、缺料報警等需要持續監控的應用。產品支持10-30V DC寬電壓輸入，輸出端采用短路保護和反接保護設計，確保在復雜工況下的穩定運行。
應用領域涵蓋包裝機械的物料檢測、自動化產線的工件定位、液位控制系統的介質識別等場景。優化的抗干擾設計有效降低環境電磁干擾影響，防護等級達到IP67，可在粉塵、油污等工業環境中長期使用。產品提供LED狀態指示燈，便于現場調試和維護。
LJC12A3-A-Z/BXBY/AX/AY Capacitive Proximity Switch Introduction (English Version)
The LJC12A3-A-Z/BXBY/AX/AY series capacitive proximity switches are non-contact detection devices based on capacitive sensing technology, designed for industrial automation, machinery equipment, and material handling systems. Available in both Normally Open (NO) and Normally Closed (NC) contact configurations, these switches provide flexible solutions for detecting metallic and non-metallic objects.
Utilizing dielectric constant variation detection principle, the switches offer adjustable sensing distances to accommodate objects of various sizes and materials. The engineering plastic housing ensures impact resistance and corrosion protection, maintaining stable operation within -25℃ to +70℃ temperature range. With a compact 12mm diameter design, the product supports multiple sensing orientations including axial (AX), radial (AY), and multi-directional (BXBY) configurations for versatile installation in confined spaces.
The Normally Open (NO) model maintains an open circuit state until detecting a target object, ideal for material presence verification and production line counting. The Normally Closed (NC) version operates inversely, suitable for safety monitoring and material shortage alert systems. Featuring 10-30V DC wide voltage input compatibility, the switches incorporate short-circuit protection and reverse polarity protection for enhanced reliability in demanding environments.
Applications include material detection in packaging machinery, workpiece positioning in automated production lines, and medium identification in liquid level control systems. The optimized anti-interference design minimizes electromagnetic disturbances, while IP67 protection rating ensures durability in dusty or oily industrial settings. An integrated LED status indicator facilitates on-site commissioning and maintenance operations.
Key advantages include stable performance across material variations, simplified installation through multiple mounting options, and adaptive detection capability for diverse industrial scenarios. This product series demonstrates balanced sensitivity and environmental adaptability, providing cost-effective solutions for object detection requirements in modern industrial control systems.
