EH-302系列接近傳感器產品介紹
（中文版）
EH-302系列非接觸式接近傳感器是基恩士工業檢測領域的創新產品，采用電磁感應技術實現金屬目標物的可靠檢測。該系列產品內置高頻振蕩電路與信號處理模塊，可在復雜工業環境中保持穩定工作狀態，適用于機械設備、自動化產線等多種工業場景。
產品采用全封閉式不銹鋼外殼結構，表面經特殊防腐蝕處理，能夠有效抵御油污、粉塵及潮濕環境的侵蝕。傳感頭部配置溫度補償電路，在-25℃至+70℃工作范圍內保持檢測精度穩定。其緊湊型圓柱結構（直徑30mm）支持多種安裝方式，可靈活適配不同機械裝置的安裝需求。
在性能參數方面，EH-302提供3mm/5mm/8mm三種標準檢測距離選項，可根據實際應用需求選擇。產品內部搭載環境干擾抑制電路，有效降低周邊電磁設備的影響。工作電壓范圍覆蓋DC10-30V，具備反接保護與過載保護功能，確保設備運行安全。輸出端采用NPN/PNP雙模式設計，兼容主流控制系統接口要求。
本系列產品適用于汽車制造設備的精密定位檢測、食品加工機械的金屬異物監控、物流分揀系統的位置感應等多個工業領域。其抗震結構設計可承受最大50m/s²的機械振動，防護等級達到液體全方位防護標準。產品工作壽命可達10萬小時以上，有效降低設備維護頻率。
（English Version）
The EH-302 Series proximity sensor is a non-contact detection device developed by KEYENCE for industrial automation applications. Utilizing advanced electromagnetic induction technology, this sensor reliably identifies metallic objects without physical contact, making it suitable for various industrial environments including production machinery and automated systems.
Constructed with a fully sealed stainless steel housing, the sensor features specialized surface treatment that provides enhanced resistance against oil contamination, dust accumulation, and moisture exposure. The integrated temperature compensation circuitry ensures consistent detection accuracy across an operational temperature range of -25℃ to +70℃. Its compact cylindrical design (30mm diameter) supports multiple mounting configurations for flexible integration with different mechanical setups.
The EH-302 series offers three standard detection ranges (3mm/5mm/8mm) to accommodate diverse application requirements. Equipped with environmental interference suppression technology, the sensor maintains stable operation in areas with electromagnetic disturbances. Supporting DC10-30V power input with reverse polarity protection and overload protection, the device ensures operational safety. The dual-output configuration (NPN/PNP) provides compatibility with mainstream control systems.
This product series demonstrates versatility across multiple industries, including precision positioning in automotive manufacturing equipment, metal fragment detection in food processing machinery, and position sensing in logistics sorting systems. The shock-resistant structure withstands vibrations up to 50m/s² while maintaining reliable performance. With an extended operational lifespan exceeding 100,000 hours, the sensor significantly reduces maintenance requirements in industrial settings.
Technical Specifications:
- Detection Principle: Electromagnetic induction
- Housing Material: Stainless steel (SUS303)
- Sensing Face Material: PBT resin
- Output Configuration: NPN/PNP selectable
- Response Frequency: 500Hz
- Protection Rating: Full liquid protection level
- Connection Method: 2m shielded cable
該系列產品通過優化電路設計和結構創新，在保證檢測精度的同時提升環境適應能力，為工業自動化控制提供可靠的檢測解決方案。基恩士持續改進制造工藝，確保產品在長期使用中保持性能穩定。
