E3JMR4M2/光电开关/E3JM-R4M2

产品概述

E3JM-R4M2光电开关是欧姆龙（OMRON）品牌下的一款高性能工业级光电传感器，采用回归反射型检测原理，内置M.S.R（镜面反射消除）功能，可有效避免因镜面或高反光物体导致的误检测。该产品设计紧凑，适用于空间受限的安装环境，具备IP67防护等级，能够耐受工业现场常见的油污、粉尘和潮湿环境。其核心功能是通过红外光束的反射变化检测物体存在与否，输出稳定的开关信号，支持入光ON或遮光ON两种动作模式切换。11522

技术特点

E3JM-R4M2采用交直流自由电源设计（DC12-240V/AC24-240V），兼容性广泛，功耗低于3W。产品配备继电器输出触点（1C接点），机械寿命达5000万次以上，响应时间≤30ms，检测距离为4米（使用E39-R1专用反射板时）。其光学系统采用950nm红外光源，配备3-20°指向角，可稳定检测φ75mm以上的不透明物体。独特的温度适应性（-25℃~+55℃）和抗振动设计（10-55Hz/1.5mm振幅）确保在恶劣工况下的可靠性。152224

应用场景

This photoelectric sensor is widely applied in industrial automation scenarios such as conveyor belt material detection, packaging machinery positioning, automotive assembly line counting, and automated warehouse pallet recognition. Its non-contact detection method is suitable for diverse objects including plastic, rubber, wood, and metal, making it ideal for food processing, logistics sorting, and electronic component production lines where delicate handling is required. The product s resistance to ambient light interference (up to 3,000lx under fluorescent light) ensures stable operation under varying lighting conditions.1418

安装与操作

The E3JM-R4M2 features a user-friendly design with visible red LED operation indicators for status monitoring. Its 2-meter fixed cable output simplifies wiring, while the sensitivity adjustment potentiometer allows fine-tuning for different surface reflectivity. The sensor body is constructed with ABS housing and acrylic lens, providing chemical resistance. For installation, it is recommended to maintain a minimum 200mm spacing between multiple units to prevent mutual interference. The product supports horizontal, vertical, or angled mounting via integrated M4 threaded holes.131419

产品优势

Compared with conventional sensors, this model integrates advanced noise suppression circuitry that minimizes false triggering from electromagnetic interference. The optimized optical path design enhances energy efficiency, achieving 30% longer service life than typical photoelectric switches. Its modular structure allows quick lens cleaning and maintenance without disassembly. The universal voltage input eliminates the need for additional power converters, reducing system complexity in multi-voltage environments.4810

注意事项

When using the E3JM-R4M2, avoid direct exposure to strong light sources like sunlight or halogen lamps in the optical axis. For detecting transparent objects, adjust the sensitivity to compensate for light transmission loss. Regular lens cleaning with alcohol wipes is suggested in dusty environments. The product is not suitable for applications involving explosive gases or continuous immersion in liquids. Proper grounding is recommended for installations near high-frequency equipment.141922

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