SD-3020CD 接近开关产品介绍（中英文对照）

一、产品概述
SD-3020CD 接近开关是一款非接触式电子检测装置，采用电磁感应原理实现对金属物体的可靠探测。该产品具备结构紧凑、响应灵敏的特点，适用于工业自动化控制系统中物体位置检测、行程控制等场景。凭借稳定的工作性能，可广泛应用于机械制造、汽车工业、物流仓储等领域。

The SD-3020CD proximity switch is a non-contact electronic detection device that utilizes electromagnetic induction principles to reliably detect metal objects. With its compact structure and sensitive response characteristics, this product is suitable for object position detection and stroke control in industrial automation systems. Featuring stable performance, it can be widely applied in machinery manufacturing, automotive industries, logistics warehousing and other fields.

二、核心特点

1. 环境适应性：外壳采用工程塑料与金属复合材质，具备良好的耐冲击性和耐腐蚀性，可在-25℃至+70℃温度范围内保持稳定工作状态，防护等级满足常规工业环境需求。
2. 检测性能：典型检测距离达8mm（具体参数根据安装条件变化），支持铁、钢、不锈钢等多种金属材质检测，响应频率最高可达1000Hz。
3. 安装便捷：圆柱形一体化设计（直径30mm，长度70mm），提供M30×1.5标准螺纹接口，支持嵌入式或表面安装方式，配备LED工作状态指示灯。

Core Features:

1. Environmental Adaptability: The housing combines engineering plastic and metal composite materials, offering good impact resistance and corrosion resistance. Maintains stable operation within -25℃ to +70℃ temperature range, meeting protection requirements for general industrial environments.
2. Detection Performance: Typical detection distance up to 8mm (specific parameters vary by installation conditions). Capable of detecting various metal materials including iron, steel, and stainless steel, with maximum response frequency reaching 1000Hz.
3. Easy Installation: Cylindrical integrated design (30mm diameter × 70mm length) with M30×1.5 standard threaded interface. Supports both embedded and surface mounting, equipped with LED status indicator.

三、技术参数
工作电压：DC 10-30V
输出类型：NPN/PNP双极性可选
空载电流：≤15mA
输出负载：≤200mA
重复精度：±0.1mm
环境湿度：35-95% RH（无凝露）

Technical Parameters:
Operating Voltage: DC 10-30V
Output Type: Selectable NPN/PNP bipolar
No-load Current: ≤15mA
Output Load: ≤200mA
Repeat Accuracy: ±0.1mm
Ambient Humidity: 35-95% RH (non-condensing)

四、应用价值
该产品通过优化电路设计提升了抗电磁干扰能力，内置过载保护和反向极性保护功能，有效延长设备使用寿命。在自动化生产线中可实现精准的物料定位检测，在包装机械领域用于安全门禁控制，在输送系统内完成物体计数等多元化应用。产品价格根据输出类型、线缆长度等配置选项有所不同，具体可咨询授权生产厂商。

Application Value:
Enhanced electromagnetic interference resistance through optimized circuit design. Built-in overload protection and reverse polarity protection effectively extend service life. Enables precise material positioning in automated production lines, safety access control in packaging machinery, and object counting in conveying systems. Product pricing varies based on output type, cable length and other configuration options. For detailed information, please consult authorized manufacturers.

五、生产服务
本产品由国内专业传感器制造商持续研发改进，生产工厂配备自动化检测设备，执行严格的质量控制流程。提供标准18个月质保周期，技术支持团队可协助客户完成选型安装指导。产品规格参数可能因技术升级进行调整，实际性能以最新技术文档为准。

Production Service:
Continuously improved by domestic professional sensor manufacturers. Production facilities equipped with automated testing equipment and strict quality control processes. Standard 18-month warranty provided. Technical support team assists customers with model selection and installation guidance. Product specifications may be adjusted due to technical upgrades, actual performance subject to latest technical documentation.