中英文产品介绍：
【中文版】
SZM-4磁电转速表是一款专为工业设备转速监测设计的智能化仪表，采用非接触式磁电感应原理，可广泛应用于机械制造、能源电力、交通运输等领域的旋转设备运行状态监测。该产品通过检测金属齿盘或凸起标记物的磁场变化，实现对设备转速的精准测量，测量范围覆盖20-20,000 RPM，满足不同工况需求。
产品采用全封闭式金属外壳设计，防护等级达到IP65，可在-30℃至+80℃的宽温环境下稳定工作，有效抵御粉尘、油污及潮湿环境的影响。核心传感器模块运用抗干扰技术，有效屏蔽电磁杂波对测量信号的干扰，确保在复杂工业场景下的数据可靠性。表头配备高清LED数字显示屏，支持转速值的实时显示，并可选配4-20mA模拟信号或RS485数字信号输出，便于接入PLC/DCS系统实现自动化控制。
本产品具有安装便捷的特点，无需复杂调试即可快速投入使用。传感器探头与测量目标保持3-8mm的推荐间隙，通过卡箍或螺纹固定方式实现灵活安装。内置温度补偿电路可自动修正环境温度变化带来的测量偏差，长期使用仍能保持±0.1%FS的测量精度。产品特别适用于电机、风机、泵机、传动轴等旋转设备的预防性维护，通过持续监测转速波动及时发现设备异常，为设备健康管理提供有效数据支持。
【English Version】
The SZM-4 Magnetoelectric Tachometer is an intelligent instrument designed for rotational speed monitoring in industrial applications. Utilizing non-contact electromagnetic induction technology, it is widely applicable in rotating equipment monitoring across machinery manufacturing, energy power generation, and transportation sectors. By detecting magnetic field variations from metal gear discs or raised markers, the device achieves precise rotational speed measurement within 20-20,000 RPM range, accommodating diverse operational requirements.
Featuring an enclosed metal housing with IP65 protection rating, the instrument maintains stable performance in challenging environments from -30℃ to +80℃, demonstrating excellent resistance to dust, oil contaminants, and moisture. Its core sensor module incorporates advanced anti-interference technology to eliminate electromagnetic noise, ensuring reliable data acquisition in complex industrial settings. The LED digital display provides real-time speed visualization, with optional 4-20mA analog or RS485 digital outputs for seamless integration into PLC/DCS control systems.
The product boasts simplified installation procedures requiring minimal configuration. The sensor probe maintains a recommended 3-8mm air gap from measured targets, supporting versatile mounting via clamp brackets or threaded connections. Built-in temperature compensation circuitry automatically adjusts measurement deviations caused by ambient temperature fluctuations, sustaining ±0.1%FS accuracy over extended service periods. Particularly suitable for preventive maintenance of motors, fans, pumps, and drive shafts, it enables early fault detection through continuous speed fluctuation monitoring, delivering critical data support for equipment health management systems.
