中文产品介绍]

WZPK2-175SA电接点双金属温度计是一款专为工业流程温度监测设计的精密仪器，采用双层金属螺旋传感技术实现温度物理量的机械式转换。该产品通过独特的机械结构设计，将温度变化转化为可直观读取的指针指示，并配备可调节电接点装置，适用于需要温度控制与信号输出的工业场景。

本产品核心元件采用耐腐蚀金属复合材料制造，表壳经精密冲压工艺成型，具备IP65防护等级，可有效抵御粉尘侵入和水流喷射。双层金属传感系统经过特殊热处理工艺，在-50℃至500℃范围内实现线性温度响应，指针回差误差控制在量程的±1.5%以内。电接点模块采用银合金触点材质，接触电阻稳定在50mΩ以下，支持最高250V AC/3A电气负载。

产品采用径向安装结构，表盘直径75mm，感温管长度175mm，满足常规工业设备安装需求。表面覆盖防震钢化玻璃，可在振动频率低于55Hz、振幅不大于1mm的工况环境下保持稳定工作。针对不同介质测量需求，感温管可提供304/316不锈钢材质选项，末端可定制螺纹、法兰等连接方式。

该温度计适用于石油化工设备反应釜温度监控、食品机械杀菌温度追踪、暖通系统过热保护等场景。通过双设定点调节旋钮，用户可自定义上下限报警值，配合继电器模块实现设备联动控制。指针式显示规避了电子元件老化带来的偏差风险，机械结构设计使产品在无外部电源环境下仍可保持基础监控功能。

[English Product Introduction]

The WZPK2-175SA Bimetallic Temperature Switch is a precision instrument designed for industrial process temperature monitoring, employing helical bimetallic strip sensing technology to achieve mechanical conversion of temperature parameters. This device translates thermal variations into visible pointer readings through optimized mechanical construction, featuring adjustable electrical contacts for temperature control applications requiring signal output.

Constructed with corrosion-resistant metal composites, the housing adopts precision stamping technology to achieve IP65 protection rating, effectively resisting dust ingress and water jet exposure. The bimetallic sensing system undergoes specialized heat treatment processes, delivering linear temperature response within -50℃ to 500℃ range with pointer hysteresis controlled within ±1.5% of span. The contact module utilizes silver alloy material maintaining stable contact resistance below 50mΩ, supporting electrical loads up to 250V AC/3A.

Featuring radial mounting configuration, the instrument incorporates a 75mm diameter dial and 175mm sensing probe length suitable for standard industrial installations. Shock-resistant tempered glass cover ensures stable operation under vibration conditions below 55Hz frequency and 1mm amplitude. Customizable probe options include 304/316 stainless steel materials with optional threaded or flanged connections for diverse medium measurement requirements.

This thermometer is ideal for reactor temperature monitoring in petrochemical plants, sterilization process tracking in food processing equipment, and overheat protection in HVAC systems. Dual adjustable setpoint knobs allow users to define upper/lower alarm thresholds, enabling equipment interlocking via relay modules. Analog display eliminates deviation risks from electronic component aging, while mechanical architecture ensures basic monitoring functionality without external power supply.

The product emphasizes structural reliability through cold-forged pressure components and vacuum-sealed movement assembly. Special attention is given to thermal expansion compensation design, ensuring measurement stability during rapid temperature fluctuations. Optional magnetic drive coupling configuration provides galvanic isolation for explosive environments. Periodic maintenance recommendations include annual bearing lubrication and triennial contact resistance verification to sustain long-term operational accuracy.