产品概述：
WZPK-204S型电接点双金属温度计是一款专为工业过程控制设计的机械式测温仪表，采用双金属片传感原理与电气触点系统相结合的技术方案。该产品通过物理形变驱动指针指示温度值，同时配备可调节接点装置，可在预设温度点触发开关信号，实现对设备运行状态的自动监控，适用于对温度控制有双向需求的工业场景。

核心优势：
仪表主体采用316不锈钢壳体配合强化玻璃表盖，有效抵御潮湿、粉尘及轻度化学腐蚀环境。双层密封结构设计使产品达到IP65防护等级，保障内部机械组件的长期稳定性。表盘经过哑光防眩处理，配合高对比度刻度标识，确保在强光或弱光环境下均可清晰读数。旋转磁调式触点系统支持±1%满量程的触点位置微调功能，用户可通过外部旋钮快速设定动作温度值。

应用领域：
本产品在石油化工领域可用于反应釜温度安全联锁，在食品加工环节实现杀菌设备温度监控，在暖通空调系统中辅助冷水机组启停控制，在电力行业服务于变压器油温保护，同时也可集成至实验室设备的恒温管理模块。其无源触点设计兼容PLC、继电器等多种控制系统，提供常开/常闭自由组合的接线方式。

技术规格：

• 测温范围：-80℃至+500℃（量程可分段定制）
• 精度等级：1.5级
• 接点容量：220VAC/3A（阻性负载）
• 探杆长度：100-1000mm（可选）
• 连接方式：M27×2螺纹或法兰安装
• 环境适应性：-40℃至+80℃

服务支持：
我们提供探杆长度、接口规格、刻度单位的定制化服务，可根据现场工况推荐最优测温方案。产品出厂前经过72小时工况模拟测试，确保测量机构与触点系统的动作可靠性。

Product Overview:
The WZPK-204S Electrical Contact Bimetal Thermometer is a mechanical temperature measurement instrument specifically designed for industrial process control. Combining bimetal strip sensing technology with an electrical contact system, this device utilizes physical deformation to drive pointer movement for temperature indication. The adjustable contact mechanism generates switch signals at preset temperature points, enabling automatic monitoring of equipment status. It is particularly suitable for industrial applications requiring bidirectional temperature control.

Technical Highlights:
Constructed with 316 stainless steel housing and tempered glass cover, the instrument demonstrates excellent resistance to moisture, dust, and mild chemical corrosion. The dual-sealed structure achieves IP65 protection rating, ensuring long-term stability of internal components. The anti-glare matte dial with high-contrast markings guarantees legibility under various lighting conditions. The rotary magnetic contact adjustment system allows ±1% full-scale contact position fine-tuning, enabling quick temperature setpoint configuration via external knob.

Application Scenarios:
This product serves multiple industries including petrochemical plant reactor safety interlock systems, food sterilization equipment monitoring, HVAC chiller unit control, power transformer oil temperature protection, and laboratory thermal management modules. The passive contact design supports integration with PLCs and relay control systems, offering flexible NO/NC contact configurations.

Key Parameters:

• Temperature range: -80℃ to +500℃ (customizable segments)
• Accuracy class: 1.5
• Contact capacity: 220VAC/3A (resistive load)
• Stem length: 100-1000mm (optional)
• Connection: M27×2 thread or flange mounting
• Ambient tolerance: -40℃ to +80℃

Customization Service:
We provide tailored solutions for stem dimensions, connection interfaces, and scale units. Our engineering team offers technical consultation to optimize temperature measurement schemes for specific operating conditions. Each unit undergoes 72-hour simulated operational testing to verify measurement accuracy and contact reliability prior to shipment.