电接点双金属温度计 WRN-624 产品介绍
中文版：
WRN-624型电接点双金属温度计是一款专为工业温度监测设计的机电一体化仪表，采用双金属传感技术与电接点控制系统相结合的设计方案。产品通过机械结构与电气组件的协同作用，实现温度参数的直观显示与自动化控制功能，适用于石油化工、食品加工、暖通空调等领域的温度管理需求。
该温度计核心部件采用多层复合金属片结构，通过热膨胀系数差异原理感知温度变化。金属保护套管经特殊工艺处理，具备耐腐蚀、抗震动特性，可在-20℃至500℃范围内稳定运行（根据型号配置不同）。指针式表盘设计提供清晰可视的实时温度读数，表盘直径标配80mm或100mm可选，支持轴向、径向等多种安装方式。
电接点控制系统配置可调节上下限触点，用户可通过旋转表盘内置旋钮预设动作温度值。当环境温度达到设定阈值时，触点机构将触发开关信号，联动外部控制系统实现加热/冷却设备的启停控制。触点容量达到AC 220V/3A（阻性负载），满足常规工业控制需求。
产品结构采用全密封设计，防护等级达到IP55标准，有效防止粉尘侵入和水流喷溅。外壳选用304不锈钢材质，经过二次退火工艺增强机械强度，螺纹接口符合通用工业管径规格。表盘玻璃采用钢化材质配合密封胶圈，确保在温差变化较大环境中仍保持良好密封性。
应用场景覆盖锅炉设备温度监控、注塑成型机温控系统、中央空调机组保护装置等多个领域。可根据客户需求提供多种探头长度（50mm至500mm）及连接螺纹规格（M16×1.5、G1/2等），支持垂直安装、水平安装等多种工况要求。产品出厂前经过72小时连续工况模拟测试，确保运行稳定性。
English Version:
The WRN-624 Bimetallic Thermometer with Electrical Contact is an electromechanical instrument designed for industrial temperature monitoring. Combining bimetallic sensing technology with an electrical contact control system, this device provides both visual temperature indication and automated control capabilities, making it suitable for temperature management in petrochemical, food processing, HVAC, and other industrial applications.
At the core of the thermometer lies a multi-layer composite bimetallic strip that detects temperature variations through differential thermal expansion. The metal protective sleeve undergoes special surface treatment to enhance corrosion resistance and vibration tolerance, maintaining stable performance within a range of -20℃ to 500℃ (depending on model configuration). The analog dial with 80mm or 100mm diameter options ensures clear visibility, supporting axial, radial, and other installation orientations.
The adjustable electrical contact system features upper/lower limit setting capabilities. Users can preset activation thresholds via integrated dial knobs. When ambient temperature reaches the preset value, the contact mechanism triggers switching signals to control connected heating/cooling equipment. The contact rating reaches AC 220V/3A (resistive load), meeting common industrial control requirements.
Constructed with a fully sealed housing providing IP55 protection against dust and water jets, the stainless steel (304 grade) enclosure undergoes double annealing for enhanced durability. Standard pipe threads comply with industrial specifications, while tempered glass and compression seals maintain integrity under significant thermal fluctuations.
This thermometer finds applications in boiler temperature monitoring, injection molding machine controls, and HVAC protection systems. Customizable probe lengths (50mm-500mm) and connection threads (M16×1.5, G1/2, etc.) accommodate various installation requirements. Vertical and horizontal mounting options are available with 72-hour pre-delivery endurance testing ensuring operational reliability.
Technical Parameters（通用参数）:
Measurement Range: -20-500℃ (customizable ranges)
Accuracy Class: ±1.5% F.S.
Probe Diameter: Φ6mm/Φ8mm
Insertion Length: 50-500mm
Thread Connection: M16×1.5/G1/2/NPT etc.
Electrical Contact: SPDT switch
Contact Capacity: 220VAC 3A (Resistive)
Protection Rating: IP55
本产品提供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。通过优化机械结构设计与材料处理工艺，设备在长期使用过程中保持稳定的温度响应特性与控制精度。
