电接点双金属温度计WZPK-304U 厂家
产品概述
电接点双金属温度计WZPK-304U是一款专为工业现场温度监测与自动控制设计的精密仪表,适用于液体、蒸汽及气体介质的温度测量。其核心元件采用多层金属片叠压而成的双金属感温组件,通过温度变化引发金属片形变驱动指针旋转,实现直观的温度显示。该产品测量范围覆盖-80℃至+500℃,可满足石油、化工、电力、机械制造等领域的多样化需求。13
技术特点
WZPK-304U具备现场显示功能,表盘设计清晰易读,支持轴向、径向或万向安装方式,适配不同场景的空间限制。产品外壳采用不锈钢材质,具有防水、耐腐蚀及抗震特性,可在复杂环境中长期稳定工作。内置电接点装置可根据预设温度阈值触发继电器动作,实现自动报警或电源切断,提升设备运行安全性。热响应时间≤40秒,确保对温度变化的快速响应。61014
工作原理
当被测介质温度变化时,双金属感温元件自由端产生位移,通过传动机构带动指针偏转,同时在标度盘上指示对应温度值。若温度超过预设上下限,动触点与定触点接触或断开,通过电路继电器输出控制信号,实现温度联锁保护。其机械结构简单可靠,无需外部电源即可完成本地指示功能。2817
应用场景
该型号广泛用于锅炉管道、反应釜、热交换系统等需要对温度进行实时监控的场合。其耐震设计特别适合存在机械振动的环境,如船舶发动机舱、压缩机设备等。用户可根据需求选择不同保护管长度、螺纹规格(如M27×2、G1/2等)及表盘尺寸(Φ60/100/150mm),实现个性化配置。182122
Product Overview
The WZPK-304U Bimetallic Thermometer with Electrical Contact is a precision instrument designed for industrial temperature monitoring and automatic control, capable of measuring liquids, steam, and gases. Its core component consists of laminated bimetallic strips that deform with temperature changes to drive pointer rotation, providing direct reading on the dial. With a measurement range of -80℃ to +500℃, it serves diverse applications in petroleum, chemical, power generation, and machinery industries. 315
Key Features
Featuring a stainless steel casing, the WZPK-304U offers IP55 protection against water ingress and corrosion. The adjustable electrical contacts enable customizable alarm thresholds for automated safety interventions. Its spiral-shaped bimetallic coil ensures ≤40s thermal response time, while axial/radial/universal mounting options adapt to spatial constraints. The vibration-resistant design maintains accuracy in high-motion environments without requiring external power for local indication. 61320
Operational Principle
Temperature variations cause differential expansion of the bimetallic strip, mechanically displacing the pointer along the calibrated scale. Integrated electrical contacts activate when reaching preset limits, triggering relay signals for control circuits. This purely mechanical operation eliminates electronic dependencies, ensuring reliability in harsh conditions. The modular structure allows easy maintenance with replaceable core components. 21026
Typical Applications
Ideal for boilers, reactors, and HVAC systems, this model excels in scenarios requiring vibration tolerance such as marine engineering or compressor stations. Customizable parameters include immersion length (100-2000mm), process connections (NPT/G threads), and dial orientations to match specific installation requirements. The product’s robust construction minimizes maintenance needs while providing long-term stability. 141827
电接点双金属温度计
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应用
电接点双金属温度计应用于生产现场对温度需自动控制和报警。直接测量各种生产过程中-80~500℃范围内体、蒸汽
和气体介质温度。
电接点双金属温度计的特点:
• 现场显示温度,直观方便;
• 具有自动切断电源和报警功能;
• 安全可靠,使用寿命长;
• 多种结构形式,可满足不同要求。
工作原理
电接点双金属温度计是利用温度变化时带动触点变化,当其与上下限触点或断开的同时,使电路中的继电器动作,从而自动控制及报警。
主要技术参数
• 产品执行标准:JB/T8803-1998 GB3836-83
• 标度盘公称直径:100
• 精度等级:(1.0),1.5
• 热响应时间:≤40S
• 防护等级:IP55
• 正常工作大气条件:温度-25~+55℃,相对湿度≤85%
• 设定点误差:设定点误差应不超过基本误差限的1.5倍。
• 切换差:切换差应不超过基本误差限的1.5倍。
• 切换重复性:切换重复性极限范围不大于基本误差限值的1/2。
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