电接点双金属温度计WZPK-233U 供应
产品概述
WZPK-233U电接点双金属温度计是一款专为工业现场温度监测与控制设计的精密仪器,适用于液体、蒸汽及气体介质的温度测量。该产品采用双金属感温元件原理,通过机械结构将温度变化转化为指针位移,同时配备可调节的上下限电接点装置,实现温度自动报警或控制功能。其核心部件采用优质不锈钢材料,确保在-80℃至+500℃的宽量程范围内稳定工作,满足石油、化工、电力等行业的严苛环境需求。产品具备现场直观显示与远程信号联动的双重功能,为用户提供灵活的温度管理方案。120
产品特点
WZPK-233U电接点双金属温度计具有多重实用特性:其表壳采用防腐蚀设计,支持轴向、径向或万向安装方式,适应不同空间布置需求;双金属螺旋管结构确保响应速度≤40秒,测量精度达1.5级;机械接点装置通过继电器电路实现无源控制,最大承载电流0.7A,可直接驱动小型控制设备。特别设计的抽芯式结构允许不停机维护,显著降低运维成本。产品提供60mm/100mm/150mm三种表盘规格,保护管长度可根据客户需求定制,插入深度建议大于100mm以保证测量准确性。122428
工作原理(Working Principle)
The WZPK-233U bimetal thermometer operates based on differential thermal expansion principle: two bonded metal strips with distinct expansion coefficients form a helical sensing element. As temperature changes, the helical coil winds or unwinds to drive the pointer rotation, displaying real-time temperature on calibrated dial. The integrated electrical contacts trigger at preset temperature thresholds, activating control circuits without external power supply. This mechanical action ensures reliable operation even in high-interference environments.1228
应用领域(Applications)
This instrument is widely adopted in process industries including:
- Oil & Gas: Monitoring pipeline temperatures and overheating protection
- Chemical Plants: Reactor temperature surveillance in corrosive atmospheres
- Power Generation: Bearing temperature detection for rotating equipment
- Food Processing: Hygienic temperature control in sterilization processes
- HVAC Systems: Duct air temperature regulation Its robust construction withstands vibration, moisture, and moderate chemical exposure, making it suitable for harsh operational conditions. The product s dual-scale display (Celsius/Fahrenheit optional) facilitates international project applications.1920
技术参数(Specifications)
• Measurement Range: -80~+500℃ (custom ranges available) • Accuracy Class: 1.5级(Class 1.5) • Contact Capacity: 0.7A AC/DC • Protection Tube Material: 1Cr18Ni9Ti or 316L stainless steel • Installation Thread: M16×1.5/M27×2 or NPT threads • Ambient Operating Limits: -25~+55℃ with ≤85% RH • Electrical Contacts Configuration: SPDT form C (1NO+1NC) • Dial Options: Stainless steel or aluminum with white/color-coded background Standard models feature IP55防护等级 enclosure, while special versions offer enhanced sealing. 52124
选型指导(Selection Guide)
When ordering WZPK-233U, please specify:
- Dial diameter (60/100/150mm)
- Temperature scale range
- Installation type (axial/radial/universal)
- Insertion length (75-2000mm)
- Connection thread standard
- Contact configuration (single/double setpoint)
- Special material requirements Example model code: WZPK-233U-100-0~300℃-L150mm-M27×2-1NO. Our engineering team can provide customized solutions for unique applications. 1124
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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