一、产品简介    Product introduction

        WZP系列工业用隔爆热电阻是一种温度传感器。在工业自控系统中应用极广，通过温度传感器，可将控制对象的温度参数变成电信号传递给显示、记录和调节仪表，对系统实行检测、调节和控制。

        WZP seriesindustrial flameproof thermal resistance is a kind of temperature sensor. It iswidely used in the industrial automatic control system. Through the temperaturesensor, the temperature parameters of the control object can be changed intoelectrical signals and transmitted to the display, recording and regulatinginstruments to detect, adjust and control the system.

        在化工厂生产现场常伴有各种易燃、易爆等化学气体、蒸汽、如果使用普通的热电阻非常不安全，极易引起环境气体爆炸。因此，在这些场合必须使用隔爆热电阻作温度传感器。本公司生产的隔爆热电阻产品适用dIIBT4~dIICT6温度组别区间内具有爆炸性气体危险的场所内。

        Productionsite of a chemical plant is often accompanied by various flammable, explosiveand other chemical gases and vapors. If ordinary thermal resistors are used, itis very unsafe, and it is very easy to cause environmental gas explosion. therefore,flameproof thermal resistance must be used as temperature sensor in theseoccasions. the flameproof thermal resistance products produced by the companyare applicable to places with explosive gas hazards within the temperaturegroup of dIIBT4~dIICT6.

        本公司生产的隔爆热电阻采用引进元件作感温元件，其技术性能符合ZBY301-85工业热电阻技术条件和分度表。同时符合爆炸性环境用隔爆电气设备通用要求GB3836.1~2010、GB3836.2-2010标准。防爆证编号: CNEx19.4448X

Flameproof thermal resistance producedby the company adopts imported components as temperature sensing elements, andits technical performance meets the technical conditions and graduation tableof zby301-85 industrial thermal resistance. At the same time, it meets thegeneral requirements for flameproof electrical equipment for explosiveatmospheres GB3836.1~2010 and GB3836.2-2010 standards. Explosion proofCertificate No.: CNEx19.4448X

二、工作原理   Operational principle

        隔爆或本安热电阻与装配式热电阻的结构，原理基本相同，所区别的是，隔爆或本安型产品接线盒(外壳)在设计上采用隔爆特殊结构，接线盒用高强度铝合金压铸而成，并具有足够的内部空间、壁厚和机械强度，橡胶密封圈的热稳定性均符合国家隔爆标准。所以，当接线盒内部的爆炸性混合气体发生爆炸时，其内压不会破坏接线盒，而由此产生的热能不能向外扩散—传爆。

        Flameproof Or intrinsically safe Thermalresistance And the assembly type Thermal resistance Structure, The same basicprinciples,The difference is, Flameproof Or intrinsically safe product Junctionbox (shell) In the design of the Explosion proof special structure, Wiring boxfor high strength aluminum alloy die-casting and, And has sufficient internalspace, Wall thickness and mechanical strength, The rubber sealing ring Thermalstability Are in line with national standards for explosion proof. So, When thewiring inside the box Explosive gas mixture When the explosion, The innerpressure Will not damage the junction box, The resulting Heat energy can not beoutward diffusion of detonation.

        由于产品采用上述隔爆特殊结构，使产品完全符合使用在dIIBT4至dIICT6、ibBT4、iaIICT6隔爆类别范围内，只要用户严格遵守产品使用规则，产品就能达到可靠的隔爆效果。

        Because the product uses Theexplosion-proof special structure, The product fully meets the use in dIIBT4 TodIICT6、ibBT4、iaIICT6Explosion proof class scope, As long as the user Products in strict compliancewith the rules of use, The product can achieve reliable Explosion proof effect.

三、技术参数   Technical parameter

四、选型图谱    Selection chart

五、型号规格   Model specifications

六、产品分类   Product classification

以上参数仅供参考，如有改动恕不另行通知!

Above parameters arefor reference only and are subject to change without prior notice!