中英双语产品介绍：
中文版：
WZPK2-425SA隔爆型热电阻是针对化工行业特殊工况研发的智能化测温仪表。该产品采用多层复合防护结构设计，配备高强度不锈钢壳体，能有效阻隔可燃性介质与内部元件的接触传导。经过特殊工艺处理的传感元件具备抗介质渗透特性，在高压、高腐蚀性环境中保持稳定的信号输出性能。
本装置搭载自主开发的温度补偿系统，通过数字化处理技术实现-200℃至+800℃宽量程范围内的精准测量，线性偏差率控制在±0.3%FS以内。模块化结构设计便于安装维护，支持法兰、螺纹等多种工业接口规格。感温部件采用真空烧结工艺，确保测温端与保护套管间形成均匀致密的惰性隔热层，有效防止热传递滞后现象。
产品适用于石油精炼、有机合成、农药制备等存在ⅡA、ⅡB类爆炸性气体环境的场景。经过多道应力释放处理的铠装结构，能承受20MPa以上的瞬时冲击压力。接触部件采用哈氏合金与陶瓷复合材质，耐受PH2-14范围的化学腐蚀。特有的振动缓冲设计使设备在30Hz-2000Hz频率振动环境下仍保持0.1级测量精度。
智能化接线盒集成过载保护模块，支持三线制/四线制灵活接驳。防护等级达到IP68标准，可在水下30米深度连续工作。根据不同工艺流程需求，可提供Pt100、Cu50等多种分度号选择，并支持测温杆长度100mm-2000mm的定制服务。产品出厂前均通过168小时工况模拟测试，确保在复杂电磁环境下的信号传输稳定性。
English Version：
The WZPK2-425SA explosion-proof thermal resistor is an intelligent temperature measurement instrument specifically engineered for chemical industry applications. Featuring a multi-layer composite protection structure and high-strength stainless steel housing, this device effectively isolates combustible media from internal components. Specially processed sensing elements demonstrate anti-permeability characteristics, delivering stable signal output performance in high-pressure and highly corrosive environments.
Equipped with an independently developed temperature compensation system, the device achieves precise measurement across a broad range of -200℃ to +800℃ through digital processing technology, maintaining linear deviation within ±0.3%FS. Modular construction facilitates installation and maintenance, supporting multiple industrial interface standards including flange and threaded connections. The vacuum-sintered thermal sensing unit forms a uniform inert insulation layer between the measuring terminal and protective sleeve, effectively preventing thermal hysteresis.
This product is suitable for petroleum refining, organic synthesis, pesticide production and other scenarios involving Class IIA/IIB explosive gas environments. The stress-relieved armored structure withstands instantaneous impact pressures exceeding 20MPa. Contact components constructed from Hastelloy-ceramic composites resist chemical corrosion within PH2-14 range. Unique vibration damping design maintains 0.1-grade measurement accuracy under 30Hz-2000Hz vibration conditions.
The intelligent terminal box integrates overload protection modules, supporting flexible three-wire/four-wire connections. With IP68 protection rating, it operates continuously at 30-meter underwater depth. Customizable options include Pt100, Cu50 and other graduation types, with probe lengths adjustable from 100mm to 2000mm. Each unit undergoes 168-hour simulated operational testing to ensure signal transmission stability in complex electromagnetic environments.
