产品概述
WZPK-303U薄膜铂热电阻是一款基于先进薄膜传感技术开发的高精度温度检测元件，适用于工业自动化、能源管理、环境监测等多元化场景的温度测量需求。该产品采用特殊工艺将纳米级铂金属层均匀沉积于陶瓷基片表面，通过精密激光微调技术实现电阻特性的精确控制，确保温度信号采集的线性度与重复性。
核心优势
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精密温度感知：通过优化薄膜结构设计，实现±0.15℃的测量精度（0℃时），在-50℃～300℃范围内保持稳定的温度响应特性。渐变式温度补偿算法有效降低环境波动对测量结果的影响。
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动态响应优化：独特的微型化传感单元设计使热响应时间缩短至传统产品的60%，梯度温度场中的响应滞后小于1.2秒（液体介质），满足快速温度变化的捕捉需求。
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环境适应性：316L不锈钢防护壳体采用无缝焊接工艺，配合双层氧化铝绝缘衬套，可在IP67防护等级下承受20Bar静压。表面经钝化处理的探杆结构有效抵抗酸碱介质侵蚀。
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信号稳定性：全量程范围内电阻-温度转换偏差小于0.05%FS，年漂移量控制在0.02℃以内。模块化接线端子支持三线/四线制接法，兼容主流控制系统接口。
应用场景
• 工业过程控制：适用于反应釜温度监控、管道流体测温等场景
• 暖通系统：中央空调冷热交换监测、地源热泵系统控制
• 食品加工：巴氏杀菌温度链追踪、冷冻仓储环境监控
• 实验室设备：恒温槽校准、培养箱温度反馈
技术参数
测量范围：-50～300℃（可定制扩展）
探头直径：3mm/6mm（可选）
保护管材质：316L/哈氏合金（可选）
引线长度：标准1.5m（支持定制）
电气接口：M12×1.5/G½螺纹
Product Overview
The WZPK-303U thin-film platinum RTD is a high-precision temperature sensing device developed with advanced thin-film deposition technology, designed for temperature measurement in industrial automation, energy management, and environmental monitoring applications. Its nano-scale platinum layer is uniformly deposited on ceramic substrate through magnetron sputtering process, with laser trimming ensuring precise resistance characteristics.
Key Features
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Precision Measurement: Achieves ±0.15℃ accuracy at 0℃ with optimized film structure, maintaining stable performance across -50℃ to 300℃ range. Adaptive temperature compensation algorithm minimizes environmental interference.
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Rapid Response: Miniaturized sensing element reduces thermal response time to 60% of conventional products, showing less than 1.2s lag in liquid media for dynamic temperature tracking.
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Robust Construction: Seamless 316L stainless steel sheath with dual-layer alumina insulation provides IP67 protection and 20Bar pressure resistance. Passivated surface treatment enhances corrosion resistance.
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Signal Integrity: Full-scale resistance-temperature conversion deviation below 0.05%FS with annual drift limited to 0.02℃. Modular terminals support 3/4-wire connections for control system compatibility.
Application Fields
• Process industries: Reactor temperature monitoring, pipeline fluid measurement
• HVAC systems: Heat exchanger control, geothermal pump management
• Food processing: Pasteurization tracking, cold chain monitoring
• Laboratory: Calibration bath control, incubator regulation
Technical Specifications
Range: -50～300℃ (extendable)
Probe diameter: 3mm/6mm (optional)
Sheath material: 316L/Hastelloy (optional)
Lead length: Standard 1.5m (customizable)
Connection: M12×1.5/G½ thread
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