操作原理
3700E 系列封装型无电极电导率传感器在溶液的闭合环路中感应产生电流，然后通过测量电流的大小来进行溶液的电导率的测定。电导率传感器驱动线圈 A，在溶液中感应产生交流电流；线圈B 检测感应电流的大小，该电流与溶液的电导率成正比。电导率传感器处理这个信号并显示相应的读数。
极化、油污和污染等问题都不会影响无电极电导率传感器的性能。3700E系列电导率传感器自动温度补偿，可应用于电导率高达2000mS/cm，温度范围在0～200℃之间的溶液。
3700E 系列无电极电导率传感器有四种不同的耐水材质，适用性广泛；
不同材质的电导率传感器适宜的测量介质：见附表
特性和优点
● 选材坚固，无污染设计
● 维护量低
● 多种电导率传感器安装方式，包括卫生型安装
● 接液部分的材料有聚丙烯、PVDF、PEEK或PFA Teflon等可供选择
● 标准的20英尺一体化电缆
量 程： 200~2000000μS/cm
浸湿材料： Polypropylene，PEEK，PFA Teflon®，或PVDF
样品温度： -10～200℃；仅受传感器本体材料和安装硬件限制
最大流速： 3m/s
压力范围： 在 150℃时最高可达200psig；仅受传感器本体材料和安装硬件限制
精 度： > 500 μS/cm: 读数的±0.5%; < 500 μS/cm: ±5 μS/cm
重 量： 0.45kg
备件
| 备件货号 | 仪器型号 | 中文描述 | 英文描述 |
|---|---|---|---|
| 3725E2T | 3700 电磁式电导率传感器 | Poly非接触电导探头 | Electrodeless |
| 3727E2T | 3700 电磁式电导率传感器 | PEEK非接触电导探头 | Electrodeless |
订购指南
来源:哈希水质网站公开信息
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · Controllers and Sensors Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of Controllers and Sensors.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Controllers and Sensors for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · Controllers and Sensors Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of Controllers and Sensors.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Controllers and Sensors for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · Controllers and Sensors Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of Controllers and Sensors.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Controllers and Sensors for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · Controllers and Sensors Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of Controllers and Sensors.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Controllers and Sensors for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
