工作原理：
LDO® II 溶解氧传感器基于荧光猝熄原理。蓝光照射到荧光物质上激发出红光，由于氧分子可以带走能量，所以激发的红光的时间和强度与氧分子的浓度成反比。溶解氧测定仪通过测量激发红光与参比光的相位差，并与内部标定值对比，从而可计算出氧分子的浓度。
典型应用：
LDO® II 溶解氧传感器适用于污水、工业用水、饮用水等行业溶解氧的测定。
特性和优点：
● 无需校准
LDO® II溶解氧传感器出厂前已完成校准，开箱即用，无需校准，荧光帽使用寿命长达两年。
● 无需更换膜片
采用哈希公司突破性的荧光技术，该溶解氧传感器基本无需维护，因为已无需更换膜片，也不用补充电解质溶液，更无需对阳极和阴极进行打磨清洁。
● 服务无遗漏
该溶解氧传感器具有可自定义的清洗服务提示功能，在溶解氧的测定过程中到时自动触发服务提示消息，提醒用户对溶解氧传感器进行清洗，确保不会错过清洗周期。
● 无漂移
划时代的3D校准技术，使得LDO® II溶解氧传感器在出厂前已完成准确校准，使溶解氧的测定比以往任何时候都更准确！
● 更坚固
LDO® II溶解氧传感器壳体在采用新材料的同时进行O型圈和超声双重密封，耐腐蚀防进水，提高了耐用性。同时减小了探头尺寸，使溶解氧的测定操作更简单，更适用于污水、工业废水等恶劣环境。
测量范围 0 ~ 20.00 ppm
0 ~ 20.0 mg/L
0 ~200% 饱和度
传感器浸入深度 压力限值：34 米，345 千帕(112 英尺)，345千帕 (50磅)；
测量精度 低于 5 ppm 时为 ±0.1 ppm
高于 5 ppm 时为 ±0.2 ppm
温度： ±0.2°C
传输距离 使用接线盒最长可达1000 米(3280英尺)
响应时间 20ºC时：
60 秒左右以内达到95%
40 秒左右以内达到90%
电缆长度 10 米
分辨率 0.01 ppm (mg/L) / 0.1% 饱和度
接液材质 荧光帽：丙烯酸树脂。探头本体：CPVC ，聚氨酯，Viton，Noryl，316不锈钢
重现性 ±0.1 ppm (mg/L)
尺寸 直径 x 长度：49.53 x 255.27毫米(1.95 x 10.05英寸)
工作温度 0 到 50°C (32 到 122°F)
重量 1千克(2.2磅)
流速 无要求
订购指南
9020000SLU LDO® II 探头，10m电缆
9020000-UPGRADE LDO® II 探头，带转换适配器
9020000-SC200 LDO® II 探头，带转换适配器，双通道SC200控制器
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.
