Overview
The dissolved oxygen sensor probe is a vital tool for measuring oxygen levels in aqueous environments. It is widely used in industries such as wastewater treatment, aquaculture, and environmental monitoring to ensure optimal water quality. The probe operates based on the principle of electrochemical sensing, where oxygen diffuses through a semi-permeable membrane and reacts at the electrode surface, generating a measurable signal. This technology provides real-time data critical for process control and regulatory compliance.
Structure and Working Principle
A dissolved oxygen sensor probe typically consists of a semi-permeable membrane, electrodes (often gold or platinum), and an electrolyte solution. The membrane allows oxygen molecules to diffuse into the probe while blocking other substances. When oxygen reaches the electrodes, it undergoes a redox reaction, producing an electrical current proportional to the oxygen concentration. This current is converted into a readable output, such as mg/L or % saturation. Advanced models may include temperature sensors for compensation, ensuring accuracy across varying conditions.
Key Features
Modern dissolved oxygen sensor probes offer high accuracy, often within ±0.1 mg/L, and fast response times, making them suitable for dynamic environments. The durable Teflon membrane resists fouling and extends the probe's lifespan. Temperature compensation is another critical feature, as oxygen solubility varies with temperature. Some probes also include automatic calibration functions, reducing maintenance efforts. These features make the probe reliable for continuous monitoring in harsh industrial settings.
Application Areas
Dissolved oxygen sensor probes are indispensable in wastewater treatment plants, where they monitor aeration efficiency and ensure compliance with environmental regulations. In aquaculture, they help maintain optimal oxygen levels for fish health. Environmental monitoring agencies use these probes to assess water quality in rivers, lakes, and oceans. Additionally, they are employed in pharmaceutical and food production to guarantee product quality and safety.
Maintenance and Precautions
Regular maintenance is essential for the longevity and accuracy of dissolved oxygen sensor probes. The membrane and electrolyte should be replaced periodically, typically every 1–6 months, depending on usage. Calibration should be performed before each use or as recommended by the manufacturer. Avoid exposing the probe to extreme pH levels or harsh chemicals, which can damage the membrane. Proper storage in a moist environment prevents the membrane from drying out.
B2B Procurement Guide
When procuring dissolved oxygen sensor probes, consider the specific requirements of your application. High-accuracy models are necessary for critical processes, while rugged designs are suited for harsh environments. Compatibility with existing monitoring systems is another key factor. Evaluate the probe's output signal (e.g., analog or digital) and communication protocols. For large-scale deployments, bulk purchasing may offer cost savings, but ensure supplier reliability and after-sales support.
Related Manufacturers
- 主营：分析仪、监测仪、测量仪、氧探头、溶氧仪、在线仪、测定仪、传感器、排水管、流量计、电导率、监控仪、电磁流、电极orp、变送器、控制器、测试仪、校验仪、浊度仪、探测仪、检测器、检测仪、自来水、压力表、液位计
- 主营：温度传感器、热电偶、热电阻、隔膜压力表、双金属温度计、温度变送器、不锈钢压力表、压力变送器、差压变送器、压力控制器、磁翻板液位计、雷达液位计、电磁流量计、涡街流量计、涡轮流量计、金属管浮子流量计、旋进旋涡流量计、孔板流量计
- 主营：多参数水质分析仪、无人船、流速流量仪、溶氧仪、水站、浮标
- 主营：染色液、乙氨酸、噻唑兰、转膜液、检测溶液、喷雾剂、封片剂、清除剂、试剂盒、研试剂、dpph试剂、page凝胶、te缓冲液、pbs缓冲液、核酸染料、中性树胶、胰蛋白酶、纤维素酶、染色试剂、mes缓冲液、faa固定液、甲苯胺蓝、生化试剂、实验试剂、ctab抽提液
- 主营：abb钠表、pc151ht-0、分析仪、溶氧仪配件51518598、排污阀、电磁阀、止回阀、继电器、lv32-s201、电解液、钠电极、传感器、隔离栅、德国e+h、调节阀、流量计、变送器、调压阀、电导率、orp电极、测量板、水电极、蠕动泵、abb电极、截止阀、切换阀
- 主营：酸碱浓度计、浊度传感器、常规五参数水质分析仪、水中臭氧检测仪、在线荧光法溶解氧、荧光法溶解氧传感器、悬浮物计、污泥浓度计、污泥浓度传感器、感应式电导率、感应式酸碱盐浓度计、在线盐度计、多参数水质分析仪、在线余氯计、数字水质传感器、叶绿素传感器、水中油、蓝绿藻传感器、气象、土壤监测、PH计
- 主营：在线水质分析仪、气象传感器、超声波流量计、高温溶氧、电磁流量计、酸碱浓度计
- 主营：采样工具、水质分析仪、测试系统、DO荧光膜、分析系统、同位素分析仪
- 主营：分析仪、测试笔、桌面秤、溶解氧、移液器、混匀仪、分体秤、水分仪、测试包、控制器、甩板机、落地秤、测试盒、测试仪、电子秤、口袋秤、传感器、密度计、防水秤、离心机、包裹秤、酸度计、盐度计、提取仪、精密天平、硝酸离子
- 主营：检测仪、传感器、流量计、氧化锆分析仪、微量氧分析仪、溶解氧测定仪、氧化锆氧分析仪、热电偶、热电阻、压力表、水流开关、继电器开关、无纸记录仪、双色玻璃板、超声波液位计、磁翻板液位计、干簧管控制器、双金属温度计、高温高压密闭罐、防爆温度变送器、数显压力控制器、磁致伸缩液位计
- 主营：在线ph电极、哈希水质分析仪、维萨拉温湿度变送器、溶氧电极、露点仪
- 主营：SWAN电极、ROSEMOUNT、ABB阀门定位器、SWAN溶解氧电极、ABB电极、梅特勒PH电极、WADECO微波料位、WESTLOCK、GESTRA、GEMU阀、CALEX温度开关、HACH电极、HAUBER、Mettler电极、Meister开关、JUMO电导率仪、SWAN试剂