Fluorescence based dissolved oxygen analyzer is a detection device designed based on the principle of fluorescence quenching, mainly used to measure the dissolved oxygen content in water. Its working principle is to excite fluorescent substances with blue or green light to produce red light, and use the inverse relationship between oxygen molecule concentration and red light intensity or phase difference to achieve quantitative analysis. The fluorescence dissolved oxygen analyzer has the characteristics of maintenance free, fast response (T90 seconds), and resistance to chemical interference, and is suitable for various water environment scenarios, such as sewage treatment, aquaculture, seawater monitoring, etc.
Fluorescence based dissolved oxygen analyzer utilizes the chemical reaction between fluorescent substances and oxygen molecules to accurately determine the dissolved oxygen content in water by measuring the fluorescence intensity. This instrument has high precision and sensitivity, and can detect small changes in oxygen concentration.
Fluorescence dissolved oxygen analyzer can continuously measure dissolved oxygen content, provide real-time data stream, and help quickly detect changes, pollution events, or ecosystem reactions in water bodies. It has a fast measurement speed and can complete a measurement in just a few seconds.
Fluorescence dissolved oxygen meters usually have automatic calibration function, which can perform zero and full-scale calibration regularly to ensure the accuracy of measurement results. In addition, they also have data recording and transmission functions, which can store data in internal storage or transmit it to remote data centers for further analysis and archiving.
The fluorescence method dissolved oxygen analyzer does not require replacement of membranes and electrolytes, and has a long maintenance cycle (usually 2-3 years to replace the fluorescent cap), which saves time and reduces maintenance costs for users.
Application scenarios:
Wastewater treatment: Monitor the dissolved oxygen levels in aeration tanks and aerobic/anaerobic reaction tanks to optimize aeration efficiency.
Environmental monitoring: Continuous monitoring of dissolved oxygen in natural water bodies such as rivers, lakes, and oceans.
Industrial water treatment: dissolved oxygen control in scenarios such as circulating cooling water systems and seawater aquaculture.
Laboratory testing: rapid determination of dissolved oxygen content in water quality.