DO concentration 0-50mg/L Dissolved Oxygen Controller For waste water Monitoring

Dissolved Oxygen Molecular oxygen in the air dissolves in water to become dissolved oxygen. When the water body is polluted by reducing substances, the dissolved oxygen decreases, and when algae multiply, the dissolved oxygen is supersaturated. Therefore, the change of dissolved oxygen in the water body reflects the degree of water pollution to a certain extent.

The content of dissolved oxygen in water is related to atmospheric pressure, water temperature and salt content.
A decrease in atmospheric pressure, an increase in water temperature, and an increase in salt content will lead to a decrease in dissolved oxygen content. When the dissolved oxygen in the water is lower than 3-4mg/L, many fish have difficulty breathing; when the dissolved oxygen is below 2mg/L, the water will stink. It is generally stipulated that the dissolved oxygen in the water body is above 4mg/L.
When the dissolved oxygen in the water body is less than its solubility, the oxygen in the atmosphere dissolves into the water body. Aeration is often performed at the water interface, the water body discharges carbon dioxide into the atmosphere, and the dissolved oxygen in the atmosphere enters the water body. In the event of degradation of organic matter, the consumption of oxygen is drastically reduced. In a word, the process of deoxygenation (reduction of dissolved oxygen) and reoxygenation (increase of dissolved oxygen) is constantly going on in the water body.

Specification:

Please click the user manual of DO controller here:

DUC2-DO User Manual.pdf

Features＆ Advantages
● Compatible with DRFN digital dissolved oxygen sensors including fluorescence and polarography;
● Automatic compensation for air pressure display;
● The working status of the sensor can be queried, including reading the serial number;
● OTA download technology as a smart configuration option for the instrument;
● Time and historical data recording function;
● 3.2-inch large LCD screen;
● User-friendly Chinese and English language interface;
● Password can be set to prevent misoperation;
● 2 SPST multi-function and settable relays;
● Two 0/4~20mA active current loop outputs;
● RS485 interface, Modbus RTU communication protocol;
● IP66 waterproof level, sealed enclosure can isolate pollution and corrosive gas;
● Support a variety of installation methods.

Aplication:
◇ Sewage
◇ Surface water monitoring
◇ Aquaculture water bodies
◇ Urban sewage treatment
◇ Industrial wastewater treatment
◇ Aquarium


FAQ
1. Which sensors can be connected to your dissolved oxygen controller?
A: The dissolved oxygen meter can be compatible with DRFN digital dissolved oxygen sensors including fluorescence and polarography.

2. How does your DO controller collect sensor data?
A: The connected sensor uploads the detected data in a special encrypted communication method to ensure that the DUC controller can collect high-precision data more stably

3. What are the applications of dissolved oxygen analyzers?
A: Sewage/Surface water monitoring/Aquaculture water bodies/Urban sewage treatment/Industrial wastewater treatment /Aquariums

Suzhou Delfino Environmental Technology Co., Ltd. is a professional manufacturer of water analysis instruments and sensors, integrating development and production together. Our main products include online, portable water quality analysis instruments. Since its establishment, we have focused on the development and production of water quality analysis instruments.

The monitoring parameters of water quality analyzer instruments mainly include: pH, ORP, dissolved oxygen, conductivity/TDS/salinity, turbidity, SS, Chlorophyll, Blue-green algae, COD, NH4-N, NO3, free chlorine, peracetic acid and so on.

As the rapid growth of the global economy leads to increased consumption and urbanization, solid waste generation has increased significantly, directly affecting the water and wastewater treatment industry. Daruifuno aims to provide solutions to various industries and fields and create a cleaner and healthier drinking water environment for the earth.

Our products mianly application for follows industry：Municipal sewage water treatment plant, industrial wastewater treatment plant, Chemical, Petroleum, Papermaking, Food and drinking, Medicine, Electroplating, PCB plant, fish farm,Lake/river/ocean/groundwater/surface and so on.

Our company was established in 2015, but our predecessor has been committed to the water quality testing industry for more than 10 years. At present, we have our own R&D center with many senior engineers with more than 10 years of experience in the research and development of water quality analyzers and water quality sensors, and are equipped with strict front-line production workers, professional quality inspection personnel and testing equipment to check every process.

As a high-tech enterprise in China, our production is strictly in accordance with ISO9001 from raw material sources to finished equipment. After years of efforts, the company has obtained more than 20 patent certificates, high-tech enterprise certificates, CE, SGS, etc. He has accumulated rich practical experience in the field of water quality testing and has unique insights in the field of water quality testing.

Our company takes "reasonable prices, efficient production time, and good after-sales service" as its purpose and adheres to the business philosophy of "based on quality and creating value for customers". At present, the company is actively exploring the international market and actively promoting its own brands and products. It has been exported to Asia, Southeast Asia, Europe, Africa, and South America, with customers in more than 50 countries and regions around the world. And hope to develop together with customers for mutual benefit with high-quality products and sincere services.