Measurement Principle:

The online dissolved oxygen analyzer uses the fluorescence method to measure dissolved oxygen. The sensor tip is coated with a fluorescent substance. When the blue light emitted by the sensor irradiates the fluorescent substance, it becomes excited and emits red light. Since oxygen molecules can carry away energy (quenching effect), the duration and intensity of the excited red light are inversely proportional to the concentration of oxygen molecules. The concentration of dissolved oxygen in water can be calculated through this process.

Features:

lThe sensor uses a new type of oxygen-sensitive membrane with built-in NTC temperature compensation, ensuring good repeatability and stability of measurement results;

lNo oxygen consumption during measurement, no flow rate/agitation requirements;

lBreakthrough fluorescence technology, no membrane or electrolyte, virtually maintenance-free;

lBuilt-in self-diagnostic function to ensure data accuracy;

lFactory calibrated, no need for calibration for one year, field calibration possible;

lDigital sensor, strong anti-interference capability, long transmission distance;

lStandard digital signal output, enabling integration and networking with other devices without a transmitter;

lEasy and quick on-site sensor installation, plug-and-play;

lReverse polarity protection for sensor power supply;

lProtection against incorrect connection of sensor RS485 A/B terminals to power supply.

Typical Applications:

lOnline DO monitoring in various processes of wastewater treatment plants, such as regulation tanks, biochemical tanks, and effluent;

lOnline DO monitoring in tap water plants, surface water, various industrial process waters, aquaculture, and other industries.

SensorTechnical Parameters:

DS-115TControllerTechnicalParameters: