online dissolved oxygen detector

measuring principle:

Online dissolved oxygen detector using fluorescence method to measure dissolved oxygen, the sensor top covered a layer of fluorescent material, when the sensor blue light to the fluorescent material, fluorescent material by red light, because oxygen molecules can take away energy (quenching effect), so the excitation of red light time and intensity and oxygen concentration inversely proportional, by calculating the concentration of dissolved oxygen in the water.

functional characteristics:

The sensor adopts a new oxygen sensitive membrane, with NTC temperature repair function, the measurement results have good repeatability and stability;

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

Breakthrough fluorescence technology, no membrane and electrolyte, the basic need for maintenance;

Internal self-diagnosis function, to ensure the accuracy of the data;

Factory calibration, one year without calibration, can be on-site calibration;

Digital sensor, strong anti-interference ability, the transmission distance is long;

Standard digital signal output, which can be integrated and networked with other devices without a transmitter;

Sensor site installation is convenient and fast, to achieve plug and play;

Sensor power supply positive and negative electrode reverse connection protection;

The sensor RS485 A / B end is misconnected to the power supply protection.

Typical applications:

DO online monitoring of the regulating tank, biochemical tank and effluent process of sewage treatment plant;

DO online monitoring of water plant, surface water, various industrial production processes, aquaculture and other industries.

Controller parameters