Oxygen detector in water

Dissolved oxygen detector analyzes the oxygen content in water online fluorescence method water quality

Product advantages
Advantage 1: No need to change the diaphragm, no long-term maintenance
Advantage 2: Frequent calibration and responsive
Advantage 3: No oxygen consumption, no electrolyte

Measurement principle of fluorescence method

Dissolved oxygen meter fluorescence is based on the principle of fluorescence quenching. Blue light irradiates the fluorescent material to excite the fluorescent material and emit red light. Since oxygen molecules can remove energy (quenching effect), the time and intensity of the excited red light are inversely proportional to the concentration of oxygen molecules. By measuring the phase difference between the excited red light and the reference light and comparing it with the internal calibration value, the concentration of oxygen molecules can be calculated.

Product parameters
Power supply: DC10~30V
Power consumption: 0.2W

Communication interface: RS485 MODBUS-RTU protocol Communication standard Baud rate: 4800 default (2400 4800 9600 can be set)

Measurement principle: luminescence method
Measurement range: 0~20mg/L (saturation 0~200%)
Measurement accuracy: ±0.2%FS
Resolution: 0.01mg/L; 0.1%; 0.1
Response time: 60sec
Equipment working conditions: 0~40
Storage conditions: -10~60
Waterproof grade: IP68
Electric wire length: default 5 meters
Shell material: corrosion-resistant stainless steel plastic

Wiring instructions
The power interface is a wide voltage power supply and can input 10-30V When wiring the 485 signal line, please note that the A and B rings are not reversible, and the addresses of multiple devices on the bus cannot conflict.
Power supply:
Brown-Positive power supply (7-30VDC)
Black-Negative power
Communication:
Green-485A
Blue-485B