Digital Optical Fluorescence Dissolved Oxygen Sensor with RS485 MODBUS Output, 0-20mg/L Range, IP68 Rating
The Digital Optical Fluorescence Dissolved Oxygen Sensor utilizes advanced fluorescence technology to measure dissolved oxygen levels in water with exceptional accuracy and reliability. This RS485 MODBUS-compatible sensor operates without chemical reagents, providing an eco-friendly and cost-effective solution for continuous monitoring applications.
This sensor employs fluorescence quenching technology where blue light excites a fluorescent layer, causing it to emit red light. The dissolved oxygen concentration is determined by measuring the fluorescence lifetime, which is inversely proportional to oxygen levels. This non-consumptive method eliminates oxygen depletion during measurement and provides stable, interference-free readings.
- Digital RS485 output with MODBUS RTU protocol support
- Reagent-free operation eliminates chemical consumption and pollution
- Fluorescence measurement with external NTC10K temperature sensor for rapid response
- Robust POM + 316 stainless steel construction withstands 0-50°C environments
- Quad-core shielded cable ensures signal accuracy and stability
- Detachable cable design with aviation plug for easy installation
| Parameter | Specification |
|---|---|
| Power Supply | 9-36VDC |
| Signal Output | RS485 MODBUS RTU |
| Measurement Method | Fluorescence Method |
| Housing Material | POM + 316 Stainless Steel |
| Waterproof Rating | IP68 |
| Measurement Range | 0-20mg/L, 0-200% |
| Accuracy | ±1% F.S. |
| Pressure Range | ≤0.1Mpa |
| Temperature Compensation | NTC10K |
| Temperature Range | 0-50℃ |
| Calibration | Zero Oxygen Water Calibration, Air Calibration |
| Connection | 4-Core Cable/Separated Aviation Plug |
| Cable Length | Standard 10m (Extendable) |
| Mounting Thread | G3/4 |
Widely used for dissolved oxygen monitoring in wastewater treatment plants, water supply facilities, environmental monitoring stations, surface water systems, aquaculture operations, industrial processes, drinking water analysis, and environmental protection applications.
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