The digital BOD COD Sensor utilizes ultraviolet absorption at 254nm to measure dissolved organic pollutants in various water matrices including drinking water, surface water, and wastewater. This advanced sensor platform provides simultaneous measurement of BOD, COD, and turbidity without chemical reagents, significantly reducing operational costs. Featuring integrated self-cleaning functionality and robust construction, the sensor delivers laboratory-grade accuracy (±3% FS) with 0.1mg/L resolution for continuous water quality monitoring applications.
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Technical Features
- UV254 Absorption Technology: Dual-wavelength measurement (254nm + 365nm reference) with automatic turbidity compensation
- Multi-Parameter Capability: Simultaneous measurement of COD, BOD, turbidity and temperature
- Maintenance-Free Operation: Integrated self-cleaning brush prevents biofouling
- Rapid Response: Real-time measurements without sample digestion
- Industrial Communication: RS485 interface with Modbus RTU protocol
- Robust Construction: IP68-rated housing (POM + 316L stainless steel)
- Compact Design: 60mm diameter × 215mm length for easy installation
- Custom Configuration: Adjustable cable length (standard 10m)
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | COD351 |
| Measurement Principle | UV254 ultraviolet absorption method |
| COD Measurement Range | COD351L: 0.75-500mg/L | COD351H: 1-1500mg/L |
| COD Resolution | 0.01mg/L |
| COD Accuracy | ±3% or 0.5mg/L (whichever is greater) |
| Turbidity Range | COD351L: 0-300NTU | COD351H: 0-1000NTU |
| Operating Temperature | 0-45℃ |
| Ingress Protection | IP68 |
| Maximum Pressure | 1Bar |
| Cleaning System | Automatic rubber scraper |
| Power Supply | 12-24V DC |
| Output Signal | RS485 (Modbus RTU protocol) |
| Dimensions | ?60mm × 215mm |
| Cable Length | Standard 10m (customizable) |
| Materials | POM polymer + 316L stainless steel |
Daruifuno Product Advantages
- Precision Measurement: Laboratory-grade accuracy with field durability
- Cost Efficiency: No reagent consumption reduces operational costs
- Custom Solutions: OEM configurations and brand labeling available
- Technical Support: Comprehensive after-sales service
- Global Compliance: Meets international water quality standards
Our BOD COD sensors integrate seamlessly with SCADA systems and water quality monitoring platforms, offering reliable performance in municipal wastewater plants, industrial effluent monitoring, and environmental research applications.
If you would like to learn more about BOD COD instrumentation, please visit our BOD COD sensor category page for product information and technical support. Our online sales managers will provide personalized advice based on your specific water quality monitoring needs.
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