UV RS485 COD Sensor For The Measurement Of Chemical Oxygen Demand
Measuring Principle Of The COD Sensor
Many organic substances dissolved in water absorb ultraviolet light. Therefore, the total amount of organic pollutants in the water can be measured by measuring the degree of absorption of 254nm wavelength ultraviolet light by these organic substances.
The CODuv350 COD sensor uses the UV254 nano-ultraviolet absorption method for measurement, and the measurement process does not require consumables.
The COD probe uses two light sources, 254nm and 550nm, and uses a 550nm compensation light source to effectively eliminate the effects of turbidity and chromaticity, thereby achieving more stable and reliable measurement values.
Advantages Of The COD Sensor
- Imported ultraviolet UV LED cold light source, with small drift and long life.
- The sample does not need to be digested, the analysis speed is fast, and there is no need to add any reagents.
- Drop-in installation, no special sampling equipment is required. The measurement process responds quickly in real-time without waiting.
- The COD sensor is equipped with an automatic cleaning brush and has a self-cleaning function, which can effectively prevent pollution.
Applications Of The COD Sensor
Sewage treatment plant outlet, natural waters, industrial process control, aquaculture, drinking water.
Technical Data Sheet
| Product Name | COD sensor |
| Product Model | CODuv350 |
| Measuring Principle | UV254 nano-ultraviolet absorption |
| Measuring Range | 0.15~300.00mg/L 0.5~1000.0mg/L |
| Resolution | 0.01mg/L 0.1mg/L |
| Accuracy | ±2% or ±2.5mg/L, take the larger one |
| Repeatability | ±1% |
| Response Time | T90 max. 10seconds |
| Operating Temperature | 0~45℃ |
| Storage Temperature | -10~50℃ |
| Dimensions | Outer diameter 142*157mm, length 280mm |
| Protection Grade | IP68 |
| Water Depth | <10m |
| Flow Rate | < 3 m/s |
| Cleaning Method | brush |
| Power | 12V 15mA (normal), 200mA (maximum, when the brush is rotating) |
| Output | RS485, Modbus RTU protocol |
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UV RS485 COD Sensor For Chemical Oxygen Demand IP68 Images
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