Online BOD sensor
Key Specifications：
✅Range 0-500mg/L(Customisable)
✅RS485,MODBUS protocol
✅UV254 Optical principle
✅Easy on-site use
✅Self-cleaning system
The BOD sensor is an instrument used to rapidly determine the biochemical oxygen demand in water bodies to assess the degree of water pollution. Its principle is to measure the change in dissolved oxygen during the biodegradation process through the current signal generated by the electrode in the sensor to evaluate the biochemical oxygen demand of the water body. The online BOD sensor has good stability and a long service life, and is widely used in the field of environmental monitoring.
Product Features：
✅No reagents, no pollution, more economical and environmentally friendly.
✅ Automatically compensate for turbidity interference.
✅With automatic cleaning brush to prevent biological attachment and longer maintenance cycle.
✅ Built-in calibration parameters for easy on-site use and secondary calibration.
Technical parameters:
| Name | UV254 BOD Sensor(Low range) | UV254 BOD Sensor(High range) |
| Model | YCH405-L | YCH405-H |
| Principle | Ultraviolet absorption method | Ultraviolet absorption method |
| Range | 0-300mg/L | 0-1500mg/L |
| Accuracy | ±5%FS | ±5%FS |
| Resolution | 0.01mg/L | 0.01mg/L |
| Linearity | R2 > 0.99 | R2 > 0.99 |
| Protection Level | IP68 | IP68 |
| Output Signal | Support RS-485/Modbus protocol | Support RS-485/Modbus protocol |
| Operating Temp. | 0-50℃ | 0-50℃ |
| Assembly | Input Type | Input Type |
| Power Supply | DC 9~12V, current < 50mA | DC 9~12V, current < 50mA |
| Cable Length | 5 meters (default),Customizable | 5 meters (default),Customizable |
| Housing Material | SS316/Titanium | SS316/Titanium |
| Mounting Thread | G 3/4 | G 3/4 |
Product Advantages
