| Model | L551-B (L551-C) | |
| Measuring principle | Dual wavelength ultraviolet absorption method | |
| Scale range | COD | Turbidity |
| 0～1500mg/L equiv. KHP | 0～1000NTU | |
| 0～1000: ±10%， 1000~1500:±5% | ||
| COD Precision | 0.1mg/L | |
| COD Resolution | ±5%F.S. | |
| Turbidity accuracy | 0.1NTU | |
| Turbidity resolution | Two-point calibration | |
| Calibration method | RS-485 ( Modbus/RTU ) | |
| Output method | 12～24VDC | |
| Power supply | 0.4W@12V | |
| Power consumption | 0～50℃、<0.2MPa | |
| Working conditions | -5～65℃ | |
| Storage temperature | IP68 | |
| Protection level | Immersion installation | |
| Installation method | 5 meters, other lengths can be customized | |
| Cable length | 316L stainless steel | |
| Sensor housing material | ||
L551-B (L551-C) Online COD Sensor
- No reagents, no pollution, more economical and environmental protection
- Small size, easy installation, and continuous water quality monitoring
- Measure COD, turbidity and temperature parameters
- Automatic compensation for turbidity interference
- With a cleaning brush to prevent bio-adhesion
- Small drift, fast response, more accurate measurement
- Excellent stability even for long-term monitoring
- Maintenance-free, long service life and low cost of use
- Digital sensor, RS-485 interface, Modbus/RTU protocol
- Low power design, anti-interference design
L551-B (L551-C) Online COD Sensor
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