Introduction
Many organic compounds dissolved in water absorb UV light. Therefore, by measuring the degree of absorption of 254nm wavelength ultraviolet light by these organic substances, the content of dissolved organic pollutants in water can be accurately measured.
KWS-150 online COD sensor uses two light sources, one ultraviolet light is used to measure the COD content in water, and one reference light is used to measure water turbidity. In addition, a specific algorithm is used to compensate for the attenuation of the light path and eliminate granularity to a certain extent. interference from suspended impurities, thereby achieving more stable and reliable measurement.
Feature
- No reagents required, no pollution, economical and environmentally friendly
- Small size, easier to install, and capable of continuous online water quality monitoring
- Can measure parameters such as COD, turbidity and temperature
- Automatic compensation for turbidity interference
- Comes with cleaning brush to prevent biological adhesion
- Small drift, fast response, and more accurate measurement
- Excellent stability even for long-term monitoring
- Maintenance-free, long service life, low cost of use
- Digital sensor, RS-485 interface, Modbus/RTU protocol
- Low power consumption and anti-interference design
Dimension
Technical Specifications
| Model | KWS-150 | |
| Measurement Principle | Dual-wavelength UV absorption method | |
| Measuring Range
|
COD | Turbidity |
| 0～200mg/L equiv. KHP | 0～100NTU | |
| 0～500mg/L equiv. KHP | 0～200NTU | |
| 0～1500mg/L equiv. KHP | 0～1000NTU | |
| COD Accuracy | ±5% | |
| Response Time (T90) | ＜10s | |
| Lowest Detection Limit
|
0.2mg/L（0-200mg/L） | |
| 0.4mg/L（0-500mg/L） | ||
| COD Resolution | 0.1mg/L | |
| Turbidity Accuracy | ±5% | |
| Turbidity Resolution | 0.1NTU | |
| Calibration Method | two-point calibration | |
| Output Method | RS-485（Modbus/RTU） | |
| Power Supply | 12～24VDC | |
| Power Consumption
|
0.4W@12V（working） | |
| 2W@12V（cleaning） | ||
| Storage Temperature | -5～65℃ | |
| Working Conditions | 0～50℃，＜0.2MPa | |
| Protection Level | IP68 | |
| Cable Length | 5 m, customizable | |
| Casing Material | 316L stainless steel | |
