Xi'an Kacise Optronics Co.,Ltd.
Kacise, understanding your automation needs.
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Organic substances that dissolve in water often exhibit the property of absorbing ultraviolet (UV) light. This characteristic allows for the precise measurement of the concentration of these dissolved organic pollutants by assessing their absorption of UV light at a wavelength of 254 nm. The KWS-150 online COD sensor features two light sources; one is used to determine the COD levels in water through ultraviolet light, while the other serves as a reference to measure water turbidity. A tailored algorithm is also utilized to account for light path attenuation and reduce the impact of suspended particulate matter, enhancing the stability and reliability of the measurements.
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
| 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 | |
Customer Support
Technical Assistance: Our dedicated support team is available to assist with installation, configuration, and troubleshooting. You can reach us via phone, email, or live chat.
Documentation: Comprehensive user manuals, installation guides, and technical specifications are available on our website for easy reference.
Warranty and Returns
Warranty Coverage: Our sensors come with a standard one-year warranty that covers defects in materials and workmanship. Extended warranty options are also available.
Return Policy: If you’re not satisfied with your purchase, you can return the sensor within 30 days for a full refund, provided it’s in original condition.