UV Type Chemical Oxygen Demand Sensor RS485 , online Bod Cod Meter
UV Type COD BOD TOD Water Probe Online Chemical Oxygen Demand Analyzer sewage treatment plant
Description
COD sensor is a new generation of environmental protection COD/ BOD sensor, no reagent, no pollution, more economic and environmental protection. Small size, easy to install, and can monitor water quality online. Turbidity interference automatic compensation, with automatic cleaning device, even long-term monitoring also has good stability.
Measuring principle
Many organic substances disclosed in water will absorb UV light. Therefore, the total amount of organic pollutants in water can be measured by measuring the absorption of these organic substances by UV light with a wavelength of 254 nm, which can automatically compensate for optical path attenuation and turbidity effects, resulting in more stable and reliable measurement values.
Technical parameter
| Item | Parameters | Price | |
| Model | Measuring range | Application field | USD |
|
DS501(6 mm gap) |
COD 0.75 to 500 mg / L BOD 0~200 mg / L
|
Tap water, Sewage treatment plant outlet natural waters |
1200.00 |
|
DS502(1mm gap) |
COD 2.5 to 1000 mg / L BOD 0~500 mg / L
|
Industrial process control,Raw water |
1290.00 |
|
DS503(1mm gap) |
COD 2.5 to 3000 mg / L BOD 0~1000 mg / L
|
Industrial process control, Wastewater treatment inlet |
1680.00 |
| Power supply | 12VDC +/-5% | ||
| Output signal | RS485 / Modbus | ||
| Accuracy | 0.01mg/L COD | ||
| Calibration | 1 or 2 point calibration | ||
| Self-cleaning brush | COD range over 2000, no self-cleaning brush | ||
Common problem
| Error | Possible causes | Solutions |
| Unstable reading | Connection failure | Reconnect the controller and cables |
| Cable failure | Please contact us | |
| Measured values are too high, too low, or the values remain unstable | The sensor measurement window is blocked | Cleaning surface |
Quality assurance
The online COD warranty period is 1 year from the delivery date.
If the product is found to be faulty during the warranty period, our company promises to repair or replace the faulty product free of charge, or return the order for the faulty product to the user after deducting the first shipping fee. Repaired or replaced products will only enjoy the remaining warranty period.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.