Chinese
Spanish
Products Description
Nexisense CDOM-406-S Online Colored Dissolved Organic Matter Sensor Product Definition
The Nexisense CDOM-406-S Online Colored Dissolved Organic Matter Sensor is a device specifically designed to measure the concentration of colored dissolved organic matter (CDOM) in water. CDOM is an important organic component in water bodies that significantly affects water quality and ecosystems. This sensor can monitor the CDOM content in real-time, providing crucial data support for water quality management.
Working Principle
The Nexisense CDOM-406-S sensor employs fluorescence measurement. When the absorption peak of colored dissolved organic matter receives monochromatic light, it absorbs the energy of that light and re-emits it in the form of monochromatic light at a specific wavelength. The sensor measures the intensity of the emitted light to calculate the concentration of colored dissolved organic matter in the water. The intensity of the emitted light is proportional to the CDOM content, allowing for high-precision measurements.
Structure Analysis
The Nexisense CDOM-406-S sensor consists of several key components:
Light Source: Utilizes a UV LED light source with high stability and long lifespan.
Detector: Captures the emitted fluorescence signal to ensure measurement accuracy.
Control Unit: Responsible for data processing and output, supporting multiple communication protocols.
Shell Material: Made of 316L stainless steel, offering excellent corrosion resistance and durability.
Measurement Method
The measurement method of the Nexisense CDOM-406-S sensor is based on fluorescence, with the following steps:
The sensor emits monochromatic light of a specific wavelength.
The colored dissolved organic matter in the water absorbs this light and re-emits it.
The sensor captures the emitted light and converts it into an electrical signal.
The control unit processes the signal to calculate the CDOM concentration and outputs it via RS-485 or 4-20mA.
Nexisense CDOM-406-S Online Colored Dissolved Organic Matter Sensor Technical Parameters
| Parameter | Description |
|---|---|
| Model | Nexisense CDOM-406-S |
| Measuring Principle | Fluorescence Method |
| Measuring Range | 0–2000 mg/L |
| Resolution | 0.001 mg/L |
| Accuracy | ±3% of reading, ±0.3℃ |
| Response Time (T90) | <30 seconds |
| Minimum Detection Limit | 0.02 mg/L |
| Calibration Method | Two-point calibration |
| Cleaning Method | None |
| Temperature Compensation | Automatic temperature compensation (Pt1000) |
| Output Method | RS-485 (Modbus RTU), 4-20 mA (optional) |
| Storage Temperature | -5–65℃ |
| Working Conditions | 0–50℃, <0.2 MPa |
| Shell Material | 316L |
| Installation | Submersible installation, 3/4NPT |
| Power Consumption | 0.2W@12V |
| Powered By | 12–24V DC |
| Protection Level | IP 68 |
Nexisense CDOM-406-S Online Colored Dissolved Organic Matter Sensor Product Advantages
High Stability: Utilizes a UV LED light source for long-term stable operation.
Fast Response: Short response time suitable for real-time monitoring.
Easy Installation: Simple design for convenient submersible installation.
Multiple Output Options: Supports RS-485 and 4-20mA output for easy integration with other devices.
Conclusion
The Nexisense CDOM-406-S Online Colored Dissolved Organic Matter Sensor is a high-performance water quality monitoring device that, with its advanced fluorescence measurement technology and exceptional stability, provides reliable data support for water quality management. Whether in water treatment, environmental monitoring, or research fields, the Nexisense CDOM-406-S is an ideal choice. By monitoring the concentration of colored dissolved organic matter in real-time, users can better understand water quality conditions and take effective management measures.
