Suspended solids monitor DSS-600

Product Overview
The suspended solids/sludge concentration sensor is based on infrared scattered light technology. Infrared light emitted by the light source scatters when passing through the sample under test, and the intensity of the scattered light is proportional to the concentration of the suspended solids. The sensor receives the scattered light and obtains the suspended solids concentration value by analyzing the intensity of this group of scattered light. The product is widely used in the online monitoring of sludge concentration in various technological processes of sewage treatment plants and the online monitoring of suspended solids/sludge concentration in various industrial processes such as water and wastewater treatment processes, as well as online monitoring of sewage plant outlets, municipal pipe network water quality, and pollution source discharge outlets.

Measurement Principle
This Suspended Solids Sensor operates based on the combined technology of infrared absorption and scattered light detection. Infrared light emitted by the sensor's light source is scattered by suspended particles present in the sample. This scattered light is then captured by a photoelectric detector, which converts the optical signal into an electrical signal. After undergoing analog-to-digital signal processing, the electrical signal is analyzed to accurately determine the suspended solids concentration in the sample.

Key Features

• Advanced Detection Technology: Adopts a hybrid method of infrared absorption and scattered light, ensuring high measurement accuracy and reliability for various suspended solid types.
• Optional Automatic Cleaning: Available with an integrated cleaning brush for self-cleaning functionality, minimizing manual maintenance and maintaining sensor performance in harsh environments.
• Digital Performance: Equipped with digital sensor technology, offering strong anti-interference capability and support for long-distance data transmission.
• Plug-and-Play Integration: Standard digital signal output enables direct integration and networking with other equipment, eliminating the need for an additional controller.
• Easy Installation: Plug-and-play design allows for quick and hassle-free on-site installation, reducing deployment time and labor costs.
• Robust Protection Mechanisms: Features reverse polarity protection for the power supply and protection against incorrect wiring (RS485 A/B terminals connected to power), enhancing operational safety.
• Data Management Functions: Integrated time display, data storage, and historical data review capabilities for convenient tracking and analysis of measurement results.
• Flexible Connectivity: Optional wireless data transmission module available for remote monitoring and flexible system configuration.

Applications

• Sewage Treatment Plants: Monitoring sludge concentration in key process stages (e.g., aeration tanks, sedimentation tanks, sludge return lines).
• Industrial Water Treatment: Online monitoring of suspended solids (SS) and sludge concentration in industrial process water and wastewater treatment systems (e.g., chemical, textile, food & beverage, pharmaceutical industries).
• Environmental & Municipal Monitoring: Real-time monitoring of water quality at sewage plant discharge outlets, municipal pipe networks, and pollution source emission points to ensure compliance with environmental regulations.

Specifications
Specifications Details
Measurement Range 0.01~1000mg/L, 100-50000mg/L
Measurement Accuracy Less than ±10% of the measured value (depending on sludge homogeneity), or 10mg/L, maximax criterion
Repeatability ±3%
Resolution Ratio 0.01mg/L-1mg/L, it depends on different ranges
Pressure Range ≤0.4Mpa
Sensor Main Materials Main Body: SUS316L; Cable: PUR
Power Supply 9~36VDC
Communication Protocol MODBUS RS485
Storage Temperature -15~50℃
Operating Temperature 0~45℃ (not freeze)
Weight 0.8KG
Level of Protection IP68/NEMA6P
Cable length Standard: 10 m, the maximum can be extended 100m

Characteristics / Technical Specifications

• Model: DSS-600
• Measurement Principle: Infrared absorption and scattered light detection
• Measurement Range: 0.01~1000mg/L, 100-50000mg/L
• Accuracy: Less than ±10% of measured value or 10mg/L
• Repeatability: ±3%
• Resolution: 0.01mg/L-1mg/L (depends on range)
• Pressure Range: ≤0.4Mpa
• Main Materials: SUS316L (body), PUR (cable)
• Power Supply: 9~36VDC
• Communication: MODBUS RS485
• Storage Temperature: -15~50℃
• Operating Temperature: 0~45℃ (not freeze)
• Weight: 0.8KG
• Protection Level: IP68/NEMA6P
• Cable Length: Standard 10m, max 100m