Suspended solids monitor DSS-800

Product Overview
Suspended solids/sludge concentration sensor is based on the method of combination of infrared absorption scattered light. Infrared light which the photo source sends out is scattered by suspended particles in the sample and finally converted to electrical signals by photoelectric detector, obtaining the suspended solids/sludge concentration of the sample after treatment by analog and digital signals. The product is widely used in the on-line monitoring of suspended matter/sludge concentration in various processes of sewage treatment plants. Online monitoring of industrial process water and suspended solids/sludge concentration of wastewater treatment process.

Key Features

• Advanced Dual-Beam Technology: Adopts dual-beam infrared scattered light photometer detection, delivering excellent repeatability and long-term stability for reliable measurements.
• ISO7027 Compliance: Follows the ISO7027 standard (infrared light scattering technique), effectively eliminating interference from sample color and ensuring accurate results.
• Built-in Self-Diagnosis: Integrated self-diagnosis function continuously verifies data accuracy, minimizing measurement errors and enhancing operational reliability.
• Optional Automatic Cleaning: Available with an integrated cleaning brush for self-cleaning, reducing manual maintenance workload and maintaining sensor performance in harsh environments.
• Digital Advantages: Equipped with digital sensor technology, offering strong anti-interference capability and supporting long-distance data transmission.
• Seamless Integration: Standard digital signal output enables direct integration and networking with other equipment, no additional controller required.
• Plug-and-Play Installation: Designed for quick and hassle-free deployment, reducing on-site installation time and labor costs.

Applications

• Sewage Treatment Plants: Monitoring sludge concentration in critical process stages (e.g., aeration tanks, sedimentation tanks, sludge thickening units).
• 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, and printing industries).

Specifications
Specifications
Details
Measurement Range
0.01-20000 mg/L, 0.01-45000 mg/L, 0.01-120000 mg/L
Measurement Accuracy
Less than ± 5% of the measured value (depending on sludge homogeneity)
Repeatability
±2%
Resolution Ratio
0.01~1 mg/L, it depends on different ranges
Pressure Range
≤0.4Mpa
Flow velocity
≤2.5m/s、8.2ft/s
Material
Main Body: SUS316L (Ordinary version), Titanium alloy (Seawater version)
Cable: PUR
Power Supply
9~36VDC
Communication Protocol
MODBUS RS485
Operating Temperature
0~45℃ (not freeze)
Storage Temperature
-15~50℃
Weight
1.65 KG
Level of Protection
IP68/NEMA6P
Cable Length
Standard: 10 m, the maximum can be extended 100m

Technical Characteristics / Specifications

• Dual-beam infrared scattered light photometer detection
• ISO7027 standard compliance
• Self-diagnosis function
• Optional integrated cleaning brush
• Digital sensor technology
• MODBUS RS485 communication
• IP68/NEMA6P protection
• Measurement range up to 120,000 mg/L
• Operating temperature 0~45℃
• Power supply 9~36VDC