MLSS-110 Self-Cleaning Sludge Concentration Sensor
Digital self-cleaning MLSS (Mixed Liquor Suspended Solids) sensor with infrared scattered light technology. IP68-rated with RS485 Modbus output for real-time sludge concentration monitoring in wastewater treatment and process control.
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Product Highlights
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The MLSS-110 is a digital self-cleaning sludge concentration sensor purpose-built for wastewater treatment process control. Using infrared 135° scattered light technology, it continuously monitors Mixed Liquor Suspended Solids (MLSS) concentration across a 0–50,000 mg/L range — providing the real-time data operators need to optimize aeration, sludge treatment, and biological processes.
Key Features
- Infrared Scattered Light Technology: 135° detection angle optimized for sludge measurement
- Wide Range: 0–50,000 mg/L covers the full spectrum of wastewater treatment applications
- Self-Cleaning Wiper: Optional automatic wiper prevents sludge buildup on optical surfaces
- SUS316L Stainless Steel: Built to withstand aggressive wastewater environments
- Digital RS485 Output: Modbus RTU protocol for direct integration with plant control systems
- IP68 Waterproof: Fully submersible with NEMA6P protection
- Built-in Temperature Sensor: Integrated temperature monitoring
- Factory Calibrated: Ready to deploy with slope and multi-point field calibration
Applications
- Aeration basin MLSS concentration monitoring
- Sludge thickening and dewatering process control
- Return activated sludge (RAS) monitoring
- Waste activated sludge (WAS) control
- Secondary clarifier feed monitoring
- Sludge blanket level detection
- Industrial wastewater treatment optimization
Why MLSS Monitoring Matters
MLSS concentration is the single most critical parameter in biological wastewater treatment. Accurate, real-time MLSS monitoring enables:
- Optimized Aeration: Adjust air supply based on actual biomass concentration to save energy
- Process Stability: Maintain optimal MLSS levels for consistent treatment performance
- Sludge Management: Control sludge wasting and return rates for efficient solids handling
- Cost Reduction: Reduce energy consumption and chemical usage through precise process control
Installation and Maintenance
The MLSS-110 mounts with a railing-mount bracket using DN32 pipe. Position the sensor fully submerged in the aeration basin or process tank, away from areas with excessive air bubbles or direct turbulence from diffusers.
Self-Cleaning: The optional automatic wiper is highly recommended for MLSS applications where sludge can quickly foul optical surfaces. Wiper interval is adjustable via Modbus registers.
Calibration: Factory-calibrated for immediate deployment. Single-point slope correction and multi-point calibration with standard solutions are available for site-specific optimization.
Connectivity and Integration
The MLSS-110 communicates via RS485 Modbus RTU, compatible with:
- Agrinovo IoT controllers (Omni Genesis, Omni Exodus)
- Wastewater plant SCADA and PLC systems
- Process automation controllers
- Data historians and reporting platforms
Why Choose MLSS-110
- Purpose-built for sludge: Optimized optics for accurate MLSS measurement
- Low maintenance: Self-cleaning wiper keeps sensors operating in fouling-prone environments
- Industrial grade: SUS316L body with IP68 protection for wastewater conditions
- Real-time process data: Continuous monitoring replaces grab samples
- Easy integration: Standard Modbus RS485 connects to any plant control system
- Flexible deployment: Cable lengths up to 100m for any tank configuration
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