- Multi-parameter Water Analyzer
- Single-Parameter Water Aalyzer
- DO Sensor
- Trace DO Sensor
- CO₂ Sensor
- COD Sensor
- EC TDS Sensor
- Salinity EC TDS Sensor
- TSS Sensor
- Turbidity Sensor
- PH Sensor
- ORP
- Ion Selective Sensor
- Ammonia Nitrogen Sensor
- Oil in Water Sensor
- Blue-Green Algae Sensor
- Chlorophyll Sensor
- Residual Chlorine Sensor
- Marine Current Sensor
0102030405
China TSS Sensor Factory: RS485 135° Backlight Total Suspended Solids Monitor for Water Quality Suppliers
Product Parameters
| Product Name | Total Suspended Solid Sensor (TSS Sensor) |
| Measurement Method | 135° Backlight |
| Range | 0–50,000 mg/L | 0–120,000 mg/L |
| Accuracy | Less than ±10% of measured value (depending on sludge homogeneity) or 10 mg/L, whichever is greater |
| Power | 9–24 VDC (Recommended: 12 VDC) |
| Size | 50 mm × 200 mm |
| Material | 316L Stainless Steel |
| Output | RS-485, MODBUS Protocol |
Product Features
①
ISO7027-Compliant Optical Design
Utilizing a 135° backlight scattering method, the sensor adheres to the ISO7027 standard for turbidity and TSS measurement. This ensures global compatibility and reliable data accuracy across applications.
②
Anti-Interference & Sunlight Resistance
Advanced fiber-optic light path design, specialized polishing techniques, and software algorithms minimize signal drift. The sensor operates accurately even under direct sunlight, ideal for outdoor or open-air installations.
③
Automatic Self-Cleaning Mechanism
Equipped with a motorized brush, the sensor automatically removes fouling, bubbles, and debris from the optical surface, ensuring long-term stability and low maintenance.
④
Compact & Durable Construction
The 316L stainless steel body resists corrosion in aggressive environments, while its compact size (50 mm × 200 mm) simplifies integration into pipelines, tanks, or portable monitoring systems.
⑤
Temperature & Chromaticity Compensation
Built-in temperature compensation and immunity to chromaticity variations guarantee consistent readings in fluctuating water conditions.
Application
🏭 1. Industrial Wastewater Treatment
Monitor TSS levels in real time to optimize sludge dewatering, discharge compliance, and process efficiency.
🌊 2. Environmental Water Monitoring
Deploy in rivers, lakes, or coastal areas to assess sediment load, erosion, or pollution events.
💧 3. Drinking Water Systems
Ensure water clarity and safety by detecting suspended particles in treatment plants or distribution networks.
🐟 4. Aquaculture & Fisheries
Maintain optimal water quality by tracking suspended solids that affect aquatic health and equipment performance.
🔬 5. Research & Laboratories
Support high-precision studies on sediment transport, water clarity, or environmental impact assessments.
⛏️ 6. Mining & Construction
Monitor runoff water for regulatory compliance and mitigate environmental risks from suspended particulates.
Digital RS485 Water Quality Sensors Technical Data
| Parameter | Model | Range | Accuracy |
| DO Sensor | LMS-DO10B | 0–20 mg/L, 0–60 ℃ | ±0.1–0.3 mg/L |
| DO Sensor | LMS-DO10C | 0–20 mg/L, 0–60 ℃ | ±0.3 mg/L |
| Trace DO Sensor | LMS-TDO100 | 0–2000 ppb, 0–50 ℃ | ±1 ppb |
| PH Sensor | LMS-PH100 | 0–14 pH | ±0.02 pH |
| ORP Sensor | LMS-ORP100 | ±1000.0 mV | ±0.2 mV |
| EC/TDS Sensor | LMS-TDS102 | CT: 0–9999 uS/cm; 0–100 mS/cm TDS: 0–10000 ppm |
±2.5% FS |
| Salinity/EC/TDS Sensor | LMS-SAL104 | Conductivity: 0.1–500 mS/cm TDS: 0–60000 ppm Salinity: 0–500.00 ppt |
±1.5% FS |
| COD Sensor | LMS-COD100 | COD: 0.1–1500 mg/L TOC: 0.1–750 mg/L BOD: 0.1–900 mg/L Turbidity: 0.1–4000 NTU Temperature: 0–50 ℃ |
±5% equiv. KHP Temperature: ±0.5 ℃ |
| TSS Sensor | LMS-TSS100 | 0–50,000 mg/L / 0–120,000 mg/L | ±10% FS or 10 mg/L |
| Turbidity Sensor | LMS-TUR10L | 0–100 NTU | ±10% FS or 0.3 NTU |
| Turbidity Sensor | LMS-TUR10H | 0–3000 NTU | ±10% FS or 0.3 NTU |
| CO₂ Sensor | LMS-CO2100 | 2000 PPM / 10000 PPM / 50000 PPM | ±5% FS |
| Ammonia Nitrogen Sensor | LMS-NH4100 | 0–1000 mg/L | ±5% FS |
| Ion Selective Sensor | LMS-ION100 | 0–1000 mg/L | ±5% FS |
| Oil in Water Sensor | LMS-OIL100 | 0–50 mg/L | 0–5 mg/L | ±3% FS |
| Chlorophyll Sensor | LMS-CHL100 | 0–500 ug/L | ±3% FS |
| Blue-Green Algae Sensor | LMS-BGA100 | 0–2,000,000 cells/ml | ±3% FS |
| Residual Chlorine Sensor | LMS-HCLO100 | 0–20.00 ppm | ±5% FS |
| Marine Current Sensor | LMS-Current100 | Temperature: -3 ℃ – 45 ℃ Velocity: 0–500 cm/s Direction: 0–359.9° |
±0.05 ℃ ±1 cm/s or ±2% ±2° |
Frequently Asked Questions (FAQ)
Q What is a TSS sensor and how does it work?
A Total Suspended Solids (TSS) sensor measures the concentration of solid particles suspended in water. The LMS-TSS100 uses a 135° backlight scattering method compliant with ISO7027, where an infrared light source emits a beam into the water and a detector measures the scattered light at 135°, which correlates directly to the suspended solid concentration.
Q What measurement range does the TSS sensor support?
The sensor supports two measurement ranges: 0–50,000 mg/L for standard applications such as wastewater treatment and environmental monitoring, and 0–120,000 mg/L for high-concentration environments such as sludge management or industrial effluent monitoring.
Q How does the self-cleaning mechanism work?
The sensor is equipped with a motorized brush that automatically sweeps across the optical window at set intervals. This removes biofouling, algae, bubbles, and debris, ensuring the optical surface remains clean and measurement accuracy is maintained over long-term deployments with minimal manual maintenance.
Q Can the TSS sensor be used outdoors or in direct sunlight?
Yes. The sensor features an advanced fiber-optic light path design combined with specialized polishing techniques and software algorithms that effectively filter out ambient and solar light interference. It can operate reliably in outdoor installations, open channels, and surface water environments exposed to direct sunlight.
Q What communication protocol does the sensor use?
The TSS sensor outputs data via RS-485 using the MODBUS RTU protocol, making it easy to integrate with PLCs, data loggers, SCADA systems, and other industrial control platforms. It operates on a wide power supply range of 9–24 VDC (12 VDC recommended).
Q Is the TSS sensor compatible with other water quality sensors in the LMS series?
Yes. The LMS-TSS100 is part of a comprehensive digital RS-485 water quality sensor series that includes DO, pH, ORP, EC/TDS, COD, turbidity, ammonia nitrogen, chlorophyll, and many more parameters. All sensors share a standardized MODBUS protocol, allowing multi-parameter monitoring through a single communication bus.