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YEX-S1-TSS Online Suspended Solids Sensor

High-Precision Stable TSS Online Monitoring Solution for Industrial Wastewater Treatment and Water Quality Management

In wastewater treatment, sludge processing and environmental monitoring, traditional suspended solids sensors often face issues such as measurement accuracy easily affected by light interference, poor long-term stability, difficult maintenance and complex system integration. The Yexsensor YEX-S1-TSS online suspended solids sensor adopts the scattered light method principle, combined with fiber optic structure and industrial-grade design, providing high-precision, anti-interference and long-term stable TSS online monitoring solutions for complex water quality environments.

Core Selling Points

• Scattered light method combined with infrared LED light source and fiber optic structure delivers strong resistance to external light interference and high stability

• Automatic temperature compensation (Pt1000), reliable accuracy within 0～2000mg/L range, response time ＜30s

• IP68 protection rating, supports submersion up to 20 meters depth, RS485 Modbus/RTU protocol for easy integration

YEX-S1-TSS Online Suspended Solids Sensor Product Overview

The Yexsensor YEX-S1-TSS online suspended solids sensor is an integrated TSS (Total Suspended Solids) online monitoring device that uses the scattered light measurement principle. When a light beam enters the water sample, it detects the intensity of backscattered light and performs linear processing to output the suspended solids concentration in real time. It features a built-in temperature sensor for automatic compensation and outputs standard RS485 (Modbus/RTU) signals, allowing direct connection to PLC, DCS, industrial control computers or touch screens. It is widely used in wastewater treatment, sludge concentration monitoring and various water body suspended solids online detection scenarios, helping engineering technicians achieve precise control of water quality parameters and process automation optimization.

Key Advantages

1. Scattered Light Method and Anti-Interference Design

Adopts advanced scattered light measurement principle with high-stability infrared LED light source and fiber optic structure that effectively shields external light interference. It maintains reliable measurement even under changing lighting or complex water quality conditions. Minimum detection limit is 1mg/L with response time ＜30s, meeting real-time monitoring requirements.

2. High Precision and Temperature Compensation Optimization

Full range 0～2000.0mg/L, resolution 0.1mg/L, accuracy ±5% (depending on sludge homogeneity) and temperature accuracy ±0.3℃. Built-in Pt1000 automatic temperature compensation algorithm effectively eliminates the influence of temperature fluctuations on measurement results, ensuring data consistency and reliability within the 0～50℃ operating temperature range.

3. Industrial-Grade Protection and Durable Structure

The housing uses high-strength POM and ABS engineering materials with IP68 protection rating, supporting long-term submersion up to 20 meters depth. 3/4 NPT threaded submersible installation with clear distance requirements (side wall ≥5cm, bottom ≥10cm). M16-5 pin waterproof connector paired with shielded cable provides strong corrosion resistance, suitable for long-term outdoor and submerged environments.

4. Low Power Consumption, Easy Integration and Standardized Maintenance

Power consumption only 0.2W@12V with 12～24VDC wide voltage supply. Supports Modbus/RTU protocol for seamless integration with existing industrial control systems. Maintenance is straightforward: regularly clean the measurement window and use two-point calibration (zero + slope). The product undergoes 72-hour aging and stability testing before shipment, ensuring long-term reliable operation and reducing user O&M costs.

YEX-S1-TSS Online Suspended Solids Sensor Technical Specifications

YEX-S1-TSS Online Suspended Solids Sensor Application Scenarios

1. Municipal Wastewater Treatment Plants: Online monitoring of suspended solids concentration in aeration tanks, sedimentation tanks and effluent to optimize treatment processes and ensure discharge compliance.

2. Industrial Wastewater Treatment: TSS monitoring in chemical, papermaking, printing and dyeing industries to ensure treatment effectiveness and discharge compliance.

3. Sludge Thickening and Dewatering Processes: Real-time sludge concentration monitoring to guide dosing and dewatering equipment operation, improving treatment efficiency.

4. Rivers, Lakes and Environmental Monitoring: Online monitoring of suspended solids in surface water bodies to support water environment quality assessment and pollution tracing.

5. Aquaculture Wastewater and Rainwater Collection Systems: Monitor high-concentration suspended particles to ensure stable operation of ecological treatment systems.

FAQ

Q1: What measurement principle does the YEX-S1-TSS use?

A1: It uses the scattered light method, calculating suspended solids concentration by detecting the intensity of backscattered light, with strong resistance to external light interference.

Q2: Does the sensor support automatic temperature compensation?

A2: Yes. It has a built-in Pt1000 temperature sensor that realizes full-range automatic temperature compensation, reducing the impact of temperature on measurement accuracy.

Q3: What distance requirements should be noted during installation?

A3: Maintain more than 5cm from side walls and more than 10cm from the bottom to avoid reflection interference from walls and bottom affecting measurement.

Q4: How to perform calibration?

A4: Use two-point calibration. Zero-point calibration uses zero suspended solution or low-concentration solution; slope calibration uses known concentration solution between 200～2000mg/L. Ensure no bubbles at the sensor front before operation.

Q5: What is the protection rating and applicable water depth?

A5: IP68 protection rating, supports long-term submersion within 20 meters water depth.

Q6: How to connect the output signal to the control system?

A6: Standard RS-485 Modbus/RTU protocol, can be directly connected to PLC, DCS, touch screens and other industrial equipment.

Q7: What are the main concerns for daily maintenance?

A7: Focus on keeping the measurement window clean. Regularly clean with tap water or a small amount of detergent. Avoid violent impact on the sensor. The cable should not be under tension.

Q8: Does it support cable length customization?

A8: Yes. Lengths beyond 5 meters and other reasonable technical requirements are supported. Please contact the technical team for confirmation.

Summary

With the scattered light method as the core, the Yexsensor YEX-S1-TSS online suspended solids sensor provides a reliable online TSS detection tool for wastewater treatment and water environment monitoring through strong anti-interference capability, high measurement stability and excellent integration. It helps engineering teams accurately grasp suspended solids change trends, improving process control level and system operation efficiency.

Need detailed technical selection advice, calibration guidance or on-site installation support? Welcome to contact the Yexsensor professional technical support team. We will provide you with targeted engineering solutions.