Product Introduction

The KH.SZ-ZS Optical Turbidity Sensor is a high-precision online water quality monitoring instrument based on the optical light scattering principle, designed for continuous turbidity measurement in rivers, lakes, reservoirs, wastewater treatment plants, aquaculture facilities, and industrial water systems.

When a light beam passes through the water sample, suspended particles scatter the light, and a photodetector positioned at 90 degrees captures the scattered light intensity. Internal calculation algorithms and signal processing convert this signal into accurate real-time turbidity values, providing stable and reliable data even in challenging water conditions.

With an IP68-rated submersible housing supporting immersion up to 60 meters, the KH.SZ-ZS ensures long-term operation with minimal maintenance. RS485 Modbus RTU communication allows seamless integration with PLC, DCS, SCADA, and industrial IoT water quality monitoring platforms, making it ideal for smart environmental management, industrial water treatment, and aquaculture monitoring.

Key Features

• Optical Light Scattering Measurement: 90-degree light scattering method ensures precise turbidity detection, even in waters with high suspended solids
• Wide Measurement Range: Supports turbidity measurement from 0–4000 NTU, suitable for clean water, wastewater, and high-turbidity environments
• High Accuracy and Repeatability: Measurement accuracy ±5% with repeatability ≤5%, providing reliable long-term monitoring
• Stable Measurement Performance: Zero drift and range drift within ±3%, ensuring consistent and dependable turbidity data
• Voltage Stability: Reading variation within ±3% under voltage fluctuations, maintaining stable sensor performance
• IP68 Submersible Design: Waterproof housing supports continuous immersion up to 60 meters in harsh environmental conditions
• Industrial Communication Interface: RS485 Modbus RTU output enables direct integration with PLC, DCS, SCADA, and IoT monitoring systems
• Low Maintenance Operation: Durable optical design allows long-term use with minimal calibration requirements

Application Scenarios

• Environmental Water Quality Monitoring: Continuous turbidity measurement in rivers, lakes, and reservoirs
• Wastewater and Industrial Effluent Monitoring: Online turbidity monitoring for wastewater treatment plants, chemical and industrial effluent systems
• Aquaculture and Fish Farming: Turbidity control for fish ponds, tanks, and aquaculture facilities
• Industrial Process Water Monitoring: Real-time water quality analysis in tanks, pipelines, and laboratory systems
• Drinking Water Treatment and Filtration: Ensures safe water supply through accurate turbidity measurement in filtration and purification systems

Technical Specifications