Product Introduction

The KH.SZ-ZS Optical Turbidity Sensor is a high-precision online monitoring instrument based on the optical light scattering principle. 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. The sensor converts this signal into accurate turbidity values using internal calculation algorithms and signal processing.

Designed for continuous submersible operation, the KH.SZ-ZS delivers stable, real-time turbidity measurements under varying water conditions. Its rugged IP68-rated housing supports deployment at depths of up to 60 meters. RS485 Modbus RTU communication enables seamless integration with PLC, DCS, SCADA, and industrial IoT water quality monitoring systems.

Key Features

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

Application Scenarios

• Environmental monitoring of rivers, lakes, and reservoirs

• Wastewater treatment plants and industrial effluent monitoring

• Aquaculture and fish farming turbidity control

• Online water quality analysis in tanks, pipelines, and laboratories

• Drinking water treatment and filtration system monitoring

Technical Specifications