High accuracy Tubidity sensor with automatic brush for industry sewage water

The Daruifuno turbidity sensor OPTU311 with self-cleaning, multi-range infrared, provides fast, accurate, and reliable online monitoring of water quality. It's designed for seamless integration into industrial control systems, making it an ideal solution for a wide range of water treatment and monitoring applications.

Technical Parameters

Features

• Reliable performance, simple installation and calibration

• High-Precision Measurement: Utilizing an advanced 860nm LED infrared light source and the infrared absorption and scattering method, the sensor delivers exceptionally stable and accurate turbidity data.

• Robust and Durable Design: Built with SS316L stainless steel and an IP68 waterproof rating, the OPTU31 is engineered to withstand harsh industrial and environmental conditions, ensuring a long operational life.

• Self-Cleaning Functionality: The integrated self-cleaning brush automatically prevents fouling and biofouling on the optical surface, significantly reducing maintenance and ensuring continuous, reliable readings without manual intervention.

• Excellent Anti-Interference Capability: With electrically isolated communication and power interfaces, the sensor effectively resists electromagnetic interference, guaranteeing stable and uninterrupted data transmission.

• Seamless System Integration: The sensor supports the standard RS485 Modbus RTU protocol, allowing for easy and direct connection to industrial systems like PLCs, DTUs, and PCs.

• Wide Application Range: Its versatile design and reliable performance make it suitable for a broad spectrum of applications, including wastewater treatment, waterworks, surface water monitoring, and various industrial processes.

The sensor employs an 880nm dual-beam infrared scattered light principle to provide precise turbidity measurements across a wide range, from 0.01 to 4000 NTU. This dual-beam design significantly improves both accuracy and stability.
Precision and Speed
Experience exceptional measurement accuracy with a tolerance of ±2% of the reading or ±0.1 NTU, whichever is greater. Thanks to a rapid T90 response time of less than 60 seconds, the sensor delivers real-time data, enabling efficient process control.
Durability and Reliability
Designed for demanding environments, this sensor is built with SUS 316L stainless steel and holds an IP68 protection rating, guaranteeing reliable performance even in harsh underwater conditions. An integrated automatic cleaning brush provides a self-cleaning function, preventing fouling and ensuring consistent, long-term accuracy with minimal maintenance.
Seamless Integration

The device supports the Modbus communication protocol via an RS485 interface, making it fully compatible with standard industrial equipment like PLCs, DTUs, and digital acquisition meters.

Application environment:

Water quality monitoring: Infrared digital turbidity sensors can be used to monitor turbidity changes in water bodies such as tap water, surface water, rivers, lakes and reservoirs. In these environments, sensors help assess the cleanliness of water bodies and changes in water quality.

Sewage treatment: In sewage treatment plants, infrared digital turbidity sensors can be used to monitor the turbidity of sewage before and after treatment, help evaluate the treatment effect and determine whether further treatment steps are required to ensure that the treated water quality meets the discharge standards.

Aquaculture: In hydroponic and aquaculture farms, infrared digital turbidity sensors can help monitor suspended matter in water to maintain a suitable water quality environment and promote the growth and health of plants and animals.

Environmental monitoring: Infrared digital turbidity sensors can also be used in environmental monitoring projects, such as measuring water quality in rivers, lakes and oceans to monitor environmental changes and pollution conditions.

Waterworks (Tap Water Plants): It plays a key role in ensuring the safety of drinking water by continuously monitoring the turbidity levels throughout the purification process, from raw water intake to the final output.

Industrial Applications: It serves numerous industries that require precise turbidity control, such as food and beverage production, chemical processing, and aquaculture, helping to maintain product quality and operational efficiency.

Infrared digital turbidity sensors are widely used in various fields involving water turbidity and suspended solids concentration. They provide a convenient, efficient, and accurate measurement method that contributes to water safety, environmental monitoring, and quality control of industrial production processes.

Suzhou Delfino Environmental Technology Co., Ltd. is a professional manufacturer of water analysis instruments and sensors, integrating development and production together. Our main products include online, portable water quality analysis instruments. Since its establishment, we have focused on the development and production of water quality analysis instruments.

The monitoring parameters of water quality analyzer instruments mainly include: pH, ORP, dissolved oxygen, conductivity/TDS/salinity, turbidity, SS, Chlorophyll, Blue-green algae, COD, NH4-N, NO3, free chlorine, peracetic acid and so on.

As the rapid growth of the global economy leads to increased consumption and urbanization, solid waste generation has increased significantly, directly affecting the water and wastewater treatment industry. Daruifuno aims to provide solutions to various industries and fields and create a cleaner and healthier drinking water environment for the earth.

Our products mianly application for follows industry：Municipal sewage water treatment plant, industrial wastewater treatment plant, Chemical, Petroleum, Papermaking, Food and drinking, Medicine, Electroplating, PCB plant, fish farm,Lake/river/ocean/groundwater/surface and so on.

Our company was established in 2015, but our predecessor has been committed to the water quality testing industry for more than 10 years. At present, we have our own R&D center with many senior engineers with more than 10 years of experience in the research and development of water quality analyzers and water quality sensors, and are equipped with strict front-line production workers, professional quality inspection personnel and testing equipment to check every process.

As a high-tech enterprise in China, our production is strictly in accordance with ISO9001 from raw material sources to finished equipment. After years of efforts, the company has obtained more than 20 patent certificates, high-tech enterprise certificates, CE, SGS, etc. He has accumulated rich practical experience in the field of water quality testing and has unique insights in the field of water quality testing.

Our company takes "reasonable prices, efficient production time, and good after-sales service" as its purpose and adheres to the business philosophy of "based on quality and creating value for customers". At present, the company is actively exploring the international market and actively promoting its own brands and products. It has been exported to Asia, Southeast Asia, Europe, Africa, and South America, with customers in more than 50 countries and regions around the world. And hope to develop together with customers for mutual benefit with high-quality products and sincere services.