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Turbidity Sensor for Accurate Water Quality Monitoring
Our turbidity sensor is designed for continuous and reliable turbidity measurement in industrial and environmental water applications. Based on the ISO 7027 infrared nephelometric method, it delivers stable, repeatable results while effectively eliminating the influence of sample color.
Key Highlights
ISO 7027 compliant infrared scattered light measurement
Dual-beam infrared optical detection technology
High repeatability and long-term stability
RS485 communication for seamless system integration
Suitable for standard, customized, and OEM applications
Transmitters & Sensors Description
Why This Turbidity Sensor
Unlike conventional turbidity sensors that are sensitive to color interference and signal drift, this sensor adopts a dual-beam infrared scattered light photometric design to ensure consistent performance even in complex water conditions.
For procurement teams and system integrators, this means:
Reduced calibration frequency
Lower maintenance costs over the product lifecycle
Stable data output for control and monitoring systems
Reliable operation in long-term continuous measurement scenarios
This turbidity sensor is well suited for projects where data reliability and operational stability are critical.
Turbidity Sensor Measurement Technology & Performance
The sensor operates using the ISO 7027 infrared light scattering principle, which minimizes the influence of ambient light and sample color. The dual-beam optical structure enhances measurement consistency and improves resistance to optical contamination.
Performance Advantages
Excellent repeatability and measurement stability
Built-in self-diagnostic function to ensure data accuracy
Suitable for both low and high turbidity measurement ranges
Designed for continuous online monitoring
Turbidity Sensor Typical Applications & Industries
This turbidity sensor is widely used across various water-related industries:
Water & Wastewater Treatment
Continuous monitoring of influent and effluent turbidity to support process control and regulatory compliance.Industrial Process Water
Turbidity measurement in cooling water, process water, and recycling systems.Environmental Monitoring
Long-term turbidity monitoring in surface water and discharge points.OEM Analytical Systems
Integration into water quality analyzers, skids, and automated monitoring stations.
Turbidity Sensor Cleaning & Maintenance Options
To reduce maintenance workload and improve measurement reliability, the sensor can be optionally equipped with an automatic wiper cleaning function. This effectively prevents fouling on the optical window and ensures stable readings in high-fouling environments.
Benefits
Reduced manual cleaning frequency
Improved long-term measurement stability
Suitable for unattended monitoring installations
Transmitters & Sensors Parameter
Measurement Range
0.01–100 NTU
0.01–4000 NTU
Measurement Accuracy
±2% FS or ±0.1 NTU
Temperature Range (Measured Medium)
0–45 °C
Flow Velocity
Low turbidity sensor: 300–700 ml/min
High turbidity sensor: ≤2.5 m/s
Pressure
Low turbidity sensor: Atmospheric pressure
High turbidity sensor: ≤0.4 MPa
Output Signal
RS485
Materials
Low turbidity sensor: ABS + 316L
High turbidity sensor: 316L + PVC
Ingress Protection
IP68 (high turbidity sensor)
Process Connection
Inlet: 1/4 NPT
Outlet: 1/2 NPT (low turbidity sensor)
Ambient Conditions
Temperature: 0–60 °C
Relative humidity: <90%
Signal Cable
Low turbidity sensor: 3 m (standard, extension not recommended)
High turbidity sensor: 10 m (standard), extendable up to 100 m
Instrava OEM/ODM
Reliable Instruments. Solutions That Fit Your Application.
Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.
By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.
How does this turbidity sensor reduce the influence of water color?
This turbidity sensor is based on the ISO 7027 infrared scattered light method, which minimizes the impact of sample color by using infrared wavelengths instead of visible light. This makes it suitable for complex water conditions where color interference is common.
Is the turbidity sensor suitable for continuous online monitoring?
Yes. The sensor is designed for continuous online measurement and offers stable output, good repeatability, and built-in self-diagnostic functions to ensure reliable long-term operation in industrial and environmental monitoring systems.
What is the difference between low and high turbidity versions?
The low turbidity sensor is optimized for high sensitivity and low flow conditions, while the high turbidity sensor is designed for harsher environments with higher flow velocity and pressure. Each version uses different materials and mechanical structures to match its application range.
Can this turbidity sensor be integrated into existing control systems?
The sensor supports RS485 communication, making it suitable for integration with PLCs, controllers, and upper-level monitoring systems commonly used in water treatment and industrial automation applications.
How is sensor maintenance handled in high-fouling environments?
An optional automatic wiper cleaning function is available to reduce fouling on the optical surface. This feature helps maintain measurement stability and significantly reduces manual maintenance requirements.
Does Instrava support customization or OEM integration for this turbidity sensor?
Instrava provides customization and OEM support, including measurement range selection, material options, cable length, and integration requirements. Engineering support is available to ensure compatibility with specific system designs and applications.
Why Choose Instrava
Built on Consistency, Not Claims
Focused on Industrial Applications
We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.
Strict Product Selection Criteria
Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.
Reliable Supply & Quality Consistency
We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.
Practical, Experience-Based Support
Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.
Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.
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