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Transmitter
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
Instrava Engineering & Customization Support
At Instrava, our instruments are developed with a strong focus on real industrial applications. Each product is designed to operate as a reliable component within measurement, control, and automation systems, rather than as a standalone device.
Our engineering team supports customers during product selection by evaluating process conditions, operating environments, and system requirements, ensuring stable and long-term performance in actual use.
In addition to standard configurations, Instrava offers flexible customization options, including measurement range, materials, output signals, communication interfaces, and installation methods. All custom solutions are engineered to meet industrial standards and application-specific demands.
We also support OEM projects and system integration, providing consistent product design, technical documentation, and long-term supply to ensure smooth integration and reliable operation throughout the project lifecycle.
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.
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.
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.
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.
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.
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
By choosing Instrava, you gain a partner with a deep understanding of industrial applications and the expertise to meet today’s operational challenges.
Our role extends beyond products—we support your success through dependable solutions and long-term commitment.
Engineering-Driven Innovation
Innovation at Instrava is guided by real industrial requirements. We continuously refine our technologies to address evolving operational challenges, ensuring practical and reliable performance in demanding environments.
Application-Specific Customization
We provide engineering-level customization to match specific process conditions. From measurement range and materials to output signals and installation options, our solutions are configured to fit real applications.
Proven Quality and Reliability
Quality and reliability are fundamental to every Instrava product. Manufactured under strict quality control and thoroughly tested, our instruments deliver accurate, stable, and long-term performance.
Global Capability with Local Support
Instrava combines global engineering expertise with responsive local support, ensuring our partners benefit from internationally aligned technology and timely regional service.
Comprehensive Product Portfolio
Our broad portfolio of measurement and control instruments enables us to address a wide range of industrial needs, providing integrated solutions from a single, reliable source.
Partner-Oriented Engineering Support
We work closely with our partners from technical consultation to after-sales support. Our focus is on delivering solutions that create lasting value and support long-term operational success.
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