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    Trübungssensor

    The turbidity sensor is a water quality sensor that utilizes an RS485 communication interface and the standard Modbus protocol. It uses an infrared LED with a wavelength of 860nm as the light source, which is not affected by the color of the water sample. The turbidity probe is equipped with an automatic cleaning brush, and the housing is waterproof with a high protection rating of up to IP68. The turbidity sensor can be used for measuring rivers and streams, wastewater and sewage, sedimentation tank control, sediment transport research, and laboratory measurements.

    • Model: VRS-ZD-N01-&-EX
    • MOQ: 1 STK.
    • Liefertermin: innerhalb von 24 Stunden
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    See Through the Chaos: The Veswe Digital Turbidity Sensor

    In the complex world of water management, clarity is everything. Whether you are controlling a sedimentation tank in a wastewater plant or monitoring the delicate ecosystem of a river, you cannot manage what you cannot measure. Introducing the Veswe Digital Trübungssensor, a high-performance water sensing solution designed to deliver precise, stable, and reliable data in even the harshest environments.
    This isn’t just another gauge; it is a sophisticated turbidity monitor built on the mature 90° light scattering principle. By utilizing an infrared LED light source with a wavelength of 860nm, this water turbidity meter eliminates interference from the color of the water sample, ensuring that your readings reflect true suspended solids, not just discoloration. It is the eyes of your water detection system, providing the critical insight needed to maintain compliance and efficiency.

    Advanced Optical Technology & Stability

    Accuracy is the currency of trust. The Veswe turbidity sensor incorporates advanced fiber optic technology, making it a superior nephelometric turbidimeter that is highly resistant to external light interference. Unlike traditional sensors that drift over time, this unit features a built-in filter algorithm and automatic temperature compensation. This means whether you are deploying it as an inline turbidity meter in a warm industrial outflow or a cold mountain stream, the internal temperature transmitter adjusts the data in real-time for unwavering accuracy.
    The result? A turbidity analyzer that offers exceptional repeatability. It cuts through the noise of magnetic fields and ambient light, delivering a clean signal that you can base your decisions on.

    Built for the Deep End: Durability & Design

    Water is heavy, and pressure is relentless. That’s why the Veswe turbidity probe is engineered with an IP68 waterproof rating, capable of withstanding submersion at depths up to 20 meters. Whether you choose the lightweight, corrosion-resistant plastic case or the high-strength stainless steel housing, you are getting a waterproof sensor built to last.
    With a lifespan of over 2 years and a surface treated for corrosion resistance, this turbidity analyser is ready for long-term deployment. The standard 3/4NPT tapered thread makes installation and fixation incredibly convenient, allowing you to integrate this water probe sensor into existing pipelines or mounting brackets with ease.

    Self-Cleaning Intelligence for Low Maintenance

    We know that maintenance downtime is the enemy of productivity. The Veswe turbidity sensor (specifically the -2 shell model) features a revolutionary built-in automatic cleaning brush. This mechanical wiper actively removes bubbles and prevents biological adhesion or sludge buildup on the optical window.
    This self-cleaning capability drastically extends the maintenance cycle, ensuring that your turbidity measurement data remains consistent without constant manual intervention. For applications involving heavy suspended solids or algae growth, this feature is a game-changer, keeping your turbidimeter clean and your data flowing.

    Versatile Applications & Smart Integration

    From smart water monitoring networks in municipal treatment plants to research-grade sediment transport studies, this sensor adapts to your needs. It communicates via the standard RS485 interface using the Modbus protocol, making it easy to connect to PLCs, data loggers, or our handheld Veswe analyzers.
    It is the perfect water detection sensor for:
    • Wastewater Treatment: Monitoring effluent clarity and sedimentation tank performance.
    • Aquaculture: Ensuring optimal water clarity for fish health.
    • Environmental Protection: Tracking pollution levels in rivers and lakes.
    • Industrial Processes: Controlling dosing systems based on real-time turbidity monitoring.

    Precision Calibration & Ease of Use

    Out of the box, the Veswe turbidity sensor comes pre-calibrated, allowing for immediate deployment. However, for long-term precision, the two-point calibration process is simple and effective. Using deionized water for zero-point calibration and a standard solution for full-scale calibration ensures your turbidity monitor stays sharp. With a response time of ≤30 seconds and multiple measuring ranges (up to 4000 NTU), it handles everything from drinking water to thick sludge with equal finesse.
    Technical Highlights:
    • Principle: 90° Light Scattering (Nephelometric)
    • Light Source: 860nm Infrared LED (Color Independent)
    • Protection: IP68 (Up to 20m depth)
    • Features: Auto Cleaning Brush (Optional), Temp Compensation
    • Output: RS485 (Modbus-RTU)
    • Material: Corrosion-resistant Plastic or Stainless Steel
    The Bottom Line:
    Don’t let murky water obscure your data. Equip your team with the Veswe Trübungssensor. It combines the precision of a lab-grade turbidity analyser with the ruggedness of an industrial water sensor. Whether you need a robust inline turbidity meter for continuous flow or a stationary turbidity probe for deep-water monitoring, this device delivers the clarity you need to make confident decisions.

    View - Turbidity Sensor

    Turbidity is caused by suspended particles in water, which scatter the incident light. Typically, a 90-degree angle scattering light is used as the testing signal. The relationship between scattered light and turbidity follows a multi-segment linear relationship, requiring the turbidity sensor to be calibrated at multiple points. Additionally, variations in light source intensity and temperature can affect the accuracy of measurements. Through multiple experimental studies and calculations, we have developed a turbidity sensor with temperature compensation capability, high accuracy, and good stability.

    VRS-ZD-N01-EX is an online water quality monitoring digital turbidity sensor. It adopts the mature 90° scattering light principle and incorporates fiber optic technology into the turbidity sensor, providing superior repeatability and stability while being less susceptible to environmental light interference. When used in conjunction with the sensor’s automatic cleaning brush, it effectively removes bubbles and reduces the impact of contamination on measurements, prolonging the maintenance cycle and maintaining excellent stability even during long-term online use. The sensor also incorporates a built-in filter algorithm, enhancing its resistance to external light interference. It features a built-in temperature transmitter that enables automatic temperature compensation, making it suitable for long-term online monitoring in various environments.

    Turbidity Sensor Datasheets

    StromversorgungDC 10~30V
    Stromverbrauch0.2W
    Messbereich0.00~50.00NTU; 0.0~200.0NTU; 0.0~1000.0NTU; 0~4000NTU
    Genauigkeit±5%FS (25°C); ±0.5°C
    Auflösung0.01NTU(0.00~50.00NTU);
    0.1NTU(0.0~200.0NTU);
    0.1NTU(0.0~1000.0NTU);
    1NTU(0~4000NTU);
    Temperature: 0.1°C
    Reaktionszeit≤30sec
    Working condition0~40℃
    Arbeitsweise90° light scattering method
    Using life2 years in normal use
    Klasse schützenIP68
    Wire lengthdefault 5m (customized)
    Housing materialCorrosion-resistant plastic

    Turbidity Sensor Advantages

    1.The monitoring principle of 90-degree angle scattering light ensures accurate and stable measurements and is suitable for long-term online monitoring in various environments without being affected by magnetic fields.
    2. It has a built-in temperature transmitter with automatic temperature compensation function, reducing the interference of temperature on measurement results.
    3. It adopts a fiber optic structure, which has strong resistance to external light interference.
    4. The infrared LED light source provides high stability, convenience, speed, and ease of maintenance.
    5. The turbidity sensor undergoes strict calibration before leaving the factory, eliminating the need for secondary calibration. It can be used immediately upon receipt, allowing for quick deployment.
    6. It has an IP68 protection rating, with waterproof housing that enables normal usage in water depths of up to 20 meters.
    7. The surface of the turbidity probe is treated with corrosion and passivation, ensuring a lifespan of 2 years or more.
    8. The turbidity sensor adopts a 3/4NPT tapered thread, making installation and fixation more convenient

    Turbidity Sensor FAQs

    What is a turbidity sensor?

    A turbidity sensor is a device that utilizes optical principles to measure the turbidity of water. The lower the amount of light that can pass through, the higher the turbidity of the water sample. It is widely used in areas such as water quality monitoring, wastewater treatment, water treatment plants, and water feature engineering.

    How to calibrate turbidity sensor?
    • Place the turbidity sensor into a standard turbidity solution with a value of 0 NTU (deionized water). Calibration can be performed in a dark and clean air environment with less stringent requirements. Once the reading becomes stable, send the zero-point calibration command.
    • Next, place the turbidity sensor into a standard turbidity solution corresponding to the maximum range. Once the reading becomes stable, send the full-scale calibration command to complete the turbidity calibration.
    • Note: During the calibration process, ensure that there are no bubbles attached to the optical window of the transmitter. Maintain a distance of at least 7 cm between the transmitter and the bottom of the container.
    How to maintain the turbidity sensor?
    • Please do not attempt to open or repair the turbidity meter yourself in case of any noticeable faults. Contact us as soon as possible for assistance.
    • Before taking measurements, remove the black rubber protective cover.
    • Regularly clean the adhered substances on the sensor probe according to the usage environment, as they can cause measurement errors. Avoid scratching the light-guiding part of the probe during cleaning. (It is recommended to clean every 30 days)
    • It is recommended to rinse the outer surface of the turbidity sensor with running water. If there are still residues, use a soft damp cloth to wipe it clean.
    • Calibrate the device before each use, and for long-term use, it is recommended to calibrate every 3 months. The calibration frequency should be adjusted accordingly based on the specific usage environment (degree of dirtiness in the application, deposition of chemicals, etc.).
    How does a turbidity sensor work?
    • When a beam of light is directed into a water sample, the turbidity particles in the water cause the light to scatter. By measuring the intensity of the scattered light in the direction perpendicular to the incident light and comparing it with internal calibration values, the turbidity of the water sample is calculated. The final value is obtained through linearization processing and is outputted as the result.
    How to install turbidity sensor?

    Our turbidity sensor comes with an NPT 3/4 thread, which can be used in conjunction with our waterproof conduit. The cable should be threaded through the conduit, and the turbidity sensor can be screwed into the thread of the waterproof conduit.


    Note: Install the turbidity sensor in an area with slow water flow and no bubbles. Maintain a distance of 5 cm from surrounding walls during installation, and ensure that there are no obstacles within 7 cm below the sensor.

    Does temperature affect turbidity readings?

    Temperature variations have an impact on the electrical output of the sensor. Even if the turbidity level remains constant, fluctuations in temperature can alter the turbidity readings. This influence can be addressed by incorporating a temperature compensation feature.

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