Water Treatment:

Drinking Water:

Turbidity sensors are used to monitor and control the clarity of drinking water from inlet to outlet in water treatment plants, ensuring compliance with safety standards and detecting contaminants like bacteria and pathogens.

Process Water:

These sensors help maintain the quality of process water in various stages of treatment and distribution networks.

Wastewater Management:

Wastewater Treatment Plants:

Turbidity sensors are crucial for monitoring the effectiveness of wastewater treatment processes, including aeration, recirculation, and sludge treatment. They help ensure that the treated water meets regulatory standards before being discharged or reused.

Environmental Monitoring:

Surface Water:

Turbidity sensors are used to monitor the quality of rivers, lakes, and reservoirs, helping to detect pollution levels and protect aquatic ecosystems.

Marine Applications:

These sensors are employed in marine environments to monitor the clarity of water, which is important for the health of marine life and for applications like exhaust gas cleaning on ships.

Industrial Processes:

Food and Beverage:

Turbidity sensors are used in the production of beverages like beer and wine to measure the haze and concentration of suspended particles, ensuring product quality.

Chemical and Pharmaceutical:

These sensors help maintain the clarity and quality of liquids used in chemical and pharmaceutical manufacturing processes, ensuring product consistency and safety.

Power and Energy:

Turbidity sensors are used in power plants to monitor water quality in cooling systems and other processes, ensuring efficient operation and compliance with environmental regulations.

Real-Time Monitoring:

Online turbidity sensors provide continuous, real-time data on water turbidity, allowing for immediate detection and response to changes in water quality.

Enhanced Process Control:

These sensors enable better control over industrial processes by ensuring that water quality parameters are consistently monitored and maintained within desired limits.

Improved Accuracy and Reliability:

Online turbidity sensors offer high accuracy and reliability, often featuring advanced technologies like automatic cleaning and stable optical components that reduce maintenance needs and enhance measurement precision.

Versatility:

Online turbidity sensors can be used in a wide range of applications, including drinking water, wastewater, industrial processes, and environmental monitoring, making them versatile tools for various sectors.

Turbidity Sensor adopts optical technology to measure the turbidity of water by analyzing the scattering and absorption of light as it travels through the water. It comprises a light source, a receiver, and a measuring circuit. The light emitted by the source passes through the water, gets scattered and absorbed by suspended particles, and is then received by the receiver and converted into an electrical signal. The measuring circuit then calculates the turbidity of the water sample based on the strength of the electrical signal.

From April 21th to 23rd, 2025, IE Expo China 2025 concluded successfully at the Shanghai New International Expo Centre. As a highly anticipated communication platform in the industry, the exhibition attracted exhibitors, experts, scholars, and industry elites from around the world to gather in Shanghai. Through various forms such as cutting - edge technology displays and high - end forum sharing, it created a professional and forward - looking audio - visual feast for the industry.

Suzhou Yosemite Technology Co., Ltd. ("YOSEMITECH"), which has been deeply involved in the water quality monitoring field for over 11 years, always adheres to the mission of "Water Monitoring Made Simple". YOSEMITECH showcased its self - developed water quality monitoring sensors and instruments at the exhibition. As a manufacturer of water quality monitoring sensors, we had in - depth exchanges with domestic and foreign partners and industry peers during the exhibition. It fully demonstrated its profound expertise in areas such as water quality sensor research and development and intelligent monitoring system integration, and continuously empowered global water quality monitoring scenarios with innovative technologies to promote the efficient and intelligent development of the industry.

YOSEMITECH Y511-A Turbidity Sensor Calibration

Required equipments and raw materials
required equipments: three 1L brown bottles, one magnetic stirrer, one iron stand, two magnetic rotors, one set of gloves.
raw materials: 460NTU turbidity standard solution, distilled water or deionized water.

Calibration steps
There are three methods of user calibration for the turbidity sensor: 0-point calibration, 1-point calibration and 2-points calibration.
0-point calibration was done in deionized water, 1-point calibration was done in 460 NTU standard solution, 2-points calibration was done in deionized water and 460 NTU standard solution.

0-point calibration step (change the B value)

Put an appropriate amount of distilled water or deionized water into a 1L brown bottle, put the sensor in the center of the brown bottle, which not close to the wall around the brown bottle, and then fix the sensor with an iron stand, adjust the high and low position of the sensor. Pay attention to maintain a distance greater than 10cm between the front end of the sensor and the bottom of the brown bottle.
Under the “Automatic Calibration” interface, click “0 point” to do zero-point calibration, wait for the values in the pop-up window to stabilize, and click “OK” to complete the calibration. Click “Get” to check whether the B value is written correctly.
Click “Start” under the “TUR” interface to get the real-time measurement of the turbidity and temperature, check that the turbidity is close to 0NTU to verify that the zero-point calibration is successful.

1-point calibration step (change the K value)
Put an appropriate amount of 460NTU turbidity standard solution into a 1L brown bottle, put in a magnetic rotor, place the brown bottle on the magnetic stirrer, and open the magnetic stirrer to stir the standard solution thoroughly. Put the sensor in the center of the brown bottle, which not close to the wall around the brown bottle, and then fix the sensor with an iron stand, adjust the high and low position of the sensor. Pay attention to maintain a distance greater than 10cm between the front end of the sensor and the bottom of the brown bottle.
Under the “Automatic Calibration” interface, change the “Single/First Point Calibration Value” to 460, click “1 point” to do one-point calibration, wait for the values in the pop-up window to stabilize, and click “OK” to complete the calibration. Click “Get” to check whether the K value is written correctly.
Click “Start” under the “TUR” interface to get the real-time measurement of the turbidity and temperature, check that the turbidity is close to 460NTU to verify that the one-point calibration is successful.

2-points calibration step (change the K and B values)

Drop down “Port” and select the corresponding COM port, and then click “Connect”, after connecting the sensor successfully, click “Measure”. Under the “TUR” interface, click “Brush”, and click “Turn On Brush” under the “Wiper” interface to remove the bubbles on the test window. Click “Start” to get the real-time measurement of the turbidity and temperature.
Under the “Automatic Calibration” interface, change the “Single/First Point Calibration Value” to 0, change the “Second Point Calibration Value” to 460, click “2 points” to do two-points calibration, wait for the values in the pop-up window to stabilize, and click “OK”. Then clean the sensor with distilled water or deionized water, wipe it dry and put it into the 460NTU turbidity standard solution after full stirring according to the method of step 2, wait for the values in the pop-up window to stabilize, and click “OK” to complete the calibration. Click “Get” to check whether the K and B values are written correctly.
Click “Start” under the “TUR” interface to get the real-time measurement of the turbidity and temperature, check that the turbidity is close to 460NTU, then clean the sensor with distilled water or deionized water, wipe it dry and put it into the 0NTU turbidity standard solution after full stirring according to the method of step 2 to get the real-time measurement of the turbidity and temperature, check that the turbidity is close to 0NTU to verify that the two-points calibration is successful.