The Oil in Water Analyzer Principle typically involves the detection and measurement of oil concentration within a water sample. This is often achieved through various technologies and methods, such as fluorescence, infrared spectroscopy, or laser-induced breakdown spectroscopy.  Each of these methods has its own principle of operation:

Fluorescence-based analyzers: 

When oil is excited by light of a specific wavelength, it emits light at a different wavelength (fluorescence).  The intensity of this emitted light is proportional to the concentration of oil in the water.  The analyzer measures this fluorescence to determine the oil content.

Infrared (IR) spectroscopy analyzers: 

Oil molecules absorb infrared light at specific wavelengths.  By measuring the absorption patterns, the analyzer can identify and quantify the oil present in the water.

Laser-induced breakdown spectroscopy (LIBS) analyzers: 

A laser pulse is used to create a plasma from the water sample, which then emits light.  The emitted light spectrum is analyzed to detect the presence of elements associated with oil, allowing for the determination of oil concentration.

These analyzers are designed to provide accurate and reliable measurements of oil in water, which is crucial for environmental monitoring, regulatory compliance, and the protection of aquatic ecosystems.

1. Water Treatment:

   - Boiler Water Treatment: Conductivity sensors are used to monitor the concentration of dissolved salts in boiler water, ensuring efficient operation and preventing scale formation and corrosion.

  - Cooling Tower Water Treatment: These sensors help maintain the quality of water in cooling towers by monitoring the concentration of dissolved solids, which is crucial for preventing scaling and corrosion.

   - Reverse Osmosis Monitoring: Conductivity sensors are essential in reverse osmosis systems to monitor the purity of water before and after filtration, ensuring the effectiveness of the process.

2. Environmental Monitoring:

- Surface Water Monitoring: Conductivity sensors are used to measure the conductivity of rivers, lakes, and other surface water bodies, providing insights into water quality and detecting pollution.

- Groundwater Monitoring: These sensors help in monitoring the conductivity of groundwater, which can indicate the presence of contaminants and the overall health of the aquifer.

- Wastewater Monitoring: Conductivity sensors are crucial in monitoring industrial and municipal wastewater, ensuring compliance with discharge standards and detecting pollutants.

3. Industrial Processes:

- Chemical Production: Conductivity sensors are used to monitor the concentration of chemicals in various industrial processes, ensuring product quality and process efficiency.

- Pharmaceutical Industry: These sensors help in maintaining the quality and consistency of pharmaceutical formulations by monitoring the conductivity of solutions.

 - Food and Beverage Industry: Conductivity sensors are utilized to monitor the quality and safety of food and beverage products, ensuring compliance with industry standards.

4. Agriculture:

- Irrigation Water Monitoring: Conductivity sensors are used to monitor the quality of irrigation water, ensuring that it is suitable for crop growth and free from harmful contaminants.

5. Aquaculture:

- Water Quality Monitoring: Conductivity sensors are essential in aquaculture to monitor the quality of water in fish farms, ensuring a healthy environment for aquatic life.

Yosemitech 4 Electrical Conductivity Sensor for Water adopts advanced four-electrode technology and features an RS485 digital interface that supports the MODBUS protocol. In comparison to traditional two-electrode sensors, the Conductivity Sensor for Water offers higher accuracy, a wider measuring range, and better stability.

1. Soil Health and Fertility: 

In agriculture, measuring the electrical conductivity of soil provides insights into its salinity and nutrient levels. High EC values can indicate an accumulation of salts, which can negatively impact plant growth and crop yields. By monitoring EC, farmers can manage soil health, ensuring optimal conditions for their crops. 

2. Irrigation Management: 

EC monitoring helps in understanding the suitability of irrigation water. Water with high electrical conductivity may lead to soil salinization, affecting plant health. By keeping track of EC levels, farmers can make informed decisions about irrigation practices and water sources. 

3. Water Quality Monitoring: 

In environmental science, monitoring the EC of water bodies is crucial for assessing their quality. Elevated EC levels can signify pollution or the presence of dissolved solids, which may be harmful to aquatic life and human health. Regular monitoring helps in identifying pollution sources and implementing necessary measures to protect ecosystems. 

 4. Aquaculture Management: 

In aquaculture, the EC of water is an important factor to monitor as it affects the health of aquatic organisms. Different species have varying tolerance levels to salinity and dissolved solids. By tracking EC, aquaculture operators can create optimal living conditions for fish and shellfish, ensuring better growth and survival rates. 

 5. Industrial Processes: 

In many industrial applications, electrical conductivity is monitored to ensure proper functioning of processes that depend on the ionic content of solutions, such as cooling systems, chemical manufacturing, and electronic component production. Maintaining the right EC levels is crucial for operational efficiency and product quality. 

 6. Public Health: 

Monitoring the conductivity of drinking water can provide an early warning about contamination. Changes in EC can indicate the presence of harmful substances or the failure of water treatment processes, prompting prompt action to prevent health risks.

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.

Y521-A Conductivity (salinity) sensor calibration

Required equipments and raw materials
Required equipments: two 250mL beakers, one set of gloves.
Raw materials: 1.4083mS/cm conductivity standard solution, 12.852mS/cm conductivity standard solution.

Calibration steps
There are two methods of user calibration for the conductivity sensor: 1-point calibration and 2-points calibration.
1-point calibration was done in 1.4083mS/cm conductivity standard solution, 2-points calibration was done in 1.4083mS/cm conductivity standard solution and 12.852mS/cm conductivity standard solution.

1-point calibration step (change the K value)

Step 1: put an appropriate amount of 1.4083mS/cm conductivity standard solution into a 250mL beaker, put the sensor into the beaker, shake the sensor gently to remove air bubbles from the front of the sensor;

Step 2: Under the “Automatic Calibration” interface, change the “Single/First Point Calibration Value” to 1.4083, 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;
Step 3: click “Start” under the “CT” interface to get the real-time measurement of the conductivity, TDS and temperature, check that the conductivity is close to 1.41mS/cm to verify that the one-point calibration is successful.

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

Step 1: put an appropriate amount of 1.4083mS/cm conductivity standard solution into a 250mL beaker, put an appropriate amount of 12.852mS/cm conductivity standard solution into another 250mL beaker;
Step 2: put the sensor into the beaker containing 1.4083mS/cm conductivity standard solution, shake the sensor gently to remove air bubbles from the front of the sensor;
Step 3: Under the “Automatic Calibration” interface, change the “Single/First Point Calibration Value” to 1.4083, change the “Second Point Calibration Value” to 12.852, 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 beaker containing 12.852mS/cm conductivity standard solution, shake the sensor gently to remove air bubbles from the front of the sensor, 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;
Step 4: click “Start” under the “CT” interface to get the real-time measurement of the conductivity, TDS and temperature, check that the conductivity is close to 12.85mS/cm, then clean the sensor with distilled water or deionized water, wipe it dry and put it into the beaker containing 1.4083mS/cm conductivity standard solution, shake the sensor gently to remove air bubbles from the front of the sensor, get the real-time measurement of the conductivity, TDS and temperature, check that the conductivity is close to 1.41mS/cm to verify that the two-points calibration is successful.