Water quality acid-base tester is a commonly used water quality monitoring device to measure the pH of a water body. It can help us understand the acidity and alkalinity of the water body, so as to evaluate the quality of the water. The following will introduce the use of the water acid and alkali tester, and explain the principle and application scenarios of the pH sensor.
1. How to use the water acid and alkali tester
1. Preparation: First, make sure that the sensors and telemetry terminals are fully powered. And make sure that the connection between the sensor and the terminal is normal.
2. Calibrate the instrument: The tester needs to be calibrated before the test can be performed. The purpose of calibration is to ensure the accuracy and reliability of the tester. During the calibration process, the sensor needs to be placed in a standard buffer and calibrated according to the steps on the manual.
3. Perform the test: After the calibration is completed, you can start to test the pH of the water quality. Immerse the tester's sensor in the water to be measured, make sure the sensor is completely immersed in the water, and wait for a while until a stable pH is displayed on the terminal.
4. Record the results: When the tester shows a stable pH, the results can be recorded. At the same time, the sensor can also be connected to the terminal as needed for data transmission and analysis, and the data can be transmitted to the cloud platform through the terminal, where real-time data display and historical storage can be carried out.
Second, the principle of pH sensor
The pH sensor is the key component of the water pH tester, and its principle is based on the pH measurement of the glass electrode. A glass electrode is a special type of electrode that is filled with an electrolyte solution called an "inner fluid". When the glass electrode is immersed in a body of water, the hydrogen ions (H+) in the water molecules are exchanged with the hydrogen ions in the inner liquid, resulting in a potential difference.
A pH sensor determines the pH of a body of water by measuring this potential difference. Specifically, there are two electrodes in a pH sensor, one is a glass electrode and the other is a reference electrode. The glass electrode is immersed in a body of water, and the reference electrode is connected to the external environment to form a cell. When the pH of a body of water changes, so does the potential difference in the battery, and by measuring this change, the pH of the body of water can be determined.
3. Application scenarios of pH sensors
1. Water quality monitoring: pH sensors can be used to monitor the pH of tap water, groundwater, rivers, lakes and other water bodies to help assess the quality of water and detect the presence of pollutants.
2. Sewage treatment: In the process of sewage treatment, the pH sensor can be used to monitor the pH change of the water body before and after treatment, and adjust the pH during the treatment process to ensure that the treatment effect meets the standard requirements.
3. Aquaculture: In aquaculture, pH sensors can be used to monitor the pH of fish ponds, aquariums and other water bodies, help maintain a suitable water quality environment, and promote the healthy growth of fish and aquatic organisms.
4. Laboratory research: pH sensors are also widely used in the laboratory, which can be used to measure the pH of experimental liquids and help researchers conduct experiments and research.
Water pH tester is a commonly used water quality monitoring device that measures the pH of a water body through a pH sensor. The correct use of the water pH tester and the understanding of the principle of the pH sensor can help us better understand the water quality status, so that we can take corresponding measures to protect and improve the water environment.