DFRobot provides a variety of water quality sensor products with uniform size and interface, not only meeting the needs of various water quality testing but also suitable for DIY multi-parameter water quality testers.
The pH is a value that measures the acidity or alkalinity of the solution. It is also called the hydrogen ion concentration index. The pH is a scale of hydrogen ion activity in solution. The pH has a wide range of uses in medicine, chemistry, and agriculture. Usually, the pH is a number between 0 and 14. Under thermodynamic standard conditions, pH=7 means the solution is neutral; pH<7 means the solution is acidic; pH>7 means the solution is alkaline.
NOTES
- The BNC connector and the signal conversion board must be kept dry and clean; otherwise, it will affect the input impedance, resulting in inaccurate measurement. If damp, it needs to be dried.
- The signal conversion board cannot be directly placed on a wet or semiconductor surface, as it will affect input impedance and cause inaccurate measurement. It is recommended to use nylon pillars to fix the signal conversion board and maintain a certain distance between the board and the surface.
- The sensitive glass bubble at the head of the pH probe should avoid contact with hard materials. Any damage or scratches will cause the electrode to fail.
- After completing the measurement, disconnect the pH probe from the signal conversion board. The pH probe should not be connected to the signal conversion board without power supply for a long time.
Arduino Connection Diagram
DFRobot provides a variety of water quality sensor products with uniform size and interface, not only meeting the needs of various water quality testing but also suitable for DIY multi-parameter water quality testers.
The pH is a value that measures the acidity or alkalinity of the solution. It is also called the hydrogen ion concentration index. The pH is a scale of hydrogen ion activity in solution. The pH has a wide range of uses in medicine, chemistry, and agriculture. Usually, the pH is a number between 0 and 14. Under thermodynamic standard conditions, pH=7 means the solution is neutral; pH<7 means the solution is acidic; pH>7 means the solution is alkaline.
NOTES
- The BNC connector and the signal conversion board must be kept dry and clean; otherwise, it will affect the input impedance, resulting in inaccurate measurement. If damp, it needs to be dried.
- The signal conversion board cannot be directly placed on a wet or semiconductor surface, as it will affect input impedance and cause inaccurate measurement. It is recommended to use nylon pillars to fix the signal conversion board and maintain a certain distance between the board and the surface.
- The sensitive glass bubble at the head of the pH probe should avoid contact with hard materials. Any damage or scratches will cause the electrode to fail.
- After completing the measurement, disconnect the pH probe from the signal conversion board. The pH probe should not be connected to the signal conversion board without power supply for a long time.
Arduino Connection Diagram