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Water Analog pH Sensor V2 (DFRobot Gravity) - SEN0161-V2
DFRobot Gravity: Analog pH meter V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. It is commonly used in various applications such as aquaponics, aquaculture, and environmental water testing. As an upgraded version of pH meter V1, this product greatly improves the precision and user experience. The onboard voltage regulator chip supports the wide voltage supply of 3.3~5.5V, which is compatible with 5V and 3.3V main control boards. The output signal filtered by hardware has low jitter. The software library adopts the two-point calibration method and can automatically identify two standard buffer solutions (4.0 and 7.0), making it simple and convenient. With this product, the main control board (such as ARDUINO), and the software library, you can quickly build the pH meter, plug and play, no welding required.
THE PACKAGE INCLUDES
- 1x pH Probe (Laboratory Grade)
- 1x pH Signal Conversion Board
- 1x Gravity Analog Sensor Cable
- 2x pH Standard Buffer Solution 4.0
- 2x pH Standard Buffer Solution 7.0
- 2x Waterproof Gasket
- 1x Screw Cap for BNC Connector
- 4x M3 x10 nylon pillar
- 8x M3 x5 screws
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