Gravity: Analog pH Sensor/Meter Kit V2

As an upgraded version of the V1 meter, it greatly improves accuracy and user experience. The on-board voltage regulator chip supports the wide voltage supply of 3.3~5.5V, which is compatible with 5V and 3.3V main control board. The hardware filtered output signal has low jitter. The software library adopts two-point calibration method, and can automatically identify two standard buffer solutions (4.0 and 7.0), so simple and convenient.

Attention ：

• The BNC connector and signal conversion board should be kept dry and clean, otherwise it will affect the input impedance, resulting in inaccurate measurement. If it is wet, it needs to be dried.
• The signal conversion board cannot be placed directly on a wet or semi-conducting surface, otherwise it will affect the input impedance, resulting in inaccurate measurement. It is recommended to use the nylon pillar to fix the signal conversion board, leave a certain distance between the signal conversion board and the surface.
• The sensitive glass bubble in the head of the pH probe should avoid contact with the hard material. Any damage or scratches will cause the electrode to fail.
• After completing the measurement, disconnect the pH probe from the signal conversion board. The probe of the analogue pH sensor must not be connected to the signal conversion board without the power supply for a long time.
• Under standard thermodynamic conditions, pH=7, means the solution is neutral; pH<7, means the solution is acidic; pH>7, means the solution is alkaline.

Characteristics :

• 3.3~5.5V wide voltage input.
• Hardware filtered output signal, low jitter
• Gravity connector and BNC connector, plug and play, solder free
• Software library supports two-point calibration and automatically identifies standard buffer solution
• Uniform size and connector, suitable for mechanical structure design

Specifications :

• Gravity : Analogue pH sensor/meter kit V2 TECHNICAL SPECIFICATIONS.
• Signal conversion board (transmitter) V2
• Supply voltage: 3.3~5.5V
• Output voltage: 0~3.0V
• Probe connector: BNC
• Signal connector: PH2.0-3P
• Measuring accuracy: ±0.1@25℃
• Dimensión: 42mm*32mm/1.66*1.26in
• pH probe
• Probe type: Laboratory grade
• Detection range: 0~14
• Temperature range: 5~60°C
• Zero point: 7±0.5
• Response time: <2min
• Internal resistance: <250MΩ
• Probe life: >0.5 years (depending on frequency of use)
• Cable length: 100cm

Interesting links :

• Product page

Included :

• pH probe (lab grade) x1
• pH signal conversion board x1
• Analogue gravity sensor cable x1
• pH 4.0 Standard Buffer Solution x2
• pH 7.0 Standard Buffer Solution x2
• Sealing gasket x2
• Screw cap for BNC connector x1
• Nylon abutment M3 * 10 x4
• M3 * 5 screws x8