Gravity: Analog pH Sensor / Meter Pro Kit V2

SKU: SEN0169-V2 Brand: DFRobot

DFRobot Gravity: Analog pH meter pro V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. It is commonly used in...

$109.95 AUD, inc GST

$99.95 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Mon, 25th of Nov

Quantity Discounts:

5-10 $95.95 (exc GST)
10+ $92.95 (exc GST)

DFRobot Gravity: Analog pH meter pro V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. pH sensors are commonly used in various applications such as aquaponics, aquaculture, and environmental water testing.

As an upgraded version of pH meter pro V1, the secondary generation pH meter pro greatly improves the precision and user experience. The onboard voltage regulator chip is compatible with both 5V and 3.3V logic from the main control board. The output signal is filtered by hardware and 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 calibration simple and convenient. It uses an industry-style electrode and has a built-in simple, convenient, practical connection and long life, very suitable for online monitoring.

This industry-style pH combination electrode is made of a sensitive glass membrane with low impedance. It can be used in a variety of pH measurements with fast-response, good thermal stability, and reproducibility, and nearly eliminates alkali error. Between 0 to 14 pH range, the output voltage of the electrode is linear. The reference system which consists of the Ag/AgCl gel electrolyte salt bridge has a stable half-cell potential and excellent anti-pollution performance. The ring PTFE membrane is not easy to clog, so the electrode is suitable for long-term online detection.

With this product, the main control board (such as an Arduino), and the software library, you can quickly build the pH meter, plug-and-play. DFRobot provides a variety of water quality sensor products, uniform size, and interface, not only meet the needs of various water quality testing but also suitable for the DIY of multi-parameter water quality tester.

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 a solution. pH has a wide range of uses in medicine, chemistry, and agriculture. Usually, the pH is between 0 to 14. Under thermodynamic standard conditions pH is 7, which means the solution is neutral; pH < 7 means the solution is acidic, and pH > 7 means the solution is alkaline.

Attention:

1. The BNC connector and the signal conversion board must be kept dry and clean, otherwise, it will affect the input impedance, resulting in an inaccurate measurement. If it is damp, it needs to be dried carefully to avoid damage.

2. The signal conversion board cannot be directly placed on a wet or semiconductor surface, otherwise, it will also affect the input impedance, resulting in an inaccurate measurement. It is recommended to use the nylon pillar to fix the signal conversion board to allow a certain distance between the signal conversion board and the surface.

3. The sensitive glass bubble in the head of the pH probe is delicate. Any damage or scratches will cause the electrode to fail.

4. After completing a measurement, disconnect the pH probe from the signal conversion board to avoid extended exposure with the sample while power is applied, as this may damage the probe.

SEN0161-V2-Connection

Arduino Connection Diagram

Features

Voltage: 3.3~5.5V
Hardware filtered output signal provides low jitter
Plug-and-play Gravity and BNC connectors
The software library supports two-point calibration and automatically identifies standard buffer solutions at pH 7.0 and 4.0

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
Measurement Accuracy: ±0.1@25°C
Dimension: 42mm x 32mm / 1.66" x 1.26"

pH Probe

Probe Type: Industrial Grade
Detection Range: 0~14
Temperature Range: 0~60°C
Accuracy : ± 0.1pH (at 25°C)
Response Time: <1min
Probe Life: 24/7 > 0.5 years (approximation, depending on the water quality)
Cable Length: 5m

Documents

Parts List

pH Probe (Industrial Grade) x1
pH Signal Conversion Board V2 x1
Gravity Analog Sensor Cable x1
Waterproof Gasket x2
Screw Cap for BNC Connector x1
M3 * 10mm nylon pillar x4
M3 * 5mm screws x8

This product is listed in:

Sensors>Kits
Sensors>pH

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