Product Description

PH sensor module (electrode + module)

Product introduction

Suitable for 51/Aruduino/STM32

The PH value of solution is an important characteristic of solution. Industrial PH transmitters are expensive. The PH test pen on the market is a mature product, which can not be designed and developed again. The PH composite electrode outputs mv voltage signal, which can not be directly identified and processed by single chip microcomputer. Based on these conditions, we designed this PH sensor module. The module has the advantages of low price, convenient use and high measurement accuracy, and can directly output 0~5V or 0~3V analog voltage signals.

Product parameter

Power supply voltage: 5V

Measuring range: 0-14PH

Accuracy: 0.01 PH(25 "c)

Output voltage of analog signal: 0-5V

PH sensor interface: BNC interface

Temperature sensor interface: XH2.54

Module size: 37mm X 28mm

Measuring temperature: 0-60

Response time: < 1 min

Pin description

Composition of PH sensor module is shown in the following figure. The module is connected with PH composite electrode through BNC connector, and the interface of DS18B20 temperature sensor is expanded, which is convenient for software temperature compensation design. Adjust the knob of 10K blue potentiometer to adjust the magnification (large clockwise and small counterclockwise).

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