Descriptions:
The pH of the solution (pH) is an important property of the solution. Industrial grade PH transmitters are expensive; the PH test pens on the market are mature products that cannot be used for secondary design development; P composite electrodes output mV-level voltage signals, and the microcontroller cannot directly identify and process them. Based on these conditions, we have designed this. PH sensor module. This sensor is low in price, easy to use, high in measurement accuracy, and can directly output 0~5V or 0~3V analog voltage signals.
Parameter:
1>.Working voltage: 5V
2>.Measuring range: 0-14PH
3>.Measuring temperature: 0-60°
4>.Accuracy: ±0.01PH (25°)
5>.Response time: less than 1minute
6>.PH sensor interface: BNC interface
7>.Temperature sensor interface: XH2.54-3P
Pin definition:
1>.VCC:Supply voltage positive, 5V
2>.GND:Supply voltage negative
3>.GND:Analog signal output negative
4>.PO:Analog signal output positive.Output range is 0V-5V.
5>.2V5:Reference voltage 2.5V output
6>.T1:Temperature sensor DS18B20 signal output port
1.