Y532-A Digital pH sensor calibration

Writer： admin Time：2023-12-06 15:49:42 Browse：159℃

Y532-A Digital pH sensor calibration

Required equipments and raw materials
Required equipments: four 1000mL beakers, one set of gloves.
Raw materials: three pH standard liquid powders and deionized water.

Calibration steps
There are three methods of user calibration for the pH sensor: 3-points calibration.
3-point calibration was done in 4.01、6.86、9.18 standard solution.

3-points calibration step

Connection method of connecting RS485 to USB connector: the red wire connects the positive terminal of the power supply, the black wire connects the negative terminal of the power supply, the green wire connects the A of the RS485 interface, the white wire connects the B of the RS485 interface, as shown in the following figure.