First, set the 7th bit of address 17 to 0, and input the total value and full scale value of the standard weight prepared for gain adjustment to address 20 and address 07. <br>Note: It is recommended to load the standard weight to more than 80% of the full scale; <br>when the display is stable, press the "CAL" key to enter the calibration mode, and "CAL" will be displayed at this time;
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