For this problem, you can refer to the following information:
1. Please check if the ground is hard and flat, as uneven ground can have residual effects;
2. To ensure the accuracy of weighing, the scale has a dynamic zero-tracking mechanism;
3. The scale will track zero when the balance screen stops, clear the weight on the scale surface, and return to the zero state;
4. During the use of the scale, if the scale is moved, the zero point will change. After the scale is placed on the ground, a small weight value will be primary on the display screen. At this time, you need to wait 5 seconds to clear the screen, then wake up the scale surface to display 0.0kg before using it.