For the purpose prolong the operational life span, overstress is prohibited because the elastic cell is subject to damage, while the elastic cell shall be kept working within its elastic range, so as to ensure the accuracy of measurement.

• 为了延长仪表的使用寿命，避免弹性元件因受力过大而损坏，同时弹性元件应工作在弹性范围内，以保证测量的精度。