The balance is designed and manufactured based on the “electromagnetic force equilibrium principle” .Among of the numerous factors which has an effect on the precision, the earth gravity effect is the most prominent. The different areas and different earth gravity will cause the measuring error. In this case the balance should be calibrated to eliminate these errors.

After the use for long time, there will be subtle error caused by the temperature, humidity, placing and operation. So the balance must be recalibrated and adjust its level.

If you use the new balance or after changing the locating place of the balance, you have to adjust the level and recalibrate it.