Electronic balance and classified according to the accuracy of electronic balance can be divided into the following categories:

1,ultra trace electronic balance:ultra trace the biggest weighing scales is 2 to 5 g,its ruler dividing value is less than (maximum) weighing ten to six,such as the UMT2 Mettler type electronic day equal belongs to the ultra trace electronic balance.

2,trace balance: weighing scales in the trace generally 3 to 50g,the dividing value is less than (maximum) weighing ten-5,such as the AT21 Mettler type electronic balance and Sartoruis S4 type electronic balance.

3,and a half trace balance: half a trace of general scales in weighing 20 to 100 g,the dividing value is less than (maximum) weighing ten-5,such as the AE50 Mettler type electronic balance and Sartoruis M25D type of electronic day equal all belong to such.

4,constant electronic balance: this the biggest weighing scales is in commonly 100 to 200g,the dividing value is less than (maximum) weighing ten-5,such as the ae200s Mettler electronic balance and Sartoruis type of A120S,A200S type electronic day average belongs to the constant electronic balance.

5,analytical balance: in fact electronic analytical balance,is a constant balance,half minim balance,trace balance and ultra trace the floorboard of the balance.

6,precision electronic balance:this kind of electronic balance is the level of accuracy Ⅱ levels of electronic balance collectively.