The meter has separable electromagnet and the bearing has four kinds;single-jewel,magnetic thrust and magnetic floating.The case has three kinds;aluminum,plastic and glass.The die-casting frame is alloy aluminum with excellent mechanical strength.

• 该仪表采用分离式铁芯结构，轴承具有单宝石、双宝石、磁推式、磁悬式四种结构，外壳采用铝、塑料和玻璃三种，基架由优质铝合金压铸而成，具有良好的机械强度。