准确度等级
最大允许误差
精确度等级
0.1
±0.1%
1.0
±1.0%
0.2
±0.2%
1.5
±1.5%
0.3
±0.3%
2.0
±2.0%
0.5
±0.5%
(2.5)
(±2.5%)