型号 ZC-7 规格如下:准确度%(10.0)20.0基准值为指示值,相当于原1.0100V/100M ,100V/200M ,100V/500M 250V/250M ,250V/500M ,250V/1000M 500V/500M ,500V/1000M ,500V/2000M 1000V/1000M ,1000V/2000M ,1000V/5000M 准确度%(20.0)50.0相当于原1.52500V/2500M ,2500V/5000M ,2500V/10000M 5000V/5000M ,5000V/10000M ,5000V/20000M