Name

precision

normal specification

remark

AC ammeter

A

1.5

0.5-50A

can be directly connected

A

1.5

10/5A-800/5A

KA

1.5

1KA-10KA

AC voltmeter

V

1.5

10V-600V

can be directly connected

KV

1.5

1KV-35KV

100V secondary voltage passed by voltage transformer

DC ammeter

µA mA

2.5

50μA-500μA 1mA-500mA

A

1.5

1A-15A

can be directly connected

A

1.5

15A-750A

 outer attached shunt 75mV 60mV 50mV

KA

1.5

1KA-3KA

outer attached shunt 75mV 60mV 50mV

DC voltmeter

V

1.5

3V-600V

can be directly connected

KV

1.5

1KV-3KV

outer attached resistance value

Hz meter

Hz

2.5

45-55HZ 55-65HZ

36V.100V.127V.220V.380V

Power meter

KW.VAR

2.5

100V 380V 380-380KV

100V secondary voltage passed by voltage ; Secondary current passed by current transformer 5-10KA/5A

cosφ meter

cosφ

2.5

COSφ =0.5-1-0.5

100V/5A 220V/5A 380V/5A