1.Power energy measurement: ±0.1%（built-in transformer）±0.2%（split transformer）

2.Rated voltage: 0V~400V  20% overflow are not allowed 

3..Rated current: built-in transformer 0~10A, Split type transformer: 20A or 100A、500A、1000A、2000A（optional）20% overflow are not allowed

4.AC voltage RMS accuracy: ±0.1%

5.AC current RMS accuracy: ±0.1%（split transformer:±0.2%） 

6.Active power: ±0.1%（split transformer:±0.2%）

7.Reactive power: ±0.3%（split transformer:±1.0%）

8.Frequency measurement: 45Hz-65Hz (±0.01Hz)

9.Angle measurement: 0°-360°(±0.1°)

10.Constant of impulse: 

1）0low frequency FL=6400P∕kw·h 

2）High frequency FH=6400×8P∕kw·h

11.Power supply: DC 8.4V ±10%

12.Power consumption: 8VA

13.Dielectric strength: 

1) the insulating resistance of voltage, current input terminal to case≥100MΩ

2) the input terminal of the working power can stand 1.5kV (RMS) to case, time is 1 minute

14.Work temperature: -15℃~60℃

15.Relative humidity: 0%~90%

16.Warm-up time: 1 minute

17.Weight: 2.0KG  32×24×13cm