Accuracy : 0.5, Test method : clamp CT input , light and small, test the error of three phase energy meters and field electrical parameters of power grid

Accuracy : 0.2, Test method : terminal input or clamp CT input, test the error of three phase energy meters and feild electrical parameters of power grid

Accuracy : 0.05 / 0.1, Test method : terminal input or clamp CT input, test the error of three phase energy meters and feild electrical parameters of power grid

Accuracy : 0.05 / 0.1, Test method : terminal input or clamp CT , Protection degree : IP67, test the error of three phase energy meters and field electrical parameters of power grid

Accuracy : 0.05 / 0.1, Test method : terminal input , Protection degree : IP67, test the error of three phase energy meters and field electrical parameters of power grid

Accuracy : 0.2 / 0.5, Test method : clamp CT input, Protection degree : IP67, test the error of three phase energy meters and field electrical parameters of power grid

Accuracy : 0.2 /0.3, Test method: clamp CT input, light and small, test the error of single phase energy meters and field electrical parameters of power grid

Accuracy : 0.1 /0.2, Test method: terminal input or clamp CT input, test the error of single phase energy meters and field electrical parameters of power grid