... specification but different constant. The multi-type meters such as single-phase mechanical, electromechanical and electronic meters can be tested simultaneously ... , 0.22) Model: DZ601-33) Equipped with high precision single phase reference standard meter4) The maximum output current: 120A; ranges ... : 0.1A, 0.5A, 1.0A, 2.5A, 5A, 10A, 20A, 50A, 100A5) Output voltage: ...