The Dera welding machine DK-ZX7-200A is a model of a compact, portable DC Inverter Stick Welder (MMA/ARC).1 The nomenclature is typical for this class of affordable, highly functional machines: DK-ZX7: Refers to the series or chassis type (ZX7 being a common code for a DC MMA inverter). 200A: Indicates the maximum claimed output current of $200 text{ Amperes}$.




