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6. Operation
6.4.3 Duty cycle
CAUTION
• If the declared time or current values of the duty cycle are exceeded, the engine driven welder
could be irreparably damaged.
The duty cycle is the percentage of time for which it is possible to weld, at the declared welding current, in a
10 minute period.
For instance, a 60% duty or service cycle, with declared current of 200A, indicates that it is possible to weld
for 6 minutes with a maximum welding current of 200A, and that in the next 4 minutes it is necessary to let
the engine driven welder run without taking welding current.
6.4.4 Welding arc striking
• When the machine runs without load and with the engine running at idle speed, there may be a slight
delay in the ignition of the electrodes, due to the low no-load voltage of the engine driven welder.
• Always ensure a good metal-to-metal contact between the metal core of the electrode and the work-
piece.
• After the electric arc is interrupted, the tip of the electrode forms a cone.
To use the same electrode in welding operations, it may be necessary to remove the cone to allow the
metal core of the electrode to make contact.
6.4.5 Simultaneous use of welding and auxiliary generation functions
The declared welding currents refer to the absence of electrical power supplied; similarly, the declared elec-
trical power refers to the absence of welding current supplied.
If welding and auxiliary generation are used simultaneously, refer to the operating limits for the engine driven
welder, shown in the following table.
MAGIC WELD 200
Welding current range
≥175A 150A 125A 100A 75A 0A
230V generation power 0kVA 1kVA 2kVA 2.7kVA 3kVA 3kVA
110V generation power 0kVA 1kVA 1.8kVA 1.8kVA 1.8kVA 1.8kVA
MAGIC WELD 250
Welding current range
≥200A 175A 150A 125A 100A 0A
230V generation power 0kVA 1kVA 2kVA 2.7kVA 3kVA 3kVA
110V generation power 0kVA 1kVA 1.8kVA 1.8kVA 1.8kVA 1.8kVA
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