Sweiss SKYTIG 2033FX Manual De Usuario página 50

can work continuously within a certain time (10 minutes). The rated duty cycle means the proportion
of the time that a machine can work continuously within 10 minutes when it outputs the rated
welding current.
The relation between the duty cycle "X" and the output welding current "I" is shown as the right gure.
If transformer is over-heat, the heat relay inside it will open and will output an instruction to circuit
board, cut AC relay and the output welding current, and brighten the over-heat pilot lamp in the front
panel. At this time, the machine should be relaxed for 15 minutes to cool the fan. When operating the
machine again, the welding output current or the duty cycle should be reduced.
The Relation of welding current duty and cycle for SWT2033
3.3. MMA Welding
Electrode holder
Workpiece
Connection of Output Cables Two sockets are available on this welding machine. For MMA welding the
electrode holder is shown be connected to the positive socket, while the earth lead (work piece) is
connected to the negative socket, this is known as DCEP. However various electrodes require a
di erent polarity for optimum results and careful attention should be paid to the polarity, refer to the
electrode manufacturers information for the correct polarity.
X
100%
60%
35%
0 120
SWT2033
Work clamp
DCEP
12 SWEISSWELD.COM
170 200
SWT2033
Electrode holder
Work clamp
DCEN
I A)
Workpiece