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13.0 Troubleshooting and Fault Finding
13.1 Environment
Note: The power source should not be used in rain or
snow environment.
The recommended external environment for
welding is as follows:
Please place the power source in a horizontal
•
position. The inclination of the power source
shall not exceed 10°.
The environment where the equipment is
•
stored should be clean and protected from sand
and dust.
Dust, acids, corrosive gases or substances in the
•
surrounding air must not exceed normal levels,
except those produced by the welding process.
The environment where the equipment is
•
stored needs to be dry. The air relative humidity
requirements are as follows:
Reasons
1
Arc starting is difficult and easy
to break.
2
Output current not to rated value 1 If using an extra-long cable, the output voltage will decrease,
3
Excessive spatter
The environment where the equipment is
•
placed should not be surrounded by heat, fire
and welding spatter. The ambient temperature
requirements are as follows:
13.2 Problems During MMA Welding
Fittings, welding materials, environmental factors,
supply power, length of extension cables, use
of generators may influence the performance of
the welder.
Solution
1 Check the condition of the electrode.
2 If the electrode is not dry, it will cause an unstable arc, and
possibly lead to welding defects.
adjust cable to a shorter length.
1 Selected current is too high or electrode diameter is
too small.
2 Check that the correct polarity has been selected.
No more than 50% at 40°C.
No more than 90% at 20°C
During welding: -10°C ~ +40°C.
During transportation and storage:
-20°C ~ +55°C.
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