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TIG
The electrode burns
quickly in TIG welding.
The output polarity connection is
incorrect.
Exchange the polarity.
The cleaning strength is too big in AC
mode.
Reduce the cleaning strength.
Black weld bead
The weld bead is not well protected and is
oxidized.
Make sure the gas valve of the cylinder is open and the
pressure inside the cylinder is high enough. Generally,
it is necessary to refill the cylinder when the pressure is
lower than 0.5MPa.
Check if the gas flow is normal. You may select
different gas flow according different welding current.
However low the current is, the gas flow is
recommended to be not less than 5L/min. Otherwise,
the weld bead may not be fully covered for lack of
shielded gas.
Check if the gas path is airproof and if the gas is pure
enough.
Check if the environment is with strong wind.
Arc is hard to start but
easy to break.
The electrode you use is of poor quality or
is badly oxidized.
Replace it with electrode of better quality.
Remove the oxidized layer of the electrode.
Prolong the post-flow time to avoid oxidization of
the electrode.
Adjust the spark gap on the discharge board to
about 1.0mm.
Unstable current during
welding
Mains voltage fluctuates badly, or the
input cable is loosely connected with
the mains power supply.
Check the mains power supply for normal state,
and reconnect the power cord.
There is serious interference from
other electric appliances
Do not connect the machine to the power cord
which is connected to other electric appliances of
serious interference.
Other malfunction
Contact the service center of our company.
8.2 Alarm & solution
Type
Alarm
Automatic
response
Cause
Solution
Overcurrent
Overcurrent LED
glitters and there
are alarm beeps.
Cut off the
main circuit
permanently.
Load current is too
high, or overcurrent
protection of main
power unit occurs.
Restart the machine. If the problem remains,
shut down the machine and contact the
maintenance professionals.
Undervoltage
Overvoltage/
undervoltage
LED glitters and
there are alarm
beeps.
Cut off the
main circuit
temporarily.
The mains voltage
is below 280VAC.
Problem will be automatically eliminated
when the mains power supply recovers, and
welding can be continued. If under-voltage
sustains, ask the electrician to check the 3-
phase power. Welding cannot be carried out
until the mains power supply recovers. If the
mains voltage is normal, but alarm beeps still
exist, contact the maintenance professionals.
Overheating
Overheating LED
glitters and there
are alarm beeps.
Cut off the
main circuit
temporarily.
Excessive work of
the main circuit
It is unnecessary to shut down the machine,
but just wait for the overheating LED to go
off, and then welding can be continued.
Smart 310 TIG Pulse AC/DC
Summary of Contents for Smart 310 TIG Pulse AC/DC
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