Tweco 300Pi Transtig Welding Inverter - Manual (Page 32)

TRANSTIG 300Pi
INSTALLATION, OPERATION AND SETUP 3-14 Manual 0-5309
Crater Current
This parameter operates in TIG modes
only.
In 2T mode this is the current at the
end of the down slope current ramp.
When the welding current reaches
the Crater Current value, the welding
current will cease and the unit will
enter Post Flow mode.
In 4T mode, this is the current at the
end of the down slope current ramp.
The welding current will remain at the
Crater Current value until the torch
trigger is released, at which time the
welding current will cease and the unit
will enter Post Flow mode.
Range is 5 to 315A. Factory default
is 30A.
(Pulse)
A-12112
Post Flow
This parameter operates in TIG
modes only and is used to adjust the
post gas flow time once the arc has
extinguished. This control is used to
dramatically reduce oxidation of the
tungsten electrode.
Range is 0.0 to 30.0 seconds. Factory
default is 5.0 seconds.
(Pulse)
A-12113
3.08 Setup for Manual Arc (MMAW) Welding
A. Connect the Electrode Holder lead to the positive welding terminal (+). If in doubt, consult the electrode
manufacturer. Welding current flows from the Power Source via heavy duty bayonet type terminals. It is
essential, however, that the male plug is inserted and turned securely to achieve a sound electrical connection.
B. Connect the work lead to the negative welding terminal (-). If in doubt, consult the electrode manufacturer.
Welding current flows from the power source via heavy duty bayonet type terminals. It is essential, however,
that the male plug is inserted and turned securely to achieve a sound electrical connection.
!
WARNING
Before connecting the work clamp to the work and inserting the electrode in the electrode holder
make sure the mains power supply is switched off.
CAUTION
Remove any packaging material prior to use. Do not block the air vents at the front or rear of the
Welding Power Source.
Loose welding terminal connections can cause overheating and result in the male plug being
fused.