12
6. TIG mode switch with pulse
Sets machine to TIG (GTAW) with pulse on.
7. TIG mode switch without pulse - (Standard TIG mode)
Sets machine to TIG (GTAW) with pulse off.
8. 2/4 Way selector switch
2/4 Step trigger mode switch – TIG welding can either be done in 2 or 4 step mode
When the trigger mode is in the 2 step position the following sequence will occur
Press and hold the TIG torch switch to start sequence.
The machine will open gas valve to start flow of shield gas as per the set pre-flow time to
purge air from torch hose the welding output of machine will be turned on and the arc will
be started. After the arc is started the output current will increase from the start (min)
current to base (main) current in time selected by slope-up.
Release the TIG torch switch to end sequence.
The machine will now decrease output to finish (min) current in time set by slope-down,
once at finish (min) current the machine will stop output and the gas valve will continue to
operate for the selected time (post flow)
Possible variations of this standard sequence are shown in diagram below. It is possible to
press and hold TIG torch switch a second time during down slope time to restart. After the
switch is pressed the output current will raise to base (main) current
When the trigger mode is in the 4 step position the following sequence will occur
