13
When the trigger mode is in the 4 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, after a 0.5 seconds 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 be at start (min) current
This condition can be maintained as long as required.
Release the tig torch switch to go to step 2
The machine will now increase output to base (main) current in time set by slope-up.
Press and hold the tig torch switch when main weld is complete
The machine will now decrease the welding output current to finish (min) in down-slope
time set. Once at finish (min) output you can release the Tig torch switch to end weld the
gas post-flow will continue to run for set time.
9.
Gas post flow adjustment
Adjustable from 1 – 10 seconds. The gas keeps flowing after weld has finished, this cools &
stops tungsten from getting contaminated. Note: Gas pre-flow time is fixed at 0.5 seconds
in TIG mode but no pre-flow time will occur if the arc is restarted during post flow time as
gas is already flowing.
10.
Base current control (Pulse min current adjustment
)
This sets pulse minimum base amperage.
I.E if base current is set to 70amps and Main current is set to 105 amps, the machine will