13
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 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 peak
(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 – 25 seconds. The gas keeps flowing after weld has finished, this cools &
stops tungsten from getting contaminated.
10.
Base current control (Pulse min current adjustment
)
This sets pulse minimum base amperage as % of main amperage I.E if peak current is set
to 100amps and base current % is set to 40%, the machine will switch between 100amps
and 40amps at the frequency/width as set by fig 4.4 and 4.5 - When using foot pedal the
base and pulse will adjust from pedal - Note LED will show average amperage in when
using foot pedal with pulse when actually welding.
11. Warning LED
When you turn machine on the LED will light green and then go out once machine has run
start-up self-diagnostics.
If LED turns orange during operation, you have exceeded the duty cycle, allow machine to
cool down, light will go off and you will be able to weld again.
If LED turns green during operation, the machine has sensed overload / under voltage.
Turn machine off and call R-Tech technical dept.
12. Power LED
Lights up when machine is switched on.
