FUNCTION GUIDE
Control
Function
Explanation
Pre-Flow
Gas Time
Controls the length of time that the
shielding gas flows before the arc is
started.
Allows sufficient shielding gas to be
present in the weld area to avoid any
contamination in the welding puddle.
Start
Current
Control
Controls the power output amps that
the arc will start and strike in at.
The size and type of tungsten electrode
used will determine the optimum start
current level. 1.0mm electrodes will
require a minimum of 10amps, 2.4mm
20amps and for larger sizes the current
would be increased as required.
Lift TIG
Start
Operation
Provides a method of starting the arc
without the use of HF.
Allows the arc to be established by
touching the electrode on the work piece
and then lifting away avoiding the
necessity to scratch the electrode and
reduces the potential for the electrode to
stick down and contaminate.
HFTIG
Start
Operation
Provides method of starting the arc
using a high frequency generated
spark.
Allows the arc to be established without
the necessity of touching the electrode
on the work piece. A high voltage spark
jumps from the electrode to the work
piece, ionising the shielding gas allowing
the arc to establish.
Up-Slope
Timer
Controls the time the arc takes to ramp
up from the start current setting to the
selected main welding output current.
Allows the welding current to be gently
increased in the weld puddle.
Pulse
Mode
Selection
If turned to minimum the pulse is
switched off. If a current level is
selected the machine will pulse
between the level selected and the
current level displayed on the main amp
display meter.
Allows a controllable high current level
to be used for the welding application
without the risk of burn through. It also
allows for a wide weld bead to be
completed on thin gauge material.
Base Pulse
Time
Controls the time that the base
current selected is operational.
Allows the base / low current pulse time
to be adjusted so that burn through or
excessive current is not used in the
welding application.
Peak Pulse
Time
Controls the time that the peak / main
current selected is operational.
Allows the main / high pulse current time
to be adjusted so that optimum weld
penetration is maintained during the
welding application.
Down-
Slope
Time
Controls the time the arc takes to ramp
down from the main welding current to
the crater / final current if selected or to
switch off.
Allows the weld current to be gently
reduced as required allowing weld
overlaps to be completed without excess
weld bead material build up.
Crater
Current
Control
When a crater current level is
selected the weld output will ramp down
to the selected level at the end of the
weld sequence.
To maintain the arc at the end of the
weld sequence allowing welds to be
completed right up to the edge of the
component.
10
10
24pp A5 Instruction Manual.indd 13
28/9/06 3:33:13 pm