1.Connection of Input Cables
11. Pre-flow Gas Timer:
Provides pre-flow gas to purge tig torch
gas line prior to the initialization of the arc.
Adjustment is 0-2sec.
12. Welding Current Control:
For adjustment and setting of the main
welding current.
13. Base Current Control:
(Available Pulse Model Only) For the
adjustment and setting of the base current
in Pulse mode.
The set value is a percentage of the main
welding current.
14. Down Slope Control:
Approaching the end of the weld time the
welding current can be reduced gradually
until it stops, this prevents craters and pin
holes and is referred to as “down slope”.
This dial is for the adjustment and setting
of the down slope time.
Adjustment is 0-10sec.
Note: When using the remote foot control
set the dial to “0”.
15.Arc Force Control:
(Available Pulse Model Only). Applies
only in MMA mode. This dial adjusts the
characteristic of the welding arc from
forceful arc at maximum to soft arc at
minimum.
16.Pulse Frequency Control:
(Available Pulse Model Only). This dial is
for the adjustment and setting of the pulse
frequency when the machine is set in
Pulse mode.
Adjustment is 0.5-300Hz.
17. Pulse Width:
(Available Pulse Model Only). This dial
is for the adjustment and setting of the
on time of the peak current (pulse width)
when the machine is set in Pulse mode.
Adjustment is 10% – 90%.
18. AC Balance Control:
In AC TIG welding, the current exchanges
between positive and negative directions.
When current flow is from tungsten to
work piece it is in a positive (+) direction,
the arc energy is stronger at the tungsten
and is good for removing the oxidized sur-
face of the work piece. However too much
+ current flow can drive too much energy
to the tungsten causing it to overheat and
melt the tungsten electrode.
When the current flow is from work piece
to
tungsten it is in a negative (-) direction,
the arc energy is greater at the work
piece providing better penetration and the
tungsten heats up less. The arc stability
is good and ideal for most AC welding
situations.
The dial is for adjusting the current flow
time
between positive and negative. When set
at the
middle the proportion is 50%. When set
at the maximum it is 80% and at the mini-
mum it is 20%. Adjusted in a clockwise
direction, the positive
current flow time is longer and negative
flow is less, and vice versa.
19. Post Flow Gas Timer:
This dial provides an after flow of gas
when the welding arc is extinguished.
Post flow gas prevents contamination of
the molten pool and tungsten
electrode during cool down cycle.
Adjustment 0-10sec.
INSTALLATION & OPERATION
