50173713
Four-stroke:
This symbol means contact-free striking.
The arc is established when the Tungsten
electrode is quite close to the welding
spot (1 or 2 mm). The torch trigger is
activated, the arc is ignited and the trigger
is deactivated. In order to stop the
welding process, the trigger must be
activated again after which the slope-
down period begins. The arc will
extinguish after the period of slope-down
time.
Two-stroke LIFTIG:
This symbol means LIFTIG ignition. The
arc is established when the Tungsten
electrode has contact with the welding
spot. The torch trigger is activated and
must be kept pressed down. The arc is
established by lifting the torch and the
welding process has started. In order to
stop the welding process, the torch trigger
is deactivated. The arc will extinguish after
the period of slope-down time.
Four-stroke LIFTIG:
This symbol means LIFTIG ignition. The
arc is established when the Tungsten
electrode has contact with the welding
spot. The torch trigger is activated and
deactivated. The arc is established by
lifting the torch. In order to stop the
welding process, the torch trigger is
activated and the slope-down period
begins. The arc will extinguish after the
period of slope-down time and the trigger
is deactivated.
Pulse welding
This key pad is used for shift between
welding without pulse and pulse welding.
Base amp, pulse time and base amp time
are adjusted to the requested values
during pulse welding by using the
respective key pads.
Base amp
Base amp is set in per cent (0-100%) in
relation to adjusted welding current I2.
Pulse current is set by using the key pad
normally used for setting of welding
current I .
2
Pulse time
Time for pulse current is adjusted
between 0.003 and 2 sec. A green LED
indicates that the pulse current is
active.
Base amp time
Time for base amp is adjusted between
0.003 and 2 sec. A green LED indicates
that the base current is active.
Slope-down
When welding is stopped by activation of
the trigger, the machine enters into slope-
down. During this period, the current is
decreased linearly to the minimum
current. The length of this period is
indicated in seconds from 0 to 10 secs.
Gas post-flow
The gas post-flow time is the period from
the extinction of the arc to the interruption
of the gas supply. The time is indicated in
seconds from 0 - 30 secs. The time is
adjusted so as to protect the tungsten
electrode and the weld pool against
oxidation.
Current mode control
Internally:
In internal mode, the current is adjusted
by means of the knob below the display.
Torch control:
Adjustment is made by means of the
adjustment knob on the welding torch if
such one exists. The maximum welding
current is adjusted on the knob on the
machine control panel. By means of the
torch adjustment it is possible to adjust
the current range between the minimum
current of the machine and the set
maximum current.
Remote control:
Adjustment by means of foot switch.
The maximum welding current is adjusted
on the knob on the control panel. By
means of the foot switch it is possible to
adjust between minimum current and
the set maximum current.
When the foot switch is connected, the
machine will always be in 2-stroke trigger
mode.
Fixed functions
A number of functions are fixed and cannot be connected or
disconnected from the control panel.
Anti-freeze
The antifreeze function is always active. In MMA or TIG
welding, it may occur that the electrode sticks to the work
piece. The machine will automatically adjust the welding
current to 10 A which makes it easy to break the electrode
off the work piece.
Gas Pre-flow
The gas pre-flow time is the period from activation of the
torch trigger, where gas flow begins, to establishment of the
arc. Time is set to 0.1 sec.
Safety timer
If the arc has not been established after 2 sec., using
contact-free striking in TIG mode, the machine is
automatically reset.
