TIG (GTAW) Functions
Stick (MMA) PRO Functions
Function
PRE FLOW (1-10 Seconds)
Purpose
Provides shielding gas to the weld zone before striking an arc to prevent porosity and contamination. When using dierent torch cup
setups and long welding cables, the pre-flow can be increased to provide adequate shielding.
Function
START AMPS (10-200 Amps N/A EASY MODES N/A FOOT CONTROL)
Purpose
This parameter is used to set the start current for TIG. In 4T mode the Initial Current remains on until the torch trigger switch is released
aer it has been depressed. In 2T mode this is the Initial Current for the Up Slope current ramp.
Function
UPSLOPE (0-10 Seconds N/A EASY MODES)
Purpose
This parameter is used to set the time for the weld current to ramp up from INITIAL current to BASE current.
Function
WELD AMPS (10-200 Amps)
Purpose
This parameter sets the welding current. In PULSE TIG mode, this parameter sets the PEAK current.
Function
PULSE BASE AMPS (10-200 Amps)
Purpose
In PULSE TIG mode, this parameter sets the BASE current.
Function
DOWNSLOPE (0-10 Seconds N/A EASY MODES)
Purpose
Down Slope will ramp amps “down” from the welding amp value to the end amp value to give time to fill the crater le at the end of the
weld bead. Can also be used in the 4T mode to help with heat control by briefly tapping the switch to cool o the weld before tapping it
again to restart the up slope sequence before the arc reaches the end amp stage.
Function
END AMPS (10-200 Amps N/A EASY MODES N/A FOOT CONTROL)
Purpose
Sets the final or minimum current before the arc is terminated. Used for filling craters at the ends of the weld and crack prevention.
Function
PULSE TIME ON (10-90% NA EASY MODES)
Purpose
The pulse consists of two stages: Welding amps (upper /Peak) and Pulse amps (lower/background current). This is represented by a % of
total time the pulse spends in the pulse amp stage of the cycle during one full pulse. The feature can be used to increase or decrease
pulse amp time relative to the welding amp time of the cycle to help manage heat input.
Function
HOT START (0-60 Amps)
Purpose
Sets the starting amps to reduce sticking of the electrode during the arc strike phase.
Stick (MMA) AUTO Functions
Function
ELEC DIA (2-5mm)
Purpose
Machine automatically adjusts amps relevant to the diameter of electrode being used.
Function
Amps Fine Tuning (-20-20%)
Purpose
Fine tunes the amps for the metal being welded.
Function
WELD AMPS (10-200 Amps)
Purpose
Welding amps define the top limit of amps at which the machine has been programmed to operate.
Function
ARC FORCE (0-99%)
Purpose
Controls the arc response when an arc is held short and voltage begins to drop. Arc force automatically compensates by modifying the
volt/amp curve to maintain the energy needed to weld. Represented as a percent of available arc force amperage.
Function
PULSE FREQUENCY (1-500Hz NA EASY MODES)
Purpose
Represented by Hertz (Hz), the pulse frequency defines the actual number of times each second the pulse makes one complete cycle
between welding amps (peak/high amp value) and pulse amps (background/low amp value).
This is also commonly referred to as Pulses Per Second (PPS). Low pulse frequencies are ideal for timing the point where filler metal is
added. This helps improve appearance and uniformity. Higher pulse frequencies are useful for welding seams and edges of thin material
and for better penetration on thicker metals.
Function
HF ON/OFF
Purpose
HF - High Frequency Start which allows non contact starting of the arc or when o (li tig) requires contact with the metal to initiate the
arc (for AC and DC). (HF is selected when symbol is not striked out) The li start function on the ALUMTIG 200 provides a cold electrode
for safety, and prevents accidental starts.
Function
AC BALANCE (50-98% NA EASY MODES)
Purpose
Controls arc cleaning action when welding on AC. Adjusting the % electrode negative (EN) AC wave controls the width of the cleaning
zone surrounding the weld. Lower percentage AC balance more cleaning action but less penetration. Higher percentage AC balance less
cleaning action but more penetration. PRO TIP: Typically a range between 65% - 75% is used.
Function
AC FREQUENCY (50-98% NA EASY MODES)
Purpose
Governs the number of times per second that the current alternates in AC mode. To achieve greater arc focus (constriction) and increase
puddle agitation while welding in AC mode, increase AC frequency. This allows pinpoint use on thin materials, and helps penetration on
thicker materials. Ideal adjustment range is usually between 80-120Hertz. For comparison most transformer welders operate on 60 Hz.
Greater arc control and stability can be achieved through the higher frequency range oered by this welder. Lower Frequencies will
widen and soen the arc and reduce the level of control.
Function
2T, 4T, TACK CONTROL (0.1 - 10 Seconds)
Purpose
2T MODE: Press and hold the switch. The program will cycle automatically. When the switch is released, the arc will
downslope and terminate with post gas flow.
4T MODE: Switch is pressed and held to start the pre-flow then start amps part of the cycle. When released, upslope
begins and continues until the amps are raised to the preset welding amps. When pressed and held again,
downslope starts and ramps down to the end amp stage. If released before downslope ends program will cycle to main amps if released
aer downslope ends the arc terminates, and post flow begins.
TACK CONTROL: Select this mode to control the arc on time for precision tack welds.
