Mma Welding; Very Important - WELDKAR WK TIG 2025 AC/DC Pulse Mode D'emploi

16. Multifunction Control
The multifunction control knob is used to adjust welding
current. It is also used to adjust parameters when in
programming mode.
17. Back Programming Button
Pressing this button will go back to the previous step in
the programming sequence.
18. LIFT TIG en HF TIG parameter settings
These indicator lights will illuminate when programming.
Press FORWARD (15) or BACK (17) to cycle through
available programming functions. Use the Multi Function
Control Knob (16) to adjust the parameter selected.
D
C
B
A
L
A. Gas pre-flow time: 0.1 – 10.0 seconds
Gas output time before welding starts.
B. Starting current (only with 4T):
10 – 200 A (AC) / 5 – 200 A (DC)
This parameter is used to set the start current for TIG.
The Start Current remains 'ON' until the torch trigger
switch is released after it has been depressed.
C. Upslope time: 0.0 – 10.0 seconds
This is the time in which the current, beginning from the
minimum, reaches the set current value.
D. Welding current:
10 – 200 A (AC) / 5 – 200 A (DC)
This parameters sets the welding current.
E. Welding current (operates in Pulse mode
only):
10 – 200 A (AC) / 5 – 200 A (DC)
This parameters sets the welding current.
F . Pulse Width (operates in Pulse mode only):
5 – 100%
This parameter sets the percentage on time of the Pulse
frequency for weld current.
G. Pulse frequency (operates in Pulse mode
only):
0.5 – 200 Hz
For setting the Pulse frequency.
H. Low current (operates in Pulse mode only):
10 – 200 A (AC) / 5 – 200 A (DC)
For setting the lowest point in the pulse.
I. Downslope time: 0.0 – 10.0 seconden
This is the time in which the current reaches the
minimum value and the arc shuts down.
J. Crater current (only with 4T):
10 – 200 A (AC) / 5 – 200 A (DC)
This parameter is used to set the finish current for TIG.
The Crater Current remains 'ON' until the torch trigger
switch is released after it has been depressed.
K. Gas post-flow time: 0.0 – 10.0 seconds
This parameters is used to adjust the post gas flow time
once the arc has extinguished.
L. AC frequency: 50 – 150 Hz
This indicator light will illuminate when programming
AC Frequency (AC HF TIG mode only).
E
F
I
H
J
G
K
M
M. Balance: 15 – 50%
This indicator light will illuminate when programming
BALANCE (AC HF TIG mode only).
BALANCE is used for aluminium welding in AC HF
TIG or AC LIFT TIG mode. It is used to set the ratio of
penetration to cleaning action for the AC TIG welding
arc. Maximum weld penetration is achieved when the
BALANCE is set to 15%. Maximum cleaning of heavily
oxidised aluminium or magnesium alloys is achieved
when the BALANCE is set to 50%.
19. 2T or 4T mode selection Button (LIFT TIG
and HF TIG Mode only)
- TIG 2T; In this mode, the torch trigger must remain
depressed.
- TIG 4T; This mode of welding is mainly used for
long welding runs to reduce operator fatigue. In this
mode the operator can press and release the torch
trigger and the output will remain active. To shut off
the arc, the trigger switch must again be depressed
and released, thus eliminating the need for the
operator to hold the torch trigger.
20. Gas test (LIFT TIG and HF TIG Mode only)
Press and hold the Gas test button to purge the gas line
in LIFT TIG and HF TIG modes. To purge the
shielding gas line in LIFT TIG and HF TIG modes press
the Gas test button and release. The indicator will
illuminate and shielding gas will purge for a preset
period of 15 seconds. (This cannot be adjusted). To stop
shielding gas from purging within this time press the
Gas test button and release and the purge indicator
will extinguish and shielding gas will cease.
21. HF (high-frequency) ignition button (TIG
mode only)
Press the HF button to toggle high-frequency ignition
On and OFF in TIG modes.
22. PULSE button (LIFT TIG and HF TIG Mode
only)
Press the PULSE button to toggle Pulse On and OFF in
LIFT TIG and HF TIG modes.

3.2 MMA WELDING

- This welding machine is suitable for welding all
types of electrodes, with the exception of cellulosic.
- Make sure that the switch (5) is in position 0, then
connect the welding cables, matching the polarity
required by the manufacturer of the electrodes you
will be using.

VERY IMPORTANT:

Connect the terminal of the grounding cable to the
workpiece, making sure that contact is good to ensure
smooth equipment operation and avoid voltage dips with
the workpiece.
- Connect the grounding cable to the Negative output
terminal (3).
- Connect the Electrode Holder lead to the Positive
output terminal (1).
- Make sure that the supply voltage matches the
voltage of the welding machine.
- Do not touch the torch or electrode clamp
simultaneously with the mass terminal.
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