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SLOPE UP / DOWN (5, 8) time setting allows the operator to start welding with low current to warm up
the material and finish welding with a decreasing current. Adjust the slope up / down time (5, 8) to set the
time in which current increases / decreases. Slope up starts after releasing the torch button to achieve
main welding current. Current down slope starts after pressing and holding the torch button to extinguish
the arc. In 2T mode the slope up / down setting adjusts the rise / fall from zero to main current.
GAS PRE-FLOW and POST-FLOW time can be set as parameters (3, 10) in tenths of a second. It offers
additional protection with gas until metal cools down.
PULSED CURRENT is available in TIG AC and DC mode and is used for fine work. Ordinary TIG welding is
usually done without pulsed current for materials thicker than 1 mm. Heat input is lower with pulsed
current and work with very thin materials is easier this way. For welding thin metal sheets pulsed current
is used. By pressing button (27) pulsed current is activated. In pulse mode the following special parameters
can be adjusted to user's requirements: frequency (22), pulse current (6), base current (7) and pulse duty
cycle (23). Before starting the welding it is recommended to make tests and trial runs on scarp material.
LIFT-ARC function can be activated via button (11). TIG DC welding can be started without HF arc ignition.
In sensitive environments where high frequency used for arc ignition can cause disturbance it is advisable
to use this function. The arc now starts by touching the workpiece with tungsten electrode.
MMA WELDING
TIG machines offer an option for welding coated electrodes. Connect the earth clamp and electrode holder
to connectors on the power source front panel. Set the welding process (13) to MMA and adjust the
welding current (6) depending on the electrode used and material thickness. Voltage is present on the
electrode as soon as MMA function is active. No-load voltage is lowered to 9 V for safety reasons in delicate
environment. Reduced no-load voltage function is active when green LED marking the MMA process is lit.
When the green LED is flashing there is full voltage present on the machine's output. Arc Force is set at
position (28).
Orientative table of welding parameters depending on the diameter of electrode.
Electrode Ø (mm.)
Rutile E6013
Basic E7018
Inox. E308
Casting E307
Cellulosic E6010
In any case, we recommend you to follow the instructions provided by the electrode manufacturer.
ARC FORCE is an addition to welding current when welding voltage is low. This makes welding possible in
difficult situations when the electrode must penetrate deep in the metal bath. A general rule would be a
higher Arc Force setting when electrode is close to weld-piece, arc is short and welding voltage is low.
HOT START current is set at position (17) and is used to enhance the ignition of coated electrodes.
Current addition to welding current for a short period of time during arc ignition can be set in percentage
of set welding current from 0 – 100 %. At 100 % the arc is ignited with double set welding current. Hot
start current duration is set at position (18) with a time range from 0 – 2 s. Please read the electrode
manufacturer's instructions and set correct polarity before use.
1,6
2,0
30-55 A
45-70 A
50-75 A
60-100 A
25-35 A
30-60 A
20-45 A
30-60 A
37
2,5
3,2
50-100 A
80-130 A
70-120 A
110-150 A
40-80 A
70-100 A
40-80 A
70-100 A
40-80 A
70-120 A
4,0
5,0
120-170 A
150-250 A
140-200 A
190-260 A
90-140 A
80-140 A
90-170 A
100-150 A
140-230 A
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