EasyTig Easytig 200AC/DC Operation Manual - page 7
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A. Exchange switch:
1. ARC/TIG exchange switch:
Place the switch on “ARC”; it’s for MMA welding;
Place the switch on “TIG”, it’s for AC or DC Tig welding.
2. AC/DC Exchange switch:
Place the switch on “AC”; it’s in AC mode for welding aluminum;
Place the switch on “DC”; it’s in DC mode for welding non-rusty steel.
3. 2T/4T switch (Optional):
Place the switch on “2T”, its short welding. that’s, when you press the
button, there is current output, and when press it again, it stops; as for
“4T”, when you first press it, there is current out, and press it again,
there is still current out; press the third time, the current output stops.
So it’s called long welding.
4. DC/PULSE (Optional):
When the switch is at DC TIG, press it at PULSE, and there is DC pulse
current out.
B. Adjustment switch:
1. Pre-flow time switch:
To guarantee the welding efficiency, gas is before current, this switch is
to adjust the time between gas and current.
2. Current time switch:
It’s for current adjustment, and changes the volume of the current.
3. Clear width switch:
In AC TIG welding, the current exchanges between positive and
negative directions, when Current is from tungsten to work piece, its
positive direction and tungsten heats little, convenient for welding;
while if current is from work piece to tungsten, it’s negative and good
for removing the oxidization coating on the surface of the work piece,
but the tungsten may be easily damaged because of overheat. This
switch is for adjusting the current time between positive and negative.
When it’s at the middle ,the proportion is 50% ;at the maximum is 80%;
at the minimum ,20%.If in clockwise direction, the positive current time
turns longer and negative one shorter; and vice versa.
Re: Big current, low clear width; e.g.>200A, the clear width<30%.
Little current, high clear width; e.g. <100A, the clear width>50%.
4. Slope-down switch:
After finishing welding, at the crater time, the current is required to
reduce gradually until it stops, and this switch is to adjust the reducing
time.
Re: If use “foot switch”, this switch is adjusted to “0” in
counterclockwise direction.
5. Post-flow time switch:
The work piece may be oxidized because of heat, so it needs to cool
with the welding gas for some time as long as b 0 seconds, this switch
is for adjusting the post-flow time.