Ronch Ronch Weld 315MAX, User Manual

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15
• 4.2. Welding current adjustment
Adjustment knob position multi circle potentiometer, next to no mark
the specific welding current value size, clockwise rotation set value
increased.
Welding current range is 10
～
315A.
MMA- series
（
discrete
）
has the function of welding current pre-
setting. Before welding, adjusting welding current, the welding current
display will show the ampere. It is convenient to set parameters and
adjust accurately.
• 4.3. Arc force adjustment
Refer to §2.4 section of volt-ampere characteristic graph (under 20V graph part), when the MMA-
315 load voltage is under 20V, there is arc force output. The arc length is shorter, the arc force is
bigger. It can prevent sticking and increase the depth of penetration.
When the arc force LED is on, you can use adjustment knob to set the arc force, the arc force
(0~10) will be displayed on the digital tube.
The number “0~10”on the digital tube is not actual arc force, but a proportion concept.
When the digital tube shows “0” (the minimum of the arc force), the operation of arc force is not
in use.
Operation remark
On the digital tube of 0 (soft arc), application range: acid electrode; in
the middle & high current, using basic electrode.
On the digital tube of 10 (hard arc), application range: welding in the low
current range
（
vertical up welding, surfacing welding, overhead
welding, etc.
）
Increase the arc force:
Easy to striking arc;
Increase spatter
Good root meltability
In welding thin plate, increase the dangers of penetration.
Welding position
Flat welding
for flat plate
butt joint
Vertical
welding for
flat plate butt
joint Horizontal fix
welding for
pipe butt
joint Vertical fix
welding for
pipe butt
joint
Workpiece thickness/mm 8
～
12 8
～
12 Ф114×7 Ф114×7
Continuous
welding
Gap/mm 2.5
～
3.2 2.5
～
3.2 2.5
～
3.2 2.5
Root face size
/mm
～ ～ ～ ～