Connection And Preparation For Mma Welding - Air Liquide SAF-FRO PRESTOMIG 200MP Instruction For Operation And Maintenance

EN
VRD (MMA): ON / OFF
Selection of the Voltage Reduction Device ON or OFF.
If the device is on, in arc mode, the unit powers off at the end of welding to
automatically restart when the electrode gets in touch with the work piece.
As default the device is OFF.
D.M. DIGITAL METER: ON / OFF
Set the digital display ON to view the real voltage and current values while
welding. As default this is ON.
LCD CONTRAST: 30 / 63
Setting of the LCD display contrast according to the environment
temperature and brightness.
UNITS: METERS / INCHES
Select the desired unit of length between meters or inches.
SAVE SETTINGS:
Press the mode button to go back to the welding process screen and
1
save set parameters.
The display shows the screen of the last welding process performed by
the unit.
RESET:
Press button to reset all parameters and go back to the parameters
6
set as default.

CONNECTION AND PREPARATION FOR MMA WELDING

3 - CONNECTION AND PREPARATION FOR MMA
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Press the button
Left setting knob
Adjusts, in the start phase, the welding current increase percentage
variable from 0 to 50% of the set current.
Thanks to an initial peak current, this function makes the welding arc
easier to start (Hot Start).
Right setting knob
Adjust the welding current amps (A) on a range from 5 to 200 amps.
Thicknesses for flat,
butt and fillet welding
NOTE: ADJUST THE WELDING CURRENT ACCORDING TO THE
DIAMETER OF THE ELECTRODE TO BE USED.
6 - EN
WELDING
Connect the earth cable to the negative output terminal on the front
of the unit (see type of electrode).
Connect the work cable to the positive output terminal on the front of
the unit (see type of electrode).
Power the unit ON. The display shows the screen of the last welding
process performed by the unit.
till the MMA Welding Screen is viewed on the display.
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1
3
3
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Electrode diameter
1.6 mm 1.6 mm
2.0 mm 2.0 mm
2.0-3.0 mm 2.5 mm
3.0 – 5.0 mm 3.2
6.0 – 10 mm 4.0 mm
>8 mm 5.0 mm
7
Average intensity for
rutile electrode
40 A
55 A
70 A
110 A
160 A
200 A