Elettro SYNERGIC MIG 4150 Manuel D'instructions page 9

and the post-gas time.
M - N- Keys.
• When the LED A is lit, the display
L
selected by the 2 keys. Once the
selection has been completed the
LED remains lit for 5 more seconds, then shuts off.
• When the LED B is lit the display L shows the time
selected by the 2 keys. Once the selection has been
completed the LED remains lit for 5 more seconds, then
shuts off.
• When the LED C is lit, the display L shows the time
selected by the 2 keys. Once the selection has been
completed the LED remains lit for 5 more seconds, then
shuts off.
• When the LED D is lit the display L shows the time
selected by the 2 keys. Once the selection has been
completed the LED remains lit for 5 more seconds, then
shuts off.
• When the LEDs A, B, C and D are off and we are within
any synergic program, pressing one of the 2 keys will
cause the display L to show either the current set or the
recommended thickness in millimetres.
Adjusting the 2 selector switches I and P allows you to
immediately see, on the display L, the increase or
decrease in the value selected. This function is used when
one wishes to know in advance at what current or thickness
welding is to begin.
• Pressing the 2 keys simultaneously for at least 5
seconds causes us to enter the sub-menu, where we
find 3 functions that may be selected via the key E:
1 - Soft Start (speed).
Changes the wire speed from the one set; this speed
remains active for the time governed by the Soft Start
function (time).
The speed may be adjusted using the 2 keys M - N from
10% to a maximum of 150% of the set welding speed.
This function, combined with the Soft Start function
(time), serves to improve arc striking. The value shown
on the display L is preceded by the letter (A).
2 - Speed set on the motor of the P3KP.
Adjusting the two keys M - N varies the speed of the
P3KP from –9 to +9 compared to the set value. This
function maximizes wire advancement, putting the wire
feeder motor of the welding machine in step with the
motor of the P3KP. The value shown on the display L is
preceded by the letter (H).
3 - Post gas.
Using the two keys M - N, it is possible to adjust the gas
flow after welding to between 0 and 5 seconds. This
function is especially useful when welding stainless steel
and aluminium. The value shown on the display L is
preceded by the letter (P).
4 - Soft Start (time).
Adjusts the time for which the Soft Start speed remains
active. This function, combined with the Soft Start
function (speed), serves to improve arc striking.
Using the 2 keys M - N, the Soft Start time may be
adjusted from 0 to 1 second. The value shown on the
display L is preceded by the letter (D).
5 - Two-stage manual mode and 4-stage automatic
mode.
Adjust the 2 keys M - N to select the 2-stage or 4-stage
mode.
If the welding machine is set to 2-stage manual mode,
welding begins when the button E is pressed, and stops
when it is released.
If the welding machine is set to 4-stage automatic mode,
press the torch trigger to begin welding; you may release
the trigger once the procedure has begun.
Press and release the trigger again to stop welding. This
shows the program
setting is suitable for long-term welding, where the
welder may tire of holding down the torch trigger. The
value shown on the display L is preceded by the symbols
(2t and 4t).
number
wire speed from 0 to 20 meters/minute.
When using any synergic program, the knob indicator must
be set to the label SYNERGIC. Choose a synergic
program; the display L indicates the current set by the
selected program.
This current corresponds to a given speed. If you wish to
correct this speed, simply turn the knob clockwise to
increase or counter-clockwise to decrease. Changes in
wire speed are always indicated on the display L by a
current.
4. WELDING
4.1. INSTALLATION
Make sure that the wire diameter corresponds to the
diameter indicated on the wire feeder roller, and that the
selected program is compatible with the material and type
of gas. Use wire feeder rollers with a "U"-shaped groove for
aluminium wires, and with a "V"-shaped groove for other
wires.
4.2. THE MACHINE IS READY TO WELD
When using the P3KP or Spool-Gun torch, follow the
instructions enclosed.
• Connect the earth clamp to the workpiece.
• Set the switch I to 1.
• Remove the gas nozzle.
• Unscrew the contact tip.
• Insert the wire in the wire liner of the torch, making sure
that it is inside the roller groove and that the roller is in the
correct position.
• Press the torch trigger to move the wire forward until it
comes out of the torch.
• Caution: keep your face away from the gun tube
assembly while the wire is coming out.
• Screw the contact tip back on, making sure that the hole
diameter is the same as that of the wire used.
• Assemble the gas nozzle.
4.3. WELDING CARBON STEELS
In order to weld these materials you must:
• Use a welding gas with a binary composition, usually
ARGON + CO2 with percentages of Argon ranging from
75% up. With this blend, the welding bead will be well
jointed and attractive. Using pure CO2 as a protection gas
will produce narrow beads, with greater penetration but a
considerably increase in splatters.
• Use a welding wire of the same quality as the steel to be
welded. It is best to always use good quality wires, avoiding
welding with rusted wires that could cause welding defects.
• Avoid welding rusted parts, or those with oil or grease
stains.
9
O - Setting knob.
Adjusts the wire speed, and is active only when
using the standard welding torch and not the
P3KP torch or SPOOL- GUN.
When using the program 00, adjusts the welding
P - Selector switch.
Fine-tunes the welding voltage within the range
selected with the selector switch I.