IMS FLEX 280A CEL Manual De Instrucciones página 18

ARC FORCE
• MMA PULSE
The MMA Pulsed mode is recommended for vertical-up welding (PF) The pulse mode keeps the weld pool cold and
eases the transfer of matter. Without the pulse mode, vertical-up welding requires a difficult «Christmas tree» triangular
movement. With the MMA Pulsed mode, this movement is no longer required and a simple straight up movement is
enough (depending on the thickness of the workpiece). If you wish to widen your weld pool, a simple lateral movement
is enough (similar to normal welding).
In this case the pulse current frequency can be adjusted on the display. This process allows greater control during ver-
tical-up welding.
Activating the MMA Pulsed mode and setting the intensity:
PULSE
To set the Hot Start, follow these steps :
Recommendations:
- Low Hot start, for thin sheets
- High Hot start for difficult-to-weld metals (dirty or oxydised)
18
IMS FLEX 280A CEL
0 - 90 %
rut - bAS - CEL
OK
When the machine is in MMA Standard mode:
• Press the switch (5) for 3 seconds.
• «PLS» (Pulsed) blinks and a number is displayed
(display (1)).
• Set the desired intensity using the keys (4).
• The machine is ready to operate.
OK
When the machine is in MMA Pulsed mode:
• Press shortly the switch (5) to set the HOT START.
• «HS» (HOT START) blinks and a number is displayed
(display (1)).
0 - 100 %
• Set the desired percentage using the keys (4).
• Validate by pressing the switch (5).
OK
When the machine is in MMA pulse mode:
• Briefly press the button (5) to set the ARC FORCE.
• «AF» (ARC FORCE) flashes and a number is displayed (screen (1)).
• Set the desired percentage or the type of electrode using the keys
(4).
• Validate by pressing the switch (5).
EN