Saf-Fro PRESTOTIG 315 AC/DC Bedienungsanleitung Seite 13

Menu:
This unit permits an advance setting divided in 3 menu:
1.) Press and Hold
menu "GTAW".
2.) Press and Hold
menu "SMAW".
3.) Press and Hold
setup menu "SYS".
4.) Upon entering one of the three menus ,
"GTAW","SMAW", or "SYS", menu progression is
accomplished by pressing
While moving backward is accomplished by pressing
5.) Changes to menu items will be accomplished by
using the Control Knob
6.) After an item is changed it will be saved if
is pressed.
7.) Each menu can be exited by pressing
Operating Instruction
DC Stick (SMAW) Welding
To start DC Stick welding process:
1.) Set polarity
2.) To select Stick welding:
Process
Press MODE several times until the LED above lights up
(led ON) is turned on.
When the Stick position is selected, the following
welding features are enabled:

Hot Start: This is a temporary increase in the output
current during the start of the stick welding process.
This helps ignite the arc quickly and reliably.

Anti-Sticking: This is a function which decreases the
output current of the machine to a low level when the
operator makes an error and sticks the electrode to
the work piece. This decrease in current allows the
operator to remove the electrode from the electrode
holder without creating large sparks which can
damage the electrode holder.

Auto Adaptive Arc Force: this function increases
temporary the output current, used to clear
intermittent connections between the electrode and
the weld puddle that occur during stick welding.
English
for 5 seconds to access setup
for 5 seconds to access setup
+ for 5 seconds to access
.
Visualization
Crisp
Soft
This is an active control feature that guarantees the
best arrangement between the arc stability and
spatter presence. The feature "Auto Adaptive Arc
Force" has instead of a fixed or manual regulation,
an automatic and multilevel setting: its intensity
depends by the output voltage and it is calculated in
real time by the microprocessor where are also
mapped the Arc Force levels. The control measure
in each instant the output voltage and it determines
the amount of the peak of current to apply; that value
is enough to breaks the metal drop that is being
transferred from the electrode to the workpiece as to
guarantee the arc stability, but not too high to avoid
spatters around the welding puddle. That means:

Electrode / workpiece sticking prevention, also
with low current values.

Spatters reduction.
The welding operations are simplified and the welded
joins looks better, also if not brushed after the
welding.
In Stick mode, two different setup are available, and they
are completely separate into Process setup:

SOFT Stick: For a welding with a low spatter
presence.

CRISP Stick (Factory Default): For an aggressive
welding, with an increased Arc stability.
or
For default the polarity is DC+. To change in DC- see
menu SMAW operation section.
See menu SMAW to change value of hot start and arc
force.
AC Stick Welding
To start AC Stick welding process:
3.) Set polarity
4.) To select Stick welding:
Process
Press MODE several times until the LED above lights up
(led ON) is turned on.
The output current wave form is a 60Hz sinusoidal
current with balance 50% without offset. It's not possible
to change any parameters of AC Wave.
10
Visualization
Crisp
Soft
English