Lincoln Electric Saf-Fro PRESTOTIG 315DC Manuel D'utilisation page 11

The left (V) Display can also shown the following set of
characters:
PREFLOW
UPSLOPE
FREQUENCY
BACKGROUND
CRATER
SPOT WELDING
STORE
SOFT
PROGRAM
The right (A) Display can also shown the following set of
characters:
01, .....10
01, ......99
See "Operating Instruction" section for a detailed
description of the functions described by these
indications.
Operating Instruction
Stick (SMAW) Welding
To select Stick welding:
Action
Press MODE several times until the LED above lights up
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.
English
START CURRENT
BI-LEVEL
DUTY CYCLE
DOWNSLOPE
POSTFLOW
ERROR
RECALL
CRISP
For program records
For error codes
Visualization

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.
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:

SOFT Stick: For a welding with a low spatter
presence.

CRISP Stick (Factory Default): For an aggressive
welding, with an increased Arc stability.
To switch between Soft and Crisp:
Action
At idle, before welding
Press SEL
Press SEL
Wait 4s or start welding to
store the changes
TIG
Before to start a TIG welding, a gas circuit purge is
recommended.
To purge the gas circuit and torch:
Action
At idle, before welding
Press SEL
Press and keep pushed
SEL
Release SEL
8
Visualization
Voltage


 Voltage
Visualization
Voltage
The purge function is
active; the gas continues to
flow until the SEL
pushbutton is released.
 Voltage
English