English 6 English
Allowable TIG processes:
135S:
Scratch
TIG
150S / 170S: Lift TIG
Arc Force
Auto Adaptive Arc Force (with MMA welding) (150S /
170S only):
During MMA welding is activated the function Auto
Adaptive Arc Force that 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.
With the MMA welding are also enabled the following
features:
Hot Start: This is a temporary increase in the initial
welding current. This helps ignite the arc quickly and
reliably.
Anti-Sticking: This is a function that 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 that can damage
the electrode holder.
Refer to the section below for more details.
Controls and Operational Features
Machine Start-Up:
When the machine is turned ON, an auto-test is executed;
during this test only the Thermal LED is ON; after few
seconds the Thermal LED turns OFF and the Power
ON/OFF LED lights up.
135S: The Machine is ready to operate when on the
Front Control Panel lights up the Power ON LED.
150S / 170S: The Machine is ready to operate when
on the Front Control Panel lights up the Power ON
LED with one of the three LED of the Welding mode
command.
Front Panel Controls
Output Current Knob: Potentiometer
used to set the output current used during
welding.
Power ON/OFF LED: This LED lights up
when the machine is ON.
150S / 170S: If blinking, this LED
indicates that an Input Voltage Overrange
protection is active; the Machine restarts
automatically when the Input Voltage
returns in the correct range.
Thermal LED: This indicator will turn on
when the machine is overheated and the
output has been disabled. This normally
occurs when the duty cycle of the
machine has been exceeded. Leave the
machine on to allow the internal
components to cool. When the indicator
turns off, normal operation is again
possible.
150S
170S
only
VRD LED's (enabled on Australian
Machines only): This machine is provided
by VRD (Voltage Reduction Device)
function: this reduces the voltage at the
output leads.
The VRD function is enabled by factory
default only on machines that meet the
AS 1674.2 Australian Standards. (C-Tick
logo " " on/near the Rating Plate applied
on the machine).
The VRD LED is ON when the Output
Voltage is below 32V with the Machine at
idle (no welding time).
For others machines this function is
disabled (the LED is always OFF).
