DISCOVERY
220 T
P. F. C. Power Factor Corrector
English
Discovery 220T
Advanced TIG device
220 T: Applications
• Thanks to its dimensions and the
ratio weigh-power/duty cycle 300T
is the best option on the market,
for small and medium workshops,
ideal for maintenance, food industry,
hydraulics, piping, medium weight steel
constructions and chemical plants.
• Easy to transport, only 18,5 kg, it is
the best option for maintenance and
repair on field, shipyard and off-shore
operations.
• Discovery 220T is designed for welders
at all levels and is recommended
also for demonstrations and welding
schools.
220 T: Remote Controls
• Connector with insulated
pins for remote control of
welding parameters.
• Torches with
potentiometers and up/
down switches can be
used as well.
Cooling unit
220 T: Ventilation tunnel
• Thanks to the
external connection
the cooling unit is
easily removable.
• All electronic pcbs are
insulated from ventilation
flow.
W.eco Technology Inside
P.F.C. Power Factor Corrector
• This symbol highlights Weco’s constant care for ecological issues and new technologies which have been
introduced to reduce the environmental impact.
• Discovery 220 T Series introduce new technological solutions in order to reduce the harmonic current emissions
according to the future International Standards, to increase even more the power inverter efficiency and to reduce
the input current more than 20%.
• The same welding deposit is achieved with less electrical power, less total power and less CO2 emission for the
safety of Planet Earth.
Discovery 220T
Advanced TIG device
Control Panel
Easy setting of welding parameters
DYNAMIC ARC
Led On
Q START
MULTI-TAC
Output voltage Led
General alarm Led
Remote control Led
Encoder
MMA welding process Led On
DC TIG Led ON
Pulsed DC TIG Led ON
(Freq. 0,1 Hz÷2;5 KHz)
Quick-Spot led On
Synergic Pulse led On
Job Management Key
HF activated
Q-Spot blinking led
2-strokes process Led On
4-strokes process Led On
VRD Function
4-strokes Bi-level process led On
Discovery 220T
Advanced TIG device
Q-START
The Q START (Quick start) function facilitates the joining of the parts in the initial stage
of the welding process. On activating this function the machine automatically switches
to Synergic pulsed mode for a preset time. The resulting pulses create movement of
the molten metal on the two sheet metal edges thereby accelerating formation of
the join. This function is invaluable in the case of seams with slight openings or with
irregular preparation. The duration of the series of pulses can be adjusted, (from 0.1 to
10 second) depending on the thickness and shape of the sheet to be welded.
90°
Q-START
Q
Spot
Q-Spot
The Q-Spot (Quick Spot) function makes it possible to minimise tacking times for light
gauge sheet metal. The operator conveniently places the tungsten electrode on the
fixing point, thereby obtaining perfect control of the position of the join. Once the
electrode has been lifted the machine emits a very high intensity welding current pulse
with a very short preset time (from 0.01 Sec to 1 Sec). The pulse time varies depending
on the type of sheet metal to be joined. In this way the welded point closes instantly
with minimum heat transfer, leaving the metal white, clean and almost cold.
Pipe butt weld
Ø 31.75 x 2 mm
Corner spot welding
thichness 0,6 mm
90°
Discovery 220T
Advanced TIG device
Saldatura TIG Normale - Standard TIG welding
K
Dynamic
Arc
DYNAMIC ARC
The DYNAMIC ARC function makes it possible to keep the product of Voltage x
Current constant. The power source increases the welding current as the arc voltage
decreases and reduces the welding current if the arc voltage increases. The DynARC
value can be adjusted from a minimum of 10 Ampere to a maximum of 50 Ampere at
each 1 Volt variation, whether positive or negative.
Welding benefits of the DynARC function:
Faster welding - Less plastic deformation of the welded part. Increased vertex
angle penetration - Heat input concentrated exclusively on the weld and not on
the surrounding area - Less oxidation of the part and hence reduced post-welding
reworking costs - Improved control of the first root pass (helpful for plumbers and
plant engineers) - Reduced risk of the electrode sticking when it touches the weld
puddle - Facility to work with the electrode very close to the weld puddle in order to
concentrate the arc.
90°
Dynamic Arc TIG welding
Standard TIG welding
The MULTITACK system makes it possible to reduce heat output while joining two
light gauge parts (0.6mm – 0.8mm). The series of arc strikes at short time intervals
allows the material to cool during the pause between one strike and the other and
thus minimizes its deformation. The facility to adjust the frequency of the series of arc
strikes in the time unit makes it possible to adapt the electric arc to the welding speed
and the joint geometry.
MULTITACK
Discovery 220T
Advanced TIG device
MMA
Up to 5 mm
electrodes
in MMA
Adjustable
Arc Force and
Hot Start
TIG DC
High quality HF
ignition suitable
for very long
torces
Discovery 220T
Advanced TIG device
APPLICATION FIELD
Industrial assembly
Maintenance and servicing
Naval shipbuilding industry
Electro-mechanical assembly
Agricultural machine servicing
Air conditioning plants
Hydraulics
Pipe welding
Metal windows and door frames
Fabrication
Discovery 220T
Technical data
1x230Vac ± 15% @ 50-60Hz
16A /25A
%
TIG
40%
60%
220A
RT
-
2
-
40 °C
I
%
I
I
2
2
U
P
IP
0
1 MAX
MMA
100%
-
60%
180A
160A
-
180A
150A
60%
100%
-
-
100%
220A
180A
-
-
180A
5A - 220A
100%
10A - 180A
81V
5.9KVA -5.8KW
23S
460 x 230 x 325mm
18,5Kg
CU 05C
Technical data
1x230Vac ± 15% @ 50-60Hz
1,35A
P1 L/MIN
P MAX
0,44MPa
IP
23S
1.18kW
2,2l
530 x 230 x 210mm
12,0Kg
EN60974-1/10
EN60974-1/12
EN 60974-2
Distributor:
WECO srl
Via S. Antonio 22 - Loc. Belvedere
36050 Tezze sul Brenta (Vicenza) - Italy
Tel +39 0424 561 943
fax +39 0424 561 944
sales@weco.it - www.weco.it
SC LASER TECHNOLOGY SOLUTII GLOBALE SRL
STR. DOROBANTI, Bl. A14, Ap. 8, 120086 - BUZAU, ROMANIA
Mob: +40752082220; Fax: +40238712718
www.lastechno.com - e-mail: sorin.udrea@lastechno.com
10/2012
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