WELDKAR WK MIG 3140, Instruction Manual

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INVERTER WELDER
WK MIG 3140
16
2. INTRODUCTION
2.1 GENERAL DESCRIPTION
WELDKAR MIG 3140
With its high output of 315 amps and corresponding high
duty cycle of 40%, this portable Weldkar WK MIG 3140
can be used for a very wide range of applications.
From independent contractors to shipyards, this
machine can take on any welding job on various types of
materials. Because of its 4-roll wire feed system, long-
lasting and trouble-free wire feed is guaranteed up to a
maximum length of 4 meters.
All the parameters are stepless adjustable on the digital
display, which makes it extremely accurate.
Powerful, reliable, compact and portable: these are
a few characteristics of this robust MIG inverter. The
machine is provided with CE and EMC and suitable for
generator use.
The weld inverter is supplied as standard with a:
- WK MIG 3140 Inverter Power source
- Earth clamp with 4-meter earth cable and DIN Plug
- MIG Welding Torch WK 360 - 3 meter
- Power cable 5 meter, 3 x 2.5 mm²
- Gas hose
- 4-roller wire feed unit in aluminium
- Operating manual
The instructions below provide detailed information for
the correct and safe use of the machine and instructions
for obtaining the greatest efficiency and quality from
your power source.
IT MUST NOT BE USED TO DEFROST PIPES.
2.2 TECHNICAL SPECIFICATIONS:
Model WK MIG 3140
Mains voltage 3-phase 400 Volt / ± 10%
Frequency 50 / 60 Hz
Fuse rating 16 A (slow blow)
Current adjustment range 50 – 315 A
Duty Cycle (40°C - 10 min.) 315 A – 40%
260 A – 60%
200 A – 100%
Open circuit voltage 53 Volt
Wire sizes that can be used FE: 0,6/0,8/1,0/1,2
INOX: 0,8/1,0/1,2
AL: 0,8/1,0/1,2
CuSi3: 0,8/1,0
Max. wire spool size Ø 300 mm / 15 kg
Wire feeder 4-roll
Protection Class IP 23
Isolation Class H
Weight 25 kg
Dimensions (LxWxH) 610 x 240 x 430 mm
2.3 EXPLANATION OF THE TECHNICAL
SPECIFICATIONS LISTED ON THE
MACHINE PLATE.
This machine is manufactured according to the following
international standards: IEC 60974.1
N° Serial number. Must be indicated on any
request regarding the welding machine.
Three-phase static transformer-rectifier
frequency converter.
Suitable for MIG/MAG Welding.
Drooping characteristic.
U
0
Secondary open-circuit voltage.
X Duty cycle percentage. % of 10 minutes
during which the welding machine may run
at a certain current without overheating.
I
2
Welding current.
U
2
Secondary voltage with current I
2
.
U
1
Rated supply voltage.
I
1max
Max. absorbed current at the
corresponding current l
2
and voltage U
2
.
I
1eff
This is the maximum value of the actual
current absorbed, considering the duty
cycle.
IP23 Protection rating for the housing. Grade
3 as the second digit means that this
equipment may be stored, but it is
not suitable for use outdoors in the rain,
unless it is protected. Suitable for use in
high-risk environments.
H Isolation Class.
AF Aircooling with fan.
2.4 THERMAL PROTECTION
This inverter is protected by a thermostat. When the
thermostat is tripped, the machine stops delivering
current but the fan continues to run. The yellow led (12)
lights to indicate when it is tripped. Do not shut off the
welding machine until the led has gone off.
2.5 MOTOR-DRIVEN GENERATORS
These must have a power equal to or greater than 6
kVA, and must not deliver a voltage greater than 265 V.