Introduction And General Description; Main Characteristics; Standard Accessories; Optional Accessories - Berner INVERTER 145 Manual De Instrucciones

RESIDUAL RISKS
SHOULD BE CARRIED OUT WITH THE WELDING MACHINE SWITCHED OFF

2. INTRODUCTION AND GENERAL DESCRIPTION

welding carbon steel or weak alloys with CO
using tubular full or core electrode wires.
It is also ideal for MIG welding stainless steel with Argon gas containing + 1-2%
oxygen and aluminium and CuSi3, CuAl8 (brazing) with Argon gas, using electrode
wires that are suitable for the workpiece to be welded.
Suitable core wires can be used without Flux protection gas, adapting torch polarity
according to the indications of the wire producer (versions 180A and 200A only).
It is particularly suitable for light metalwork fabrication and in body shops, for welding
galvanized plates, high stress stainless steel and aluminium. SYNERGIC operation
ensures fast and easy welding parameter setting, always guaranteeing high arc
control and welding quality (OneTouch Technology).
The welding machine, where available (see Tab. 1), can be used for TIG welding in
direct current (DC), with arc striking upon contact (LIFT ARC mode). It welds all types
of steel (carbon, low- and high-alloy) and heavy metals (copper, nickel, titanium and
their alloys) with a gas shield of pure (99.9%) Ar or, for special uses, with an Argon/
Helium mix. It can also be used for MMA electrode welding in direct current (DC) using
coated electrodes (rutile, acid, basic).

2.1 MAIN CHARACTERISTICS

MIG-MAG
- Synergic (automatic) or manual operation;
- Pre-set synergic curves;
- Wire speed, welding voltage and welding current shown on an LCD screen;
- 2T, 4T and spot operation selection;
- Adjustments: wire up slope, electronic reactance, wire burn-back time, post gas;
- Polarity change for GAS MIG-MAG/BRAZING welding or NO GAS/FLUX (versions
180A and 200A only).
- Setting the metric or UK system.
- Start LIFT;
- Wire speed and welding current shown on an LCD screen.
- Arc force adjustment, hot start.
- VRD device.
- Anti-stick protection.
- Indication of recommended electrode diameter based on welding current;
- Wire speed and welding current shown on an LCD screen.
PROTECTION
- Thermostatic safeguard;
- Protection against accidental short-circuits caused by contact between torch and
earth;
- Protection against irregular voltage (power supply voltage too high or too low);
- Anti-stick (MMA).
protective gas or Argon/CO mixes,
2 2

2.2 STANDARD ACCESSORIES

- Torch;
- Return cable complete with earth clamp;
- Torch holder support (where available).

2.3 OPTIONAL ACCESSORIES

- Argon bottle adapter;
- Trolley (versions 180A and 200A only);
- Self darkening helmet;
- MIG MAG welding kit;
- MMA welding kit;
- TIG welding kit.

3. TECHNICAL DATA

3.1 DATA PLATE

The most important data regarding use and performance of the welding machine are
summarised on the rating plate and have the following meaning:
1- EUROPEAN standard of reference, for safety and construction of arc welding
machines.
2- Symbol for internal structure of the welding machine.
3- Symbol for welding procedure provided.
4- Symbol S: indicates that welding operations may be carried out in environments
with heightened risk of electric shock (e.g. very close to large metallic volumes).
5- Symbol for power supply line:
1~ : single phase alternating voltage;
3~ : 3-phase alternating voltage.
6- Protection rating of the covering.
7-
- U : Alternating voltage and power supply frequency of welding machine (allowed
1
limit ±10%).
- I : Maximum current absorbed by the line.
- I : effective current supplied.
8- Performance of the welding circuit:
- U : maximum no-load voltage (open welding circuit).
0
- I : current and corresponding normalised voltage that the welding machine
2 2
can supply during welding.
- : Duty cycle: indicates the time for which the welding machine can supply the
corresponding current (same column). It is expressed as %, based on a 10 min.
cycle (e.g. 60% = 6 minutes working, 4 minutes pause, and so on).
If the usage factors (on the plate, referring to a 40°C environment) are exceeded,
the thermal safeguard will trigger (the welding machine will remain in standby
until its temperature returns within the allowed limits).
- : shows the range of adjustment for the welding current (minimum
maximum) at the corresponding arc voltage.
9-
technical assistance, requesting spare parts, discovering product origin).
: Size of delayed action fuses to be used to protect the power line.
10-
11- Symbols referring to safety regulations, whose meaning is given in chapter 1
"General safety considerations for arc welding".
Note: The data plate shown above is an example to give the meaning of the symbols
and numbers; the exact values of technical data for the welding machine in your
possession must be checked directly on the data plate of the welding machine itself.

3.2 OTHER TECHNICAL DATA:

4. WELDING MACHINE DESCRIPTION

4.1 CONTROL, ADJUSTMENT AND CONNECTING DEVICES.

4.1.1 WELDING MACHINE (Fig. B, B1, B2, B3)

1- Control panel.
2- Welding cable and torch.
3- Earth return cable and clamp.
4- Torch coupling.
5- Positive (+) fast coupling for connecting the welding cable.
6- Negative (-) fast coupling for connecting the welding cable.
7- Fast coupling plug connected to the torch coupling.
8- Touch coupling (T2).
9- SPOOL GUN torch coupling.
10- SPOOL GUN control cable connector.
11- Welding cable and torch (T2).
12- SPOOL GUN (optional).
13- Main ON/OFF switch.
14- Hose connector for protective gas.
15- Power cable.
16- Hose connector for torch T2 protective gas.
17- Hose connector for SPOOL GUN torch protective gas.
18- Positive clamp (+).
19- Negative clamp (-).

4.1.2 WELDING MACHINE CONTROL PANEL (Fig. C)

1- selection, if pressed, of MIG-MAG welding (SYNERGIC or MANUAL), TIG or MMA
- Adjustment of welding power.
MANUAL MIG-MAG:
- Adjustment of wire feed speed.
- Adjustment of welding current.
- Adjustment of welding current.
2- If pressed it allows access to preset machine programs.
- 6 -
Fig. A