Benman 160 GEN Notice Originale page 16

ORIGINAL INSTRUCTIONS
OPERATING CONTROLS AND OPTIONS
1. Output Current Regulator: Used
to regulate the output current to be
used when welding (Fig.1).
2. Power Supply LED: Showing power
supply status (Fig.1).
3. Thermal Protection LED: This lights
up when the unit has overheated/
antisticking and the output power has
been cut off. Usually this occurs when
the welding power source jogging
factor (duty cycle) has been exceeded.
Check that the air-intake grills on the
front, back and sides of the welder
are not clogged. Leave the welder
switched on to allow the internal com-
ponents to cool down. When the LED
turns off, normal welding operations
can be resumed (Fig.1).
4. Negative Terminal Fast-Connect
Plug: Provides negative output cur-
rent to the welding circuit (Fig.1).
5. Positive Terminal Fast-Connect
Plug: Provides positive output current
to the welding circuit (Fig.1).
6. ON/OFF Switch: switches on or off
welding power source (Fig. 2).
7. Power Supply Cable: This unit is
equipped with its own power supply
cable, with plug. Connect it to the
local power supply (Fig. 2).
8. Rear Air-intake grill (Fig. 2).
MMA WELDING INSTRUCTIONS
First and foremost decide which is the
correct polarity for the chosen elec-
trode. (Consult the instructions on the
electrode packaging).
Then connect the welding cables to the
output terminals as appropriate (Figs.1,
4 and 5).
Figure 3 shows the connections for
welding operations using positive
polarity DC current.
Connect the electrode cable to the "+"
terminal and the earth clamp cable to
the "-" terminal.
Lining up the peg and the groove, insert
the plug and screw it in well clockwise.
Do not over-tighten. Invert the connec-
tions so that the electrode is connected
to the "-" terminal and the clamp cable
is connected to the "+" terminal when
welding using negative polarity DC
current.
Set the welding current according to
the diameter of the electrode and the
thickness of the workpiece.
While welding the following features come into
effect:
Arc Force
Optimizes the drop transfer from the
electrode to piece and prevents the
arc turning off when the electrode is in
contact with the piece.
Antisticking device
A device that switches off the output
current if the operator makes a mistake
and the electrode gets stuck to the
workpiece. The electrode can be
removed from its clamp without igniting
flames that could damage it.
TIG WELDING INSTRUCTIONS
Argon gas must be used for TIG welding.
Connect the gas pressure regulator to the
cylinder, then connect the torch hose to
the pressure regulator.
TIG welding is usually performed using
negative polarity DC current (See "-" in
Fig. 4).
The TIG torch cable should be inserted
into the negative terminal socket on the
unit.
The earth clamp cable should be connect-
ed to the positive terminal socket.
At this point the welding current can be
selected using the regulator located on
the front panel of the unit.
The diameter of the electrode and the
welding current value should be selected
according to the thickness of the work-
piece.
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