Tweco 95 S Thermal Arc(Nov2010) - Manual (Page 29)

OPERATION THERMAL ARC 95 S
Operation 4-1 Manual 0-5175
Figure 4-1: 95 S Controls
SECTION 4:
OPERATION
Conventional operating procedures apply when using
the Welding Power Source, i.e. connect work lead
directly to work piece and electrode lead is used to hold
the electrode. The welding current range values should
be used as a guide only. Current delivered to the arc is
dependent on the welding arc voltage, and as welding
arc voltage varies between different classes of electrode,
welding current at any one setting would vary according
to the type of electrode in use. The operator should use
the welding current range values as a guide then fine
tune the welding current to suit the specific application.
Refer to the electrode manufacture's literature for further
information.
4.01 Front Panel
(A) Process Selection Switch
Switches between GTAW (Lift TIG) and SMAW (Stick)
Welding modes.
(B) Power On Indicator
The Power ON Indicator illuminates when the ON/OFF
switch is in the ON position and the nominal mains voltage
is present.
(C) Over Heat Indicator
The welding power source is protected by a self resetting
thermostat. The indicator will illuminate if the duty cycle
of the power source has been exceeded. If the Over Heat
light illuminates wait for the Over Heat light to extinguish
before resuming welding.
(D) Welding Current Control
The welding current is increased by turning the Weld
Current control knob clockwise or decreased by turning
the Weld Current control knob counterclockwise. The
welding current should be set according to the specific
application. Refer to the electrode manufacture's literature
for further information.
(E) ON/OFF Switch (located on rear panel - not
shown)
This switch controls the Mains Supply Voltage to the
Power Source.
Art # A-09695
(A) Process
Selection
Switch
(C) Warning
Indicator
(B) Power On
Indicator
(D) Welding
Current
Control