Section 4 − Operation; Front Panel Controls And Gas Connection; Process Selection (Stl Model Only) - Miller Maxstar 150 S Manuel De L'utilisateur

4-1. Front Panel Controls And Gas Connection

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1 Ready Light (LED)
Light comes on approximately two seconds af-
ter power switch is placed in On (I) position if
Lift-Arc On or Stick has been selected. If TIG
Impulse is selected, ready light comes on only
after output is enabled. The light indicates that
the unit is energized and ready for welding. A
flashing light indicates unit is not ready, or that
there is a functional error.
.
The fan motor is
controlled.
2 High Temperature Light (LED)
Light comes on if unit overheats. Once unit has
cooled down, welding can resume. If this light
flashes, take unit to an Authorized Service
Agent.

4-2. Process Selection (STL Model Only)

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1
Press
OM-2242 Page 12
SECTION 4 − OPERATION
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3 Amperage Adjustment Control
This control adjusts welding amperage.
4 Process Select Switch
See Section 4-3.
5 Positive Weld Output Receptacle
For Stick welding, connect electrode cable to
this receptacle. For TIG welding, connect work
cable to this receptacle.
6 Negative Weld Output Receptacle
thermostatically
For Stick welding, connect work cable to this
receptacle. For TIG welding, connect torch
cable to this receptacle.
7 Remote Receptacle
For TIG Impulse or Lift-Arc TIG, output may be
adjusted from min to max of the front panel set-
ting with a remote control.
=Light Off =Light On
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Press
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8
5
4
Press
7
Ref. 803 375-A / 233 167-A
8 Power Switch
Place switch in On (I) or Off (0) position as
needed.
9 Gas Fitting
Fittings have 5/8-18 right-hand threads (3/8-19
BSPP on CE units).
10 Cylinder Valve
Open valve slightly so gas flow blows dirt from
valve. Close valve.
11 Regulator/Flowmeter
12 Flow Adjust
Typical flow rate is 15 cubic feet per hour (7.1
liters per minute) at a maximum of 90 psi (621
kPa).
Connect customer supplied gas hose between
regulator/flowmeter and gas fitting .
1 Process Selector Switch Pad
Use control to select required welding
process. Press switch pad until LED
for desired process is illuminated.
2 Lift Arct Start
When selected, a TIG arc starting
method in which the electrode must
come in contact with the workpiece to
initiate an arc is activated (see Section
4-4).
3 Stick (SMAW)
When selected, Adaptive Hot Start
and DIG circuitry are energized.
4 Lift Arct Start (Remote)
A TIG starting method in which the
electrode must come in contact with
the work and a closure from pin 1 to pin
2 on the remote receptacle (see Sec-
tion 3-4) is required to initiate an arc.
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