Operation, Recommended processes and equipment, Operational features and controls – Lincoln Electric IDEALARC SP-250 Manuel d'utilisation
Page 18
B-2
OPERATION
B-2
The system includes the following features:
•
2-step or 4-step selectable trigger function (above
code 9500 only).
•
both timed spot and stitch welding selections.
•
drop-in 2" (51mm) O.D. wire reel spindle with a 22-
30 lb. (10 - 13.6 kg) Readi-Reel- adapter.
•
integral gas cylinder mounting undercarriage.
•
12.5 ft. (3.8m) Magnum 250SP GMAW gun and
cable.
•
dual groove drive roll and a gun liner for .035
(0.9mm) and .045 (1.2mm) electrodes.
•
one contact tip for each wire size.
•
adjustable CO2 or argon blend flow regulator with
cylinder pressure gauge.
•
10 ft. (3.0m) plug cable with receptacle.
•
12 ft. (3.6m) work cable with clamp.
RECOMMENDED PROCESSES AND
EQUIPMENT
The SP-250 is recommended for GMA welding
processes using 10 to 30 lb. (4.5 to 13.6 kg) 2" (51mm)
I.D. spools or Readi-Reel coils of
•
.025" through .045" (0.61.2mm) solid steel using
CO2, ArCO2, or ArO2 shielding gas
• .035" (0.9mm) stainless steel using ArO2 or
HeArCO2 shielding gas
•
3/64" (1.2mm) aluminum using Ar shielding gas
•
.045" (1.2mm) Outershield- electrodes using CO2
or ArCO2 shielding gas
•
.035" (0.9mm) and .045 (1.2mm) Innershield self-
shielded electrodes.
The SP-250 is factory equipped to feed .035 (0.9mm)
and .045 (1.2mm) electrodes and includes a 200A,
60% duty cycle rated, 12.5 ft. (3.8m) GMA gun and
cable assembly equipped for these wire sizes. The
SP-250 is factory equipped with an adjustable CO2 or
argon blend flow regulator. A supply of shielding gas is
required for GMAW processes.
OPERATIONAL
FEATURES AND
CONTROLS
Keypad - Consists of 20 membrane keys that have
large touch areas. The keys are spaced far enough
apart to provide easy selection, even if wearing weld-
ing gloves. An audible feedback beep is provided
whenever a key is pressed to ensure proper entry.
Display - Wide temperature range liquid crystal display
combines large 0.32" (8.1mm) high characters in a 2-
line by 16-character alphanumeric format. It has long
life LED backlighting and a non-glare cover for easy
viewing under bright or dark conditions. Multi lan-
guage display capability permits the SP-250 to com-
municate in English, German, French, Spanish, or
Japanese (Katakana).
Auto Mode - Simply set the thickness of the material
being welded and the SP-250 automatically sets the
proper wire feed speed and arc voltage for the process
being used. This eliminates the need for look-up
tables, procedure slide rules, or notebooks to find the
proper settings. Auto Mode also provides one key con-
trol of the output by automatically adjusting both the
wire feed speed and arc voltage for an increase or
decrease in material thickness or wire feed speed.
This allows the operator to easily increase or decrease
his output without having to know how much to change
each parameter.
Thumb Switch on Gun - Allows the operator to set or
change the output of the machine, the wire feed speed,
or the arc voltage from the gun, even during welding.
This permits "on the fly" adjustment. In toggle opera-
tion mode, the thumb switch allows the operator to
toggle between two procedures stored in memory.
Memory - There are five separate memory locations
that the operator can use to save or recall a setup pro-
cedure. This eliminates dial marking and makes recall-
ing a setup as simple as pushing one of the five mem-
ory keys for instant recall. Also, when power is
removed, these five memories as well as any current
setup in use is automatically saved. This feature does
not require batteries. When power is restored, the pro-
cedure in use will automatically return the unit to what-
ever was set up was being used when power was
removed.
Trigger Interlock (Above code 9500 only) - Selectable
four-step trigger interlock allows operator to release
gun trigger after weld current is established and con-
tinue welding. Breaking the arc or re-closing and then
releasing the gun trigger, stops the welding process.
IDEALARC SP-250