Lincoln Electric RANGER 275 User manual

Precision Arc Performance:
• Patented Micro-Start II™ Technology delivers extremely stable low
amperage starting, welding and cratering for both AC and DC
welding.
• Selectable welding modes such as high frequency, scratch start, and
Touch Start TIG™.
• Higher duty cycles – 275A @ 40% duty cycle.
• Widest welding range in its class 2-340 amps for both AC and DC.
• Excellent stick welder – even with Fleetweld®5P (E6010) with new
Automatic Hot Start™ and Auto Adaptive Arc Force™ controls(1).
Simple Controls – Easy to Use:
• Redesigned controls are simple and well spaced for effortless setting
changes.
• Hidden menu button features up to 7 programmable parameters
without cluttering the control panel(1).
• NEW and Improved Auto Balance®has been readjusted to have more
penetration and improved bead appearance.
Professional Features:
• The K2618-1 Ready-Pak®model Precision TIG®275
(208/230/460/1/60). Under-Cooler Cart Water Cooler, Foot Amptrol®,
Gas Regulator/Flowmeter & Hose Kit, PTW-20 Pro-Torch™ TIG Torch
(250 amp, 25 ft.), Zippered Torch Cover, Parts Kit, Water Hose (2
included) 15 ft., and 15 ft. 2/0 Work Cable and Clamp.
• 115 volt auxiliary power receptacles. Great for powering an optional
water cooler or power tools.
• Add an optional Under-Cooler Cart for extra storage and water-cooled
applications.
• Built-in storage compartment for torch consumables.
• Water-cooled torch connections with no adapters required – side
mounted, out of the way, and well protected.
• Neat/organized cable management with integrated torch holster.
Superb Quality:
• Fan-As-Needed™ (F.A.N.) prevents overheating. F.A.N. reduces power
consumption, noise, motor wear, and dust in the machine.
• CSA C/US certified.
• Three-Year incoln Warranty on parts and labor. Two-year extended
warranty available in the U.S.
Advantage Lincoln
TIG WELDERS
Publication E3.42 11/07
www.lincolnelectric.com
The Power To Perform!SM
Precision TIG®275
Output
1
PHASE
AC
DC
Input
60
Hz
50
Hz
ith NE patented Micro-Start II™ Technology and our New and Improved
AC Auto Balance®on board, the Precision TIG®275 delivers unrivaled starting
and welding at low amperages and improved AC aluminum welding perform-
ance. New features, simple controls, innovative accessory storage, and
attractive and consistent welds–it all adds up. Whatever the TIG welding
application–fabrication, aerospace, production, motorsports, or vocational
education–choose the Precision TIG®275 for outstanding features and precise
arc performance.
Processes
Stick, TIG
TECHNICAL SPECIFICATIONS
Rated Output Dimensions
Product Product Current/Voltage/Duty Cycle Input Current @ H x x D Net eight
Name Number Input Power (104°F, 40°C) Rated Output Output Range inches (mm) lbs (kg)
Precision TIG®275 K2619-1 208/230/460/1/60 275A/31V/40% 80/72/36A with PFC DC: 2-340A 31 x 22 x 26 397
104/94/47A w/o PFC AC: 2-340A (787 x 559 x 660) (180)
Max. OCV: 75V
K2619-2 460/575/1/60 275A/31V/40% 35/28A with PFC
47/38A w/o PFC
K2620-1 220-230/380-400/ 275A/31V/40% 80/46/43A with PFC
415/1/50/60 95/55/50A w/o PFC
Precision TIG®275 K2618-1 208/230/460/1/60 275A/31V/40% 80/72/36A with PFC 49.7 x 28 x 41 641
Ready-Pak®Package 104/94/47A w/o PFC (1262 x 711 x 1041) (291)
(1)Requires optional Advanced Process Panel for full control availability.

A CLOSER LOOK
Precision TIG®275
www.lincolnelectric.com
[2]
What Is It?
Pulse welding systems vary weld current between peak (high heat)
and background current (low heat) levels. Adjusting the pulse fre-
quency controls the level of heat input applied to the weld relative
to the weld travel speed.
Results
Better control of heat input in the weld, resulting in:
• Reduced warping and burnthrough on thin materials.
• Smaller heat-affected zone – good for thin material.
• Smaller bead profile without compromising proper penetration.
Great For
•Thin materials – Faster pulse settings help to narrow the bead
profile and minimize the heat-affected zone and resulting warping
or burnthrough.
•Consistent appearance – Slower pulse settings aid in timing the
application of filler metal to produce the consistent stacked bead
appearance associated with high quality TI
welding.
•Maintaining a steady welding rhythm.
Easy “Set It/See It” Operation:
• Flashing indicator light lets you see the
pulse rate before you strike an arc.
Welding Current
Peak
Background
PULSE FREQUENCY:
Number of Pulses Per Second
Time
Hig Heat
(Peak) Low Heat (Background)
Pulsed TIG Weld
(at 60 amps)
Standard TIG Weld
(at 60 amps)
Smaller Heat
Affected Zone
Smaller Heat
Affected Zone
Smaller Bead Profile
Smaller Bead Profile
Micro-Start II™ Techno ogy aids arc stabi ity
THROUGHOUT THE WELD CYCLE –
even at the owest amperage!
Micro-Start II™ Techno ogy
contro ed ramp down he ps precise y fi
the we d crater for qua ity resu ts.
Micro-Start II™ Techno ogy minimizes high
frequency and ‘hot starts’ to de iver soft arc starts
without arc wandering for AC and DC we ding.
ARC PERFORMANCE
Micro-Start II™ Technology — More than just a starting aid.
Better control for starting, arc stability and crater fill.
Great Starting Stable, Focused Arc Precise Crater Fill
“Set It/See It” Pulse Control — Make attractive and consistent welds!
NOW
INCLUDES
AC
for ALUMINUM
WELDING
AC

AC Auto Balance®Controls —
Auto atically sets the opti al cleaning vs. penetration
level for alu inu welding!
What Is It?
When aluminum welding, the positive (+) portion of the AC welding
amperage cleans the oxides from the aluminum surface. The neg-
ative (-) portion delivers more heat input, increasing penetration
level.
Patented AC Auto Balance®automatically sets the ratio of
cleaning action (+) versus penetration (-) based on amperage.
Manual balance control provides the flexibility to customize
the arc to your preference.
Easy Operation:
• Set it and forget it or override when you choose to customize
the settings.
Precision TIG®275
www.lincolnelectric.com
[3]
A CLOSER LOOK
More Cleaning (+)
Less Cleaning (+)
Less Penetration(-)
More Penetration (-)
WELDING
AMPERAGE
WELDING
AMPERAGE
TIME
TIME
Maximum Cleaning Setting Maximum Penetration
Setting
Auto Balance Setting
AC Auto Balance®is especially useful on
critical aluminum applications.
PERFORMANCE
• Excellent stick welding performance.
— Weld steel, stainless and low allow metals with ease.
— Weld sheet metal, pipe and heavy plate.
— Weld with Lincoln®Blue Max®Stainless, Excalibur®Low
Hydrogen and Fleetweld®5P welding electrodes.
• Wider output range — for maximum flexibility:
— 2-340A DC, 2-340 AC.
• More amperage than nearest competitor at 40% duty cycle — 25
amps more!
• Lower input current draw compared to nearest competitor — up to
10% less current with 40% more duty cycle.

Precision TIG®275
www.lincolnelectric.com
[4]
A CLOSER LOOK
S own: K2618-1
Water-Cooled Ready-Pak®Package
Torc Parts Storage
Compartment. Optional TIG pulsing elps you make great welds.
Water-cooled torc
connections wit no adapters
— side mounted to keep out
of t e way and protected.
Neat/organized cable
management wit
integrated torc olster.
Separate output studs for stick and TIG
keep bot stick electrode older and
TIG torc connected at t e same time
— eliminates set-up c angeover w en
switc ing processes.
Easily accessible input voltage
reconnect panel.
Low-Lift S ielding Gas Bottle
Platform.
Lockable Undercarriage Storage and Water-Cooler Drawers.
Reliable Pro-Con pump.
Optional Features:
(standard wit K2618-1 Water-Cooled Ready-Pak®Package)
FEATURES

Precision TIG®275
www.lincolnelectric.com
[5]
A CLOSER LOOK
FEATURES, CONʼT.
• Large, well-spaced controls make it easy to view and set up
with gloved hands.
SET-UP MENU
Press and hold the menu button to display up to seven programmable
parameters. The setting of the desired level is displayed, and increas-
ing or decreasing the level setting is easy.
The Set-Up Menu includes:
Standard
• DC TI Start Modes: High Frequency, Scratch Start, and
Touch Start TI ™.
• Adjustable Preflow Time.
• Adjustable Start Pulse for Soft or Forceful Starts.
With Optional Advanced Control Panel
• Adjustable TI Hot Start.
• Adjustable Upslope Time.
• Adjustable Stick Hot Start.
• Adjustable Stick Arc Force.
Key Controls
A) Minimum Output Preset Control & Display
Switch (Also displays output voltage)
B) Set-Up Menu (see below)
C) Digital Amperage Meter
D) Local/Remote Current Control Switch
E) Maximum Output Preset Control
F) Post Flow Time
) Thermal Shutdown Light
H) Optional Advanced Control Panel
1) Trigger Switch (2-step/4-step)
2) Pulse/Spot Time Mode Switch
3) Pulse Frequency Control
4) Pulse % On Time Control
5) Pulse Background Current
Control
6) Downslope Time, In Seconds
7) Spot Time
I) Polarity Switch
J) Power Switch
K) AC Balance Control
L) Mode Switch
BCD E
F
G
H
H
123 4&7 56
I
J
K
L
A