Lincoln Electric 250 GXT manual Welder Operation, Auxiliary Power

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A-6

INSTALLATION

A-6

 

 

 

WELDER OPERATION

WELDER OUTPUT

•Maximum Open Circuit Voltage at 3700 RPM is 80 Volts RMS.

•Duty Cycle is the percentage of time the load is being applied in a 10 minute period. For example, a 60% duty cycle represents 6 minutes of load and 4 minutes of no load in a 10 minute period. Duty Cycle for the Ranger® 250 GXT is 100%.

Ranger® 250 GXT

Constant Current

250 Amps AC @ 25 Volts

 

 

250 Amps DC @ 25 Volts

 

 

 

 

Constant Voltage

250 Amps DC @ 25 Volts

 

 

 

 

AUXILIARY POWER

The Ranger® 250 GXT can provide up to 10,000 watts of 120/240 volts AC, single phase 60Hz power for continuous use, and up to 11,000 watts of 120/240 volts AC, single phase 60Hz power peak use. The front of the machine includes three receptacles for connecting the AC power plugs; one 50 amp 120/240 volt NEMA 14-50R receptacle and two 20 amp 120 volt NEMA 5-20R receptacles. Output voltage is within +/-10% at all loads up to rated capacity.

All auxiliary power is protected by circuit breakers. the 120V has 20 Amp circuit breakers for each duplex receptacle. The 120/240V Single Phase has a 50 Amp 2-pole Circuit Breaker that disconnects both hot leads simultaneously.

CAUTION

Do not connect any plugs that connect to the power receptacles in parallel.

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Start the engine and set the “IDLER” control switch to the desired operating mode. Set the “CONTROL” to

10.Voltage is now correct at the receptacles for auxil- iary power.

120/240 VOLT DUAL VOLTAGE RECEPTACLE

The 120/240 volt receptacle can supply up to 42 amps of 240 volt power to a two wire circuit, up to 42 amps of 120 volts power from each side of a three wire circuit (up to 84 amps total). Do not connect the 120 volt circuits in parallel. Current sensing for the automatic idle feature is only in one leg of the three wire circuit as shown in the following column.

GND

120 V

240 V

120 V*

*Current Sensing for Automatic Idle. (Receptacle viewed from front of Machine)

120 V DUPLEX RECEPTACLES

The 120V auxiliary power receptacles should only be used with three wire grounded type plugs or approved double insulated tools with two wire plugs.

The current rating of any plug used with the system must be at least equal to the current load through the associated receptacle.

MOTOR STARTING

Most 1.5 hp AC single phase motors can be started if there is no load on the motor or other load connected to the machine, since the full load current rating of a

1.5hp motor is approximately 20 amperes (10 amperes for 240 volt motors). The motor may be run at full load when plugged into only one side of the duplex receptacle. Larger motors through 2 hp can be run provided the receptacle rating as previously stated is not exceeded. This may necessitate 240V operation only.

Ranger® 250 GXT Extension Cord Length Recommendations

(Use the shortest length extension cord possible sized per the following table.)

Current

Voltage

Load

 

Maximum Allowable Cord Length in ft. (m) for Conductor Size

(Amps)

Volts

(Watts)

14 AWG

12 AWG

10 AWG

8 AWG

6 AWG

4 AWG

15

120

1800

30

(9)

40

(19)

75

(23)

125

(38)

175

(53)

300

(91)

20

120

2400

 

 

30

(9)

50

(15)

88

(27)

138

(42)

225

(69)

15

240

3600

60

(18)

75

(23)

150

(46)

225

(69)

350

(107)

600

(183)

20

240

4800

 

 

60

(18)

100

(30)

175

(53)

275

(84)

450

(137)

42

240

10,000

 

 

 

 

50

(15)

90

(27)

150

(46)

225

(69)

Conductor size is based on maximum 2.0% voltage drop.

RANGER® 250 GXT

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Contents Ranger 250 GXT Safety Depends on YouCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding and Cutting Sparks can Cause fire or explosionPrécautions DE Sûreté IvSAFETYThank You TAbLE of Contents Installation Machine Grounding Safety PrecautionsSpark Arrester TowingGasoline PRE-OPERATION ServiceVehicle Mounting FuelAngle of Operation Additional Safety PrecautionLifting High Altitude OperationAdditional Safety Precautions Connection of Lincoln Electric Wire FeedersInstructions Location / VentilationWelder Operation Auxiliary PowerDevices Without Addi Tional Resistive Type Loads Simultaneous Welding and Power Auxiliary Power While WeldingSTANDbY Power Connections Connection of Ranger 250 GXT to Premises Wiring Operation Engine SwitchGENERAL DESCRIPTION Welder Controls Function and OperationPIN Connector Polarity SwitchLocal / Remote Control Switch Ranger 250 GXT Approximate Fuel ConsumptionStarting the Engine STARTING/SHUTDOWN InstructionsStopping the Engine Welding Process Wire Feed Welding Processes Constant VoltageStick Constant Current Welding TIG Constant Current WeldingSummary of Welding Processes Control Electrode Idle When not To Start Process Used Mode WeldingCAbLE K1745-1 Welding GAS Cylinder LPG Tank Holder AccessoriesK857 25 ft.7.5m or K857-1100 ft.30.4m RECOMMENDED EQUIPMENT WIRE FEEDStick TIGSafety Precautions MaintenanceRoutine Maintenance Engine OIL ChangeOIL Filter Change AIR Cleaner and Other MaintenanceEngine Maintenance Parts Engine AdjustmentsSlip Rings HardwareTROUbLESHOOTING Cause Recommended Course of Action SymptomsTROUbLESHOOTING Diagrams Diagrams Diagrams Print DimensionRanger GXTPrecaucion Warnung

250 GXT specifications

The Lincoln Electric 250 GXT is a powerful and versatile welder designed to meet the needs of professionals and hobbyists alike. With its durable construction and advanced technology, this machine excels in a variety of welding applications, making it a popular choice for those looking to perform stick and TIG welding efficiently.

One of the standout features of the Lincoln Electric 250 GXT is its robust performance. It operates on a reliable 240-volt power source, providing ample power to handle a wide array of welding jobs. The machine has an impressive output range, delivering a maximum welding output of 250 amps, which allows for welding materials from thin sheets to heavy-duty steel components. This versatility makes it ideal for use in both industrial settings and home workshops.

The 250 GXT incorporates Lincoln Electric’s advanced Arc Control technology, which ensures a smooth and stable arc for a superior welding experience. This technology helps to reduce spatter and improve bead appearance, resulting in cleaner welds. Additionally, the machine features an adjustable arc force control, allowing users to tailor the arc characteristics based on the specific requirements of their welding tasks.

Another key characteristic of the 250 GXT is its ease of use. The machine is equipped with a user-friendly control panel, featuring straightforward knobs for setting the amperage and voltage. This intuitive design allows even novice welders to achieve excellent results with minimal training. Moreover, the unit is relatively lightweight and portable, fitting easily into mobile welding projects.

Durability is a hallmark of Lincoln Electric products, and the 250 GXT is no exception. Constructed with high-quality materials, it is built to withstand the rigors of regular use in demanding environments. The machine is also designed with safety features, including thermal overload protection, which prevents overheating and ensures longevity.

In summary, the Lincoln Electric 250 GXT is a top-tier welding machine that combines power, precision, and user-friendliness. Its advanced technologies, robust construction, and versatility make it an ideal choice for welders looking to tackle a wide range of projects with confidence and skill. Whether you are working on fabrications, repairs, or artistic endeavors, the 250 GXT delivers the performance and reliability that professionals demand.
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