Lincoln Electric 275 manual Advanced Panel Controls, Do not USE 4-STEP if Using AN Amptrol Remote

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B-6

OPERATION

B-6

 

 

 

8.DIGITAL METER AND DISPLAY SWITCH– A (3- digit) LED meter is used to monitor the preset and actual welding procedure based on the Display (momentary) switch position:

•Before welding with Display switch in center (normal) position, the digital meter displays the preset welding amps set by Maximum Output control knob (See Item 6). If in Stick mode using REMOTE (See Item 5.), the digital meter displays the preset welding amps set by the Remote control. (See Item 11)

•While welding with Display switch in center (normal) position, the digital meter displays the actual welding amps with one amp resolution (XXX) and accuracy within 4%+/-2A of reading.

•Any time in TIG mode and while pressing the Display switch to left, the digital meter displays the amps pre- set by the Minimum Output control knob (See Item 7).

•Any time in Stick mode and while pressing the Display switch to left, the digital meter displays the minimum amps rating of the machine (See Item 7).

•Any time, in either mode, while pressing the Display switch right to Volts position, the digital meter displays actual output volts. Volts is displayed with 0.1 volt res- olution (XX.X) and accuracy within 3%+/-1V of read- ing.

•While pressing the (Menu) button when not welding (see Menu Button and Display Button in previous section), for Meter and Display switch functions.

9.POSTFLOW TIME – This knob is used to set the TIG mode shielding gas postflow time over the range of about 2 to 60 seconds after the arc is shut off. The postflow on time status is indicated by the Green panel light.

•Postflow Time is x2 extendable, if needed, by inter- nal control box selection. (See Internal Set Up Controls)

•Gas preflow time for TIG mode is factory set at 0.5 second, but shorter times are selectable with the Menu Button and Display Button.

10.THERMAL SHUTDOWN LIGHT – This yellow LED panel light turns on if the machine output is shut- down because internal overheating has occurred, and turns off when the thermostat resets.

11.REMOTE RECEPTACLE – A 6-socket receptacle is provided for the connection of an Amptrol, or other, remote control: (See Figure B.2)

•When the Current Control Switch, (See Item 5), is in the REMOTE position the Amptrol, or other remote (10K pot), connected to the Remote receptacle con- trols the TIG or Stick mode output within the range preset by the Maximum and Minimum Output con- trols. (See Item 6 and Item 7, also 8 for meter dis- play)

•When the Current Control Switch is in either LOCAL or REMOTE positions the arc start switch functions when connected to the Remote receptacle.

FIGURE B.2

 

REMOTE RECEPTACLE*

 

(Front View)

 

ARC START

 

REMOTE OUTPUT

SWITCH

 

CONTROL

 

C

Max

 

 

D

B

10K ohm

 

 

E

A

Min

 

F

*For 18-12P Plug

(LECO S12020-27)

ADVANCED PANEL CONTROLS

The following controls are included only if the Precision TIG 275 has the Advanced Control Panel (K2621-1) option installed: (Refer to Section B-10 Tig Weld Cycle Chart for graphic illustration of these TIG welding func- tions.)

12.TRIGGER SWITCH – This 2-position switch selects how the arc start switch ( connected to the above Remote receptacle) functions; in 2-Step or 4- Step mode:

CAUTION

•DO NOT USE 4-STEP IF USING AN AMPTROL REMOTE.

•Neither the arc start switch nor the output con- trol in the amptrol will function normally to shut off or control the out put. ONLY USE 2-STEP.

------------------------------------------------------------------------

•In 2-Step position the arc start switch functions the same as without the Advanced Panel:

1.Closing switch starts preflow, then a fixed (0.5 sec.) ramp time from Minimum (Start) setting level (See Item 7) to Weld setting.

2.Opening switch initiates Downslope ramp time setting (See Item 17), from Weld set- ting to Crater-fill level (See Item 7), which then stops the arc and initiates Postflow time (See Item 9).

Note: See Section B-7 for 2-Step operation during Downslope with Restart feature selected to be dis- abled, instead of enabled (as shipped).

PRECISION TIG 275

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Contents Precision TIG Safety Depends on YouCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a LʼArc Précautions DE SûretéThank You Table of Contents Rated Input Single Phase only InstallationDuty Cycle-Applications Volts at Rated Amperes Amps Precision TIGPhysical Dimensions Recommended Input Wire and Fuse SizesTemperature Ranges Additional Output CapacitySafety Precautions Input and Grounding Connections Work Cable Connection Stick Electrode Cable ConnectionOutput CABLES, Connections and Limitations Figure A.2 TIG Torch ConnectionFigure A.3 Auxiliary Power ConnectionsFigure A.4 Robotic Interface ConnectionProduct Description OperationPipe Thawing Welding SparksRecommended Processes Recommended Processes and EquipmentProcess Limitations Equipment LimitationsFigure B.1 Control Panel Controls and SettingsOperation Digital Display TIG Mode MenuAdvanced Panel Controls Do not USE 4-STEP if Using AN Amptrol RemoteOperation Internal SET UP Controls TIG Welding FeaturesStick Welding Features Figure B.3 Figure B.4 Setup Guidelines for TIG Welding With AN Amptrol TIG Weld Cycle ChartFigure B.6 Recommended Electrode Amperage Ranges Precision TIG Making a TIG Weld with AN AmptrolSmaw Process Gtaw ProcessFactory Installed Options AccessoriesField Installed Options Optional EquipmentSafety Precautions MaintenanceRoutine and Periodic Maintenance Overload ProtectionService Procedures Component AccessSpark GAP Adjustment UNDER-COOLER Service Meter Calibration AdjustmentHOW to USE Troubleshooting Guide TroubleshootingSymptoms Output ProblemsCourse of Action GAS Problems Meter ProblemsHI-FREQ Problems Preset & Output Control Problems TIG Welding Problems Stick Welding ProblemsTIG Problems Wiring Diagram Wiring Diagram Dimension Print K2619-1 Domestic Precision TIG Precision TIG Aviso DE Warnung
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275 specifications

The Lincoln Electric 275 is a versatile multi-process welding machine that stands out for its advanced features and robust performance. Designed for both novice and experienced welders, the machine offers MIG, TIG, and stick welding capabilities, making it a valuable tool for a variety of applications.

One of the main features of the Lincoln Electric 275 is its power output. With an impressive selection of amperage settings, it can deliver between 25 to 275 amps, making it suitable for both thin and thick materials. This flexibility allows users to work on projects ranging from automotive repairs to industrial fabrication.

The machine utilizes inverter technology, which significantly enhances its efficiency and reduces power consumption. Inverter welders are known for their lightweight design and compact size compared to traditional transformer-based welders. This portability makes the Lincoln Electric 275 easy to transport to job sites, catering to both professional and hobbyist welders who require mobility.

Another defining characteristic of the Lincoln Electric 275 is its easy-to-use interface. The digital display provides clear readings, allowing users to effortlessly adjust settings for optimal performance. Additionally, the machine features a user-friendly control panel with distinct knobs for regulating voltage and wire feed speed, assisting welders in achieving precise welds.

The Lincoln Electric 275 is also equipped with advanced arc technologies. Its built-in arc control enhances the stability of the welding arc, resulting in a smoother, more consistent weld. Furthermore, the machine offers synergic controls that automatically adjust the voltage and wire feed speed based on the selected material and thickness, making the welding process more intuitive and reducing the margin for error.

Durability is another hallmark of the Lincoln Electric 275. Constructed with high-quality materials, the machine is built to withstand the rigors of daily use in demanding environments. Its design also incorporates efficient cooling mechanisms to prevent overheating during prolonged operations, ensuring longevity and reliability.

In conclusion, the Lincoln Electric 275 is a powerful and adaptable welding machine that combines advanced technology with user-friendly features. Its multi-process capabilities, inverter technology, and robust construction make it an essential tool for both professional welders and DIY enthusiasts. Whether tackling intricate projects or heavy-duty tasks, the Lincoln Electric 275 proves to be a reliable choice that does not compromise on performance.
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