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Lincoln Electric IM702-A Internal SET UP Controls, Stick Welding Features, TIG Welding Features

Models: IM702-A

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B-7

OPERATION

B-7

 

 

 

INTERNAL SET UP CONTROLS

Precision TIG 275 models which have an Advanced Panel (K1829-1) option installed* have the following additional control features which are set up using the DIP Switch (S1) provided on the internal panel of this option.

Access to this internal panel is obtained by removing the two screws securing the top corners of the Precision TIG front control panel and swinging the con- trol panel down to reveal the panel mounted on the sur- face of the Precision TIG Control board:

CAUTION

•THE CONTROL BOARDS CONTAIN STATIC SEN- SITIVE COMPONENTS

•To avoid possible damage to these components

be sure to ground yourself by touching the machine’s sheet metal while handling or making settings on the internal control box components.

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

PRECISION TIG ADVANCED PANEL

(Internal Panel)

^ ON

1 2 3 4 5 6 7

DIP SWITCH (S1)

HOT START

F

ARC FORCE

 

ON

1

2

3

4

5

6

7

8

OFF

DIP SWITCH POSITIONS (FACTORY SETTINGS)

STICK WELDING FEATURES

The following DIP switch feature selections function only when the Precision TIG is set to Stick mode. (See Item 3):

•Switch #6 Hot Start Level – Provides an extra out- put "boost" pulse at the arc strike to enhance arc starting. This is factory set for a level (about 50% extra) which is usually good for most stick welding applications

ON – Hot Start level is used (as shipped). OFF – No Hot Start.

•Switch #7 Arc Force Level – Prevents "stubbing" of the electrode by providing extra output current if the arc voltage drops below the level required to sustain the welding arc. High (+65%) and Low (+12%) factory set levels are selectable which are good for most stick welding applications.

ON – Higher for a "crisper" arc, often desired for 6010 type electrodes.

OFF – Lower Arc Force (as shipped) for a "softer" arc with 7018 or general type electrodes.

• Switch #8 (NOT CURRENTLY FUNCTIONAL)

TIG WELDING FEATURES

The following DIP switch feature selections function only when the Precision TIG is set to TIG mode (See Item 3):

•Switch #1 Preflow/Postflow Time Extension* (See Item 9)

ON – Doubles the time ranges.

OFF – Standard time ranges (as shipped).

•Switch #2 2-Step Trigger Restart Feature (See Figure B.3)

ON – Restart Enabled (as shipped).

OFF – Restart Disabled.

•Switch #3 4-Step Trigger Restart Feature (See Figure B.4)

ON – Restart Enabled.

OFF – Restart Disabled (as shipped)

•Switch #4 (NOT CURRENTLY FUNCTIONAL)

•Switch #5 Crater-Fill Level (See Item 7)

ON - Level is minimum rating of the machine (2A) OFF – Level (as shipped) is Minimum Output setting

(same as Start level).

*The Preflow/Postflow Time doubling feature can also be selected on Precision TIG 275 models without the Advanced Panel by accessing the Control board in the control box per above instruc- tions, then disconnecting the jumper terminals attached to the jumper plug connected to receptacle J3 of the Control board. (Refer to Machine Wiring Diagram.)

PRECISION TIG 275

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Lincoln Electric IM702-A manual Internal SET UP Controls, Stick Welding Features, TIG Welding Features
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IM702-A specifications

The Lincoln Electric IM702-A is a versatile and innovative welding machine that has garnered attention for its advanced features and robust performance. Designed for various welding applications, the IM702-A is a go-to choice for professionals in the industry, offering precision, reliability, and ease of use.

One of the standout characteristics of the IM702-A is its advanced inverter technology. This allows for a lightweight and compact design, making it easier to maneuver in tight spaces compared to traditional welding machines. The inverter technology also contributes to energy efficiency, reducing power consumption without compromising on performance.

The IM702-A features a multi-process capability, enabling it to perform MIG, TIG, and Stick welding with ease. This versatility makes it ideal for a wide range of projects, from industrial manufacturing to home repairs. Users can seamlessly switch between different welding processes, enhancing productivity and streamlining workflow.

In terms of user interface, the Lincoln Electric IM702-A is designed with convenience in mind. It boasts a digital display that provides real-time information on welding parameters, making it easier for operators to monitor and adjust settings as needed. The intuitive controls are user-friendly, allowing even novice welders to achieve professional-quality results.

The machine also includes advanced weld control features, such as precise amperage and voltage adjustments. These controls ensure that users can achieve optimal settings for different materials and thicknesses, resulting in clean, strong welds. Additionally, the IM702-A is equipped with an automatic voltage adjustment feature, which helps maintain consistent performance under varying input conditions.

Durability is another key selling point for the IM702-A. Built with high-quality materials and engineering, this welding machine is designed to withstand the rigors of daily use in demanding environments. Its rugged construction provides reliability and longevity, ensuring that it remains a valuable asset in any workshop.

Lastly, safety is a priority in the design of the IM702-A. It includes several built-in safety features, such as thermal overload protection and a stabilized arc performance that reduces the risk of arc blow, protecting both the operator and the equipment.

Overall, the Lincoln Electric IM702-A stands out in the welding market due to its advanced technologies, multi-process capabilities, user-friendly interface, and robust safety features, making it an excellent choice for professional welders seeking high-quality performance and versatility.