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ESAB MEK 4 User Manual

ESAB MEK 4
30 pages
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cmek0p00
0740 800 085
Valid for serial no. 431--xxx--xxxx to 826--xxx--xxxx040426
MEK 4
Service manual
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ESAB MEK 4 Specifications

General IconGeneral
Input Voltage230 V
Frequency50/60 Hz
Mains Fuse16 A
Welding Current Range30-160 A
Duty Cycle15% @ 160 A
Protection ClassIP21S
Insulation ClassH
Dimensions450 x 230 x 380 mm
Weight26 kg
Output Current Range30-160 A
Wire Diameter0.6-0.8 mm

Summary

Read This First

Safety Warnings

Covers static electricity, electric shock, fumes, arc rays, fire, and noise hazards.

Component Description

Wiring Diagram (Serial No. 431-xxx-xxxx)

Wiring Diagram (Serial No. 514-xxx-xxxx to 826-xxx-xxxx)

Description of Operation

Design Changes

Details changes introduced in design and functionality across different serial numbers.

Power Supply

Details the DC and AC power supplies, regulators, and voltage monitoring.

Crater Filling Function

Explains the modules, operation, and settings for the crater fill function.

Voltage Adjustment (Serial No. 431)

Details how to adjust welding voltage using the front panel or remote control.

Voltage Adjustment (Serial No. 514+)

Details how to adjust welding voltage for later serial numbers.

Gas Valve (Serial No. 431)

Explains the connection and operation of the gas valve for earlier models.

Gas Valve (Serial No. 514+)

Explains the connection and operation of the gas valve for later models.

2-Stroke / 4-Stroke Mode

Details the operation of the 2-stroke and 4-stroke welding modes.

Burn-Back Time

Explains the burn-back time adjustment and its function.

Wire Feed Speed (Serial No. 431)

Describes setting wire feed speed via front panel or remote control for early models.

Wire Feed Speed (Serial No. 514+)

Describes setting wire feed speed for later models using front panel or remote.

Creep Start / Normal Start

Explains creep start functionality and how to activate/deactivate it.

Motor Driving and Braking

Details motor power, pulse width modulation, current limit, and braking.

Tachometer Input

Explains the tachometer function, signal conversion, and display connections.

Current Relay

Describes the operation of the current relay and its effect on other functions.

Start / Stop Operation

Explains how the welding gun trigger switch controls unit start and stop.

Processor Control

Details processor monitoring of voltage, speed, and program versions.

Remote Control Input (12-pole)

Details connections and capabilities for 12-pole remote control units.

Remote Control Input (23-pole)

Details connections and capabilities for 23-pole remote control units and suitable models.

Digital Display Unit

Describes the digital display unit, its connections, and data transmission.

Technical Data

Handling and Safety Precautions

Important warnings regarding tipping, movement, and securing the equipment.

Maintenance

Setting Wire Feed Pressure

Detailed instructions and figures for correctly setting the wire feed roller pressure.

Control Panel and Connections

Creep Start / Normal Start Link

Details the link for activating or deactivating creep start for immediate or gradual start.

Brake Hub Adjustment

Instructions for adjusting the braking power of the hub using screws.

Accessories

Spare Parts

Notes

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