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Miller Auto-Line XMT 350 CC User Manual

Miller Auto-Line XMT 350 CC
52 pages
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OWNER’S MANUAL
OM-2247AH
2020-05
212857
Processes
Multiprocess Welding
Description
Arc Welding Power Source
For product information,
Owner’s Manual translations,
and more, visit
www.MillerWelds.com
XMT
®
350 CC/CV
Auto-Line

Table of Contents

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Miller Auto-Line XMT 350 CC Specifications

General IconGeneral
Input Voltage208/230/460 V
Input Frequency50 / 60 Hz
Duty Cycle60% at 350 A
Input Phase1/3
Rated Output350 A at 32 V, 60% duty cycle
Welding ProcessesMIG, Flux-Cored, Stick, TIG

Summary

Section 1: Safety Precautions

Symbol Usage

Explains warning symbols used in the manual for hazard identification.

Arc Welding Hazards

Details hazards associated with arc welding processes, including electrical shock and burns.

Additional Hazards for Installation, Operation, and Maintenance

California Proposition 65 Warnings

Principal Safety Standards

EMF Information

Section 3: Definitions

Additional Safety Symbol Definitions

Explains safety symbols specific to CE products, detailing potential hazards.

Miscellaneous Symbols And Definitions

Provides definitions for various symbols used in the manual, including process and control indicators.

Section 4: Specifications

Serial Number And Rating Label Location

Instructs on finding the serial and rating information on the unit's rear panel.

Software Licensing Agreement

Directs users to the EULA and third-party software terms online.

Information About Default Weld Parameters And Settings

Advises on the use and limitations of default weld parameters and user responsibility.

Unit Specifications

Details electrical and performance specifications like input power, output, and duty cycle.

Dimensions And Weight

Provides physical dimensions and weight of the welding unit.

Environmental Specifications

Lists environmental operating conditions, including IP rating and temperature ranges.

Temperature Specifications

Details operating and storage/transportation temperature ranges for the equipment.

Volt-Ampere Curves

Illustrates the minimum and maximum voltage and amperage output capabilities.

Duty Cycle And Overheating

Explains duty cycle percentages and procedures for preventing and handling overheating.

Section 5: Installation

Selecting A Location

Provides guidelines for choosing a suitable and safe location for the welding unit.

Selecting Cable Sizes

Offers a guide for selecting appropriate weld cable sizes based on amperage and length.

Weld Output Terminals

Identifies the positive and negative weld output terminals on the unit.

Remote 14 Receptacle Information

Details the function and pinouts of the 14-pin remote receptacle.

Optional 115 Volts AC Duplex Receptacle And Supplementary Protectors

Describes the optional receptacle and its protective circuit breakers.

Optional Gas Valve Operation And Shielding Gas Connection

Explains how to connect and operate the shielding gas system for TIG processes.

Electrical Service Guide

Provides recommendations for electrical service, including voltage, current, and conductor sizing.

Connecting 1-Phase Input Power

Details the procedure for safely connecting single-phase input power to the unit.

Connecting 3-Phase Input Power

Details the procedure for safely connecting three-phase input power to the unit.

Section 6: Operation

Front Panel Controls

Identifies and explains the function of the controls on the front panel of the welding unit.

Mode Switch Settings

Describes how to set the mode switch for different welding processes and output controls.

Section 7: GTAW Operation

Typical Connection For GTAW Process

Illustrates the standard connection setup for Gas Tungsten Arc Welding (GTAW).

Scratch Start TIG Welding Mode — GTAW Process

Explains how to set up and operate the unit in Scratch Start TIG mode.

Lift-Arc TIG Welding Mode — GTAW Process

Details the setup and operation for Lift-Arc TIG welding, emphasizing arc initiation.

TIG Welding Mode — GTAW Process

Covers the general TIG welding mode setup and operation requirements.

Section 8: GMAW/FCAW Operation

Typical Connection For Remote Control Feeder GMAW/FCAW Process

Shows the connection diagram for GMAW/FCAW with a remote wire feeder.

MIG Welding Mode — GMAW/FCAW Process

Explains the setup and operation for MIG welding, including arc control.

Typical Connection For Remote Control Feeder GMAW-P Process

Illustrates connections for Pulsed MIG welding (GMAW-P) with a remote feeder.

Pulsed MIG Welding Mode — GMAW-P Process

Details the operation of the unit in Pulsed MIG mode, requiring an external pulsing device.

Typical Connection For Voltage-Sensing Feeder GMAW/FCAW Process

Shows the typical connection for a voltage-sensing feeder in GMAW/FCAW processes.

V-Sense Feeder Welding Mode — GMAW/FCAW Process

Explains the setup and operation for V-Sense Feeder welding mode.

Section 9: SMAW/CAC-A Operation

Typical Connection For SMAW And CAC-A Process

Illustrates the standard connection setup for SMAW and Carbon Arc Cutting (CAC-A).

CC Welding Mode — SMAW/CAC-A Process

Details the setup and operation for Constant Current (CC) mode welding.

Stick Welding Mode — SMAW/CAC-A Process

Explains the setup and operation for Stick welding, including Arc Control.

Optional Low Open Circuit Voltage (OCV) Welding Modes

Describes the optional low OCV feature for Stick and Scratch Start TIG modes.

Alternate Configuration Functions

Explains how to configure remote control operation and meter display modes.

Section 10: Maintenance and Troubleshooting

Routine Maintenance

Outlines a schedule for checking, cleaning, and replacing parts for regular maintenance.

Blowing Out Inside Of Unit

Provides instructions on how to clean the unit's interior by blowing out dust.

Help Displays

Lists and explains various help messages displayed by the unit indicating status or malfunctions.

Troubleshooting

Offers solutions for common operational problems and error conditions.

Section 11: Electrical Diagram

Warranty Information

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