MMTIG201IDV Inverter Powered Dual Voltage AC/DC TIG/Stick Welder OWNER’S MANUAL 12/2020 WARNING: Read carefully and understand all ASSEMBLY AND OPERATION INSTRUCTIONS before operating. Failure to follow the safety rules and other basic safety precautions may result in serious personal injury.
WARRANTY METAL MAN WORK GEAR CO EFFECTIVE JANUARY 1, 2013 LIMITED WARRANTY This warranty applies to the original purchaser and is subject to the terms and conditions listed below. This Limited Warranty is for new equipment sold after the above date, providing coverage for defects in material and workmanship at the time it is shipped from the factory.
GENERAL SAFETY RULES WARNING: Read and understand all instructions. Failure to follow all instructions listed below may result in serious injury. CAUTION: Do not allow persons to operate or assemble this unit until they have read this manual and have developed a thorough understanding of how the unit works. WARNING: The warnings, cautions, and instructions discussed in this instruction manual cannot cover all possible conditions or situations that could occur.
material being welded, ground or electrode from another welder. -Do not weld if you are in an awkward position. Always have a secure stance while welding to prevent accidents. Wear a safety harness if working above ground. -Do not drape cables over or around your body. -Wear a full coverage helmet with appropriate shade (see ANSI Z87.1 safety standard) and safety glasses while welding. -Wear proper gloves and protective clothing to prevent your skin from being exposed to hot metals, UV, and IR rays.
UV and IR Arc Rays The welding arc produces ultraviolet (UV) and infrared (IR) rays that can cause injury to your eyes and skin. Do not look at the welding arc without proper eye protection. -Always use a helmet that covers your full face from the neck to top of head and to the back of each ear. -Use a lens that meets ANSI standards and safety glasses. For welders under 160 Amps output, use a shade 10 lens; for above 160 Amps, use a shade 12. Refer to the ANSI standard Z87.1 for more information.
Electromagnetic Field -Electromagnetic fields can interfere with various electrical and electronic devices such as pacemakers. -Consult your doctor before using any electric arc welder or cutting device -Keep people with pacemakers away from your welding area when welding. -Do not wrap cable around your body while welding. -Wrap MIG gun and ground cable together whenever possible. -Keep MIG gun and ground cables on the same side of your body.
TECHNICAL SPECIFICATIONS Item Power Supply No-Load Voltage Output Range - STICK Output Range – TIG DC Output Range – TIG AC Duty Cycle - STICK Duty Cycle- TIG AC/DC Pulse Frequency AC Arc Frequency AC Arc Balance Control Weight Dimensions Specification 120V, 20A, 50/60 Hz, Single Phase 230V, 22A, 50/60 Hz, Single Phase 60V DC 10 to 80A DC with 120V Input Power 10 to 160A DC with 230V Input Power 10 to 120A with 120V Input Power 10 to 200A with 230V Input Power 15 to 120A with 120V Input Power 15 to 200A wi
STYLE 26 TIG TORCH The TIG torch transfers welding power from the welding power source to the tungsten for the purpose of TIG welding. It also delivers the shielding gas from the welding power source to the welding zone. This style 26 torch uses the same common parts as other Style 26 TIG torches GROUND CABLE AND CLAMP The ground cable and clamp are attached to the work piece to complete the circuit allowing the flow of current needed to weld.
ASSEMBLY Electrical Shock Can Kill! • High voltage danger from power source! Consult a qualified electrician for proper installation of receptacle. This welder must be grounded while in use to protect the operator from electrical shock. • Do not remove grounding prong or alter the plug in any way. Use only the supplied adapter between the welder's power cord and the power source receptacle.
5. TIG WELDING CONNECTION – DC TIG welding is generally performed DC Electrode negative. That means that the TIG torch and cable would be attached to the Negative (-) weld output connection and the ground cable and clamp would be attached to the Positive (+) weld output connection. Use this same connection when AC TIG welding. Connect the Remote Foot Pedal to the Remote connection on the lower front panel. Connect the TIG torch gas supply line to the Gas Outlet on the lower front panel.
7. GAS INSTALLATION Shielding gas cylinders and high-pressure cylinders can explode if damaged, so treat them carefully. • Never expose cylinders to high heat, sparks, open flames, mechanical shocks or arcs. • • • • Do not weld on the cylinder. Always secure cylinder upright to a cart or stationary object. Keep cylinders away from welding or electrical circuits. Use the proper regulators, gas hose and fittings for the specific application. a.
Gas selection: Except for very specialized TIG welding applications, TIG welding can be done with 100% Argon. Consult your gas supplier for more information. 8. REMOTE CONTROL INSTALLATION NOTE: When stick welding, remove all remote controls. Failure to do this will result in minimal welding output only. Remote Contactor and Amperage Control – This unit comes standard with a remote foot pedal control. The remote foot pedal is used to initiate the arc and then vary the amperage during your weld.
AVOID ACCIDENTAL ARCING • • When in the STICK welding mode, the weld output connections of this unit are electrically hot. To avoid accidental arcing, be mindful of the welding accessories that are connected to the weld output connections. Make certain the welding accessories connected to this unit are not touching each other and are not electrically connected to each other. a. With the input power switch turned ON, observe which of the Weld Process Indicator Lights is on. b.
a. See the ASSEMBLY section for the correct welding accessories connections for DC Stick Welding. b. Turn the input power switch ON. c. Press the button below the weld process indicators until the weld process indicator light next to DC Stick is on. d. Press the button below the weld parameter indicator lights until the Indicator Light is ON for the Current (A) Weld Parameter. e. The Digital Meter is displaying the Current (A) setting. f.
(A) Weld Parameter. e. The Digital Meter is displaying the Current (A) setting. f. Turn the Parameter Adjustment Control until the Digital Meter displays the desired Current (A) setting. This is the current setting that the operator wants when the foot pedal is completely pressed to the maximum. The operator will then have control of the Current (A) output from minimum amperage to this maximum setting by varying the amount the operator is pressing down on the foot pedal. i.
display shows the desired setting. NOTE: When adjusting the Pulse Frequency (HZ) parameter, this unit will automatically default back to the Current (A) parameter after 5 seconds on no parameter changes. a. See the ASSEMBLY section for the correct welding accessory connections for AC TIG Welding. b. Turn the input power switch ON. c. Press the Weld Process Selector button until the Weld Process Indicator Light next to AC TIG is on. i.
both the AUTO Balance/Frequency Indicator and the Current (A) Indicators are on. ii. The Digital Meter is displaying the Current (A) setting. iii. Turn the Parameter Adjustment Control until the Digital Meter displays the desired Current (A) setting. This is the current setting that the operator wants when the foot pedal is completely pressed to the maximum.
DC STICK OPERATION • High voltage danger from power source! Consult a qualified electrician for proper installation of receptacle. This cutter must be Grounded while in use to protect the operator from electrical shock. • Do not remove grounding prong or alter the plug in any way. Use only the supplied adapter between the welder's power cord and the power source receptacle.
2. GROUND CLAMP CONNECTION Clear any dirt, rust, scale, oil or paint on the ground clamp. Make certain you have a good solid ground connection. A poor connection at the ground clamp will waste power and heat. Make sure the ground clamp touches the metal. 3. ELECTRODE The welding electrode is a rod coated with a layer of flux. When welding, electrical current flows between the electrode (rod) and the grounded metal work piece.
4.3b. The bead will undercut the work 4.3c. The bead will be flat and porous 4.3d. Rod may freeze or stick to work piece Note: Rate of travel over the work also affects the weld. To ensure proper penetration and enough deposit of rod, the arc must be moved slowly and evenly along the weld seam. 5. SETTING THE AMPERAGE CONTROL The welder has current control that is infinitely adjustable within its range. It is capable of welding with electrodes up to 3/32ʺ diameter.
1/8-inch gap between the rod and the work piece. See following picture It is important that the gap be maintained during the welding process and it should be neither too wide nor too narrow. If too narrow, the rod will stick to the work piece. If too wide, the arc will be extinguished. It takes much practice to maintain the gap. The beginners may get stuck or arc will be extinguished. When the rod is stuck to the work piece, gently rock it back and forth to make them separate.
running downward while still allowing slow enough travel speed to achieve good penetration. A good starting point for your electrode angle is about 30 degrees DOWN from being perpendicular to the work piece. 6.5 Judge the good weld bead: When the trick of establishing and holding an arc has been learned, the next step is learning how to run a good bead. The first attempts in practice will probably fall short of acceptable weld beads.
BASIC TIG WELDING OPERATION High voltage danger from power source! Consult a qualified electrician for proper installation of receptacle at the power source. This welder must be grounded while in use to protect the operator from electrical shock. If you are not sure if your outlet is properly grounded, have it checked by a qualified electrician. Do not cut off the grounding prong or alter the plug in any way and do not use any adapter between the welder's power cord and the power source receptacle.
Guide for Selecting Filler Wire Diameter Tungsten Electrode Types Aluminum Welding Material Page 24 of 29
Welding Rate TIG Welding is generally regarded as a specialized process that requires operator competency. While many of the principles outlined in the previous Arc Welding section are applicable a comprehensive outline of the TIG Welding process is outside the scope of this Operating Manual. MAINTENANCE • High voltage danger from power source! Consult a qualified electrician for proper installation of receptacle. This cutter must be Grounded while in use to protect the operator from electrical shock.
TROUBLESHOOTING Failure Unit does not power up. Temperature indicator is on. Alarm indicator is on. TIG arc does not start. Stick amperage seems low. There is no shielding gas. Cooling fan is not working. There is no display on the digital meters. Possible Cause Corrective Action Unit is not plugged in. Plug in unit. Input power circuit breaker is not on. Reset input power circuit breaker. The main power switch is not working. Replace main power switch. The internal temperature is too high.
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Metal Man Work Gear Company 1760 Prospect Ct #120 Appleton, WI 54914 www.metalmangear.
