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Stealth Cobra MIG 200 Operator's Manual

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OPERATOR'S MANUAL
MIG 200 INVERTER
Part No. 9134H
IMPORTANT
Read this Operator's Manual completely before attempting to use this equipment.
Save this manual and keep it handy for quick reference.
Pay particular attention to the safety instructions we have provided for your protection.
Contact your distributor if you do not fully understand this manual.

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Summary of Contents for Stealth Cobra MIG 200

  • Page 1 OPERATOR’S MANUAL MIG 200 INVERTER Part No. 9134H IMPORTANT Read this Operator’s Manual completely before attempting to use this equipment. Save this manual and keep it handy for quick reference. Pay particular attention to the safety instructions we have provided for your protection. Contact your distributor if you do not fully understand this manual.

  • Page 2: Table Of Contents

    CONTENT CONTENT §1 Safety ······························································································································ 1 §2 Overview ························································································································ 9 §2.1 Features ······························································································································· 9 §2.2 Technical Data ···················································································································10 §2.3 Duty cycle and Over-heat··································································································10 §2.4 Working Principle ·············································································································11 §2.5 Volt-Ampere Characteristic ······························································································11 §3 Panel Functions & Descriptions ·················································································· 13 §3.1 Machine Layout Description ····························································································13 §3.2 Control Panel of welding machine ···················································································14 §4 Installation &...

  • Page 3: Safety

    SAFETY §1 Safety Notice: The instructions are for reference only. The manufacturer reserves the right to explain the differences between the description and the product due to product changes and upgrades! The device is manufactured using state-of-the-art technology and according to recognised safety standards. If used incorrectly or misused, however, it can cause: ...
  • Page 4 SAFETY Excessive ambient temperature will cause the machine heat dissipation is not smooth, so that the internal components of the machine heat seriously. Usually the maximum operating temperature is 104°F (40°C). Low temperature may lead to performance degradation or damage of components inside the product, resulting in ice inside the water tank.
  • Page 5 SAFETY Many harmful phenomena, such as noise, bright light and harmful gas, will inevitably occur in the welding process. In order to avoid harmful By product phenomena causing harm to the human body, it is necessary to make corresponding preparations in advance. Arc rays from the welding process produce intense visible and invisible ultraviolet and infrared rays that can burn eyes and skin.
  • Page 6 SAFETY Welding may produce fumes and gases hazardous to health. Avoid breathing these fumes and gases.  Do not breathe the smoke and gas generated whilst welding or cutting, keep your head out of the fumes. Use enough ventilation and/or exhaust at the arc to keep fumes and gases away from the breathing zone.
  • Page 7 SAFETY Flying sparks from the welding arc, hot work piece, and hot equipment can cause fires and burns. Accidental contact of electrode to metal objects can cause sparks, explosion, overheating or fire.  Welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas.
  • Page 8 SAFETY SAFETY cylinder outlet valve and gas regulator. cylinder outlet valve and gas regulator. Use only compressed gas cylinders containing the correct shielding gas Use only compressed gas cylinders containing the correct shielding gas for the process used and properly operating regulators designed for the for the process used and properly operating regulators designed for the gas and pressure used.
  • Page 9 SAFETY maintenance. Don’t sling cables or leads around either the body or parts of the body. The electrode (rod electrode, tungsten electrode, welding wire, etc) must  Never be immersed.  Never be touched when current is flowing. When the machine is connected to the power supply, there is electricity inside the machine.
  • Page 10 SAFETY  Shield off entire welding installation. Radiation Class A Device.  Only can be used in the industrial area.  If it is used in other area, it may cause connection and radiation problems of circuit. Radiation Class B device. ...

  • Page 11: Overview

    OVERVIEW §2 Overview §2.1 Features MIG SERIES arc welding machine adopts the latest pulse width modulation (PWM) technology and insulated gate bipolar transistor (IGBT) power module, which can change work frequency medium frequency so as to replace the traditional hulking work frequency transformer with the cabinet medium frequency...

  • Page 12: Technical Data

    OVERVIEW §2.2 Technical Data Model MIG 200 Parameters Input Voltage (V) 1-230±10% Max Input Current (A) 43.5 Input Power (KW) 9.98 Welding Current (A) 30~200 No-load Voltage (V) 20% 200A Duty cycle (40℃) 60% 115A 100% 90A Fe: 0.6/0.8/0.9/1.0 Diameter (mm) Ss: 0.8/0.9/1.0 Flux-Cored: 0.6/0.8/0.9/1.0 Cooling...

  • Page 13: Working Principle

    OVERVIEW If transformer is over-heat, the heat relay inside it will open and will output an instruction to circuit board, cut AC relay and the output welding current, and brighten the over-heat pilot lamp in the front panel. At this time, the machine should be relaxed for 15 minutes to cool the fan.
  • Page 14 OVERVIEW （V） Volt-ampere characteristic The relation between the rated loading Working point voltage and welding current （A）...

  • Page 15: Panel Functions & Descriptions

    PANEL FUNCTIONS & DESCRIPTIONS §3 Panel Functions & Descriptions §3.1 Machine Layout Description Front and rear panel layout of welding machine 1. MIG torch euro connector. 2. Positive (-) output connection socket. 3. Toolkit. 4. Ground connection 5. Power switch. 6.

  • Page 16: Control Panel Of Welding Machine

    PANEL FUNCTIONS & DESCRIPTIONS §3.2 Control Panel of welding machine 1. 2T mode indicator: When 2T mode is selected, the light is on. 2. 4T mode indicator: When 4T mode is selected, the light is on. 3. Trigger mode select button: Select 2T or 4T mode. 4.

  • Page 17: Installation & Operation

    INSTALLATION & OPERATION §4 Installation & Operation §4.1 Installation & Operation for MIG Welding §4.1.1 Set up installation for MIG Welding (1) Insert the earth cable plug into the Negative (-) socket and twist to tighten. (2) Plug the MIG welding gun into MIG torch euro-connector on the front panel and tighten locking nut securely.
  • Page 18 INSTALLATION & OPERATION (6) Place wire onto spool holder - Feed wire through the inlet guide tube on to the drive roller. (7) Feed wire over the drive roller into the outlet guide tube, push the wire through approx 150mm. (8) Close down the top roller bracket and clip the pressure arm into place with a medium amount of pressure applied.

  • Page 19: Wire Feed Roller Selection

    INSTALLATION & OPERATION (10) Press the button to select 2T or 4T Trigger mode. (11) Rotate L parameter knob to adjust wire feeding speed. (12) Rotate R parameter knob to adjust voltage. (13) Rotate wave control knob to adjust wave control. §4.1.2 Wire Feed Roller Selection Feed rollers or drive rollers are used to feed the wire mechanically along the length of the welding gun.

  • Page 20: Wire Installation And Set Up Guide

    INSTALLATION & OPERATION and it has small serrations in the groove, the serrations grip the wire and assist to drive it without too much pressure from the top roller. The down side to the knurled wire feed roller on flux cored wire is it will slowly over time bit by bit eat away at the surface of the welding wire, and these small pieces will eventually go down into the liner.
  • Page 21 INSTALLATION & OPERATION (3) Fit the wire spool onto the spool holder (4) Snip the wire carefully, be sure to hold fitting the locating pin into the location hole the wire to prevent the spool uncoiling. on the spool. Replace the spool retaining Carefully feed the wire into the inlet guide nut tightly.

  • Page 22: Mig Gas Selection

    INSTALLATION & OPERATION (8) A simple check for the correct drive tension is to bend the end of the wire over hold it about 100mm from your hand and let it run into your hand, it should coil round in your hand without stopping and slipping at the drive rollers, increase the tension if it slips.

  • Page 23: Mig Torch Liner Installation

    INSTALLATION & OPERATION obtained from Argon CO mixed gas. Argon CO mix gas offers better weld ability for thin metals and has a wider range of setting tolerance on the machine. Argon 80% CO is a good all round mix suitable for most applications. §4.1.5 MIG Torch Liner Installation (1) Remove MIG torch front end parts.
  • Page 24 INSTALLATION & OPERATION (5) Carefully feed in the new liner down (6) Fit the liner retaining nut and screw the torch lead all the way to exit the only 1/2 way down. torch neck. (7) Snip the liner off 3mm past the end (8) Replace the front end parts.

  • Page 25: Torch Set Up For Aluminum Wire

    INSTALLATION & OPERATION §4.1.6 Torch Set Up for Aluminum Wire (1) Remove MIG torch front end parts. (2) Remove the liner retaining nut. (3) Carefully pull out and completely (4) Carefully unravel the new liner. remove the liner. (5) Carefully feed in the new liner in short (6) Fit the liner collet, liner O-ring forward and movements down the torch liner retaining nut.
  • Page 26 INSTALLATION & OPERATION (7) Push the liner firmly into the torch lead (8) Snip the liner off 3mm past the of end and tighten the liner retaining nut. the torch neck. (9) Replace the front end parts.

  • Page 27: Welding Parameters

    INSTALLATION & OPERATION §4.2 Welding parameters Wire speed Welding current (A) Welding volt (V) Wave control φ0.8 φ1.0 φ1.2 16~17V 17~18V 100A 17~19V 120A 17~19V 150A 18~20V 180A 20~23V 8~10 220A 21~24V 7~10 250A 22~26V §4.3 Welding parameters Process reference for CO2 butt welding of low carbon steel solid welding wire Material Wire Welding...

  • Page 28: Operation Environment

    INSTALLATION & OPERATION Process reference for CO2 corner welding of low carbon steel solid welding wire Material Wire Welding Welding Welding Gas-flow thickness diameter current voltage speed rate (MM) (MM) (CM/MIN) (L/MIN) 70~80 17~18 50~60 10~15 85~90 18~19 50~60 10~15 1.0/1.2 100~110 18~19.5...

  • Page 29: Operation Notices

    INSTALLATION & OPERATION §4.5 Operation Notices ▲Read Section §1 carefully before starting to use this equipment. ▲Connect the ground wire with the machine directly. ▲Ensure that the input is single-phase: 50/60Hz, 230V ±10%. ▲Before operation, none concerned people should not be around the working area and especially children.

  • Page 30: Maintenance & Troubleshooting

    MAINTENANCE & TROUBLESHOOTING §5 Maintenance & Troubleshooting §5.1 Maintenance In order to guarantee safe and proper operation of welding machines, they must be maintained regularly. Let customers understand the maintenance procedure of welding machines. Enable customers to carry on simple examination and inspections. Do your best to reduce the fault rate and repair times of welding machines to lengthen service life of arc welding machine.

  • Page 31: Mig Welding Trouble Shooting

    MAINTENANCE & TROUBLESHOOTING Check the screws and bolts in the machine. If any is loose, please screw it tight. If it is shaved, please replace. If it is rusty, please erase rust on all bolts to ensure it works well. Quarter- Check whether the actual current accords with the displaying value.
  • Page 32 MAINTENANCE & TROUBLESHOOTING from wind and drafts. Remove all moisture from base Moisture on the base metal. metal before welding. Remove materials like paint, Contaminated base metal. grease, oil and dirt, including mill scale from base metal. Use clean dry rust free wire. Do Contaminated MIG wire.

  • Page 33: Mig Wire Feed Trouble Shooting

    MAINTENANCE & TROUBLESHOOTING 5~10mm. Select a higher voltage range Not enough heat input. and/or adjust the wire speed to suit Reduce travel speed. Remove materials like paint, Contaminated base metal. grease, oil and dirt, including mill scale from base metal. §5.3 MIG wire feed trouble shooting The following chart addresses some of the common wire feed problems during MIG welding.
  • Page 34 MAINTENANCE & TROUBLESHOOTING Fit the correct size drive roller e.g; Incorrect drive roller size. 0.8mm wire requires 0.8mm drive roller. Wrong type of drive roller Fit the correct type roller. (e.g. knurled selected. rollers needed for flux cored wires) Worn drive rollers. Replace the drive rollers.

  • Page 35: List Of Error Code

    MAINTENANCE & TROUBLESHOOTING §5.4 List of error code Error Type Error code Description Lamp status Yellow lamp (thermal Over-heating (1st thermal relay). protection) always on. Yellow lamp (thermal Over-heating (2nd thermal relay). protection) always on. Yellow lamp (thermal Thermal relay Over-heating (3rd thermal relay).

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9134h

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