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SanRex SANMIG 200MF Operator's Manual

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8.850.142
2018.9.20
INVERTER DC MIG WELDER
SANMIG 200MF
IMPORTANT: Read this Owner'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.
OPERATOR'S MANUAL
.

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  • Page 1 OPERATOR’S MANUAL INVERTER DC MIG WELDER SANMIG 200MF IMPORTANT: Read this Owner’s Manual Completely before attempting to use this 8.850.142 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 2018.9.20...

  • Page 2: Table Of Contents

    CONTENT §1 SAFETY --------------------------------------------------------------------------------------------------------- 1 §1.1 S ----------------------------------------------------------------------------------------- 1 IGNAL XPLANATION §1.2 A --------------------------------------------------------------------------------------- 1 ELDING AMAGE §1.3 T ------------------------------------------------- 5 HE KNOWLEDGE OF LECTRIC AND AGNETIC IELDS §2 SUMMARY ----------------------------------------------------------------------------------------------------- 6 § 2.1 B ----------------------------------------------------------------------------------------- 6 RIEF NTRODUCTION §2.2 M --------------------------------------------------------------------------------------- 7 ODULE XPLANATION...

  • Page 3: Safety

    SAFETY §1 SAFETY §1.1 Signal Explanation  The above signals mean warning! Notice! Running parts and getting an electric shock or thermal parts will take damage for your body or others. The corresponding notices are as follows. It is quite a safe operation after taking several necessary protection measures.
  • Page 4 SAFETY semiautomatic welding gun are also electrically “hot”.  Always be sure the work cable makes a good electrical connection with the metal being welded. The connection should be as close as possible to the area being welded. Maintain the electrode holder, work clamp, welding cable and welding machine in good, safe operating condition.
  • Page 5 SAFETY arc when welding or observing open arc welding.  Use suitable clothing made from durable flame-resistant material to protect your skin and that of your helpers from the arc rays.  Protect other nearby personnel with suitable, non-flammable screening and /or warn them not to watch the arc nor expose themselves to the arc rays or to hot spatter or metal.
  • Page 6 SAFETY an explosion even though they have been “cleaned”.  Vent hollow castings or containers before heating, cutting or welding. They may explode.  Sparks and spatter are thrown from the welding arc. Wear oil free protective garments such as leather gloves, heavy shirt, cuff less trousers, high shoes and a cap over your hair.

  • Page 7: The Knowledge Of Electric And Magnetic Fields

    SAFETY §1.3 The knowledge of Electric and Magnetic Fields Electric current flowing through any conductor causes localized Electric and Magnetic Fields (EMF). The discuss on the effect of EMF is ongoing all the world. Up to now, no material evidences show that EMF may have effects on health.

  • Page 8: Summary

    §2 SUMMARY § 2.1 Brief Introduction SANMIG 200MF welding machine adopts the latest pulse width modulation (PWM) technology and insulated gate bipolar transistor (IGBT) power module, which can change work frequency to medium frequency so as to replace the traditional hulking work frequency transformer with the cabinet medium frequency transformer.

  • Page 9: Module Explanation

    SANMIG 200MF is suitable for all positions welding for various plates made of stainless steel, carbon steel, alloyed steel, titanium, magnesium, cuprum, etc, which is also applied to pipe installment, mould mend, petrochemical, architecture decoration, car repair, bicycle, handicraft and common manufacture.

  • Page 10: Volt-Ampere Characteristic

    Current positive- feedback control §2.4 Volt-Ampere Characteristic SANMIG 200MF welding machine has an excellent volt-ampere characteristic, whose graph is shown as the following figure. The relation between the conventional rated loading voltage U and the conventional welding current I is as follows: ≤600A，U...

  • Page 11: Installation And Adjustment

    MAINTENANCE &TROUBLESHOOTING §3 Installation and Adjustment §3.1 Parameters model SANMIG 200MF Parameters 1~115±15% Input Voltage（V） 1~230±15% 33.4 24.0 27.8 Input Current（A） 26.1 20.3 30.2 3.9 2.9 3.4 Input Power（KW） Welding Current（A） 10~140 10~140 10~110...
  • Page 12 MAINTENANCE &TROUBLESHOOTING 10~200 10~200 10~200 Welding voltage(V) 10~26 No-load Voltage（V） 45（controlled） 35% 140A 50% 110A 60% 115A 60% 140A 60% 95A 100% 100A 100% 115A 100% 85A Duty cycle （40℃ 10min） 25% 200A 25% 200A 25% 200A 60% 140A 60% 140A 60% 140A 100% 100A 100% 100A...
  • Page 13 MAINTENANCE &TROUBLESHOOTING Protection class IP23 Electrode Diameter Fe：0.6/0.8/0.9/1.0 Al:0.9/1.0 Flux:0.9(self-shield)/1.0/1.2 Insulation class Dimensions（mm） 469*223*421 Weight（Kg） 17.8 =115V =33.4 =19.8 MIG(GMAW) =208V =27.5 =13.8 =230V =24.9 =12.4 =115V =27.8 =19.6 STICK(SMAW) =208V =31.5 =15.7...
  • Page 14 MAINTENANCE &TROUBLESHOOTING =230V =28.1 =14.0 =115V =24.0 =18.6 TIG(GTAW) =208V =22.4 =11.2 =230V =19.6 =9.8...

  • Page 15: Duty Cycle & Over Heat

    MAINTENANCE &TROUBLESHOOTING §3.2 Duty cycle & Over heat...

  • Page 16: Movement And Placement

    MAINTENANCE &TROUBLESHOOTING The letter “X” stands for duty cycle, which is defined as the proportion of the time that a machine can work continuously within a certain time (10 minutes). The rated duty cycle means the proportion of the time that a machine can work continuously within 10 The relation of the welding current and duty cycle for SANMIG 250MF minutes when it outputs the rated welding...

  • Page 17: Power Supply Input Connection

    §3.4 Power supply input connection SANMIG 200MF welding machines’ power supply connects to 220V. When the power supply voltage is over the safe work voltage, there are over voltage and under voltage protection inside the welder, the alarm light will on, at the same time, the current output will be cut off.

  • Page 18: Assembling The Equipment (Tig)

    MAINTENANCE &TROUBLESHOOTING §3.6 Assembling the equipment (TIG) Argon gas Shield gas Shield gas Gas hose Aero cyclinder input joint connector socket Positive output real panel front panel Negative output pipe Control cable of torch switch Welding cable Return current torch cable workpiece DC POSITIVE CONNECTION...
  • Page 19 MAINTENANCE &TROUBLESHOOTING ⚫ Workpiece is connected to the positive electrode of welding machine, and welding torch is connected to the negative electrode, which is called DC POSITIVE CONNECTION; otherwise, that is called DC NEGATIVE CONNECTION. Generally, it is usually operated in DC POSITIVE CONNECTION in TIG welding mode.

  • Page 20: Operation

    MAINTENANCE &TROUBLESHOOTING §4 Operation §4.1 Layout for the panel...
  • Page 21 MAINTENANCE &TROUBLESHOOTING SANMIG 200MF MIG gun quick connector The MIG welder’s positive polarity output. Positive output The welder’s positive polarity output.
  • Page 22 MAINTENANCE &TROUBLESHOOTING Shield gas connector Is connected to the gas input pipe of torch. Aero socket Is connected to torch switch control wire.（It has 14 leads and lead 8 - lead 9 are connected to torch switch control wire）. Negative output The welder’s negative polarity output.

  • Page 23: Control Panel

    MAINTENANCE &TROUBLESHOOTING §4.2 Control panel LCD Display Current and wire feeding Voltage/down slope/arc speed adjusting knob force adjusting knob Inductance adjusting knob Control knob...
  • Page 24 MIG, it is used to regulate the wire feeding speed. The range of the current and speed are displayed in the table. TYPE SANMIG 200MF The range of adjusting current（A） 10~200 The range of wire feeding speed（...
  • Page 25 MAINTENANCE &TROUBLESHOOTING force, welding-way, Diameter, Thickness , the Electrode and so on. When in the state of welding, it will display the setting parameters, current voltage and current. Setting welding current ARC force weldway Diameter Thickness electrode Setting arc Display the setting force current The actual current and voltage display...
  • Page 26 MAINTENANCE &TROUBLESHOOTING The direction of the page jumping while shifting the knob in the right The direction of the page jumping while shifting the knob in the right (4) The adjusting button of voltage, down slope and arc force In the different mode of welding, this knob has different function: (1) In the mode of MMA, it can adjust the arc force, the range is 0~10;...

  • Page 27: Argon Arc Welding Operation

    MAINTENANCE &TROUBLESHOOTING machine welding performance is better. NOTE: Only “Parameter selection keys” and “Adjusting dial” can be used in the welding process. Only “Rod electrode welding key”, and “Adjusting dial” can be used on MMA mode. §4.3 Argon Arc Welding Operation §4.3.1 TIG welding （4T operation）...

  • Page 28: Tig Welding (2T Operation)

    MAINTENANCE &TROUBLESHOOTING ⚫ t6～t7： Post flow time, adjustment range of post flow time: 0.1～10.0S; ⚫ t7： Electromagnetic valve is closed and stop argon flowing. Welding is finished. §4.3.2 TIG welding (2T operation) TIG short welding（2T） ： I（A） Welding current Is Loosen the welding gun switch...

  • Page 29: Welding Parameters

    MAINTENANCE &TROUBLESHOOTING will drop to 30A, which can reduce the tungsten spoilage farthestly，prolong the using life of the tungsten electrode，and prevent tungsten clipping. ○ 2 TIG /DC/HF：If the tungesten electrode touches the workpiece when welding, the current will drop to 0 within 1s, which can reduce the tungsten spoilage farthestly， prolong the using life of the tungsten electrode，and prevent tungsten clipping.

  • Page 30: The Explanation Of Welding Quality

    MAINTENANCE &TROUBLESHOOTING §4.4.2 The explanation of welding quality The relation of welding area color & protect effect of stainless steel Welding area argent , golden blue red-grey grey black color Protect effect best better good worst The relation of welding area color & protect effect of Ti-alloy Welding area white powder of bright argent...
  • Page 31 MAINTENANCE &TROUBLESHOOTING 0.25 5～30 8～50 10～70 12～90 15～150 20～200 TIG of stainless steel (single run welding) Workpiece tungsten Argon gas welding Welding Joint welding wire thickness electrode flow rate/ current speed/ form diameter/mm diameter/mm L·min (DCEP) cm·min Butt joint 20～50 Butt joint 50～80 Butt joint...

  • Page 32: Operation Environment

    MAINTENANCE &TROUBLESHOOTING 8～10 90～110 14～16 9～11 5～6 8～10 90～115 14～16 10～12 5～6 8～10 95～120 14～16 11～13 5～6 100～ 8～10 14～16 12～14 5～6 110～ 8～10 14～16 12～14 5～6 120～ 8～10 14～16 12～14 5～6 Notice: the above parameters originate from《Welding Dictionary》P167, Volume 1 of Edition 2. §4.5 Operation Environment ●...

  • Page 33: Maintenance & Troubleshooting

    MAINTENANCE &TROUBLESHOOTING §5 Maintenance & Troubleshooting §5.1 Maintenance In order to guarantee that arc welding machine works high-efficiently and in safety, it must be maintained regularly. Let customers understand the maintenance methods and means of arc welding machine more , enable customers to carry on simple examination and safeguarding by oneself, try one's best to reduce the fault rate and repair times of arc welding machine, so as to lengthen service life of arc welding machine .Maintenance items in detail are in the following table.

  • Page 34: Troubleshooting

    MAINTENANCE &TROUBLESHOOTING machine has the above problems, it should be fastened or changed. Observe that Whether the current output cable is damaged. If it is damaged, it should be wrapped up, insulated or changed. Using the dry compressed air to clear the inside of arc welding machine. Especially for clearing up the dusts on radiator, main voltage transformer, inductance, IGBT module, the Monthly fast recover diode and PCB, etc.
  • Page 35 MAINTENANCE &TROUBLESHOOTING Troubles Reasons Solution The power light damaged or connection is Check and repair the front panel and Turn on the power source, and not good iuput wire fan works, but the power pilot lamp is not on. The transformer of power is broken Repair or change the transformer Control PCB failures Repair or change the control panel...
  • Page 36 MAINTENANCE &TROUBLESHOOTING Troubles Reasons Solution Working time too Reduce duty cycle (work long intermittently) Over-voltage Power supply Using the stable power supply protection fluctuates Power supply Using the stable power supply fluctuates Low-voltage Too many machines protection Reduce the machines using power using power supply supply in the same time in the same time...

  • Page 37: Electrical Principle Drawing

    MAINTENANCE &TROUBLESHOOTING §5.3 Electrical principle drawing...

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