Duralloy TIG 191P AC/DC Owner's Manual
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Duralloy TIG 191P AC/DC Owner's Manual

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TIG 191P AC/DC
OWNER'S MANUAL
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www.duralloy.net.au | 1300 369 456

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Summary of Contents for Duralloy TIG 191P AC/DC

  • Page 1 TIG 191P AC/DC OWNER’S MANUAL www.duralloy.net.au | 1300 369 456...

  • Page 2: Table Of Contents

    4.7 O ........................24 PERATION OTICES 5 MAINTENANCE & TROUBLESHOOTING ..................25 5.1 M ..........................25 AINTENANCE 5.2 T ........................26 ROUBLESHOOTING 5.3 E ..................... 29 LECTRICAL PRINCIPLE DRAWING 6 EXPLODED VIEW DRAWING ......................30 www.duralloy.net.au | 1300 369 456...

  • Page 3: Safety

    The electrode and work (or ground) circuits are electrically “hot” when the welder is on. Do not touch these “hot” parts with your bare skin or wet clothing. Wear dry, hole-free gloves to insulate hands. www.duralloy.net.au | 1300 369 456...
  • Page 4  Read and understand the manufacturer’s instructions for this equipment and the consumables to be used, including the material safety data sheet and follow your employer’s safety practices. www.duralloy.net.au | 1300 369 456...
  • Page 5  Where compressed gases are to be used at the job site, special precautions should be used to prevent hazardous situation.  When not welding, make certain no part of the electrode circuit is touching the work or www.duralloy.net.au | 1300 369 456...
  • Page 6  Keep your head and face away from the cylinder valve outlet when opening the cylinder valve.  Valve protection caps should always be in place and hand tight except when the cylinder is in use or connected for use. www.duralloy.net.au | 1300 369 456...

  • Page 7: The Knowledge Of Electric And Magnetic Fields

     Connect the work cable to the workpiece as close as possible to the area being welded.  The people with heart-pacemaker should be away from the welding area. www.duralloy.net.au | 1300 369 456...

  • Page 8: Summary

    It can self-protect and prolong the equipment lifespan.  Double purposes: AC inverter TIG and DC inverter TIG/MMA, Excellent performance on Al-alloy、carbon steel、stainless steel、titanium. According to choosing the front panel functions, the following five welding processes can be used. www.duralloy.net.au | 1300 369 456...
  • Page 9 TIG-191P series welding machine is suitable for all positions welding for various plates made of stainless steel, carbon steel, alloyed steel, titanium, aluminium. MMA——Manual Metal Arc welding. PWM——Pulse-Width Modulation. IGBT——Insulation Gate Bipolar Transistor. TIG——Tungsten Insert Gas welding. www.duralloy.net.au | 1300 369 456...

  • Page 10: Working Principle

    U2 and the conventional welding current I2 is as follows: （V） Volt-ampere characteristic The relation between the conventional loading Working voltage and welding current point （A） When I ≤600A，U =10+0.04I (V); When I =34(V). ＞600A,U www.duralloy.net.au | 1300 369 456...

  • Page 11: Installation And Adjustment

    Adjustment range of 0.1～10 post-gas time（S） Clearance effect（%） 20～50 Efficiency 10% 200A 10% 180A Duty cycle 60% 82A 60% 73A 100% 63A 100% 57A Protection class IP21S Insulation class Dimensions of Machine 475X185X325 （mm） （L×W×H） Weight (Kg) www.duralloy.net.au | 1300 369 456...

  • Page 12: Duty Cycle & Overheat

    When the machine gets to the destination, it needs to be placed on a flat surface. Any movement may result in the potential danger or substantive hazard, so please make sure that the machine is on the safe position before using it. www.duralloy.net.au | 1300 369 456...

  • Page 13: Power Supply Input Connection

    Ensure the machine is plugged into a 240v 10amp supply. 3.5 Polarity Connection（MMA）. MMA (DC): Choosing the connection of DCEN or DCEP according to the different electrodes. Please refer to the electrode manual. MMA: requirements for polarity connection. www.duralloy.net.au | 1300 369 456...

  • Page 14: Assembling The Equipment (Tig)

    , please email or phone according to the accessory codes.  When AC/DC welding machines are operated in HF ignition method, the ignition spark can cause interferences in equipment near the welding machine. Be sure to take specially safety precautions or shielding measures. www.duralloy.net.au | 1300 369 456...

  • Page 15: Operation

    Power source switch Switch to “ON”, the welder is turned on, while switch to “OFF”, the welder is turned off. Power source input connect power source. Shield gas input connect the gas hose while the other end is connected to argon regulator & gas cylinder. www.duralloy.net.au | 1300 369 456...

  • Page 16: Control Panel

    TIG191P AC/DC OWNER’S MANUAL 4.2 Control panel (1) Display (3) AC/DC selecting key (2) Mode selecting key (4)2T/4T Selection (5)Selection & Adjustments key (Press) (6) Arc force/Hot start www.duralloy.net.au | 1300 369 456...
  • Page 17 (4) Parameter selection keys (Press to adjust) (8) Adjusting dial If the parameter indicator lights up, then the selected parameter can be altered on adjusting dial. Available parameters where 2T and 4T mode have been selected: www.duralloy.net.au | 1300 369 456...
  • Page 18 Important! Only selectable when “pulse key” has been pressed. Hz: Pulse frequency Unit Setting range 0.5—200 Factory setting Important! Only selectable when “pulse key” has been pressed. D slope : Downslope time Unit Setting range 0—5 Factory setting www.duralloy.net.au | 1300 369 456...
  • Page 19 The control panel indicates which position has been reached in the welding process by brightening the light. NOTE: Only “Parameter selection keys” and “Adjusting dial” can be used in the welding process. Only “Rod electrode welding key”, “Adjusting dial” and “AC/DC selecting key” can be used on MMA mode. www.duralloy.net.au | 1300 369 456...

  • Page 20: Argon Arc Welding Operation

     t4～t5： The output current slopes down to the crater current. The down-slope time can be adjusted.  t5～t6： The crater current time.  t6： Press the gun switch, stop arc and keep argon flowing. www.duralloy.net.au | 1300 369 456...

  • Page 21: Tig Welding (2T Operation)

    Post-gas time, after the arc is turned off. You can adjust it (0.1~10s) through turning the knob on the front panel.  electromagnetic gas valve turned off, the shield gas stops to flow, and welding is finished. www.duralloy.net.au | 1300 369 456...
  • Page 22  The spark ignition works better if you keep the 3mm distance from the work piece to the tungsten electrode during the ignition. Note: When select AC output, the current and the wave form are as same as the above, but output polarity changes alternately. www.duralloy.net.au | 1300 369 456...

  • Page 23: Welding Parameters

    The corresponding relationship between gas nozzle diameter and electrode diameter Gas nozzle diameter/mm Electrode diameter/mm 1.6 or 2.4 11.1 Notice: the above parameters originate from《Welding Dictionary》P142, Volume 1 of Edition 2. Gas nozzle and the shield gas flow rate www.duralloy.net.au | 1300 369 456...
  • Page 24 Joint form diameter/m current speed/ diameter/m rate/ (DCEP) cm·min L·min Butt joint 20～50 Butt joint 50～80 Butt joint 65～105 Corner 75～125 joint Butt joint 85～125 Corner 95～135 joint Butt joint 100～135 Corner 115～145 joint www.duralloy.net.au | 1300 369 456...
  • Page 25 Flange or butt welding by 1.6～2.0 50～80 7～9 － one side Butt welding 2～2.5 2～3 90～120 8～12 8～12 － 2～3 － 150～180 8～12 8～12 V-groove butt 180～ － 10～15 8～12 welding 3～4 180～240 10～15 10～12 － www.duralloy.net.au | 1300 369 456...

  • Page 26: Operation Environment

    4.7 Operation Notices. ● Read 1 carefully before attempting to use this equipment ● In case closing the power switch, no-load voltage may be exported. Do not touch the www.duralloy.net.au | 1300 369 456...

  • Page 27: Maintenance & Troubleshooting

    Observe that whether the display value of LED is intact. If the display number is not intact, please replace the damaged LED. If it still does not work, please maintain, or replace the display PCB. www.duralloy.net.au | 1300 369 456...

  • Page 28: Troubleshooting

     Only professional maintenance personal who is authorized by us could overhaul the machine!  Guarantee to shut off the arc welding machine’s power before turn on the outline of the equipment! www.duralloy.net.au | 1300 369 456...
  • Page 29 There is not Change HF transformer or HF circuit The HF igniting board does not work. board spark on the igniting The distance between the discharger is Adjust this distance (about 0.7mm). board. too short. www.duralloy.net.au | 1300 369 456...
  • Page 30 The alarm lamp on the front panel Working time too Reduce duty cycle (work protection：EH is EH/EC long intermittently) Over-current Unusual current in Check and repair the main circuit and the main circuit drive Pr6 protection：EC www.duralloy.net.au | 1300 369 456...

  • Page 31: Electrical Principle Drawing

    TIG191P AC/DC OWNER’S MANUAL 5.3 Electrical principle drawing. www.duralloy.net.au | 1300 369 456...

  • Page 32: Exploded View Drawing

    Radiator 5 Aviation socket Quick connector socket Fan bracket Gas connector Plastic rear panel Quick connector socket Solenoid valve Metal base plate Power switch High frequency board Metal rear panel Resistance wire clip www.duralloy.net.au | 1300 369 456...
  • Page 33 • Ancillary Equipment - 3 months The Obligation of Duralloy Industrial Supply under this warranty is limited to the circumstance set out above and is subject to: • The customer being able to provide proof of purchase of the relevant equipment.
  • Page 34 | 1300 369 456...

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