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Thank you for selecting the R-Tech I-MIG 200 Compact Inverter Mig Welder.
Introduction The R-Tech I-MIG 200 is a member of our field acclaimed family of welding products. Premium features include:1. 2. 3. 4. 5. 6. 7. 8. 9. Inverter power source – more efficient to operate, provides smoother weld characteristics. Heavy duty 4-Roll geared wire feed unit for long working life and consistent wire feeding.
Safety Precautions Read entire section before starting installation WARNING! Electric Shock can kill – Only qualified personnel should perform this installation. Turn off input power at the fuse box before working on this equipment. Do not touch electrically live parts. Always connect the machine to an earthed mains supply as per national recommended standards. Select suitable location Place the welder where clean cooling air can freely circulate in and out of the front & rear louver vents.
Electrical Installation WARNING! ELECTRIC SHOCK CAN KILL Machine grounding and High Frequency Interference Protection This welder must be grounded to earth. See national electrical codes fro proper grounding methods. The high frequency generator being similar to a radio transmitter may cause interference to radio, TV and other electronic equipment. These problems may be the result of radiated interference. Proper grounding methods can reduce or eliminate this.
Turn the input power OFF at the mains switch & fuse box before working on this equipment. Have a qualified electrician install & service this equipment. Allow machine to sit for 5 minutes minimum to allow the power capacitors to discharge before working inside this equipment. Do not touch electrically live parts The I-MIG 200 Mig Welder requires a 240V 50/60Hz 1-Phase supply. It requires an 19A supply. It comes with a 3 metre mains cable attached. Connect wires according to national coding.
Connections for I-Mig 200 Rear machine connections Fig 1 1. Fuse Holder Fuse for wire feed motor protection 2. Auxiliary AC output For water cooler – Maximum load 3A – Do not connect to power tools etc 3. Gas inlet connection Connect gas hose to rear of machine and then to regulator on gas bottle. Ensure all connections are tight to ensure no loss of gas. Make sure gas bottle is secured to machine securely using supplied chain to avoid injury. 4.
Front machine connections Fig 2 1. Euro torch connector Connect Euro type Mig torch to euro torch connector, align torch connector to machine connector and then turn retaining ring clockwise to secure. Ensure torch is secured tightly to avoid weld power problems To avoid electric shock keep the Mig torch in good condition and replace if any of the insulation is damaged. 2. Earth / Workpiece connector Connect the earth lead (negative - ) to this connector.
Controls and Settings Fig3 1. Spot Welding This adjusts the amount of time the weld will last. When you press the torch switch the machine will do a single spot weld according to the time you have set and then stop, then release torch switch. Press torch switch again to do another spot weld. 2. Arc Force Gives further adjustment on weld characteristics, on traditional transformer machines this was known as choke. Low setting is ideal for automotive work.
5. On/Off Power Switch This turns the I-Mig200 Mig Welder on and off. 6. Wire Speed This adjusts the wire feed speed from 0-100% Adjust the wire speed to suit welding voltage (Fig 3.1) and job requirements When adjusting the wire feed speed a value is shown in the amperage LED (Fig 3.8) This feature allows you to record this value along with the preset welding voltage for easy setup to specific job when several different welding jobs are being done 7.
Wire Spool Adjustment Fig 4 1. Wire reel retainer This screws onto wire reel holder to secure wire reel roll 2. Wire reel tensioner nut This adjusts the tension on wire feed reel which stops the reel from over running and causing wire to come of reel (birds nest) when torch switch is released. Some times known as reel brake. This is set in factory, if adjustment is required do not over tighten as this can cause stress to wire feed motor. Fig 5 1.
2. Burnback control knob This sets amount of time welding power stays on after torch button released and wire feed has stopped. If too little Burnback is set, wire may stick to work after trigger released, if too much Burnback is set wire will Burnback into welding tip. 3. Wire tensioners Do not over tighten wire feed pressure rollers as this can cause premature motor and roller failure.
Operating machine SAFETY PRECAUTIONS WARNING! ELECTRIC SHOCK CAN KILL Do not touch electrically live parts or electrode with skin or wet clothing. Insulate yourself from work and ground Always wear dry insulating gloves WARNING! FUMES AND GASES can be dangerous Keep your head out of fumes & gases produced from welding. Use ventilation or exhaust to remove fumes & gases from breathing zone and general area.
Operating Machine 1. Ensure machine has been setup as previously stated 2. Fit reel of wire to machine, ensuring correct size rollers are fitted. For steel only use wire of 0.6mm, 0.8mm and 1.0mm, for aluminium only use wire of 0.8mm, 1.0mm, 1.2mm. DO NOT USE 1.2MM STEEL WIRE AS THIS WILL OVERLOAD MACHINE AND VOID WARRANTY 3. Feed wire into wire feed assy and into guide tube, clamp down top pressure feed rollers and set tensioner pressure. 4.
Maintenance Routine and periodic maintenance WARNING! ELECTRIC SHOCK CAN KILL Turn the input power OFF at the mains switch & fuse box and remove mains plug from socket before working on this equipment. Have a qualified electrician install & service this equipment. Allow machine to sit for 5 minutes minimum after disconnection from mains power to allow the power capacitors to discharge before working inside this equipment. Do not touch electrically live parts 1.
Output Problems • No output - Power light is not lit Check machine on/off switch is in the ‘on’ position Check Input power to machine Check plug wiring Check mains trip / fuses • No output - Fan runs - Power light is lit Check torch connections are secure and torch switch operation, try replacing mig torch. • No output - Power light is lit - Warning light shows RED colour Welding application may have exceeded recommended duty cycle, allow machine to cool down until the warning light goes out.
Wiring Diagram 18
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