Summary of Contents for R-Tech TIG161
- Page 1 Tel: 01452 733933 Fax 01452 733939 TIG161 AC/DC INVERTER TIG WELDER OPERATION INSTRUCTIONS Version 2014-1...
- Page 3 35% duty cycle We want you to take pride in operating our TIG161 as much pride as we have taken in making this product for you. Please read all information in this manual before operation PLEASE EXAMNINE CARTON AND EQUIPMENT FOR DAMAGE IMMEDIATELY When this equipment is shipped, title passes to the purchaser upon receipt from the courier.
- Page 4 Welding Capability – Duty Cycle The R-Tech TIG161 is rated at 160 Amps at 35% duty cycle on a ten minute basis. If the duty cycle is exceeded a thermal protector will shut machine off until the machine cools.
- Page 5 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.
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Page 6: Electrical Installation
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 for proper grounding methods. The high frequency generator being similar to a radio transmitter may cause interference to radio, TV and other electronic equipment. - Page 7 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 TIG161 Inverter TIG Welder requires a 240V 50/60Hz supply. It requires a 13A supply for TIG operation and comes with a 3 metre mains cable attached.
- Page 8 Connections for TIG161 Rear machine connections Fig 1 1. On/Off Switch 2. Auxiliary 240V AC output For water cooler – Maximum load 3A – Do not connect to power tools etc 3. Fuse Holder 3A fuse for water cooling socket 4.
- Page 9 Connections for TIG (GTAW) Welding Fig 2 1. Positive power connector + Connect the earth lead to by inserting and twisting until tight and the earth clamp to work/bench. 2. Gas outlet Connect the torch gas hose 3. Negative power connector - Connect TIG Torch Dinze to power connector by inserting and twisting until tight 4.
- Page 10 Connections for STICK MMA (SMAW) Welding Fig 3 1. Positive power connector + Connect the electrode holder by inserting and twisting until tight 2. Not Used in MMA mode 3. Negative power connector - Connect the earth lead to by inserting and twisting until tight and the earth clamp to work/bench.
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Page 11: Controls And Settings
Controls and Settings Fig 4 1. Base current control This adjusts the main welding current and is shown in L.E.D (Fig 4.11) 2. Pulse peak current adjustment This sets pulse amperage and must be set above the base (main) current amperage. If set to zero pulse welding is disabled. - Page 12 Pulse width adjustment – This sets length of pulse 0.1 – 0.9 seconds 6. Down slope Down-Slope adjustment 0-10 seconds. The main welding current decreases from main amperage to minimum amperage in time selected when weld finished 7. AC – DC Selector switch This switch selects either DC for welding steels or AC for welding alloys DO NOT SWITCH WHEN WELDING AS DAMAGE TO MACHINE CAN OCCUR.
- Page 13 10. AC Squarewave frequency adjuster AC Squarewave frequency adjustment 50-250Hz. Traditional TIG welders have a fixed frequency of 60Hz, the TIG161 advanced technology allows AC frequency adjustment from 50-250hz, as you turn up the frequency the width of arc from tungsten decreases allowing more control of weld pool and an increase travel speed The pitch noise of weld will increase when AC frequency is turned up, this is normal.
- Page 14 Gas post flow adjustment 1 – 25 seconds. The gas keeps flowing after weld has finished, this cools & stops tungsten from getting contaminated. Note: Gas pre-flow time is fixed at 0.5 seconds in TIG mode but no pre-flow time will occur if the arc is restarted during post flow time as gas is already flowing.
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Page 15: Operating Machine
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 &... - Page 16 Welding in TIG mode – No Pulse – No remote foot pedal 1. Connect the TIG torch and earth lead to machine & work piece. 2. Set the TIG/MMA switch to TIG 3. Select either DC (steel) or AC (alloys) 4.
- Page 17 60 Hz The two above benefits above can be used to maintain a tight focus of arc for precise heat control & tight joint access. Because of the TIG161 Inverter Technology the following recommendations are made as a starting point.
- Page 18 Tungsten size / amperage guide All values below are based on using pure argon shielding gas. Other current values may be employed depending on the shielding gas and application ELECTRODE RATINGS Electrode Diameter (mm) 2% Thoriated on DC Pure Tungsten on DC Zirconiated 0.8% Tungsten (amps) (amps)
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Page 19: Maintenance
The troubleshooting guide is provided to help you locate possible machine malfunctions If fault / problem is not listed below check our TIG Welder Support page on our website www.r-techwelding.co.uk/support.php or contact R-Tech by phone. Contact details can be found on front of this manual and our website... -
Page 20: Tig Welding Problems
• Machine keeps overheating - Warning light is lit on machine Check if fan is running – if not contact R-Tech for repair Check the cooling vents for obstruction, blow out machine with clean dry low pressure air supply. Check for adequate ventilation around machine •... - Page 21 • Machine stuck on minimum amps when welding although higher amperage has been Make sure machine has not been set to 4-way operation as when in this mode when you press torch switch you get minimum amps and when you let go of switch machine will go to maximum amps set.
- Page 22 • No HF when torch trigger pressed, no blue spark between HF points Examine and clean HF points with clean dry low pressure air line HF PCB faulty – Contact R-Tech for repair MMA Stick welding problems • Stick electrode ‘blasts off’ when arc is struck...