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When the trigger mode is in the 4 step position the following sequence will occur 

Press and hold the tig torch switch to start sequence. 

The machine will open gas valve to start flow of shield gas, after a 0.5 seconds pre-flow 

time to purge air from torch hose the welding output of machine will be turned on and the 

arc will be started. After the arc is started the output current will be at start (min) current 

This condition can be maintained as long as required. 

Release the tig torch switch to go to step 2 

The machine will now increase output to base (main) current in time set by slope-up. 

Press and hold the tig torch switch when main weld is complete 

The machine will now decrease the welding output current to finish (min) in down-slope 

time set. Once at finish (min) output you can release the Tig torch switch to end weld the 

gas post-flow will continue to run for set time. 

9.

Gas post flow adjustment

Adjustable from 1 – 10 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.

10.

Base current control (Pulse min current adjustment

)

This sets pulse minimum base amperage.

I.E if base current is set to 70amps and Main current is set to 105 amps, the machine will

Summary of Contents for TIG200DV

Page 1: ...www r techwelding co uk email sales r techwelding co uk Tel 01452 733933 Fax 01452 733939 TIG200DV TIG WELDER OPERATION INSTRUCTIONS Version 2014 1...

Page 2: ...2...

Page 3: ...ar of machine Product TIG200DV Serial No ___________________________________ Date of Purchase _____________________________ Where Purchased _____________________________ Whenever you request replaceme...

Page 4: ...put ratings and duty cycle as per machine specifications with thermostat protection of the output coils and rectifiers Welding Capability Duty Cycle The R Tech TIG200DV is rated at 60 duty cycle on a...

Page 5: ...articles towards the welder An abundance of conductive material can cause plant failure Stacking This machine cannot be stacked Transport Unloading Never underestimate the weight of equipment never mo...

Page 6: ...these contributing factors in mind installing equipment as per following instructions should minimize problems 1 Keep the welder input power lines as short as possible and enclose as much of them as...

Page 7: ...lectrically live parts The TIG200DV Inverter Tig Welder requires a 240V 50 60Hz supply It requires a 22A supply for Tig operation and for MMA welding It comes with a 2 metre mains cable attached Conne...

Page 8: ...is If experiencing localized interference when using machine connect workbench to this point using correct graded earth wire not normally used 3 Gas input connector Connect input gas hose ensuring con...

Page 9: ...rting and twisting until tight and the earth clamp to work bench 4 Torch control socket 7 Pin Connect torch control plug To avoid a High Frequency shock keep the Tig torch in good condition and replac...

Page 10: ...gative power connector Connect the earth lead to by inserting and twisting until tight and the earth clamp to work bench 2 Gas outlet Not used in MMA mode 3 Positive power connector Positive power con...

Page 11: ...current selected in time selected when weld started 2 Down slope Down Slope adjustment 0 5 seconds The main welding current decreases from main amperage to minimum amperage in time selected when weld...

Page 12: ...is in the 2 step position the following sequence will occur Press and hold the Tig torch switch to start sequence The machine will open gas valve to start flow of shield gas after a 0 5 seconds pre f...

Page 13: ...e up Press and hold the tig torch switch when main weld is complete The machine will now decrease the welding output current to finish min in down slope time set Once at finish min output you can rele...

Page 14: ...LED turns orange during operation you have exceeded the duty cycle allow machine to cool down light will go off and you will be able to weld again If LED turns green during operation the machine has s...

Page 15: ...n 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 WARNING WELDING SPARKS can cause fire or ex...

Page 16: ...ork resulting in a smaller heat affected zone which results in fewer deformations and reduced chance of cracking There are no set rules for pulse welding as this is down to personal choice by the weld...

Page 17: ...itched to MMA mode output terminals are always live take care and do not touch electrode and earth by person at same time otherwise electric shock will occur The foot pedal has no affect on welding cu...

Page 18: ...orch and cables in good condition 4 Clean air vents to ensure proper air flow and cooling 5 The fan motor has sealed bearings which requires no maintenance Troubleshooting Service repair should only b...

Page 19: ...tput Power light is lit Gas at torch end when trigger pressed Check torch condition possible break in torch power cable replace torch Machine keeps overheating Warning light is lit on machine Check if...

Page 20: ...gas hoses Black areas along weld bead 1 Clean any oily or organic contamination from the work piece 2 Tungsten electrode contaminated Replace or sharpen 3 Check for leaks or contamination on gas hoses...

Page 21: ...ing current set to high reduce amperage or use thicker electrode Contaminated electrodes or material Electrode sticks in weld puddle Welding current is set too low Arc is too short keep electrode furt...

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