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 We are dedicated to providing you with the best possible equipment and service to meet the demanding

jobs that you have.  We want to go beyond delivering a satisfactory product to you.  That is the reason we 
offer technical support to assist you with your  needs should an occasion occur.  With proper use and care 
your product should deliver years of trouble free service. 

 
 

Safe operation and proper maintenance is your responsibility. 
 
 We have compiled this operator's manual, to instruct you in basic safety, operation and maintenance of 

our product to give you the best possible experience.   Much of welding and cutting is based upon 
experience and com-mon sense.  As thorough as this welding manual may be, it is no substitute for either.  
Exercise extreme caution and care in all activities related to welding or cutting.  Your safety, health and even 
life depends upon it.  While accidents are never planned, preventing an accident requires careful planning. 

Please carefully read this manual before you operate machine. 

 This manual is not only for the use 

of the machine, but to assist  in obtaining  the best performance out of your unit.  Do not operate the  unit 
until you have read this manual and you are thoroughly familiar with the safe operation of the unit.  If you feel
you need more information please contact our Support.  

 
 The warranty does not cover improper use, maintenance or consumables. 

 Do not attempt to alter or 

defeat any piece or part of  your unit, particularly any safety device.

 Keep all shields and covers in 

place during unit operation should an unlikely failure of internal components result in the possible presence 
of  sparks and explosions.  If a failure occurs, discontinue further use until mal-functioning parts or 
accessories have been repaired or replaced by qualified personnel. 

 

Note on High Frequency electromagnetic disturbances: 

Certain welding and cutting processes generate High Frequency (HF) waves.  These 

waves may disturb sensitive electronic equipment such as televisions, radios, computers, cell 
phones, and related equipment.  High Frequency may also  interfere with  fluorescent lights.  
Consult with an electrician if disturb-ance is noted.  Sometimes, improper wire routing or poor 
shielding  may be the cause. 

 

HF can interfere with pacemakers. 

See EMF warnings in following safety sec-tion for 

further information.  Always consult your physician before entering an area known to have 
welding or cutting  equipment if you have a pacemaker. 

MOVING PARTS can cause injury. 

Moving parts, such as fans, rotors, and belts can cut fingers and hands and catch loose 
clothing. 
Do not put your hands near the engine fan. Do not attempt to override the governor or idler by 
pushing on the throttle control rods while the engine is running. 

SAFETY PRECAUTIONS 

Summary of Contents for Digi-Tig320ACDC

Page 1: ...MACHINE Suitable for 3x208V or 3x480V Operators s Manual Safety Setup and General Use Guide REV 2 0 00140 16 Issue Date May 1 9 2016 Manual No 0 1530 EMPRESAS CARBONE S A Calle 5ta Rio Abajo Panam Pan...

Page 2: ...erformance Should you have an issue or question concerning your unit please contact performance technical support available through the main company headquarters available in your country For best ser...

Page 3: ...________ Where Purchased _____________________________ Whenever you request replacement parts or information on this equipment please always supply information you have recorded above This product is...

Page 4: ...e information please contact our Support The warranty does not cover improper use maintenance or consumables Do not attempt to alter or defeat any piece or part of your unit particularly any safety de...

Page 5: ...tection is available exclude them from the work area Even brief expo sure to the rays from the welding arc can damage unprotected eyes Always wear hearing protection because welding and cutting can be...

Page 6: ...s nose or throat are signs that you need to increase ventilation Stop immediately and relocate work if necessary until adequate ventilation is ob tained Stop work completely and seek medical help if i...

Page 7: ...materials including rags and spare clothing away from area Keep all flammable fuels and liquids stored separately from work area Visually inspect work area when job is completed for the slightest trac...

Page 8: ...pability B 2 Limitations B 2 Control Panel B 3 Controls and Settings 2 Step and 4 Step Tig Sequence B 3 B 6 Operating steps B 7 Welding in Tig mode B 7 Welding Polarity B 7 DC Electrode Negative Polar...

Page 9: ...usting Range 10 320A SP AC balance 10 90 AC Square Wave Frequency 30 250Hz AC TIG Rated Duty Cycle 35 Current Adjusting Range 5 320A DC TIG Rated Duty Cycle 35 Peak Current 5 320A Base peak Current ra...

Page 10: ...1 National Electric Code Use a Super Lag type fuse or circuit breaker with a delay in tripping action Models with NEMA 6 50P plug may be used with a 50 amp protected 6 50R receptacle or with a maximu...

Page 11: ...blems STACKING The machine cannot be stacked TRANSPORT UNLOADING Never underestimate the weight of the equipment Never make the cargo pass or leave it suspended over people or things Neither let the e...

Page 12: ...to an earth ground close to the work clamp using one of the following methods a A metal underground water pipe in direct contact with the earth for ten feet or more b A 3 4 19mm galvanized pipe or a 5...

Page 13: ...g to the National Electrical Code and local codes Do not remove or defeat the purpose of the power cord ground pin RECONNECT PROCEDURE The Inverter machine auto reconnects to either 115V or 230V suppl...

Page 14: ...per procedure on grounding the work clamp and work piece SHIELDING GAS CONNECTION Obtain the necessary inert shielding gas usually argon Connect the cylinder of gas with the pressure regulator and flo...

Page 15: ...der electrically hazardous conditions such as welding in wet areas or on or in the workpiece FUMES AND GASES can be dangerous Keep your head out of fumes Use ventilation or exhaust at the arc or both...

Page 16: ...s many industry standard items such as TIG torches adapted for Twist Mate hoses PROCESS LIMITATIONS The Precision TIG machines are not recommended for arc gouging due to it s limited output capacity a...

Page 17: ...er 16 output Ground clamp 17 argon out 18 argon arc control or remote control 19 Amp Adjustment slector remote control panel pedal finger torch 20 power switch 21 argon inlet 22 power supply 23 safety...

Page 18: ...e presettable The default start current is 15 amps and the default upslope time is 0 2 seconds 2 Release the Arc Start Switch to stop welding The machine will now decrease the output current at a cont...

Page 19: ...ntrol knob is used increase or decrease parameter values To increase adjustment speed push in on the knob while turning 15 output Electrode Connection Positive For quick disconnect system using Twist...

Page 20: ...EN50199 EN60974 10 international standards and contains the following information a Manufacturer s name and address b Trademark c Model No Serial number The welding power source comprises a frequency...

Page 21: ...on with the output and remain on continuously until the remote control is released WELDING POLARITY DC Electrode Negative Polarity Direct Current Straight Polarity see FIGURE B 4 While Welding there...

Page 22: ...gas Considering the fluidity of molten copper the use of backup support may prove useful FILLER MATERIAL In order to avoid the oxidation of the molten material filler materials containing phosphorus...

Page 23: ...2 4 Up to MAX A Up to 160 A Up to MAX A 13 17 6 8 11 15 5 7 1 8 3 2 X Up to MAX A X 15 23 7 11 11 15 5 7 Tungsten electrodes are classified as follows by the American Welding Society AWS Pure EWP gree...

Page 24: ...aces a lot of heat on the tungsten In a balanced wave where both EP and EN are equal in time length 50 penetration is reduced and over cleaning results in wide etch lines running parallel to the side...

Page 25: ...l and service this equipment Turn the input power off at the fuse box disconnect or unplug supply lines and allow machine to sit for five minutes minimum to allow the power capacitors to discharge bef...

Page 26: ...ator may have to turn the cur rent control up and depress the Ampcontrol approximately 1 4 of the way down Depressing the Ampcontrol to its minimum position may not start the arc Also if the current c...

Page 27: ...B 13 OPERATION B 13...

Page 28: ...B 14 OPERATION B 14...

Page 29: ...B 15 OPERATION B 15...

Page 30: ...the power switch is turned on 5 Turn the power switch to ON 6 Adjust the Current Control to the desired amps 7 Strike an arc and weld NOTE When the MMA TIG switch is set to MMA the output is always on...

Page 31: ...nd automatic amp response needed to maintain the arc when voltage falls below the threshold 6011 Cellulose electrodes may require more arc force control than other rods but each brand and size will we...

Page 32: ...quire no maintenance 7 SPARK GAP ADJUSTMENT The spark gap 020 5mm is set at the factory to a gap of 0 015 inches 0 4mm See Figure D 1 This setting is adequate for most applications Where less high fre...

Page 33: ...This column describes possible symptoms that the machine may exhibit Find the listing that best describes the symptom that the machine is exhibiting Step 2 POSSIBLE CAUSE The second column labeled PO...

Page 34: ...duty cycle Allow the unit to run until the fan cools the unit and the yellow light goes out Machine does not respond no gas flow no high frequency and no open circuit voltage when arc start switch or...

Page 35: ...ignificantly when AC Balance control knob is set near or at max penetration or when Output control is set near or at full output 1 Input power to machine doesn t have sufficient capacity Try changing...

Page 36: ...2 Tungsten not sharp when welding in DC mode 3 Gas shielding may be insufficient Increase gas flow reduce tungsten stick out beyond gas cup 4 Check for contaminated gas or leaks in the gas line torch...

Page 37: ...k Spark Gap operation and setting 0 5mm High frequency spark is present at tungsten electrode but operator is unable to establish a welding arc Machine has normal open circuit voltage refer to Technic...

Page 38: ...your local welder gas distributor When AC TIG welding the arc is erratic and there is a loss of cleaning of the work piece 1 Tungsten electrode may be too small for process Use a larger diameter tung...

Page 39: ...er diameter electrode 2 Arc too short Excessive spatter 1 Long arc 2 High current Craters 1 Fast movement of the electrode away from piece Inclusions 1 Poor cleanliness or distribution of the Welding...

Page 40: ...1 NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual If the diagram is illegible write to the Service Department for a replacement Give the equipme...

Page 41: ...ustable foot control 1 Adjustable finger control torch 1 optional accessory Operation instructions 1 Certificate of quality 1 No Certificate of quality Name of product AC DC TIG WELDING Type of produc...

Page 42: ...electrically live parts or electrode with skin or wet clothing Insulate yourself from work and ground No toque las partes o los electrodos bajo carga con la piel o ropa moja da Aislese del trabajo y...

Page 43: ...e Be und Entl ftung des Arbeitsplatzes Mantenha seu rosto da fuma a Use ventila o e exhaust o para remover fumo da zona respirat ria Turn power off before servicing Desconectar el cable de ali mentaci...

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