background image

34

 

GUIDE TO MMA WELDING

 

 

 Before starting any welding activity ensure that you have suitable eye protection and 

 

 protective clothing. 

 

 Also take the necessary steps to protect any persons within the welding area.

 

 

MMA arc striking 

 

 

Tap Technique 

-

 

Lift the electrode upright and bring it down to strike the work piece. After forming a 

short circuit, quickly lift up about 2 ~ 4mm and arc will be ignited. This method is difficult to master. 

 

Scratch technique 

-

 

Drag the electrode and scratch the work piece as if striking a match. Scratching the 

electrode may cause the arc to burn along the scratch path, so care should be taken to scratch in the  
weld zone. When the arc is struck adopt the correct welding position. 

 

 

Electrode positioning 

 

 

Horizontal or flat position 

 

 

The electrode should be positioned at right angles to the plate and inclined in the direction of travel at 
around 10º ~ 30º. 

 

 

 

 

Summary of Contents for EVO 2.0 ET-200PACDC

Page 1: ...1...

Page 2: ...rect information should you require assistance or spare parts Date purchased ________________________________________ From where ________________________________________ Serial number ________________...

Page 3: ...w 11 Technical Specifications 12 Description of Controls 13 Installation 14 Control Panel 17 Remote Control Option wired and wireless 28 MMA Setup 29 Operation MMA 30 Guide to MMA Welding 33 MMA Weldi...

Page 4: ...g should be regularly checked for damage and overheating Never use worn damaged under sized or poorly jointed cables Insulate yourself from work and earth using dry insulating mats or covers big enoug...

Page 5: ...cutting is taking place Wear suitable protective flame resistant clothing gloves and footwear Ensure adequate extraction and ventilation is in place prior to welding and cutting to protect users and...

Page 6: ...ding fume Ensure the welding zone is well ventilated and provision should be made for suitable local fume extraction system to be in place If ventilation is poor wear an approved airfed welding helmet...

Page 7: ...ated by high currents may affect the operation of pacemakers or electronically controlled medical equipment Wearers of vital electronic equipment should consult their physician before beginning any ar...

Page 8: ...permanent damage to your hearing Noise from cutting and welding equipment can damage hearing Always protect your ears from noise and wear approved and appropriate ear protection if noise levels are hi...

Page 9: ...upplied within your new Jasic EVO product package will be the following items with each model Use care when unpacking the contents and ensure all items are present and not damaged If damage is noted o...

Page 10: ...ndary winding U2 Load voltage H Insulation class Do not dispose of electric waste with other ordinary waste Electric shock risk warning Current unit A Overheat protection indicator Overcurrent protect...

Page 11: ...ctive Balancing Air Passage ABAP Optional TFT LCD display is available to offer the user an enhanced operating experience Inbuilt power factor correction PFC and generator friendly Wide Voltage mains...

Page 12: ...0A 30 TIG 200A 25 Arc force current range A 0 40 Hot start current range A 0 80 Pre flow time S 0 3 Post flow time S 0 15 Initial and final current A 5 160 5 200 Base current A 5 160 5 200 Up down slo...

Page 13: ...power switch 10 Shielding gas inlet connector 11 Cooler control socket outlet 12 Rear panel with integrated cooling vents 13 Input power cable Front control panel view Jasic TIG ET 200P ACDC 14 TIG P...

Page 14: ...over Never use the machine on its side Most metals including stainless steel can give off toxic fume when welded or cut To protect the operator and others working in the area its important to have ade...

Page 15: ...clean the cylinder valve outlet Match the regulator to cylinder and before connecting ensure the regulator and the regulator inlet and cylinder outlet match Connect the regulator inlet connection to...

Page 16: ...required to fit the optional remote interface module Installation of the wireless receiver module 1 Remove the plastic cap A shown in the image right and fit the wireless receiver module as shown 2 R...

Page 17: ...switch contact or non contact ignition When you press this switch you either select HF arc start ignition or lift arc ignition in TIG mode and the matching indicator will illuminate 6 TIG torch trigg...

Page 18: ...12 MMA parameter selection zone By pressing the adjustment switch you will have access to adjust MMA parameters of MMA welding current hot start and arc force control 13 TIG standard or TIG pulse fun...

Page 19: ...and peak welding current can be adjusted from 5 200amps or 5 160amps in 115V mode shown on the control panel display above The base current indicator when the indicator is on pulse mode only the lowe...

Page 20: ...Available in AC or DC TIG welding mode When in TIG AC mode the AC frequency indicator will illuminate to indicate that AC frequency can be adjusted and between the values of 20 250Hz Available in AC T...

Page 21: ...ng process you have selected by rotating the control knob this allows the operator to select the required parameters of that welding process then by pressing the control knob the parameter LED will il...

Page 22: ...nition When in this mode you place the tungsten in contact with the work piece press the torch trigger then lift the torch slowly to initiate the TIG welding arc 3 TIG torch trigger modes Torch trigge...

Page 23: ...according to your selection Smart gas feature Pressing the Smart Gas switch will enable this feature which when active the indicator will illuminate to show that the machine is in smart gas mode This...

Page 24: ...maged Pins 1 and 2 is the power output connections for the water cooler Pins 3 and 4 is the fault signal input connections no coolant flow signal To enter water cooler mode press the water cooler butt...

Page 25: ...nected If the machine is not used within a set period of time 10 minutes for example the machine will then enter a standby state where the unit powers down and only the middle bar of the first digit o...

Page 26: ...taken place Factory settings are as shown in the table below Welding Parameter Unit DC TIG DC Pulse TIG MMA AC TIG AC Pulse TIG Mixed TIG Pre flow time Seconds 0 5 0 5 0 5 0 5 0 5 Initial current Amps...

Page 27: ...rol mode is on At the same time the blue indicator of wireless receiver module will be constant on and the welder display window displays OK After successful pairing the welding current can be adjuste...

Page 28: ...revious page to activate remote press the remote button and the remote LED will illuminate as shown left this indicates that the machine is ready to be used with a remote control device Pressing the r...

Page 29: ...ys consult the electrode manufacturer s data sheet if you have any doubts MMA welding 1 When connecting welding cables ensure that the machines ON OFF mains switch is turned off and never connect the...

Page 30: ...s supply and turn ON the machine the power switch is located at the rear panel of the machine place it to the ON position the panel indicator will then light up the fan may start to rotate as the weld...

Page 31: ...ob until the desired ignition amps is shown on the display above Rotating the control dial clockwise or anticlockwise will increase or decrease the start current To select MMA arc force start current...

Page 32: ...r supply there are DCEN DC electrode negative and DCEP DC electrode positive connections The DCEN connection refers to the welding electrode connected to the negative electrode of the power supply and...

Page 33: ...n as the electrode contacts the work piece The welder should always ensure a good connection of the work clamp The nearer the clamp is placed to the welding area the better When the arc is struck the...

Page 34: ...cuit quickly lift up about 2 4mm and arc will be ignited This method is difficult to master Scratch technique Drag the electrode and scratch the work piece as if striking a match Scratching the electr...

Page 35: ...rode 1 The electrode feeding to the molten pool along axes 2 The electrode swing right and left 3 The electrode moving in the weld direction The operator can choose the manipulation of electrode based...

Page 36: ...ross rather than to or from your body The electrode holder lead should always be clear of any obstruction so that you can move your arm freely along as the electrode burns down Some elders prefer to h...

Page 37: ...el speed Ensure the arc is on the leading edge of the weld puddle Porosity Small holes or cavities on the surface or within the weld material Work piece dirty Electrode is damp Arc length is excessive...

Page 38: ...socket and rotate the locking ring clockwise to secure in place Insert the dinse plug on the work return cable into the socket on the front panel of the machine and rotate clockwise to tighten Attach...

Page 39: ...ED will then start to flash by rotating the adjustment control dial will adjust the pre flow time shown in the display window The pre flow adjustment range is 0 3 seconds To select the initial start c...

Page 40: ...o flash by rotating the adjustment control dial will adjust the post flow time shown in the display window The post flow adjustment range is 0 15 seconds Please Note If you have Smart Gas set to ON th...

Page 41: ...select and set TIG pulse frequency rotate the dial until the pulse Hz LED is lit then press the dial and the Hz LED will then start to flash by rotating the adjustment control dial will adjust the pul...

Page 42: ...ntrol panel image above as reference Depends on material thickness 30A per mm eg 3mm 90A Parameter Units Adjustable Range Guide Setting User Setting Job Material PRE GAS TIME Seconds 0 3 0 5 START CUR...

Page 43: ...pends on material thickness 30A per mm eg 3mm 90A Set base current to 50 of your peak welding current Parameter Units Adjustable Range Guide Setting User Setting Job Material PRE GAS TIME Seconds 0 3...

Page 44: ...shown left Select the AC square wave mode by pressing the selection button until the TIG AC square wave LED is illuminated as shown right See page 46 for further information on alternative AC wavefor...

Page 45: ...ing the adjustment control dial will adjust the pulse ratio rate between 5 95 in AC mode Please Note The parameter lit LED will always default back to the peak amps setting when no other control have...

Page 46: ...vides good directional control Square wave offers improved cleaning of the oxide film on aluminium more power and penetration giving fast puddle freezing along with deep penetration and fast travel sp...

Page 47: ...AC Waveform selection When in MIX AC TIG mode pressing the AC button will allow you to scroll through the 3 wave types used in AC welding Square wave Triangle wave and Sine wave These 3 waveforms are...

Page 48: ...el image above as reference Depends on material thickness 30A per mm eg 3mm 90A Parameter Units Adjustable Range Guide Setting User Setting Job Material PRE GAS TIME Seconds 0 3 0 5 START CURRENT Amps...

Page 49: ...Adjustable Range Guide Setting User Setting Job Material PRE GAS TIME Seconds 0 3 0 5 START CURRENT Amps 5 200 20 UP SLOPE TIME Seconds 0 10 0 PEAK WELDING AMPS Amps 5 200 User defined BASE AMPS Amos...

Page 50: ...lue the welding output is cut off and the gas valve will close once the post flow time ends this is the end of the welding process 4T latch trigger control The 4T LED will illuminate when the power so...

Page 51: ...gain Cycle means the welding current varies between the final arc current value and the welding current value To extinguish the welding arc press and release the torch trigger briefly within 1 5 of a...

Page 52: ...ng welding indicates that the parameter is optional and indicates that it is not optional Welding Mode Trigger Mode Pre flow time Initial Current Upslope Time Peak Current Base Current Downslope Time...

Page 53: ...necessary steps to protect any persons within the welding area After connecting the welding leads as detailed above plug your machine into the mains supply and turn ON the machine the power switch is...

Page 54: ...visibility of the arc A much larger diameter nozzle can be used which will produce a large blanket of shielding gas This can be very useful in welding material like titanium The gas lens will also ena...

Page 55: ...ode Colour Chart DC Tungsten Electrode Current Ranges Tungsten electrode preparation DC When welding at low current the electrode can be ground to a point At higher current a small flat on the end of...

Page 56: ...an use both non contact and contact methods to provide arc starting Depending on the Jasic model the options are indicated on a selector switch on the front control panel of the power source The most...

Page 57: ...200P Lift TIG mode utilises the TIG torch switch operation mode which starts the process with the internal gas valve opening to start the gas flow first Set the TIG welding current and other TIG weldi...

Page 58: ...en the arc is established the current flows in the circuit and the heat distribution in the arc is around 33 in the negative side of the arc the welding torch and 67 in the positive side of the arc th...

Page 59: ...mm DC 1 6 2 4mm 5 9 Butt 80 110 3 32 2 4mm 1 6 2 4mm DC 1 6 2 4mm 5 9 Corner 80 110 3 32 2 4mm 1 6 2 4mm DC 1 6 2 4mm 5 9 Fillet 90 120 3 32 2 4mm 1 6 2 4mm DC 1 6 2 4mm 5 9 Lap 90 120 3 32 3 2mm 2 4m...

Page 60: ...d one cycle The number of times a cycle is completed within one second is referred to as the frequency In the UK the frequency of alternating current supplied by the mains network is 50 cycles per sec...

Page 61: ...10 Butt 80 110 3 32 2 4mm 1 6 2 4mm AC 1 6 2 4mm 8 10 Corner 80 110 3 32 2 4mm 1 6 2 4mm AC 1 6 2 4mm 8 10 Fillet 90 130 3 32 2 4mm 1 6 2 4mm AC 1 6 2 4mm 8 10 Lap 95 130 3 32 3 2mm 2 4mm AC 2 4mm 8 1...

Page 62: ...amage to the electrode due to overheating However this can be eliminated by the use of balance control which allows the time of the positive half cycle to be varied within the cycle time I0 Initial cu...

Page 63: ...to the corresponding contents in AC square wave TIG welding For the pulse frequency and pulse duration ratio users may refer to the corresponding contents in DC pulsed TIG welding The pulse frequency...

Page 64: ...to use a smaller size tungsten Maximum penetration This can be achieved by placing the control to a position which will enable more time to be spent in the negative half cycle with respect to the pos...

Page 65: ...65 TIG TORCH SPARE PARTS LIST TIG Welding Torch Air Cooled Model JE29 ERGO Type WP26 Rating 200A DC 150A AC 60 Duty Cycle EN60974 7 0 5mm to 4mm Electrodes 9 PIN Torch plug Pt No JSG PLUG 9PIN TBC...

Page 66: ...66 TIG TORCH SPARE PARTS LIST TIG Welding Torch Water Cooled Model JE83 ERGO Rating 350A DC 260A AC 100 Duty Cycle EN60974 7 0 5mm to 4 0mm Electrodes 9 PIN Torch plug Pt No JSG PLUG 9PIN TBC...

Page 67: ...use No operation when torch switch is operated Torch switch or cable faulty Check the torch switch continuity and repair or replace as required ON OFF switch turned off Check position of ON OFF switc...

Page 68: ...bead too small or insufficient penetration Welding travel speed too fast Reduce your welding travel speed Weld bead too wide or excessive bead build up Welding travel speed too slow Increase your wel...

Page 69: ...ed joint reconnect and tighten the replaced gas inlet pipe or wrap up the damaged area The gas inlet pipe has been damaged by heat or aging Replace the gas inlet pipe Operator receiving a shock from t...

Page 70: ...ings LEDs and machine operation Monthly examination Disconnect from the mains supply and wait for at least 5 minutes before removing the cover Check internal connections and tighten if required Clean...

Page 71: ...specification and the alarm persists contact your suppliers approved technician E32 Overvoltage protection The input mains voltage is too high Turn the machine off and back on again If the alarm cont...

Page 72: ...tally compatible recycling facility Jasic has a relevant recycling system which is compliant and registered in the UK with the environment agency Our registration reference is WEEMM3813AA In order to...

Page 73: ...73 UKCA Declaration of Conformity...

Page 74: ...74 EC DECLARATION OF CONFORMITY...

Page 75: ...an incorrect or faulty mains supply Overloading during use Any modifications that are made to the product without the prior written consent Software errors due incorrect operation Any repairs that are...

Page 76: ...76 POWER SOURCE SCHEMATIC LC 30 WATER COOLER SCHEMATIC Cooler Connecting Plug Power plug connections Pins 1 2 AC115 230V 1 50 60Hz Pins 3 4 Fault signal Pin 5 Ground wire...

Page 77: ...oolant Coolant drainage Coolant can be drained easily by un screwing and removing the front drain plug item No 7 in the above image Please ensure to add coolant cooling water when the input cable is d...

Page 78: ...t control FRC 02 Wireless foot pedal remote current control TS4 Wireless Transceiver TFT ET 200PACDC Optional TFT user control panel LC 30 Optional Cooler LC 30 TR 01 Optional Trolley 2 Wheel with Too...

Page 79: ..._________ _____________________________________ _____________________________________ _____________________________________ _____________________________________ _____________________________________...

Page 80: ...80...

Reviews: