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Valid for serial no. 011--xxx--xxxx0468 290 127 041101

Aristotig 160Aristotig 200LTN 160, LTN 200

Instruction manual

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-- 2 --

Rights reserved to alter specifications without notice. .

3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ENGLISH 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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ENGLISH

-- 15 --TOCe

1 DIRECTIVE 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 SAFETY 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 INTRODUCTION 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 TECHNICAL DATA 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 INSTALLATION 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1 Lifting instructions 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 OPERATION 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.1 Control panel 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.2 OTHER FUNCTIONS 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.3 LIFTARC 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.4 Error Codes 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 MAINTENANCE 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 ORDERING SPARE PARTS 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DIAGRAM 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ORDERING NUMBER 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SPARE PARTS LIST 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ACCESSORIES 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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1 DIRECTIVE

DECLARATION OF CONFORMITYEsab Welding Equipment AB, S--695 81 Lax, Sweden, gives its unreserved guaran-tee that welding power source LTN 160/200 from serial number 628 complies with

standard EN 60974--1, in accordance with the requirements of directive (73/23/EEC)and addendum (93/68/EEC) and with standard EN 50199 in accordance with the re-quirements of directive (89/336/EEC) and addendum (93/68/EEC).--------------------------------------------------------------------------------------------------------------------------------------

Lax 1995--09--14

2 SAFETY

WARNING

READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE INSTALLING OR OPERATING.

ARC WELDING AND CUTTING CAN BE INJURIOUS TO YOURSELF AND OTHERS. TAKE PRECAU-TIONS WHEN WELDING. ASK FOR YOUR EMPLOYERS SAFETY PRACTICES WHICH SHOULD BEBASED ON MANUFACTURERS HAZARD DATA.

ELECTRIC SHOCK -- Can killS Install and earth the welding unit in accordance with applicable standards.S Do not touch live electrical parts or electrodes with bare skin, wet gloves or wet clothing.S Insulate yourself from earth and the workpiece.

S Ensure your working stance is safe.FUMES AND GASES -- Can be dangerous to healthS Keep your head out of the fumes.S Use ventilation, extraction at the arc, or both, to take fumes and gases away from your breathing zone

and the general area.

ARC RAYS -- Can injure eyes and burn skin.S Protect your eyes and body. Use the correct welding screen and filter lens and wear protective

clothing.S Protect bystanders with suitable screens or curtains.

FIRE HAZARDS Sparks (spatter) can cause fire. Make sure therefore that there are no inflammable materials nearby.

NOISE -- Excessive noise can damage hearingS Protect your ears. Use earmuffs or other hearing protection.S

Warn bystanders of the risk.MALFUNCTION -- Call for expert assistance in the event of malfunction.

PROTECT YOURSELF AND OTHERS!

ESAB can provide you with all necessary welding protection and accessories.

WARNING!Read and understand the instruction manual before installing

or operating.

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Do not use the power source for thawing frozen pipes.

WARNING!

This product is solely intended for arc welding.

3 INTRODUCTION

Aristotig 160andAristotig 200are two rectifiers designed using invertertechnology and are intended for TIG -- welding and welding using coated electrodes.The machines are also calledLTN 160andLTN 200. Inverter technology contributestowards low power consumption, a low weight and compact dimensions.

The advanced electronics with microprocessor control provides, amongst others,quick regulation and top class welding characteristics.

Arisotig is equipped withARC PLUS, a new type of control that with MMA weldingprovides a more intensive, more concentrated and smoother arc. It reacts quickerafter a short circuiting drop transfer, which reduces the risk of the electrode sticking.In addition, the machine is equipped with Arc Force, which means that the powersources dynamics can be adjusted, softer or harder depending on the type ofelectrode and the welders preference.ARC PLUS-- because of the regulators good characteristics it is only necessary tochange the Arc Force settings in exceptional circumstances.When drop welding using stainless steel electrodes a special feature on the machine

can be activated to facilitate welding.

Aristotig 160/200 is available in two designs, one with a central connector and onewith an OKC connector for a TIG torch.

Aristotig 160/200 is supplied complete with a 5 metre mains cable, 5 metre returncable, 1 cable coupling, gas hose and hose clips. Machines with a central connectorare also fitted with a safety bar to protect the connectors from impact.

As an accessory there is a loop handle to fit on the machines which acts as a cablereel as well protecting the control panel. There are also two carriages available fortransportation with a gas cylinder.

ESABs accessories for the product can be found on page30.

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4 TECHNICAL DATA

LTN 160 LTN 200Permitted load at

35 % duty cycle, TIG 160 A/16 V 200 A/18 V

35 % duty cycle, MMA 140 A/26 V 200 A/28 V60 % duty cycle 110 A/24 V 150 A/26 V

100 % duty cycle 80 A/23 V 115 A/25 V

Setting range,TIG 3--160 A 3--200 ASetting range,MMA 4--140 A 4--200 ASlope up 0--10 s 0--10 sSlope down 0--10 s 0--10 sGas pre--flow 0--25 s 0--25 sGas post--flow 0--25 s 0--25 sPulse time 0.02--5.0 s

(0.001--5.0 s)0.02--5.0 s(0.001--5.0 s)

Pause time 0.02--5.0 s(0.001--5.0 s)

0.02--5.0 s(0.001--5.0 s)

Open--circuit voltage 70 V 70 VOpen--circuit power 30 W 50 WUseful Power, P

at max current MMA 4.8 kW 7.2 kW

Apparent Power, Sat max current MMA 6.9 kVa 11.7 kVa

Power factor, at max current MMA 0.69 0.63Efficiency, at max current MMA 0.75 0.78Fuse, slow rupture 16 A 10 A

Mains cable,cross section 3x2.5 mm2 4x1.5 mm2Dimensions lxwxh 515x285x415 515x285x415Weight 23 kg 23 kg

Application classClass of enclosures IP 23 IP 23

The welding power sources comply with the requirements set out in IEC 974--1Cable areas acc. to Swedish regulations.

Duty cycleThe duty cycle refers to the time as a percentage of a ten--minute period that you can weld at a cer-

tain load without overloading.

Application class

The symbol indicates that the power source is designed for use in areas with increasedelectrical hazard.

Enclosure classTheIP code indicates the enclosure class, i. e. the degree of protection against penetration by solidobjects or water. Equipment markedIP23is designed for indoor and outdoor use.

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5 INSTALLATION

The installation must be executed by a professional.

WARNING!This product is intended for industrial use. In a domestic environment this product may cause radiointerference. It is the users responsibility to take adequate precautions.

LTN 160 LTN 200

Mains voltage 230 V 10 %, 1--phase 400 V 10 % , 3--phase

Mains frequency 50--60 Hz 50--60 Hz

Fuse, slow rupture 16 A*) 10 A

Mains cable, cross section 3x2.5 mm2 4x1.5 mm2

Welding cable, cross section 25 mm

2

25 mm

2

*) When welding with max 100 A a 10 A slow rupture fuse is sufficient.

Aristotig 160/200are equipped with mains voltage compensation, which means thata 10 % variation in the mains voltage only results in a 0,2 % variation in thewelding current.

To reduce the voltage drop when using a long cable it can be advisable to select aheavier cable cross section.

1. Place the equipment in a suitable place and make sure the rectifier is not covered or set-up sothat cooling is prevented.

2. Make sure the machine is connected to the correct mains voltage.Earth according to applicable directives.

3. Connect the shielding gas.

4. Connect the TIG torch and the return cable or the MMA welding cables.

The machine is now ready for welding.

5.1 Lifting instructions

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6 OPERATION

General safety regulations for the handling of the equipment can be found onpage16. Read through before you start using the equipment!

bt07d001

10 11 12 7

1.Mains power switch 9. Gas nipple (connection of gas cylinder)2.Yellow indicating lamp 10. Connection for TIG torch

3. White indicating lamp 12. Connection for return cable when TIG welding

4. Display

5. Setting knob The welding cable and return cable should be con-

6. Push--buttons nected to11and12

7. Remote control connection

8. Dust filter

When the main power switch is switched on the white indicating lamp, on the front,

comes on.To take your mind off the risk of overloading the machine it has been equipped withan integrated thermostat that trips if the temperature becomes too high.When this occurs the welding current is cut out and the yellow indicating lamp comeson. In addition, the error code E13 is displayed. When the temperature hasdropped the thermostat automatically resets.

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6.1 Control panel

On the front of the machine there is a control panel for the selection of functions andsetting of parameters. This consists of a display, setting knob, LEDs andpush--buttons.

By using the push--buttons you can move between the different functions. Theselected function is indicated by respective LEDs coming on.One line at a time is set. The current line is indicated by a red LED. Movementbetween lines takes place using the red arrow keys.

Movement within each line takes place using the green arrow keys.

All settings are made using the setting knob. The LEDs to the right of the displayindicate the actual unit (ampere/volt/seconds). On the lines where only a function isselected, ------ is shown on the display.

Description of the functions:

S Line 1S Line 2S Line 3S Line 4

S Line 5

S Line 6S Line 7

Line 1 TIG welding or MMA weldingIf MMA welding is chosen, the current is set here and lines 2--5 areignored.

Line 2 TIG/HF ignition or TIG/Liftarc ignitionFor a description of Liftarc ignition, see page 112.

Line 3 Continuous current or pulsed current O O -- O

Line 4 2 step or 4 step trigger action

2 step trigger action means that the arc is ignited when the torchtrigger is pressed in and is extinguished when the trigger is released.4 step trigger action means that when the torch trigger is pressed in1 the machine starts with the pilot current and then slopes up to theset current when the trigger is released 2. When the trigger ispressed in again 3 the machine slopes down to the pilot current. Thearc is extinguished when the trigger is released 4.

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Line 5 Parameter setting

1. Gas pre flow 0--25 s2. Slope up 0--10 s3. Pulse current or continuous current 3--160 A alt. 3--200 A

4. Pulse time 0,02--5,0 s (0.001--5.0 s)5. Pause current 3--160 A alt. 3--200 A6. Pause time 0.02--5.0 s (0.001--5.0 s)7. Slope down 0--10 s8. Gas post flow 0--25 s

Line 6 Measurement instrumentShows the welding current or arc voltage during the present weldingrun.The measurement instrument has a hold function that locks themeasurement value when the welding run is stopped.

Line 7 Welding data memory O O 1 O 2 O1--2 O AFour different sets of welding data settings can be stored in the

machines memory, two for TIG mode and two for MMA mode.

The following can be stored:TIG: selected option from line 3 (continuous or pulsed current) Allsettings on line 5.

MMA: Welding currentThe welding data memory is changed using the green arrowkeys.Changes can also be made by quickly pressing the torch trigger,regardless of whether you are welding or not.

To activate the possibility of jumping between programs both thegreen arrow keys should be pressed simultaneously.

When the jump function is activated an indicating lamp comes on.O 1--2 If the 4 step trigger action is selected, quickly pressing thetrigger will switch the welding data. The same thing applies in 2 steptrigger action if you are not welding. During welding, using 2 steptrigger action, you release the trigger momentarily to change thewelding data.

Aristotig has battery backup so that the settings remain in memoryeven when the machine is switched of or disconnected from thepower supply.

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6.2 OTHER FUNCTIONS

Drop welding (MMA)Drop welding can be used when welding with stainless steel electrodes.The technique involves the arc switching between igniting and extinguishing to allow

better control over the heat transfer. The electrode only needs to be lifted a little forthe arc to be extinguished.The machine should be in the current setting mode when the function is activated.

Press both of the green arrow keys simultaneously for 2 seconds and thesymbol --_-- indicates that the function is activated.This mode remains active even if the machine is switched off. The machine is resetfor normal welding again using the same method and ------ is then indicated on thedisplay.

Arc Force (MMA)

The Arc Force setting changes the machines dynamic. A softer or harder arc can beobtained. The machine should be in the current setting mode when activating the

function by pressing the two red arrow keys simultaneously for 2 seconds. Thedisplay shows a value between 0 and 100. The higher the value the harder the arc.Press one of the buttons and the power source returns to the normal operatingmode. The set Arc Force value remains. Different Arc Force settings can be stored inthe machines two sets of welding data memory.

Pulse time/Pause time (TIG)Normally the setting range for these parameters is 0.02--5.0 s. Through pressing the

two green arrows simultaneously for 2 seconds, times down to 0.001 s can be set.This extended setting range remains until the machine is reset using the samemethod. When activating the function the machine should be in the mode for settingthe pulse time/pause time. Note that times below 0.250 s are displayed without thedecimal point.

Remote controlUsing the remote control socket on the machine the current can be remotelyregulated in TIG and MMA modes.If pulsed current is selected in TIG mode, it is the pulsed current that is remotelyregulated. The set value from the remote control is shown on the display by stepping

to the position where the current should be set when not using the remote control.Switching to the remote mode takes place automatically when the unit is connected.This is confirmed by the LED coming on. O A

(NOTE! the pins L and M in the remote controls connecting plug must be strappedfor automatic connection to take place).

NOTE!When using FS002 the slope--up and slope--down times should be set to 0 sec.

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6.3 LIFTARC

Place the electrode against Press in the torch trigger..the workpiece.

Tilt the torch a little, lift and To stop--reease thean arc is produced. torch trigger.

6.4 Error Codes

Aristotig 160/200 is equipped with integrated error monitoring. If an error shouldoccur then an error code is displayed. The error codes are as follows:

E01 Memory error, internal RAME02 Memory error, external RAME03 Memory error, EPROME04 Memory error, random test of battery backed up RAME05 Memory error, variable value outside limit in battery backed up RAME06 Low battery voltageE10 Incorrect supply voltage 20 VE11 Incorrect supply voltage --15 VE13 High temperature, thermal switch protectionE14 Current--servo error

The error indications are shown if the machine is not able to maintain the setcurrent, for example, while MMA welding with an extremely long arc. Theindication should disappear after welding for a few seconds under normalconditions.

If any of these error codes are displayed permanently or recur frequently themachine should be taken to an authorized ESAB service workshop to be rectified.

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7 MAINTENANCE

Regular maintenance is important for safe, reliable operation.

Note!All guarantee undertakings from the supplier cease to apply if the customer himselfattempts any work in the product during the guarantee period in order to rectify anyfaults.

Only those persons who have appropriate electrical knowledge (authorizedpersonnel) may remove the safety plates to connect or carry out service,maintenance or repair work on welding equipment.

Generally, Aristotig 160/200 do not require any maintenance. Normally, it is sufficientto blow out the machine using clean, compressed air annually, and the dust filtershould be cleaned regularly.If the machine is set up in dusty or dirty environments the machine and dust filtershould be cleaned more often.

Dismantling the filter.

bt07d109

8 ORDERING SPARE PARTS

Repair and electrical work should be performed by an authorized ESAB serviceman.Use only ESAB original spare and wear parts.

LTN 160 / LTN 200 is designed and tested in accordance with the international and Eu-ropean standards IEC/EN 60974--1 and EN 50199. It is the obligation of the service unitwhich has carried out the service or repair work to make sure that the product stillconforms to the said standard.

Spare parts may be ordered through your nearest ESAB dealer, see the last page ofthis publication.

GB

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Diagram

LTN 160

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LTN 200

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Ordering number

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Ordering no. Denomination Type Notes0468 300 800 Welding power source Aristotig 160 with central connector for TIG welding

0468 300 881 Welding power source Aristotig 160 with OKC connector for TIG welding

0468 300 802 Welding power source Aristotig 200 with central connector for TIG welding

0468 300 883 Welding power source Aristotig 200 with OKC connector for TIG welding

0468 300 884 Welding power source Aristotig 160 with OKC connector for TIG welding,Only for Denmark

0468 290 990 Spare parts list Aristotig 160,Aristotig 200

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Spare parts list

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Item Qty Ordering no. Denomination

1 2 0441 819 001 Screw

2 1 0468 275 001 Grill

3 1 0468 519 001 Filter

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Accessories

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Trolley. . . . . . . . . . . . . . . . . . . . . . . . . . . .for 5 l gas cylinder

0468 530 880

Trolley. . . . . . . . . . . . . . . . . . . . . . . . . . . .for 10--50 l gas cylinder

0456 804 880

bt07t003

Protective handle for connections . . 0458 311 001

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Top handle . . . . . . . . . . . . . . . . . . . . . . . 0468 305 880

For LTN 200 & LTN 255Cooling unit OCF 2L . . . . . . . . . . . . . .

For LTN 160Cooling unit OCF 2A . . . . . . . . . . . . . .

0457 216 880

0457 216 883

Remote control MMA 1(10 m cable) .

MMA and TIG: current

0349 501 024

Remote control unit AT1 . . . . . . . . . . .MMA and TIG: current

0459 491 896

Remote control unit AT1 CF . . . . . . .

MMA and TIG: rough and fine settingof current.

0459 491 897

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Remote cable 12 pole -- 8 pole5 m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25 m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0459 552 8800459 552 8810459 552 882

0459 552 883

Foot control FS002,i n c l u d i n g c a b l e . . . . . . . . . . . . . . . . . . .MMA and TIG: current

0349 090 886

LTN 255: Return cable, 35 mm2 (state the length when ordering) 0262 613 602. . . . . . . . . . . . . . .LTN 160&LTN 200: Return cable, 25 mm2 (state the length when ordering) 0262 613 601. . . . .Return current clip 0367 558 880. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Welding current cable and return current cable, complete for MMA welding:

LTN 255 LTN 160 & 200Welding current cable, 5 metre 0468 539 882 0468 539 880

Return current cable, 5 metre 0468 539 883 0468 539 881

Information on TIG torches and remote control units can be found in separate brochures.

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