Valid for serial no. 011--xxx--xxxx0457 328 101 041101

Aristotig 255LTN 255

Instruction manual Èíñòðóêöèÿ ïî ýêñïëóàòàöèè

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Rights reserved to alter specifications without notice.Îñòàâëÿåì çà ñîáîé ïðàâî èçìåíÿòü ñïåöèôèêàöèþ áåç ïðåäóïðåæäåíèÿ.

Ðóññêèé 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ENGLISH 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ðóññêèé

TOCr -- 3 --

1 ÒÅÕÍÈÊÀ ÁÅÇÎÏÀÑÍÎÑÒÈ 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 ÂÂÅÄÅÍÈÅ 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 ÒÅÕÍÈ×ÅÑÊÈÅ ÄÀÍÍÛÅ 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 ÝÊÑÏËÓÀÒÀÖÈß 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1 Èíñòðóêöèè ïî ïîäúåìó 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 ÐÀÁÎÒÀ ÓÑÒÀÍÎÂÊÈ 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1 Ïàíåëü óïðàâëåíèÿ 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.2 Äðóãèå ôóíêöèè 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.3 Ïåðå÷åíü êîäîâ îøèáîê 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 ÒÅÕÍÈ×ÅÑÊÎÅ ÎÁÑËÓÆÈÂÀÍÈÅ 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 ÇÀÊÀÇ ÇÀÏÀÑÍÛÕ ×ÀÑÒÅÉ 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ÑÕÅÌÀ 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ÍÎÌÅÐ ÇÀÊÀÇÀ 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ÑÏÈÑÎÊ ÇÀÏÀÑÍÛÕ ×ÀÑÒÅÉ 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ÄÎÏÎËÍÈÒÅËÜÍÛÅ ÏÐÈÍÀÄËÅÆÍÎÑÒÈ 28. . . . . . . . . . . . . . . . . . . . . . . . . . .

bt19d2r -- 4 --

1 ÒÅÕÍÈÊÀ ÁÅÇÎÏÀÑÍÎÑÒÈ

Ïåðåä íà÷àëîì ìîíòàæà è ýêñïëóàòàöèè âíèìàòåëüíî èçó÷èòå ñîîòâåòñòâóþùèå èíñòðóêöèè.

ÇÀÙÈÒÈÒÅ ÑÅÁß È ÄÐÓÃÈÕ!

ÎÑÒÎÐÎÆÍÎ!ÄÓÃÎÂÀß ÑÂÀÐÊÀ È ÐÅÇÊÀ ÎÏÀÑÍÛ ÊÀÊ ÄËß ÈÑÏÎËÍÈÒÅËß ÐÀÁÎÒ, ÒÀÊ È ÄËßÏÎÑÒÎÐÎÍÍÈÕ ËÈÖ. ÒÐÅÁÓÉÒÅ ÑÎÁËÞÄÅÍÈÅ ÂÑÅÕ ÏÐÀÂÈË ÁÅÇÎÏÀÑÍÎÑÒÈ,ÄÅÉÑÒÂÓÞÙÈÕ ÍÀ ÎÁÚÅÊÒÅ, ÊÎÒÎÐÛÅ ÄÎËÆÍÛ Ó×ÈÒÛÂÀÒÜ ÑÂÅÄÅÍÈß ÎÁ ÎÏÀÑÍÎÑÒßÕ,ÏÐÅÄÑÒÀÂËÅÍÍÛÅ ÈÇÃÎÒÎÂÈÒÅËÅÌ ÑÂÀÐÎ×ÍÎÃÎ ÎÁÎÐÓÄÎÂÀÍÈß.

ÎÏÀÑÍÎÑÒÜ ÑÌÅÐÒÅËÜÍÎÃÎ ÏÎÐÀÆÅÍÈß ÝËÅÊÒÐÈ×ÅÑÊÈÌ ÒÎÊÎÌ.S Ñâàðî÷íûé àãðåãàò óñòàíàâëèâàåòñÿ è çàçåìëÿåòñÿ â ñîîòâåòñòâèè ñ äåéñòâóþùèìè íîðìàìè èïðàâèëàìè.

S Íå äîïóñêàéòå êîíòàêòà íàõîäÿùèõñÿ ïîä íàïðÿæåíèåì äåòàëåé è ýëåêòðîäîâ ñ íåçàùèùåííûìè÷àñòÿìè òåëà, ìîêðûìè ðóêàâèöàìè è ìîêðîé îäåæäîé.

S Îáåñïå÷üòå ýëåêòðè÷åñêóþ èçîëÿöèþ îò çåìëè è ñâàðèâàåìûõ äåòàëåé.S Îáåñïå÷üòå ñîáëþäåíèå áåçîïàñíûõ ðàáî÷èõ ðàññòîÿíèé.

ÄÛÌÛ È ÃÀÇÛ ìîãóò áûòü îïàñíû äëÿ ÷åëîâåêàS Èñêëþ÷èòå âîçìîæíîñòü âîçäåéñòâèÿ äûìîâ.S Äëÿ èñêëþ÷åíèÿ âäûõàíèÿ äûìîâ âî âðåìÿ ñâàðêè îðãàíèçóåòñÿ îáùàÿ âåíòèëÿöèÿ ïîìåùåíèÿ, àòàêæå âûòÿæíàÿ âåíòèëÿöèÿ èç çîíû ñâàðêè.

ÈÇËÓ×ÅÍÈÅ ÄÓÃÈ âûçûâàåò ïîðàæåíèå ãëàç è îæîãè êîæè.S Çàùèòèòå ãëàçà è êîæó. Äëÿ ýòîãî èñïîëüçóéòå çàùèòíûå ùèòêè, öâåòíûå ëèíçû è çàùèòíóþñïåöîäåæäó.

S Äëÿ çàùèòû ïîñòîðîííèõ ëèö ïðèìåíÿþòñÿ çàùèòíûå ýêðàíû èëè çàíàâåñè.

ÏÎÆÀÐÎÎÏÀÑÍÎÑÒÜS Èñêðû (áðûçãè ìåòàëëà) ìîãóò âûçâàòü ïîæàð. Óáåäèòåñü â îòñóòñòâèè ãîðþ÷èõ ìàòåðèàëîâïîáëèçîñòè îò ìåñòà ñâàðêè.

∅ÓÌ - ×ðåçìåðíûé øóì ìîæåò ïðèâåñòè ê ïîâðåæäåíèþ îðãàíîâ ñëóõàS Ïðèìèòå ìåðû äëÿ çàùèòû ñëóõà. Èñïîëüçóéòå çàòû÷êè äëÿ óøåé èëè äðóãèå ñðåäñòâà çàùèòûñëóõà.

S Ïðåäóïðåäèòå ïîñòîðîííèõ ëèö îá îïàñíîñòè.

ÍÅÈÑÏÐÀÂÍÎÑÒÈ -- Ïðè íåèñïðàâíîñòè îáðàòèòåñü ê ñïåöèàëèñòàì ïî ñâàðî÷íîìóîáîðóäîâàíèþ

Êîìïàíèÿ ESAB ãîòîâà ïðåäîñòàâèòü âàì âñå çàùèòíîå ñíàðÿæåíèå èïðèíàäëåæíîñòè, íåîáõîäèìûå äëÿ âûïîëíåíèÿ ñâàðî÷íûõ ðàáîò.

Çàïðåùàåòñÿ èñïîëüçîâàòü èñòî÷íèê ïèòàíèÿ äëÿ îòòàèâàíèÿ òðóá.

ÂÍÈÌÀÍÈÅ!

ÂÍÈÌÀÍÈÅ!Ïåðåä íà÷àëîì ìîíòàæà è ýêñïëóàòàöèè âíèìàòåëüíîèçó÷èòå ñîîòâåòñòâóþùèå èíñòðóêöèè.

Âíèìàíèå!Ýòî óñòðîéñòâî ïðåäíàçíà÷åíî èñêëþ÷èòåëüíî äëÿ ýëåêòðîäóãîâîé ñâàðêè!

RU

bt19d2r -- 5 --

2 ÂÂÅÄÅÍÈÅLTN 255 - ñâàðî÷íûé âûïðÿìèòåëü, èíâåðòîðíîãî òèïà, ïðåäíàçíà÷åííûé äëÿñâàðêè íåïëàâÿùèìñÿ ýëåêòðîäîì â ñðåäå çàùèòíûõ ãàçîâ (TIG), à òàêæå äëÿðó÷íîé äóãîâîé ñâàðêè(MMA). Ïðèìåíåíèå èíâåðòîðíîé òåõíîëîãèèïîçâîëèëî ñíèçèòü ïîòðåáëÿåìóþ ýíåðãèþ, óìåíüøèòü âåñ è ãàáàðèòû.Ïðèìåíåíèå ñîâðåìåííîé ýëåêòðîíèêè, â òîì ÷èñëå è ìèêðîïðîöåññîðîâ,ïîçâîëèëî, íàðÿäó ñ äðóãèìè ïðåèìóùåñòâàìè, îáåñïå÷èòü áûñòðóþíàñòðîéêó ïðîöåññà è âûñîêîêà÷åñòâåííóþ ñâàðêó.

LTN 255 - èìååò âñòðîåííóþ ôóíêöèþ óïðàâëåíèÿ ïðîöåññîì ðó÷íîé äóãîâîéñâàðêè ARC PLUS, êîòîðàÿ ïîçâîëÿåò ïîëó÷èòü áîëåå êîíöåíòðèðîâàííóþ èìÿãêóþ äóãó. Íîâîå óïðàâëåíèå áûñòðî ðåàãèðóåò íà êîðîòêèå çàìûêàíèÿ âîâðåìÿ êàïåëüíîãî ïåðåíîñà è ïîçâîëÿåò ñíèçèòü ðèñê ïðèëèïàíèÿ ýëåêòðîäà.Áîëåå òîãî, óñòàíîâêè îñíàù¸íû ôóíêöèåé Arc Force, êîòîðàÿ ïîçâîëÿåòèçìåíÿòü äèíàìè÷åñêèå õàðàêòåðèñòèêè äóãè, ò.å. äåëàòü å¸ áîëåå ìÿãêîé èëèáîëåå æåñòêîé ïî æåëàíèþ ñâàðùèêà.

Áëàãîäàðÿ îòëè÷íûì ñâîéñòâàì óñòðîéñòâà ARC PLUS, ìåíÿòü åãîõàðàêòåðèñòèêè ïðèõîäèòñÿ ëèøü â èñêëþ÷èòåëüíûõ ñëó÷àÿõ.LTN 255 âûïóñêàþòñÿ â äâóõ èñïîëíåíèÿõ: c öåíòðàëüíûì òèïîì ðàçúåìà èðàçú¸ìîì òèïà ÎÊÑ äëÿ ïîäñîåäèíåíèÿ ãîðåëêè TIG. êîìïëåêò ïîñòàâêè LTN 255 âõîäèò: 5ì ñåòåâîãî êàáåëÿ, 5ì âîçâðàòíîãîêàáåëÿ, ãàçîâûé øëàíã ñ çàæèìàìè. Óñòàíîâêè ñ öåíòðàëüíûì ðàçú¸ìîìèìåþò ñïåöèàëüíîå óêðûòèå ðàçú¸ìà, ïðåäîõðàíÿþùåå åãî îò óäàðîâ.Êàê äîïîëíèòåëüíûå ïðèíàäëåæíîñòè ìîãóò ïîñòàâëÿòüñÿ ñïåöèàëüíàÿôèãóðíàÿ ðóêîÿòêà, ñëóæàùàÿ îäíîâðåìåííî êàðêàñîì äëÿ íàìîòêè êàáåëÿ èäîïîëíèòåëüíîé çàùèòîé ïàíåëè ïðèáîðîâ.Äëÿ òðàíñïîðòèðîâêè ïðåäóñìîòðåíî 2 âèäà òåëåæåê ñ ïëîùàäêîé äëÿãàçîâîãî áàëëîíà è ñèñòåìû âîäÿíîãî îõëàæäåíèÿ. .Àêñåññóàð² îò äëÿ èçäåëÿ ìîæíî íàéòè íà ñòðíèöå 28.

3 ÒÅÕÍÈ×ÅÑÊÈÅ ÄÀÍÍÛÅ

Ìàêñèìàëüíàÿ äîïóñòèìàÿ íàãðóçêàïðè ÏÂ 35 % , TIG 250 A/20 Vïðè ÏÂ 35 % , MMA 250 A/30 Vïðè ÏÂ 60 % 180 A/27 Vïðè ÏÂ 100 % 140 A/26 V

Äèàïàçîí ðåãóëèðîâàíèÿ òîêà ñâàðêè, TIG 3-250 AMMA 4-250 A

Âðåìÿ íàðàñòàíèÿ òîêà 0-10 ñåêÂðåìÿ ñïàäà òîêà 0-10 ñåê

Ïðåäâàðèòåëüíàÿ ïðîäóâêà ãàçà 0-25 ñåêÏðîäóâêà ïîñëå ñâàðêè 0-25 ñåê

Âðåìÿ èìïóëüñà 0,02-5,0 ñåê (0,001-5,0 ñåê)Âðåìÿ ïàóçû 0,02-5,0 ñåê (0,001-5,0 ñåê)

Íàïðÿæåíèå õîëîñòîãî õîäà 70-80 V

RU

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Ìîùíîñòü õîëîñòîãî õîäà 40 WÏîëåçíàÿ ìîùíîñòü, P

ïðè ìàêñ. òîêå MMA 8,78 kWÏîòðåáëÿåìàÿ ìîùíîñòü, S

ïðè ìàêñ. òîêå MMA 13,3 kVa

Êîýôôèöèåíò ìîùíîñòè ïðè ìàêñ. òîêå MMA 0,65Ê.Ï.Ä, ïðè ìàêñ. òîêå MMA 0,85Ïðåäîõðàíèòåëü 16 AÑå÷åíèå ñåòåâîãî êàáåëÿ 4x1,5 ìì2

Ãàáàðèòû, lxwxh 515x285x415 ììÂåñ 25 kg

Êëàññ ïðèìåíåíèÿÊëàññ çàùèòû IP 23

Äàííûé âûïðÿìèòåëü óäîâëåòâîðÿåò òðåáîâàíèÿì ñòàíäàðòà IEC 974-1Ñå÷åíèÿ êàáåëåé - ñîãëàñíî øâåäñêèõ ñòàíäàðòîâ.

Ðàáî÷èé öèêëÐàáî÷èé öèêë ïðåäñòàâëÿåò ñîáîé äîëþ (â %%) äåñÿòèìèíóòíîãî èíòåðâàëà, â òå÷åíèåêîòîðîé ìîæíî ïðîèçâîäèòü ñâàðêó ïðè îïðåäåëåííîé íàãðóçêå áåç ïåðåãðóçêè.

Êëàññ çîíû óñòàíîâêè

Ýòîò ñèìâîë îçíà÷àåò, ÷òî èñòî÷íèê ïèòàíèÿ ïðåäíàçíà÷åí äëÿ èñïîëüçîâàíèÿ â çîíàõñ ïîâûøåííîé îïàñíîñòüþ ïîðàæåíèÿ ýëåêòðîòîêîì.

Êëàññ êîæóõàÍîðìû IP óêàçûâàþò êëàññ êîæóõà, ò.å., ñòåïåíü çàùèòû îò ïðîíèêíîâåíèÿ òâåðäûõîáúåêòîâ è âîäû. Îáîðóäîâàíèå ñ ìàðêèðîâêîé IP 23 ïðåäíàçíà÷åíî äëÿ íàðóæíîé èâíóòðåííåé óñòàíîâêè.

4 ÝÊÑÏËÓÀÒÀÖÈß

Ââîä â ýêñïëóàòàöèþ äîëæåí ïðîèçâîäèòüñÿ êâàëèôèöèðîâàííûìñïåöèàëèñòîì.

ÂÍÈÌÀÍÈÅ!Íàñòîÿùåå èçäåëèå ïðåäíàçíà÷åíî äëÿ ïðîìûøëåííîãî èñïîëüçîâàíèÿ. Ïðèèñïîëüçîâàíèè â áûòîâûõ óñëîâèÿõ îíî ìîæåò ñîçäàâàòü ðàäèî÷àñòîòíûå ïîìåõè.Ïîëüçîâàòåëü îòâå÷àåò çà ïðèíÿòèå ñîîòâåòñòâóþùèõ ìåð ïðåäîñòîðîæíîñòè.

Íàïðÿæåíèå ñåòè 400 V ¦ 10 % , 3-ôàç.

×àñòîòà ñåòè 50-60 Hz

Ïðåäîõðàíèòåëü 16 A

Ñå÷åíèå ñåòåâîãî êàáåëÿ 4x1.5 ìì2

Ñå÷åíèå ñâàðî÷íîãî êàáåëÿ 35 ìì2

LTN 255 - ñíàáæåí óñòðîéñòâîì êîìïåíñàöèè êîëåáàíèé ïèòàþùåé ñåòè, ò.å.ïðè êîëåáàíèÿõ íàïðÿæåíèÿ ñåòè ¦10 % êîëåáàíèå â ñâàðî÷íîé ñåòè íåïðåâûñÿò¦ 0,2 %

RU

bt19d2r -- 7 --

Ïðè ïðèìåíåíèè ñâàðî÷íûõ êàáåëåé áîëüøîé äëèíû ðåêîìåíäóåòñÿóâåëè÷èòü åãî ñå÷åíèå.

1. Óñòàíîâèòå âûïðÿìèòåëü â óäîáíîì äëÿ ðàáîòû ìåñòå è óáåäèòåñü, ÷òî íå ïåðåêðûòäîñòóï âîçäóõà â âåíòèëÿöèîííûå ñå÷åíèÿ.

2. Óáåäèòåñü â òîì, ÷òî âûïðÿìèòåëü ïîäñîåäèíåí ê ïèòàþùåé ñåòè ñîîòâåòñòâóþùåãîíàïðÿæåíèÿ. Çàçåìëåíèå ñîãëàñíî äåéñòâóþùèì íîðìàì.

3. Ïîäñîåäèíèòå çàùèòíûé ãàç.4. Ïîäêëþ÷èòå ãîðåëêó TIG, âîçâðàòíûé êàáåëü è ñâàðî÷íûé äëÿ ÌÌÀ.

Òåïåðü óñòàíîâêà ãîòîâà ê ðàáîòå.

4.1 Èíñòðóêöèè ïî ïîäúåìó

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5 ÐÀÁÎÒÀ ÓÑÒÀÍÎÂÊÈ

Îáùèå ïðàâèëà òåõíèêè áåçîïàñíîñòè ïðè ðàáîòå ñ îáîðóäîâàíèåìïðèâîäÿòñÿ íà ñòð. 4. Ïðî÷òèòå èõ äî èñïîëüçîâàíèÿ îáîðóäîâàíèÿ!

84 5 3 2

1

9

610 11 12 7

1. Âûêëþ÷àòåëü ñåòè 9. Ãàçîâûé øòóöåð

2. Æåëòàÿ êîíòðîëüíàÿ ëàìïà 10. Ðàçú¸ì ãîðåëêè TIG

3. Áåëàÿ êîíòðîëüíàÿ ëàìïà 12. Ðàçú¸ì âîçâðàòíîãî êàáåëÿ

4. Öèôðîâîé äèñïëåé

5. Ðó÷êà ðåãóëÿòîðà Ïðè ÌÌÀ ñâàðî÷íûé è âîçâðàòíûé êàáåëüî þ àþ ñ ðàç ¸ à 11 126. Ìÿãêèå êëàâèøè ïîäêëþ÷àþòñÿ ê ðàçú¸ìàì 11 è 12

7. Ðàçú¸ì ïóëüòà äèñòàíöèîííîãîóïðàâëåíèÿ

8. Âîçäóøíûé ôèëüòð

Ïðè âêëþ÷åíèè ñåòåâîãî âûêëþ÷àòåëÿ çàãîðàåòñÿ áåëàÿ êîíòðîëüíàÿ ëàìïà íàïåðåäíåé ïàíåëè.

Äëÿ çàùèòû îò ïåðåãðåâà âûïðÿìèòåëü èìååò âñòðîåííûé òåðìîñòàò,ñðàáàòûâàþùèé ïðè ïðåâûøåíèè òåìïåðàòóðû âûøå äîïóñòèìîé. Ïðè ýòîìîáåñòî÷èâàþòñÿ ñâàðî÷íûå êàáåëè è çàãîðàåòñÿ æ¸ëòàÿ êîíòðîëüíàÿ ëàìïà èâûñâå÷èâàåòñÿ êîä îøèáêè “E13” íà äèñïëåå. Ïðè ïîíèæåíèè òåìïåðàòóðûòåðìîñòàò àâòîìàòè÷åñêè âêëþ÷àåò âûïðÿìèòåëü.

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5.1 Ïàíåëü óïðàâëåíèÿ

Íà ïåðåäíåé ÷àñòè âûïðÿìèòåëÿ ðàçìåùàåòñÿ ïàíåëü óïðàâëåíèÿ,ïîçâîëÿþùàÿ âûáðàòü òðåáóåìûå ôóíêöèè è óñòàíîâèòü çíà÷åíèÿïàðàìåòðîâ. Äëÿ ýòîãî èìåþòñÿ: óñòàíîâî÷íàÿ ðó÷êà, ìÿãêèå êëàâèøè,äèñïëåé è èíäèêàòîðíûå ëàìïû.

Ñ ïîìîùü ìÿãêèõ êëàâèø û âûáèðàåòå íóæíóþ ôóíêöèþ. Ðÿäîì ñâûáðàííîé ôóíêöèåé çàãîðàåòñÿ ñîîòâåòñòâóþùèé èíäèêàòîð è â äàííûéìîìåíò òîëüêî ýòà ëèíèÿ íàõîäèòñÿ â ðåæèìå óñòàíîâêè. Ïåðåìåùåíèå ìåæäóëèíèÿìè îñóùåñòâëÿåòñÿ êðàñíûìè ìÿãêèìè êëàâèøàìè ñî ñòðåëêàìè .Ïåðåìåùåíèå âíóòðè ëèíèé - çåëåíûìè..

Âñå óñòàíîâêè ïðîèçâîäÿòñÿ ïîâîðîòîì ðó÷êè. Èíäèêàòîðû ñïðàâà îò äèñïëåÿïîäñâå÷èâàþò óñòàíîâêó ñîîòâåòñòâóþùåãî ïàðàìåòðà (À/Â/ñåê).Åñëè ôóíêöèÿíå èìååò ÷èñëåííîãî çíà÷åíèÿ íà äèñïëåå áóäåò îáîçíà÷åíèå ”---”.

Îïèñàíèå ôóíêöèé:

S Ëèíèÿ 1S Ëèíèÿ 2S Ëèíèÿ 3S Ëèíèÿ 4

S Ëèíèÿ 5

S Ëèíèÿ 6S Ëèíèÿ 7

Ëèíèÿ 1 Ñâàðêà íåïëàâÿùèìñÿ ýëåêòðîäîì (TIG) èëè øòó÷íûìýëåêòðîäîì (ÌÌÀ)Åñëè âûáðàíî MMA, òî òîê óñòàíàâëèâàåòñÿ íà ýòîé ëèíèè, àëèíèè 2-5 íå èñïîëüçóþòñÿ.

Ëèíèÿ 2 Ñïîñîá çàæèãàíèÿ äóãè ïðè ñâàðêå ÒIG - âûñîêî÷àñòîòíûé èëèîòðûâîì.

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Ðàñïîëîæèòå ýëåêòðîäíà èçäåëèè.

Íàæìèòå êíîïêó ãîðåëêè.

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Íàêëîíèòå íåìíîãî ýëåêòðîä,îòîðâèòå åãî îò èçäåëèÿ äëÿâîçáóæäåíèÿ äóãè

bt07t002Äëÿ ïðåêðàùåíèÿñâàðêè îòïóñòèòå êíîïêóãîðåëêè

Ëèíèÿ 3 Òîê ñ íàëîæåíèåì èìïóëüñîâ èëè áåç íèõ O O - O

Ëèíèÿ 4 2-õ èëè 4-õ òàêòíûé ðåæèì ðàáîòû ãîðåëêè2-õ òàêòíûé - ïðè íàæàòèè íà êíîïêó ãîðåëêè äóãà çàæèãàåòñÿ, àïðè îòïóñêàíèè êíîïêè ãàñíåò..2-õ òàêòíûé - ïðè íàæàòèè íà êíîïêó ãîðåëêè äóãà çàæèãàåòñÿ èïîñëå îòïóñêàíèÿ êíîïêè òîê ïëàâíî óâåëè÷èâàåòñÿ äîóñòàíîâëåííîãî çíà÷åíèÿ, ïðè ïîâòîðíîì íàæàòèè êíîïêè òîêïëàâíî ñíèæàåòñÿ äî áàçîâîãî è ïðè îòïóñêàíèè êíîïêè äóãàãàñíåò.

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Ëèíèÿ 5 Óñòàíîâêà ïàðàìåòðîâ

1. Ïðåäâàðèòåëüíàÿ ïðîäóâêà 0-25 ñåê2. Íàðàñòàíèå òîêà 0-10 ñåê3. Òîê èìïóëüñà èëè ïîñòîÿííûé òîê 3-250 A4. Âðåìÿ èìïóëüñà 0,02-5,0 ñåê (0.001-5.0 ñåê)5. Áàçîâûé òîê 3-250 A6. Âðåìÿ ïàóçû 0.02-5.0 ñåê (0.001-5.0 ñåê)7. Ñïàä òîêà 0-10ñåês8. Ïðîäóâêà ïîñëå ñâàðêè 0-25 ñåê

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Ëèíèÿ 6 Âîëüò/ÀìïåðìåòðÏîêàçûâàåò òåêóùèå çíà÷åíèÿ ñâàðî÷íîãî òîêà èëè íàïðÿæåíèÿäóãè â ïðîöåññå ñâàðêè.Ïðèáîð èìååò óäåðæèâàþùóþ ôóíêöèþ - ïîñëå îêîí÷àíèÿñâàðêè ïàðàìåòðû ïðîäîëæàþò âûñâå÷èâàòüñÿ.

Ëèíèÿ 7. Çàïîìèíàíèå ïàðàìåòðîâ O O 1 O 2 O1-2 O A×åòûðå ðàçëè÷íûõ íàáîðà ïàðàìåòðîâ ñâàðêè ìîãóò áûòüââåäåíû â ïàìÿòü àïïàðàòà - 2 äëÿ ñâàðêè ÒIG è 2 äëÿ ñâàðêèÌÌÀ.

Çàïîìèíàþòñÿ ñëåäóþùèå ïàðàìåòðû:ÒIG: Âûáðàííûé ðåæèì íà ëèíèè 3 (èìïóëüñíûé èëè îáû÷íûé) èâñå óñòàíîâêè íà ëèíèè 5.

MMA: Çíà÷åíèå ñâàðî÷íîãî òîêà

Ïåðåõîä ñ îäíîãî íàáîðà ïàðàìåòðîâ, ââåäåííûõ â ïàìÿòü, íàäðóãîé ïðîèçâîäèòñÿ ñ ïîìîùüþ çåëåíûõ êíîïîê.Mîæíî òàêæå ïåðåêëþ÷èòüñÿ ñ îäíîãî íàáîðà íà äðóãîé ñïîìîùüþ êíîïêè ãîðåëêèÄëÿ òîãî, ÷òîáû àêòèâèðîâàòü ôóíêöèþ ïåðåõîäà,íåîáõîäèìîîäíîâðåìåííî íàæàòü îáå çåëåíûå êíîïêè.

Ïðè àêòèâàöèè ýòîé ôóíêöèè çàãîðàåòñÿ ñâåòîäèîä.O 1-2 Åñëè âûáðàí 4-õ òàêòíûé ðåæèì ðàáîòû ãîðåëêè, ïðèáûñòðîì íàæàòèè íà êíîïêó ïðîèñõîäèò ïåðåõîä íà äðóãîéðåæèì ñâàðêè. Òî æå ñàìîå îòíîñèòñÿ ê 2-õ òàêòíîìó ðåæèìó,åñëè ñâàðêà íå âåäåòñÿ.  ïðîöåññå ñâàðêè â äâóõòàêòíîìðåæèìå íåîáõîäèìî êðàòêîâðåìåííî îòïóñòèòü êíîïêó..Àðèñòîòèã èìååò áàòàðåþ ïîääåðæêè ïàìÿòè, òàê ÷òî äàæå ïðèâûêëþ÷åííîì àïïàðàòå ïàðàìåòðû ñîõðàíÿþòñÿ â íåé.

5.2 Äðóãèå ôóíêöèè

Êàïåëüíàÿ ñâàðêà (MMA)Êàïåëüíàÿ ñâàðêà èñïîëüçóåòñÿ ïðè ñâàðêå øòó÷íûìè ýëåêòðîäàìè èçíåðæàâåþùåé ñòàëè. Òåõíèêà òàêîé ñâàðêè ïîäðàçóìåâàåò ïåðèîäè÷åñêîåâîçáóæäåíèå è ãàøåíèå äóãè, ÷òî ïîçâîëÿåò ëó÷øå óïðàâëÿòü ïðîöåññîìòåïëîïåðåíîñà. Äîñòàòî÷íî íåìíîãî ïðèïîäíÿòü ýëåêòðîä è ïðîèñõîäèòãàøåíèå äóãè.

Äëÿ ââîäà â ýòîò ðåæèì âêëþ÷èòå óñòàíîâêó òîêà è çàòåì íàæìèòå èóäåðæèâàéòå îáå çåëåíûå êëàâèøè â òå÷åíèè 2 ñåêóíä äî ïîÿâëåíèÿñèìâîëà ”-_-” íà äèñïëåå. Ïîñëå âûêëþ÷åíèÿ ýòà ôóíêöèÿ îñòàíåòñÿñîõðàíåííîé. Äëÿ âîçâðàòà óñòàíîâêè â îáû÷íûé ðåæèì íåîáõîäèìîïîâòîðèòü îïåðàöèè ñ êëàâèøàìè äî ïîÿâëåíèÿ ñèìâîëà ”---” íà äèñïëåå.

Ôóíêöèÿ Arc Force (MMA)Ýòà ôóíêöèÿ ìåíÿåò äèíàìèêó âûïðÿìèòåëÿ è äóãà ìîæåò äåëàòüñÿ ìÿã÷å èëèæåñò÷å.  ðåæèìå óñòàíîâêè òîêà íàæìèòå è óäåðæèâàéòå îáå êðàñíûåêëàâèøè â òå÷åíèè 2 ñåêóíä. Íà äèñïëåå ïîÿâÿòñÿ öèôðû îò 0 äî 100 âçàâèñèìîñòè îò óñòàíîâëåííîé æåñòêîñòè äóãè. Äëÿ âîçâðàòà óñòàíîâêè â

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îáû÷íûé ðåæèì íàæìèòå îäíó èç êëàâèø.2 âûáðàííûõ ðåæèìà Arc Force ìîãóò áûòü ñîõðàíåíû â ïàìÿòè óñòàíîâêè.

Âðåìÿ èìïóëüñà/Âðåìÿ ïàóçû (TIG)Îáû÷íî çíà÷åíèÿ ýòèõ ïàðàìåòðîâ íàõîäÿòñÿ â äèàïàçîíå 0,02-5,0 ñåê. Ñïîìîùüþ ïðè¸ìà íàæàòèÿ 2 êëàâèø ñ çåëåíûìè ñòðåëêàìè ìîæíî äîñòè÷üçíà÷åíèé 0,001 ñåê. Ýòîò ðåæèì ñîõðàíÿåòñÿ äî òåõ ïîð, ïîêà ïîâòîðíî íåâûïîëíèòü âûøåïðèâåäåííûå äåéñòâèÿ. Îáðàòèòå âíèìàíèÿ, ÷òî ïðèçíà÷åíèÿõ âðåìåíè ìåíüøå 0,250 ñåê íà äèñïëåå öèôðû áóäóò ïîêàçàíû áåçðàçäåëèòåëüíîé çàïÿòîé.

Äèñòàíöèîííîå óïðàâëåíèå (ÄÓ)Ñ åãî ïîìîùüþ ìîæíî íà óäàëåíèè îò óñòàíîâêè ðåãóëèðîâàòü ïàðàìåòðûñâàðêè TIG è MMA .Ïðè èìïóëüñíîé ñâàðêå ðåãóëèðóåòñÿ âåëè÷èíà òîêà èìïóëüñà. Íàñòðîéêà ñïîìîùüþ ïóëüòà ÄÓ âåäåòñÿ â àêòèâèðîâàííîì ðåæèìå íàñòðîéêè òîêàèìïóëüñà áåç ïóëüòà ÄÓ. Ïåðåõîä â ðåæèì ÄÓ ïðîèñõîäèò àâòîìàòè÷åñêèïîñëå ïîäêëþ÷åíèÿ ïóëüòà. Ïðè ýòîì çàãîðàåòñÿ èíäèêàòîð O A

(Âíèìàíèå! jòûðüêè L è M â ðàçú¸ìå ïóëüòà ÄÓ äîëæíû áûòü ñîåäèíåíû äëÿàâòîìàòè÷åñêîãî âêëþ÷åíèÿ ÄÓ)

Âíèìàíèå!Ïðè èñïîëüçîâàíèè FS002 ôóíêöèè íàðàñòàíèÿ è ñïàäà òîêà äîëæíû áûòüðàâíû íóëþ.

5.3 Ïåðå÷åíü êîäîâ îøèáîê

LTN 255 èìååò âñòðîåííîå óñòðîéñòâî, èíôîðìèðóþùåå î âèäåíåèñïðàâíîñòè â âèäå êîäîâîãî ñîîáùåíèÿ íà äèñïëåå. Ïåðå÷åíü êîäîâïðèâåäåí íèæå:

E01 Îøèáêà ïàìÿòè, âíóòðåííÿÿ RAME02 Îøèáêà ïàìÿòè, íàðóæíàÿ RAME03 Îøèáêà ïàìÿòè, EPROME04 Îøèáêà ïàìÿòè, òåñò áàòàðåè RAME05 Îøèáêà ïàìÿòè, îãðàíè÷åííûé ðåñóðñ áàòàðåè RAME06 Íèçêîå íàïðÿæåíèå áàòàðåèE10 Íåïðàâèëüíîå ïèòàíèå ïî ëèíèè 20 VE11 Íåïðàâèëüíîå ïèòàíèå ïî ëèíèè -15 VE13 Ïåðåãðåâ, ñðàáîòàë òåðìîñòàò.E14 Îøèáêà ñåðâîóñòàíîâêè òîêà

Ýòà îøèáêà ãîâîðèò î òîì, ÷òî âûïðÿìèòåëü íå â ñîñòîÿíèèâûäåðæèâàòü çàäàííûå ïàðàìåòðû, íàïðèìåð, èç-çà ñëèøêîì äëèííîéäóãå ïðè ðó÷íîé äóãîâîé ñâàðêå. Ïîñëå íåñêîëüêèõ ñåêóíä ðàáîòû âíîðìàëüíûõ óñëîâèÿõ ýòà îøèáêà èñ÷åçàåò.

Ïðè ïîÿâëåíèè òàêèõ îøèáîê ïîñòîÿííî èëè äîñòàòî÷íî ÷àñòî îáðàùàéòåñü çàïîìîùüþ â ñåðâèñíóþ ñëóæáó ôèðìû ESAB.

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6 ÒÅÕÍÈ×ÅÑÊÎÅ ÎÁÑËÓÆÈÂÀÍÈÅ

Ðåãóëÿðíîå òåõíè÷åñêîå îáñëóæèâàíèå èìååò âàæíîå çíà÷åíèå äëÿîáåñïå÷åíèÿ áåçîïàñíîñòè è íàäåæíîñòè.

Ïðèìå÷àíèå:à àðàíìèéíú²å îáÿçàìåëüñòâà ïîñòàâùèêà òåðÿþò ñèëó, åñëè ïîêóïàòåëúñàìîñòîÿòåëúíî ïûòàåòñÿ ïðîèçâåñòè êàêèå-ëèáî ðàáîòû ïî óñòðàíåíèþíåèñïðàâíîñòåé èçäåëèÿ â òå÷åíèå ãàðàíòèéíîãî ñðîêà.

Ïîäêëþ÷åíèå, îáñëóæèâàíèå è ðåìîíò ñâàðî÷íîãî îáîðóäîâàíèå, ñâÿçàííûåñî ñíÿòèåì çàùèòíûõ ùèòêîâ, âûïîëíÿþòñÿ ëèöàìè, ïðîøåäøèìèñîîòâåòñòâóþùóþ ýëåêòðîòåõíè÷åñêóþ ïîäãîòîâêó è àòòåñòîâàííûìè íà ïðàâîâûïîëíåíèÿ òàêèõ ðàáîò.

 ïðèíöèïå Aristotig 255 íå òðåáóåò ñïåöèàëüíîãî îáñëóæèâàíèÿ. Îáû÷íîäîñòàòî÷íî ïðîäóâàòü óñòàíîâêó ÷èñòûì ñæàòûì âîçäóõîì è î÷èùàòüâîçäóøíûé ôèëüòð. Åñëè óñòàíîâêà ýêñïëóàòèðóåòñÿ â î÷åíü çàãðÿçíåííûõóñëîâèÿõ ôèëüòð íàäî î÷èùàòü êàê ìîæíî ÷àùå.

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Ñíÿòèå ôèëüòðà

7 ÇÀÊÀÇ ÇÀÏÀÑÍÛÕ ×ÀÑÒÅÉ

Ðàáîòû ïî ðåìîíòó è ýëåêòðè÷åñêîìó ìîíòàæó äîëæíû âûïîëíÿòüñÿêâàëèôèöèðîâàííûì ñïåöèàëèñòîì ESAB .Íåîáõîäèìî èñïîëüçîâàòü òîëüêî çàïàñíûå ÷àñòè, âûïóùåííûå ôèðìîéESAB.

Çàïàñíûå ÷àñòè ìîæíî çàêàçòú ó áëèæàéøåãî ê Âàì ESAB, (ñì. ïåðå÷åíú íàïîñëåäíåé ñòðàíèöå äàííîé áðîøþðû).

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1 DIRECTIVE 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 SAFETY 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 INTRODUCTION 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 TECHNICAL DATA 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 INSTALLATION 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1 Lifting instructions 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 OPERATION 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.1 Control panel 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.2 Other functions 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.3 Fault tracing 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 MAINTENANCE 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 ORDERING OF SPARE PARTS 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DIAGRAM 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ORDERING NUMBER 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SPARE PARTS LIST 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ACCESSORIES 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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1 DIRECTIVE

DECLARATION OF CONFORMITYEsab Welding Equipment AB, 695 81 Laxå, Sweden, gives its unreserved guaranteethat welding power source LTN 255 from serial number 745 complies with standardEN 60974--1, in accordance with the requirements of directive (73/23/EEA) and ad-dendum (93/68/EEA) and standard EN 50199 in accordance with the requirementsof directive (89/336/EEA) and addendum (93/68/EEA).--------------------------------------------------------------------------------------------------------------------------------------

Paul KarlssonManaging DirectorEsab Welding Equipment AB695 81 LAXÅSWEDEN Tel: + 46 584 81000 Fax: + 46 584 12336

Laxå 97--10--30

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 EMPLOYER’S 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.

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WARNING!Read and understand the instruction manual before installingor operating.

Do not use the power source for thawing frozen pipes.WARNING!

This product is solely intended for arc welding.

3 INTRODUCTION

LTN 255 are rectifiers designed using inverter technology and are intended for TIG --welding and welding using coated electrodes.Inverter technology contributes towards low power consumption, a low weight andcompact dimensions.The advanced electronics with microprocessor control provides, amongst others,quick regulation and top class welding characteristics.

LTN 255 is equipped with ARC 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 powersource’s dynamics can be adjusted, softer or harder depending on the type of elec-trode and the welder’s preference.

ARC PLUS -- because of the regulator’s 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 machinecan be activated to facilitate welding.

LTN 255 is available in two designs, one with a central connector and one with anOKC connector for a TIG torch.LTN 255 is supplied complete with a 5 metre mains cable, 5 metre return cable, gashose and hose clips. Machines with a central connector are also fitted with a safetybar 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 and cooling unit.

ESAB’s accessories for the product can be found on page 28.

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4 TECHNICAL DATA

Permitted load at35 % duty cycle, TIG 250 A/20 V35 % duty cycle, MMA 250 A/30 V60 % duty cycle 180 A/27 V100 % duty cycle 140 A/26 V

Setting range, TIG 3--250 ASetting range, MMA 4--250 A

Slope up 0--10 sSlope down 0--10 s

Gas pre--flow 0--25 sGas post--flow 0--25 s

Pulse time 0,02--5,0 s(0,001--5,0 s)

Pause time 0,02--5,0 s(0,001--5,0 s)

Open--circuit voltage 70--80 VOpen--circuit power 40 WUseful Power, P

at max current MMA 8,78 kWApparent Power, S

at max current MMA 13,3 kVa

Power factor, at max current MMA 0,65Efficiency, at max current MMA 0,85Fuse, slow rupture 16 AMains cable,cross section 4x1,5 mm2

Dimensions lxwxh 515x285x415 mmWeight 25 kg

Application classClass of enclosures 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 classThe IP code indicates the enclosure class, i. e. the degree of protection against penetration by solidobjects or water. Equipment marked IP23 is designed for indoor and outdoor use.

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-- 18 --bt19d12e

5 INSTALLATIONThe 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 user’s responsibility to take adequate precautions.

Mains voltage 400 V ¦ 10 % , 3--phase

Mains frequency 50--60 Hz

Fuse, slow rupture 16 AMains cable, cross section 4x1.5 mm2

Welding cable, cross section 35 mm2

LTN 255 are equipped with mains voltage compensation, which means that a ¦10 %variation in the mains voltage only results in a ¦0,2 % variation in the welding cur-rent.

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

GB

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6 OPERATION

General safety regulations for the handling of the equipment can be found onpage 15. Read through before you start using the equipment!

84 5 3 2

1

9

610 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-t d t 11 d 126. Push--buttons nected to 11 and 12

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 and push--but-tons.By using the push--buttons you can move between the different functions. The se-lected function is indicated by respective LEDs coming on.One line at a time is set. The current line is indicated by a red LED. Movement be-tween 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 ignition

bt07t001

Place the electrode against theworkpiece.

Press in the torch switch.

GB

bt07d002

-- 21 --bt19d12e

Tilt the torch a little, lift and an arc isproduced.

bt07t002To stop--releasethe torch trigger.

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

Line 4 2 step or 4 step trigger action2 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 in”1” 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”.

bt07d003

Line 5 Parameter setting

1. Gas pre flow 0--25 s2. Slope up 0--10 s3. Pulse current or continuous current 3--250 A4. Pulse time 0,02--5,0 s (0.001--5.0 s)5. Pause current 3--250 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

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-- 22 --bt19d12e

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 ma-chine’s 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) All set-tings on line 5.

MMA: Welding current

The welding data memory is changed using the green arrowkeys.Changes can also be made by quickly pressing the torch trigger, re-gardless 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.

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 allowbetter 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 machine’s dynamic. A softer or harder arc can beobtained. The machine should be in the current setting mode when activating thefunction 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.

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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 machine’s 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 thetwo 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 remotely regu-lated 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 steppingto 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 control’s 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.

6.3 Fault tracing

Error CodesLTN 255 is equipped with integrated error monitoring. If an error should occur thenan 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 the ma-chine 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 255 do not require any maintenance. Normally, it is sufficient toblow out the machine using clean, compressed air annually, and the dust filter shouldbe cleaned regularly.If the machine is set up in dusty or dirty environments the machine and dust filtershould be cleaned more often.

bt07d109

Dismantling the filter.

8 ORDERING OF SPARE PARTS

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

LTN 255 is designed and tested in accordance with the international and Europeanstandards IEC/EN 60974--1 and EN 50199. It is the obligation of the service unit whichhas carried out the service or repair work to make sure that the product still conformsto the said standard.

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

GB

Edition 041101

Diagram Ñõåìà

-- 25 --bt19e11a

LTN 255

Edition 041101

Ordering number Íîìåð çàêàçà

-- 26 --bt19o11a

Ordering no. Denomination Type Notes

0468 300 894 Welding power source LTN 255 400V 50/60Hz,with central connector for TIG welding

0468 300 895 Welding power source LTN 255 400V 50/60Hz,with OKC connector for TIG welding

0457 328 990 Spare parts list LTN 255

LTN 255

Edition 041101

Spare parts list Ñïèñîê çàïàñíûõ ÷àñòåé

-- 27 --bt19s11a

Item Qty Ordering no. Denomination

1 2 0441 819 001 Screw

2 1 0468 275 001 Grill

3 1 0468 519 001 Filter

LTN 255

Edition 041101

Accessories Äîïîëíèòåëüíûå ïðèíàäëåæíîñòè

-- 28 --bt19a11a

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

LTN 255

Edition 041101-- 29 --bt19a11a

bt07t004

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

LTN 255

Edition 041101-- 30 --bt19a11a

Remote cable 12 pole -- 8 pole5 m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0459 552 8800459 552 8810459 552 8820459 552 883

Foot control FS002,including cable . . . . . . . . . . . . . . . . . . .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 & 200

Welding 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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