Miller XMT 456CV 소유자 매뉴얼 - 페이지 30

{카테고리_이름} Miller XMT 456CV에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Miller XMT 456CV 44 페이지.

5-7. Lift-Arc TIG Procedure For CC/CV Models

OM-203 034 Page 26

1 − 2

"Touch"

Seconds

Do NOT Strike Like A Match!

With Mode switch in the Lift-Arc TIG

position, start an arc as follows:

TIG Electrode

Workpiece

Touch tungsten electrode to work-

piece at weld start point, hold

electrode to workpiece for 1-2

seconds, and slowly lift electrode.

An arc will form when electrode is

lifted.

Normal open-circuit voltage is not

present before tungsten electrode

touches workpiece; only a low

sensing voltage is present between

electrode and workpiece. The

solid-state output contactor does

not energize until after electrode is

touching workpiece. This allows

electrode to touch workpiece with-

out overheating, sticking, or getting

contaminated.

Ref. S-156 279