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19
Fig. 19
Ignition with HF ignition
a) Fit gas nozzle
b) Contact-free HF ignition
c) Arc is ignited
Ignition monitoring
If, after fruitless attempts to ignite an arc or after an arc-interrupt, the welder forgets to
stop the control sequence
(2-step or 4-step)
by means of the torch trigger, the shielding
gas will continue to flow, leading to considerable wastage of gas. To prevent this, a
monitoring function automatically interrupts the control sequence after approx.
5 se-
conds
in such a case. When another attempt is made to ignite an arc, this must once
again be initiated via the torch trigger.
Start up
(continued)
Содержание TransTig 1600
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