Operation Manual
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A5 TIG Orbital System 75© Kemppi Oy 2016 1615
OPERATING MANUAL
A
9. Press the Conrm button.
10. Make a second test weld. Repeat the adjustment
process as necessary.
If the weld is excessively wide and the OD is concave,
decrease the amperage by a percentage and make another
test weld. The correction percentage appears on the main
screen as a digit (+ amps) or as a minus digit (- amps).
3.5.12 Icons and screens during welding
Various screens display during welding to indicate the
function in progress.
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1. Pre-purge
Press Start Weld on the weld head to initiate the weld
sequence. Purging of gas inlet hose and weld head with
argon occur for a preprogrammed time in seconds.
Remaining time is displayed.
2. Arc ignition and weld progress
The electrode does not start to rotate immediately
following arc ignition. This delay allows the arc to penetrate
to the tube I.D. The delay time is determined by the tube
wall thickness dimension. The electrode in the graphic
rotates at the same speed as the actual electrode.
3. Post-purge
Following weld completion, the purge gas continues to
ow for a predetermined time. This is to allow the weld to
cool adequately to prevent oxidation of the stainless weld.
Do not open the weld head during post-purge.
4. Weld cycle completed
You can now remove the weld head from the workpiece.