Operation Manual
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A7 TIG Orbital System 150© Kemppi Oy 2016 1615
OPERATING MANUAL
3.8.10 Pre-purge – Upslope Screen
Move the cursor and enter values with the control knob.
Press Next when nished.
• Pre-purge: the time period when gas ows at
weld start before arc ignition (seconds).
• Upslope: the time period in seconds that the weld
current ramps up from start amps value to level 1
value.
• Travel Delay: the period (seconds) beginning at
end of upslope before rotation begins. Used to
establish penetration.
• Start Amps: current level at which arc is initiated.
3.8.11 Pass level screens
Pass 1, Level 1
Move the cursor and enter values with the control knob.
• Amps: current at each level (using pulsed current,
this is high pulse current).
• RPM: Rotation Speed
• LP Amps: Low Pulse Amperage, shown as
percentage of high pulse current.
• HPT: High Pulse Time Period, in seconds.
• LPT: Low Pulse Time Period, in seconds.
• HP RPM: rotation speed on high current pulse
(shown only when RPM STEP is turned ON). Can
be set at any percentage from 0–99 of the low
pulse speed listed RPM.
• Level Time: the time during which these
parameters will be active in seconds.
• Time Remaining: as the tube size is input,
selection of RPM automatically calculates Total
(weld) Time.
• Time Remaining: automatically calculated once
Level Time is entered.
• Total Time: total time for weld in seconds. Enter
values and press Next soft key to go to Level 2.
Parameters are automatically carried down through
the levels.
The software of the 150 series controller makes it very easy
to copy parameters from one level to the next by merely
pressing Next.
Be careful when changing parameters at one specic
level to avoid unwanted changes.