Operation Manual
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A7 MIG Welder© Kemppi Oy 2018 1824
OPERATING MANUAL
4.10.3 Gas mixture setup
Knowing the exact mixture of the shielding gas is necessary for precise gas ow
measurement. The gas ow sensor unit supports ow measurement for any mixture of
the six base gases, including pure base gases. The mixtures are set up by specifying the
percentage of each gas in the mixture.
Recongure the mixture every time when the type of the shielding gas is changed.
The percentage of Argon is changed automatically when adjusting other gases, the
total percentage being always 100 %. For example, if Carbon dioxide is increased from 0 to
18 %, Argon is changed automatically from 100 to 82 %. This applies for Ar+18CO₂ gas. If
Carbon dioxide is increased to 100 %, Argon is decreased to 0 %. This applies for pure CO₂
gas, etc.
Setup panel
Go to the Main menu > System cong menu > Gas sensor menu > Gas mixture menu.
Navigate through the gas parameters and adjust their percentage in the mixture by
turning the control knob, according to the shielding gas in use. Press the Save button to
save the changes.
Web user interface
Go to the Welding settings > Welding system > Gas sensor settings and adjust the gases
by using sliders, or by clicking on the value and typing a new value. A pop-up bar with
Save and Reset changes buttons will appear at the bottom. Press the Save button in the
dialog to save the settings.