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No. Function
(1) Mode/welding process button 
For selecting welding processes and mode
(2) Gas-test button
To set the required shielding gas flow rate on the gas pressure regulator
After pressing the gas-test button, shielding gas flows for 30 seconds. Press the 
button again to stop the gas flow prematurely.
(3) Key card reader for NFC keys
MW / TT 230i only and only in certified countries
to lock/unlock the power source using NFC keys
NFC key = NFC card or NFC key ring
(4) Adjusting dial with turn/press function
- To select elements, set values and scroll through lists
- To save jobs when the FP Job function package is present:
if the adjusting dial is pressed for more than 3 seconds, the selected welding pa-
rameters are saved as a job.
An overview of the most important parameters will be displayed.
For more information about how to save a job, see Setup settings / The Job menu 
/ Saving jobs starting on page 105
(5) Menu key
To open the Setup menu
(6) Favourites button
To save/retrieve preferred settings
(7) Display
(8) Hold indicator - welding current
At the end of each welding operation, the actual values for the welding current and 
welding voltage are stored - HOLD lights up.
(9) Status bar
The status bar displays the following information:
- Current welding process
- Current operating mode
- Selected current type
- Active functions (e.g. high frequency ignition, tacking, pulsing, etc.)
- Indication of electrode overload
- Status of the power source (locked/unlocked)
- Active Bluetooth connection
- Time
- Date
The information shown in the status bar varies according to which welding process 
has been selected.
(10) Hold indicator - welding voltage
At the end of each welding operation, the actual values for the welding current and 
welding voltage are stored - HOLD lights up.