ARCMASTER 401MST POWER SOURCE
INSTALLATION, OPERATION AND SETUP
3-8
Manual 0-5287
6 Save/Load Buttons
By using the Save & Load buttons the operator can easily save up to 10 welding parameter programs (including
welding process, current/ voltage and other parameters such as arc force, inductance and hot start).
To Save a program
• Press and HOLD the SAVE button for 2 seconds.
• Select a job number by rotating the Encoder Control, with job number displayed on the lower meter.
• After selecting the desired job number (i.e. 1 to 10), press Parameter Selection Button (Item 3) to save
the job.
To Load a program
• Press and HOLD the LOAD button for 2 seconds.
• Select a job number by rotating the Encoder Control, with job number displayed on the meter.
• After selecting the desired job number(i.e. 1 to 10), press Parameter Selection Button (Item 3) to load
the job.
7 Process Selection Button
The process selection control is used to select the desired welding mode. Six modes are available for the 401MST:
The MIG function has two modes: MIG (GMAW/FCAW)-The Process light is illuminated; CO
2
(GMAW/FCAW)-
The Process light is blinking.
Lift TIG (GTAW)- The Process light is illuminated.
The Stick function has two modes: Stick (SMAW)- The Process light is illuminated; Arc Gouging (CAC-A)- The
Process light is blinking.
6010 Stick (SMAW)- The Process light is illuminated.
The standard mode will be MIG with argon or argon mixes. The LED for MIG will be on. The other mode will be
dedicated for straight CO
2
gas operation. The same LED will be on, but will blink instead.
8 Remote Control
Local Control
Remote Control
The remote control A/V is for both Current or Voltage depending on the process selected. This control toggles
between Local and Remote. Refer to 3.14 Special Function for more info.
