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WELDER OPERATION
DUTY CYCLE
Duty Cycle is the percentage of time the load is being applied in a 10 minute period. For example a 60% duty cycle, represents 6 minutes of load and 4 minutes of no load in a 10 minute period.
STICK WELDING MODE
The AIR VANTAGE® 500 (AU) can be used with a broad range of DC stick electrodes. The MODE switch provides two stick welding settings as follows:
CC-STICK MODE
The
The ARC CONTROL knob sets the short circuit (arc- force) current during stick welding. Increasing the number from
TOUCH START TIG MODE
The AIR VANTAGE® 500 (AU) can be used in a wide variety of DC TIG welding applications.
The TOUCH START TIG setting of the MODE switch is for DC TIG (Tungsten Inert Gas) welding. To initiate a weld, the OUTPUT CONTROL knob is first set to the desired current and the tungsten is touched to the work. During the time the tungsten is touching the work there is very little voltage or current and, in gen- eral, avoids tungsten contamination. Then, the tung- sten is gently lifted off the work in a rocking motion, which establishes the arc.
To stop the arc, simply lift the TIG torch away from the work piece. When the arc voltage reaches approxi- mately 30 volts, the arc will go out and the machine will automatically reset to the touch start current level. The tungsten may then be retouched to the work piece to restrike the arc. The arc may also be started and stopped with an Amptrol or Arc Start Switch.
The ARC CONTROL is not active in the TIG mode.
In general the ‘Touch Start’ feature avoids tungsten contamination without the use of a
The AIR VANTAGE® 500 (AU) is equipped with the required R.F. bypass circuitry for the connection of high frequency generating equipment.
The AIR VANTAGE® 500 (AU) and any high frequen- cy generating equipment must be properly grounded. See the
When using the TIG Module, the OUTPUT control on the AIR VANTAGE® 500 (AU) is used to set the maxi- mum range of the CURRENT CONTROL on the TIG Module or an Amptrol if connected to the TIG Module.
AIR VANTAGE® 500 (AU) SETTINGS WHEN USING THE
•Set the WELD MODE switch to the “Touch Start Tig 20- 250 Setting”.
•Set the IDLER switch to the “AUTO” position.
•Set the WELDING TERMINALS switch to the “Remotely Controlled” position. This will keep the solid state contactor open and provide a “cold” electrode until the triggering device (Amptrol or Arc Start Switch) is pressed.
AIR VANTAGE® 500 (AU)