Glossary; General Terms And Definitions; Welding Terms And Definitions - Vanair Air N Arc All-in-One Power Systems 300 Operations Manual & Parts List

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AIR N ARC 300 SERIES ALL-IN-ONE POWER SYSTEM
TERMS AND DEFINITIONS
G.1 GENERAL TERMS AND
DEFINITIONS
Air/Oil Separator - Coalescer element.
CFM - Cubic Feet per Minute.
ft-lb - Foot Pound (torque measurement).
N.C. - Normally closed.
N.O. - Normally open.
RMA - Return
(number). This number is assigned by a
service technician, and is needed for
warranty claims.
RPM - Revolutions Per Minute.
Speed Control - Governor.
G.2 WELDING TERMS AND
DEFINITIONS
Air Carbon Arc Cutting (CAC-A) - A cutting
process by which metals are melted by the
heat of an arc using a carbon electrode.
Molten metal is forced away from the cut by
a blast of forced air.
Alternating Current (AC) - An electrical
current that reverses its direction at regular
intervals, such as 60 cycles alternating
current (AC), or 60 hertz.
Amperage - The measurement of the
amount of electricity flowing past a given
point in a conductor per second. Current is
another name for amperage.
Arc - The physical gap between the end of
the electrode and the base metal. The
physical gap causes heat due to resistance
of current flow and arc rays.
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GLOSSARY:

Material Authorization
090010-OP_r0
Constant Current (CC) Welding Machine -
These welding machines
maximum short circuit
consistent amperage regardless of the
voltage output.
Constant Voltage (CV) Welding Machine -
This type of welding
maintains a relatively stable, consistent
voltage regardless of the amperage output. It
results in a relatively flat volt-amp curve.
Current - Another name for amperage. The
amount of electricity flowing past a point in a
conductor every second.
Direct Current (DC) - Flows in one direction
and does not reverse its direction of flow as
alternating current does.
Direct Current Electrode Negative (DCEN)
- The direction of current flow through a
welding circuit when the electrode lead is
connected to the negative terminal and the
work lead is connected to the positive
terminal of a DC welding machine. Also
called direct current,
(DCSP).
Direct Current Electrode Positive (DCEP)
- The direction of current flow through a
welding circuit when the electrode lead is
connected to a positive terminal and the
work lead is connected to a negative
terminal to a DC welding machine. Also
called direct current,
(DCRP).
Duty Cycle - The number of minutes out of a
10-minute time period an arc welding
machine can be operated at maximum rated
output. An example would be 60% duty cycle
at 250 amps. This would mean that at 250
amps the welding machine can be used for 6
GLOSSARY
have limited
current, with
machine output
straight polarity
reverse polarity
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