Air Compressor Terms And Definitions - Vanair AIR N ARC RELIANT 250 Series Operations Manual & Parts List

GLOSSARY
minutes and then must be allowed to cool
with the fan motor running for 4 minutes.
Flux Cored Arc Welding (FCAW) - An arc
welding process which melts and joins
metals by heating them with an arc between
a continuous, consumable electrode wire
and the work. Shielding is obtained from a
flux contained within the electrode core.
Added shielding may or may not be provided
from externally supplied gas or gas mixture.
Hertz - Hertz is often referred to as "cycles
per second". In the United States, the
frequency or
alternating current is usually 60 hertz.
KVA (Kilovolt-amperes) - Kilovolt-amperes.
The total volts times amps divided by 1,000,
demanded by a welding power source from
the primary power furnished by the utility
company.
KW (Kilowatts) - Primary KW is the actual
power used by the power source when it is
producing its rated output. Secondary KW is
the actual power output of the welding power
source. Kilowatts are found by multiplying
volts and amps and dividing by 1,000 and
taking into account any power factor.
Microprocessor - One or more integrated
circuits that can be programmed with stored
instructions to perform a variety of functions.
MIG Welding (GMAW or Gas Metal Arc
Welding) - Also referred to as solid wire
welding. An arc welding process which joins
metals by heating them with an arc. The arc
is between a continuously fed filler metal
(consumable) electrode and the work piece.
Externally supplied gas or gas mixtures
provide shielding.
Open-Circuit Voltage (OCV) - As the name
implies, no current is flowing in the circuit
because the circuit is open. The voltage is
impressed upon the circuit, however, so that
when the circuit is completed, the current will
flow immediately.
Plasma Arc Cutting - An arc cutting
process which severs metal by using a
constricted arc to melt a small area of the
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directional change
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AIR N ARC 200 SERIES ALL-IN-ONE POWER SYSTEM
work. This process can cut all metals that
conduct electricity.
Pounds Per Square Inch (psi) - A
measurement equal to a mass or weight
applied to one square inch of surface area.
Rated Load - The amperage and voltage the
power source is designed to produce for a
given specific
example, 275 amps, 25 load volts, at 60%
duty cycle.
Stick Welding (SMAW or Shielded Metal
Arc) - An arc welding process which melts
of
and joins metals by heating them with an arc,
between a covered metal electrode and the
work. Shielding gas is obtained from the
electrode outer coating, often called flux.
Filler metal is primarily obtained from the
electrode core.
TIG Welding (GTAW or Gas Tungsten Arc)
- Often called TIG welding (Tungsten Inert
Gas), this welding process joins metals by
heating them with a tungsten electrode
which should not become part of the
completed weld. Filler metal is sometimes
used and argon inert gas or inert gas
mixtures are used for shielding.
Voltage - The pressure or force that pushes
the electrons through a conductor. Voltage
does not flow, but causes amperage or
current to flow. Voltage is sometimes termed
electromotive force (EMF) or difference in
potential.
Voltage-Sensing Wire Feeder - Feeder
operates from arc voltage generated by
welding power source.
Wire Feed Speed - Expressed in in/min or
mm/s, and refers to the speed and amount of
filler metal fed into a weld. Generally
speaking the higher the wire feed speed, the
higher the amperage.
G.3 AIR COMPRESSOR
TERMS AND
DEFINITIONS
Aftercoolers - devices for removing the heat
of compression of the air or gas after
duty cycle period. For
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