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GLOSSARY OF TERMS
Become familiar with these terms before operating the unit.
CFM: Cubic feet per minute.
SCFM: Standard cubic feet per minute; a unit of measure of air delivery.
PSI: Pounds per square inch ; a unit of measure of pressure.
Cut-In Pressure: While the motor is off, air tank pressure drops as you continue to use
your accessory. When the tank pressure drops to a certain level, the motor will restart
automatically. The pressure at which the motor automatically restarts is called "cut-in"
pressure.
Cut-Out Pressure: When an air compressor is turned on and begins to run, air pressure in
the air tank begins to build. It builds to a certain pressure before the motor automatically
shuts off - protecting your air tank from pressure higher than its capacity. The pressure at
which the motor shuts off is called "cut-out" pressure.
Branch Circuit: Circuit carrying electricity from the electrical panel to the outlet.
Air compressors should be operated on not more than a 50% duty cycle. This means that
forcing an air compressor to pump air more than 50% of one hour is considered misuse,
because the air compressor is undersized for the required air demand. Maximum compressor
pumping time is 30 minutes per hour.
DUTY CYCLE
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