DeWalt D55170 Guide D'utilisation page 25

GLOSSARY
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.
kPa (kilopascal): Metric pressure measurement. 1 kilopascal equal 1000 pascals.
Code Certification: Products that bear one or more of the following marks: UL, CUL, ETL, CETL, have been evaluated by OSHA certified
independent safety laboratories and meet the applicable Underwriters Laboratories Standards for Safety.
California Code: Unit may comply with California Code 462 (l) (2)/(M) (2). Specification/model label is on the side of the air tank on units
that comply with California Code.
Pilot Valve Blow-Off Pressure: Continuous running units are controlled by air tank pressure. When the maximum air tank pressure is
obtained, the pilot valve will blow-off. This will cause the compressor to exhaust the air through the pump head and not fill the tank.
This decreases the load on the motor and allows it to run at a near no-load condition. NOTE: For proper operation the pilot valve
blow-off pressure must be below the pressure switch cut-out pressure.
Pilot Valve Reset Pressure: When the air tank pressure drops to a predetermined point, the pilot valve closes. The air tank pressure will
now increase until it reaches the pilot valve blow-off pressure.
Cut-In Pressure: While the motor is off, air tank pressure drops when accessory is used. When the tank pressure drops to a certain low
level the motor will restart automatically. The low 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 high pressure before the motor automatically shuts off, protecting your air tank from pressure higher than its capacity. The
high pressure at which the motor shuts off is called cut-out pressure.
Branch Circuit: The circuit carrying electricity from electrical panel to outlet.
Duty Cycle: This air compressor pump is capable of running continuously. However, to prolong the life of your air compressor, it is
recommended that a 50%-75% average duty cycle be maintained; that is, the air compressor pump should not run more than 30-
45 minutes in any given hour.
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