DeWalt D55684 Guide D'utilisation page 21

GLOSSARY
CFM: Cubic feet per minute.
SCFM: Standard cubic feet per minute; a unit of measure of air delivery.
PSIG: Pounds per square inch gauge; a unit of measure of pressure.
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.
Unloader Blow-Off Pressure: All models are continuous running units controlled by air tank pressure. When the maximum air tank
pressure is obtained, the unloader valve will blow-off. This will cause the compressor to exhaust the air to the atmosphere and
not the tank. This decreases the load on the engine and allows it to run at a near no-load condition.
Unloader Reset Pressure: When the air tank pressure drops to a predetermined point, the unloader valve closes. The air tank
pressure will now increase until it reaches the unloader blow-off pressure.
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