Duty Cycle - Porter-Cable CMB15-B3 Instruction Manual

GLOSSARY
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.
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 inde-
® ®
pendent safety laboratories and meet the applicable Standards for Safety.
*UL is a registered trademark of Underwriters Laboratories and ETL is a regis-
® ®
tered trademark of Electrical Testing Laboratories.
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 lower 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: 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.
ACCESSORIES
Accessories for this unit are available at the store the unit was purchased.
The use of any other accessory not recommended for use with
this tool could be hazardous. Use only accessories rated equal to or higher
than the rating of the air compressor.
8 - ENG