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Glossary, Duty cycle – Porter-Cable N028591 User Manual

Page 7

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7 - ENG

HAZARD

RISk FROM NOISE

WHAT CAN HAPPEN

HOW TO PREVENT IT

• Under some conditions and dura-

tion of use, noise from this product

may contribute to hearing loss.

• Always wear certified safe-

ty equipment: ANSI S12.6

(S3.19) hearing protection.

SAVE THESE INSTRUCTIONS

FOR FUTURE USE

SPECIFICATIONS

Model No.

C7501

Running Horsepower

*3.0

Voltage/Hertz/Phase

240V/60/1

Minimum Branch Circuit Requirement

15 Amp

Fuse Type

Time Delay

Air Tank Capacity (Gallon)

60 ASME, Vertical (227.1 liters)

Approximate Cut-in Pressure

110 PSIG

Approximate Cut-out Pressure

135 PSIG

SCFM @ 40 PSIG

*12.2

SCFM @ 90 PSIG

*10.1

*Tested per ISO 1217
Refer to Glossary for abbreviations.

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 independent safety

laboratories and meet the applicable Standards for Safety.
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 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: Circuit carrying electricity from electrical panel to outlet.
To Lock Out Power: Place a lock on the line power switch so no one else can

turn on the power.

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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