Service manual

7-2

SOUND LEVEL CHARACTERISTICS

SM DLF 1-A.1 GB

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

NC-10

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

BAND CENTER FREQUENCIES, Hz

DLF 50 DLF 60

DLF 72

BAND CENTER FREQUENCIES, Hz

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

FAN SPEED LINE

BAND CENTER FREQUENCIES, Hz

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

CONTENT