Airwell FLO 18 DCI, Руководство по обслуживанию

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6-1
SOUND LEVEL CHARACTERISTICS
SM FLODCI 2-A.4 GB
6. SOUND LEVEL CHARACTERISTICS
6.1 Sound Pressure Level
6.2 Sound Pressure Level Spectrum
(Measured as Figure 1)
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
OCT
A
VE
BAND
SOUND
PRESSURE
LEVEL,
dB
re
0.002
M
ICRO
BAR
FAN SPEED LINE
HI
ME
LO
1m
0.8m
Mic.
Unit
Wall
BAND CENTER FREQUENCIES, Hz
A PPRO X IM A TE
THRE S HOLD OF
HE A RING FOR
CONTINUOU S
NOI S E
NC-70
NC-60
NC-50
NC-40
NC- 3 0
NC-20
OCT
A
V
E
BAND
SOUND
PRESSURE
LEVEL,
dB
re
0.002
MICRO
BAR
BAND CENTER FREQUENCIES, Hz
A PPRO X IM A TE
THRE S HOLD OF
HE A RING FOR
CONTINUOU S
NOI S E
NC-70
NC-60
NC-50
NC-40
NC- 3 0
NC-20
OCT
A
V
E
BAND
SOUND
PRESSURE
LEVEL,
dB
re
0.002
MICRO
BAR
FLO 24 FLO 30
FLO 18 FLO 21
Figure 1
CONTENTS