Electra DELTA 22, Руководство по обслуживанию

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6-1
SOUND LEVEL CHARACTERISTICS
Revision Y05-02 Service Manual - Delta DCI
6. SOUND LEVEL CHARACTERISTICS
6.1 Sound Pressure Level
Figure 1. Wall Mounted Figure 2. Floor Mounted
Figure 3. Ducted Figure 4. Cassette
6.2 Soud Pressure Level Spectrum (Measured as Figure 1)
Delta 22 Delta 25
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,
d
B
re
0
.002
MICRO
BAR
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
P
RESSURE
LEVEL,
dB
re
0.002
M
ICRO
BAR
FAN SPEED LINE
HI
ME
LO