Sanyo Big PACi 18 Series - Page 105

1
1-100
1-8. Noise Criterion Curves
Concealed-Duct High Static Pressure Type
SOUND LEVEL :
CONDITION : WEAK
CONDITION : Under the unit1.5 m
MODEL : SPW-D905HMODEL : SPW-D705H
STRONG 48 dB(A),
45 dB(A),
SOUND LEVEL :
CONDITION : WEAK
CONDITION : Under the unit1.5 m
STRONG 50 dB(A),
48 dB(A),
Strong
Weak
Sound Pressure Level (dB) (0 dB = 0.0002 µbar)
Frequency at center of sound pressure band (Hz)
Overall
Approximate
minimum audible
limit for
continuous noise
500 1000 2000 8000250
10
20
30
40
50
60
70
80
90
125 4000
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
63
Sound Pressure Level (dB) (0 dB = 0.0002 µbar)
Frequency at center of sound pressure band (Hz)
Overall
Approximate
minimum audible
limit for
continuous noise
500 1000 2000 8000250
10
20
30
40
50
60
70
80
90
125 4000
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
63
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