–17–
[6] NC Curve (Outdoor unit)
(1) Octave Band Analysis
1
PUH-P8YE
2
PUH-P8YE
Note: The measuring point is 1m from the bottom of the unit (1m from the front of the unit)
Note: The measuring point is 1m from the bottom of the unit (1m from the front of the unit)
OCT
A
VE BAND PRESSURE LEVEL< dB> 0dB = 0.0002
µ
bar
OCT
A
VE BAND PRESSURE LEVEL< dB> 0dB = 0.0002
µ
bar
56 dB (A)
57 dB (A)
Sound pressure level in anechoic room
Sound pressure level in anechoic room
Measurement condition
Measurement condition
63Hz
63
125Hz
60
250Hz
56
500Hz
56
1000Hz
51
2000Hz
47
4000Hz
44
8000Hz
40
(dB)
63Hz
63
125Hz
59
250Hz
56
500Hz
55
1000Hz
50
2000Hz
45
4000Hz
42
8000Hz
39
(dB)
1m
1m
A
B
1m
1m
A
B
NC60
NC50
NC40
NC30
NC20
Approximate minimum
audible limit on
continuous noise
70
60
50
40
30
20
63
125
250
500
1000
2000
4000
8000
10
OCTAVE BAND CENTER FREQUENCIES <Hz>
NC60
NC50
NC40
NC30
NC20
70
60
50
40
30
20
63
125
250
500
1000
2000
4000
8000
10
OCTAVE BAND CENTER FREQUENCIES <Hz>
Approximate minimum
audible limit on
continuous noise