Haier AB072MRERA - Sound Pressure Level

270
11.8 Sound pressure level
(1) Testing illustrate:
Air outlet duct
Air inlet
1.5M
(2) Testing condition:
a: Unit running in the normal condition
b: Test in the semi-anechoic chamber
c: Noise level varies from the actual factors such as room structure, etc.
(3) Octave band level:
Octave band sound pressure level dB
70
60
40
30
20
10
63 125 250 500 1000 2000 4000 8000
50
Limit of
audible
continuous
noise
Octave band center frequency (HZ)
Octave band sound pressure level dB
70
60
40
30
20
10
63 125 250 500 1000 2000 4000 8000
50
Limit of
audible
continuous
noise
Octave band center frequency (HZ)
Octave band sound pressure level dB
70
60
40
30
20
10
63 125 250 500 1000 2000 4000 8000
50
Limit of
audible
continuous
noise
Octave band center frequency (HZ)
AD182~282MMERA AD302~382MMERA
AD482MMERA