Sound Pressure Level - Haier AB072MRERA Service Manual

7.8 Sound pressure level

(1) Testing illustrate:
(2) Testing condition:
a. Unit running in the nominal 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:
AC09~242MCERA
70
60
50
40
30
20
Limit of
audible
continuous
10
noise
63 125 250
Octave band center frequency (HZ)
500 1000 2000 4000 8000
70
60
50
40
30
20
Limit of
audible
continuous
10
noise
63 125
Octave band center frequency (HZ)
1m
70
60
50
40
30
20
Limit of
audible
continuous
10
noise
63 125
Octave band center frequency (HZ)
AC38~482MFERA
250 500 1000 2000 4000 8000
165
AC28~302MFERA
250 500 1000 2000 4000 8000