Sound Pressure Level - Haier AB072MRERA Service Manual

20.8 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.
AS072-162MGERA
AS072-162MGERA
70
60
50
40
30
20
Limit of audible
continuous
noise
10
63 125 250
Octave band center frequency （ HZ ）
NC -60
NC -50
NC -40
NC -30
NC -20
H
M
L
500 1000 2000 4000 8000
1m
AS182/242MGERA
AS182/242MGERA
70
60
50
40
30
20
Limit of audible
continuous
noise
10
63 1252
Octave band center frequency (Hz)
509
NC-60
NC-50
NC-40
NC-30
NC-20
50 5001 0002 0004 0008
H
M
L
000