Noise Criterion Curves - Mitsubishi Electric Mr. SLIM PLA Series Service Manual

5

NOISE CRITERION CURVES

PLA-A12EA7R1.TH
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
PLA-A24EA7R1.TH
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
TCH070A
TCH070A.indd 17 TCH070A.indd 17
NOTCH SPL(dB)
High
Medium1
Medium2
Low
125 250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
NOTCH SPL(dB)
High
Medium1
Medium2
Low
125 250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
PLA-A18EA7R1.TH
LINE
30
29
28
27
90
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
NC-20
CONTINUOUS
NOISE
10
4000 8000
PLA-A30EA7R1.TH
LINE
36
33
30
28
90
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
NC-20
CONTINUOUS
NOISE
10
4000 8000
17
NOTCH SPL(dB)
High
Medium1
Medium2
Low
63 125 250 500 1000
BAND CENTER FREQUENCIES, Hz
NOTCH SPL(dB)
High
Medium1
Medium2
Low
63 125 250 500 1000
BAND CENTER FREQUENCIES, Hz
LINE
32
31
29
28
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
2000 4000 8000
LINE
38
35
32
28
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
2000 4000 8000
7/2/2565 16:46:47 7/2/2565 16:46:47