Noise Criterion Curves - Mitsubishi Electric PCA-RP50GA Service Manual

5

NOISE CRITERION CURVES

PCA-RP50GA
PCH-P50GAH
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PCA-RP100GA
PCH-P100GAH
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
NOTCH SPL(dB) LINE
42
High
40
Medium1
38
Medium2
37
Low
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
NOTCH SPL(dB) LINE
High 45
Medium1
43
Medium2 41
Low 40
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
PCA-RP50GA2
PCA-RP60GA
PCA-RP71GA
PCH-P60GAH
PCH-P71GAH
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
PCA-RP125GA
PCH-P125GAH
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
13
NOTCH SPL(dB)
High 43
Medium1 41
Medium2 39
Low 37
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
NOTCH SPL(dB)
High 46
Medium1
45
Medium2 43
Low 41
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000