Noise Criterion Curves; Pka-A12Gal; Pka-A18Gal; Pka-A24Fal - Mitsubishi Electric Mr.SLIM PKA-A12GA Service Manual

6

NOISE CRITERION CURVES

PKA-A12GA PKA-A12GA

PKA-A12GAL

PKA-A12GAL
PKA-A18GA PKA-A18GA

PKA-A18GAL

PKA-A18GAL
PKA-A12GA
1
PKA-A12GAL
1
PKA-A18GA
1
PKA-A18GAL
1
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PKA-A36FA PKA-A36FA

PKA-A36FAL

PKA-A36FAL
PKA-A36FA
1
PKA-A36FAL
1
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
2
2
2
2
SPL(dB) LINE
NOTCH
High 43
Medium1 41
38
Medium2
Low
36
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
2
2
NOTCH SPL(dB) LINE
High 49
Low 46
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
PKA-A24FA
PKA-A30FA

PKA-A24FAL

PKA-A30FAL

PKA-A24FA
PKA-A30FA
PKA-A24FAL
PKA-A30FAL
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
3.3ft
MICROPHONE
11
PKA-A24FA
2
PKA-A30FA
2
PKA-A24FAL
2
PKA-A30FAL
2
1
1
NOTCH
1
High
Low
1
125 250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
UNIT
3.3ft
SPL(dB) LINE
45
39
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000
WALL