Mitsubishi Electric Mr.Slim PLA-RP100AA2, Service Manual

Page: 10 / 40

10
5
NOISE CRITERION CURVES
PLA-RP100AA2.UK
NOTCH SPL(dB) LINE
41
39
36
33
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
High
Medium1
Medium2
Low
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
µ
bar)
PLA-RP125AA2.UK
NOTCH SPL(dB) LINE
45
43
40
37
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
µ
bar)
BAND CENTER FREQUENCIES, Hz
High
Medium1
Medium2
Low
UNIT
1.5m
MICROPHONE
CEILING
PLA-RP140AA2.UK
NOTCH SPL(dB) LINE
45
43
40
37
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
µ
bar)
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
High
Medium1
Medium2
Low
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