Noise Criterion Curves - Mitsubishi Electric Mr.Slim PLA-ZP50EA Service Manual

5

NOISE CRITERION CURVES

PLA-ZP35EA.UK
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PLA-ZP71EA.UK
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
OCH625
NOTCH SPL(dB) LINE
High 31
Medium1 29
Medium2 28
Low 26
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
NOTCH SPL(dB) LINE
High 36
Medium1 33
Medium2 30
Low 28
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
PLA-ZP50EA.UK
PLA-ZP60EA.UK
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PLA-ZP100EA.UK
90
80
70
60
50
40
30
20 APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
12
NOTCH SPL(dB) LINE
High 32
Medium1 31
Medium2 29
Low 27
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
NOTCH SPL(dB) LINE
High 40
Medium1 37
Medium2 34
Low 31
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000