Mitsubishi Electric Mr.Slim PLH-P3AAH Technical & Service Manual page 42

6. NOISE CRITERION CURVES
PLH-P3AAH.UK
PLH-P3AAH .UK
1
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PLH-P5AAH.UK
PLH-P5AAH .UK
1
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
CEILING
NOTCH SPL(dB) LINE
Hi 34
Mi1 32
Mi2 30
Lo 28
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
NOTCH SPL(dB) LINE
Hi 43
Mi1 41
Mi2 38
Lo 35
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
UNIT
1.5m
MICROPHONE
PLH-P4AAH.UK
PLH-P4AAH .UK
1
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250 500
BAND CENTER FREQUENCIES, Hz
PLH-P6AAH.UK
PLH-P6AAH .UK
1
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250 500
BAND CENTER FREQUENCIES, Hz
Ambient temperature 27:
Test conditions are based on JIS Z8731
42
NOTCH SPL(dB) LINE
Hi 41
Mi1 39
Mi2 36
Lo 33
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1000 2000 4000 8000
NOTCH SPL(dB) LINE
Hi 45
Mi1 43
Mi2 40
Lo 37
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1000 2000 4000 8000