Mitsubishi Electric PL12AK User Manual page 15

PL24AK
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250 500
BAND CENTER FREQUENCIES, Hz
PL36,42AK
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250 500
BAND CENTER FREQUENCIES, Hz
PL30AK
NOTCH SPL(dB) LINE
Hi 41
Lo 33
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1000 2000 4000 8000
NOTCH SPL(dB) LINE
Hi 45
Lo
37
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1000 2000 4000 8000
OC246-15
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250 500 1000
BAND CENTER FREQUENCIES, Hz
CEILING
5ft
MICROPHONE
Ambient temperature 80˚F
Test conditions are based on JIS Z8731
NOTCH SPL(dB) LINE
Hi 43
Lo
35
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
2000 4000 8000
UNIT