Mitsubishi Electric Mr.Slim PLA-A24EA7 Service Manual page 14

PLA-A36EA7
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
OCH640C
NOTCH SPL(dB) LINE
High 44
Medium1 41
Medium2 37
Low 32
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
CEILING
5 ft
MICROPHONE
PLA-A42EA7
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
MAIN UNIT
14
NOTCH SPL(dB) LINE
High 45
Medium1 42
Medium2 38
Low 34
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000