Mitsubishi Electric Mr. Slim PLA Series, Service Manual

Page: 18 / 50

19
TCH070A
18
PLA-A36EA7R1.TH PLA-A42EA7R1.TH
NOTCH SPL(dB) LINE
High 44
Medium1 41
Medium2 37
Low 32
NOTCH SPL(dB) LINE
High 45
Medium1 42
Medium2 38
Low 34
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
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
OCT
AVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)
OCT
AVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)
MAIN UNIT
5 ft
MICROPHONE
CEILING
TCH070A.indd 18 TCH070A.indd 18 7/2/2565 16:46:47 7/2/2565 16:46:47