Mitsubishi Electric PCA-RP125HAQ, Руководство по обслуживанию

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10
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
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB ( 0dB = 0.0002
μ
bar )
BAND CENTER FREQUENCIES, Hz
PCA-RP71HAQ
NOTCH
High
Low
SPL(dB)
38
34
LINE
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
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB ( 0dB = 0.0002
μ
bar )
BAND CENTER FREQUENCIES, Hz
PCA-RP125HAQ
NOTCH
High
Low
SPL(dB)
50
44
LINE
1m
1m
unit
about 1.4m
MICROPHONE
ceiling
NOISE CRITERION CURVES
5