
30
MVCU-2009 Sound Data
MCC030C
NC CURVES
MCC040C
NC CURVES
0
10
20
30
40
50
60
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB,ref20μPa)
High Fan
NC-30
NC-35
NC-40
NC-45
Low Fan
Medium Fan
NC-25
NC-20
Super High Fan
0
10
20
30
40
50
60
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB,ref20μPa)
High Fan
NC-30
NC-35
NC-40
NC-45
Low Fan
Medium Fan
NC-25
NC-20
Supe r High Fan
06_Sound Data.indd 3006_Sound Data.indd 30 4/28/2009 11:16:57 AM4/28/2009 11:16:57 AM
Comentarios a estos manuales