Acson RCM 50 DR - Page 17

0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20 Pa)
M easured in anechoic ro om at 1m in fro nt o f the unit and 0.8m belo w the air discharge o pening
NC-40
NC-35
NC-30
NC-25
NC-20
NC-45
NC-50
Hi g h f an
Medium fan
Lo w f an
RCM20D/DR NC Curves
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20 Pa)
M easured in anechoic ro om at 1m in fro nt o f the unit and 0.8m belo w the air discharge o pening
NC-40
NC-35
NC-30
NC-25
NC-20
NC-45
NC-50
Hi g h f an
Lo w f an
Medium fan
RCM25D/DR NC Curves
16