Operation Manual

41
0
10
20
30
40
50
60
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20µPa)
High Fan
Medium Fan
Low Fan
NC-20
NC-30
NC-45
NC-40
NC-25
NC-35
AWM 15 G/GR , A5WM 15 G/GR
NC CURVES
AWM 20 G/GR , A5WM 20 G/GR
NC CURVES
0
10
20
30
40
50
60
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20 µPa)
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45High Fan
Medium Fan
Low Fan