MEES18K070
H
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9
5. SOUND LEVELS
Hydro unit
5. SOUND LEVELS
5-1. Sound levels
(Measured point)
5-2. NC curves
*Measured in anechoic room.
1m
Measurement location
10
20
30
40
50
60
70
80
90
63
125
250
500
1k
2k
4k
8k
NC-40
NC-30
NC-20
NC-60
NC-70
NC-50
Power Source: 220-240V (50/60Hz)
Octave band central frequency (Hz)
Octave band sound level (dB)
Approximate minimum
audible limit on
continuous noise
CMH-WM250, 350, 500V-A
0000005070.BOOK 9 ページ ２０１８年１１月１５日 木曜日 午後６時４１分
