1 - 160
PCFY
5. SOUND LEVELS
YKB/YLM 2nd
MEE15K022
5. SOUND LEVELS
5-1. Sound levels
5-2. NC curves
1m
Measurement
location
1m
*
Measured in anechoic room.
PCFY-P40VKM-E
PCFY-P63VKM-E
PCFY-P100VKM-E
PCFY-P125VKM-E
Sound level at anechoic room : Low-Middle2-Middle1-High
29-32-34-36
31-33-35-37
36-38-41-43
36-39-42-44
Sound level dB (A)
Model
Ceiling suspended
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Middle2
50/60Hz
Low
50/60Hz
50/60Hz
PCFY-P40VKM
External Static Pressure: 0Pa
Power Source: 200V, 50/60Hz
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Middle2
50/60Hz
Low
50/60Hz
50/60Hz
PCFY-P63VKM
External Static Pressure: 0Pa
Power Source: 200V 50/60Hz
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Middle2
50/60Hz
Low
50/60Hz
50/60Hz
PCFY-P100VKM
External Static Pressure: 0Pa
Power Source: 200V 50/60Hz
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Middle2
50/60Hz
Low
50/60Hz
50/60Hz
PCFY-P125VKM
External Static Pressure: 0Pa
Power Source: 200V 50/60Hz
