6
PCFY-P15NKMU-E
External static pressure : 0Pa
Power source :
208V, 230V, 60Hz
PCFY-P24NKMU-E
External static pressure : 0Pa
Power source :
208V, 230V, 60Hz
PCFY-P30NKMU-E
External static pressure : 0Pa
Power source :
208V, 230V, 60Hz
PCFY-P36NKMU-E
External static pressure : 0Pa
Power source :
208V, 230V, 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
NC-40
NC-20
NC-30
Octave band center frequencies (Hz)
Approximate minimum
audible limit on
continuous noise
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
Approximate minimum
audible limit on
continuous noise
NC-40
NC-20
NC-30
Octave band center frequencies (Hz)
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
A
pproximate minimum
audible limit on
continuous noise
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20μPa
Octave band pressure level (dB) 0dB=20μPa
Octave band center frequencies (Hz)
Octave band pressure level (dB) 0dB=20μPa
Octave band center frequencies (Hz)
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
A
pproximate minimum
audible limit on
continuous noise
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20μPa
High
Low
Middle1
Middle2
High
Low
Middle1
Middle2
High
Low
Middle1
Middle2
High
Low
Middle1
Middle2
2-4. NC CURVES