13
PCFY-P40VKM-E
PCFY-P40VKM-ER1
External static pressure : 0Pa
Power source : 220,230,240V, 50Hz / 220V, 60Hz
PCFY-P63VKM-E
PCFY-P63VKM-ER1
External static pressure : 0Pa
Power source : 220,230,240V, 50Hz / 220V, 60Hz
PCFY-P100VKM-E
PCFY-P100VKM-ER1
External static pressure : 0Pa
Power source : 220,230,240V, 50Hz / 220V, 60Hz
PCFY-P125VKM-E
PCFY-P125VKM-ER1
External static pressure : 0Pa
Power source : 220,230,240V, 50Hz / 220V, 60Hz
High
Low
Middle1
Middle2
High
Low
Middle1
Middle2
High
Low
Middle1
Middle2
High
Low
Middle1
Middle2
Octave band pressure level (dB) 0dB=20
μPa
Octave band pressure level (dB) 0dB=20
μPa
Octave band pressure level (dB) 0dB=20
μPa
Octave band center frequencies (Hz)
Octave band pressure level (dB) 0dB=20
μPa
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
Approximate minimum
audible limit on
continuous noise
NC-40
NC-20
NC-30
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)
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
Approximate minimum
audible limit on
continuous noise
NC-40
NC-20
NC-30
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
4-4. NC CURVES
OCH449A