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PLFY
5. SOUND LEVELS
YKB/YLM 2nd
MEE15K022
5. SOUND LEVELS
5-1. Sound levels
5-2. NC curves
PLFY-P-VLMD-E
Sound level at anechoic room : Low-Mid-High
Sound level dB (A)
220,240V
230V
PLFY-P20VLMD-E
27-30-33
28-31-34
PLFY-P25VLMD-E
PLFY-P32VLMD-E
PLFY-P40VLMD-E
29-33-36
30-34-37
PLFY-P50VLMD-E
31-34-37
32-35-38
PLFY-P63VLMD-E
32-37-39
33-38-40
PLFY-P80VLMD-E
33-36-39
34-37-40
PLFY-P100VLMD-E
36-39-42
37-41-43
PLFY-P125VLMD-E
40-42-44-46
* Measured in anechoic room
1.5m
Measurement location
PLFY-P20,25VLMD-E
External static pressure : 0Pa
Power source : 220,240V, 50/60Hz
NC60
NC50
NC40
NC30
NC20
70
60
50
40
30
20
63
125
250
500
1000
2000
4000
8000
10
0
OCT
A
VE BAND PRESSURE LEVEL
(dB) 0dB = 20μPa
OCTAVE BAND CENTER FREQUENCIES (Hz)
High
Middle
Low
Approximate minimum
audible limit on
continuous noise
PLFY-P20,25VLMD-E
External static pressure : 0Pa
Power source : 230V
, 50/60Hz
Approximate minimum
Approximate minimum
NC60
NC50
NC40
NC30
NC20
70
60
50
40
30
20
63
125
250
500
1000
2000
4000
8000
10
0
OCT
A
VE BAND PRESSURE LEVEL
(dB) 0dB = 20μPa
OCTAVE BAND CENTER FREQUENCIES (Hz)
High
Middle
Low
Approximate minimum
audible limit on
continuous noise
PLFY-P32VLMD-E
External static pressure : 0Pa
Power source : 220,240V
, 50/60Hz
NC60
NC50
NC40
NC30
NC20
70
60
50
40
30
20
63
125
250
500
1000
2000
4000
8000
10
0
OCT
A
VE BAND PRESSURE LEVEL
(dB) 0dB = 20μPa
OCTAVE BAND CENTER FREQUENCIES (Hz)
High
Middle
Low
Approximate minimum
audible limit on
continuous noise
PLFY-P32VLMD-E
External static pressure : 0Pa
Power source : 230V, 50/60Hz
NC60
NC50
NC40
NC30
NC20
70
60
50
40
30
20
63
125
250
500
1000
2000
4000
8000
10
0
OCT
A
VE BAND PRESSURE LEVEL
(dB) 0dB = 20μPa
OCTAVE BAND CENTER FREQUENCIES (Hz)
High
Middle
Low
Approximate minimum
audible limit on
continuous noise
PLFY-P40VLMD-E
External static pressure : 0Pa
Power source : 220,240V, 50/60Hz
NC60
NC50
NC40
NC30
NC20
70
60
50
40
30
20
63
125
250
500
1000
2000
4000
8000
10
0
OCT
A
VE BAND PRESSURE LEVEL
(dB) 0dB = 20μPa
OCTAVE BAND CENTER FREQUENCIES (Hz)
High
Middle
Low
Approximate minimum
audible limit on
continuous noise
PLFY-P40VLMD-E
External static pressure : 0Pa
Power source : 230V
, 50/60Hz
NC60
NC50
NC40
NC30
NC20
70
60
50
40
30
20
63
125
250
500
1000
2000
4000
8000
10
0
OCT
A
VE BAND PRESSURE LEVEL
(dB) 0dB = 20μPa
OCTAVE BAND CENTER FREQUENCIES (Hz)
High
Middle
Low
Approximate minimum
audible limit on
continuous noise
