Specifications

18
5. Sound Pressure Levels
(1) Standard type
•PFAV-P500VM-E
Power sorce : 3N 380/400/415V 50/60Hz
Note:The measuring point is the 1m from the bottom of the unit.
(1m from the front of the unit.)
32
8000Hz
55
dB(A)
38.5
4000Hz
44
2000Hz
47.5
1000Hz
51
500Hz
58.5
250Hz
63
125Hz
66
32 553645.546.550596368
63Hz
50Hz
60Hz
50Hz, 60Hz
NC Curve
·OCTAVE BAND CENTER FREQUENCIES (Hz)
·Approximate minimum
audible limit on
continuous noise.
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
NC-70
NC-60
NC-50
NC-30
NC-20
NC-40
OCTAVE BAND PRESSURE LEVEL (dB) 0 dB=20µPa
1m
1m
Measurement
location
Power sorce : 3N 380/400/415V 50/60Hz
Note:The measuring point is the 1m from the bottom of the unit.
(1m from the front of the unit.)
38
8000Hz
62
dB(A)
46.5
4000Hz
54
2000Hz
57
1000Hz
57.5
500Hz
60
250Hz
69
125Hz
77.5
33 5941.549535656.56573.5
63Hz
50Hz
60Hz
50Hz, 60Hz
NC Curve
·OCTAVE BAND CENTER FREQUENCIES (Hz)
·Approximate minimum
audible limit on
continuous noise.
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
NC-70
NC-60
NC-50
NC-30
NC-20
NC-40
OCTAVE BAND PRESSURE LEVEL (dB) 0 dB=20µPa
1m
1m
Measurement
location
•PFAV-P250VM-E