7
5
NOISE CRITERION CURVES
* Measured in anechoic room.
PKA-RP100KAL,TH
41 - 45 - 49
PKA-RP60,71KAL,TH
39 - 42 - 45
Sound level dB (A)
Sound level at anechoic room : Low-Middle-High
1.0m
1.0m
Measurement location
5-1. SOUND LEVELS
5-2. NOISE CRITERION CURVES
PKA-RP60,71KAL
External static pressure : 0Pa
Power source : 220, 230, 240V, 50Hz
PKA-RP100KAL
External static pressure : 0Pa
Power source : 220, 230, 240V, 50Hz
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
pr
essur
e
le
vel
(dB)
0dB=
20
μ
Pa
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Low
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
pr
essur
e
level
(dB)
0dB=
20
μ
Pa
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Low
Approximate minimum
audible limit on
continuous noise
