Mitsubishi Electric PEAD-RP1.6EA Technical & Service Manual page 36

2)NC curves
PEAD-RP1.6EA
70
60
50
40
30
20
10
Approximate minimum
audible limit on
continuous noise
0
63 125
OCTAVE BAND CENTER FREQUENCIES (Hz)
PEAD-RP2EA
70
60
50
40
30
20
10
Approximate minimum
audible limit on
continuous noise
0
63 125
OCTAVE BAND CENTER FREQUENCIES (Hz)
PEAD-RP2.5EA
70
60
50
40
30
20
10
Approximate minimum
audible limit on
continuous noise
0
63 125
OCTAVE BAND CENTER FREQUENCIES (Hz)
PEAD-RP3EA
70
60
50
40
30
20
10
Approximate minimum
audible limit on
continuous noise
0
63 125
OCTAVE BAND CENTER FREQUENCIES (Hz)
36
(External static
pressure 30Pa)
High
Low
NC60
NC50
NC40
NC30
NC20
250 500 1000 2000 4000 8000
(External static
pressure 30Pa)
High
Low
NC60
NC50
NC40
NC30
NC20
250 500 1000 2000 4000 8000
(External static
pressure 30Pa)
High
Low
NC60
NC50
NC40
NC30
NC20
250 500 1000 2000 4000 8000
(External static
1 pressure 70Pa)
High
Low
NC60
NC50
NC40
NC30
NC20
250 500 1000 2000 4000 8000
(External static
PEAD-RP1.6EA
pressure 70Pa)
70
60
50
40
30
20
10
Approximate minimum
audible limit on
continuous noise
0
63 125 250 500 1000 2000
OCTAVE BAND CENTER FREQUENCIES (Hz)
(External static
PEAD-RP2EA
pressure 70Pa)
70
60
50
40
30
20
10
Approximate minimum
audible limit on
continuous noise
0
63 125 250 500 1000 2000
OCTAVE BAND CENTER FREQUENCIES (Hz)
(External static
PEAD-RP2.5EA
pressure 70Pa)
70
60
50
40
30
20
10
Approximate minimum
audible limit on
continuous noise
0
63 125 250 500 1000 2000
OCTAVE BAND CENTER FREQUENCIES (Hz)
(External static
PEAD-RP3EA
1 pressure 130Pa)
70
60
50
40
30
20
10
Approximate minimum
audible limit on
continuous noise
0
63 125 250 500 1000 2000
OCTAVE BAND CENTER FREQUENCIES (Hz)
High
Low
NC60
NC50
NC40
NC30
NC20
4000 8000
High
Low
NC60
NC50
NC40
NC30
NC20
4000 8000
High
Low
NC60
NC50
NC40
NC30
NC20
4000 8000
High
Low
NC60
NC50
NC40
NC30
NC20
4000 8000