Mitsubishi Electric CITY MULTI PKFY Series Technical & Service Manual page 15

PKFY-WL32VLM-E.TH
90
80
70
60
50
40
30
20
Approximate minimum
audible limit on
continuous noise
10
63 125 250 500 1000
BAND CENTER FREQUENCIES, Hz
OCH711
SPL(dB)
FAN LINE
High 41
Medium1 38
34
Medium2
Low 29
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
2000 4000 8000
15 15
PKFY-WL40VLM-E.TH
90
80
70
60
50
40
30
20
Approximate minimum
audible limit on
continuous noise
10
63 125 250 500 1000
BAND CENTER FREQUENCIES, Hz
SPL(dB)
FAN LINE
High 45
Medium1 41
36
Medium2
Low 30
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
2000 4000 8000