Samsung AC MN KH/EU Series, Технический справочник

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7. Sound Data
60
Wind-Free 4Way Cassette
Sound Pressure level
Unit: dB(A)
1.5m
Microphone
Model High MID LOW
AC120NN4DKH/EU 45 40 35
AC140NN4DKH/EU 45 41 37
• NR Curve
5) AC120NN4DKH/EU 6) AC140NN4DKH/EU
NR 65
NR 60
NR 55
NR 50
NR 45
NR 40
NR 35
NR 30
NR 25
NR 20
NR 15
High
Low
0 0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
63 125 250 500 1000 2000 4000 8000
So
un
d
Pr
es
su
re
L
ev
el
(d
B)
Octave Band Center Frequency(Hz)
NR 65
NR 60
NR 55
NR 50
NR 45
NR 40
NR 35
NR 30
NR 25
NR 20
NR 15
High
Low
0 0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
63 125 250 500 1000 2000 4000 8000
So
un
d
Pr
es
su
re
L
ev
el
(d
B)
Octave Band Center Frequency(Hz)
NOTE
• Specifications may be subject to change without prior notice.
- Sound pressure level is obtained in an anechoic room.
- Sound pressure level is a relative value, depending on the distance and acoustic environment.
- Sound pressure level may differ depending on operation condition.
- dBA = A weighted sound pressure level
- Reference acoustic pressure 0 dB = 20μPa