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Mitsubishi Electric Lossnay series Technical Manual Page 58

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LGH-F1200RX
-E
5
Background noise
: 25 dB or less (A range)
Measurement site
: Anechoic chamber
Operation conditions : Lossnay ventilation
Power supply
: 208 V 60 Hz
90
85
80
75
70
65
60
55
Extra
high
50
High
45
Low
40
35
30
25
20
15
10
Overall 62.5
125
250
500
Octave band frequency near center (Hz)
1.5 m below
Measurement
point
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
NC-10
1K
2K
4K
8K
CHAPTER 4
Background noise
: 25 dB or less (A range)
Measurement site
: Anechoic chamber
Operation conditions : Lossnay ventilation
Power supply
: 230 V 60 Hz
90
85
80
75
70
65
60
Extra
55
high
High
50
45
Low
40
35
30
25
20
15
NC-10
10
Overall 62.5
125
250
500
1K
Octave band frequency near center (Hz)
Characteristics
1.5 m below
Measurement
point
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
2K
4K
8K
U-49

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