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Nc Curves - Mitsubishi Electric Lossnay series Technical Manual

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CHAPTER 4
Characteristics

5. NC Curves

LGH-F300RX
-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
50
45
Extra
high
40
High
35
Low
30
25
Extra
20
Low
15
10
Overall 62.5
125
250
500
Octave band frequency near center (Hz)
LGH-F470RX
-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
50
Extra
45
high
High
40
Low
35
30
Extra
25
Low
20
15
10
Overall 62.5
125
250
500
Octave band frequency near center (Hz)
LGH-F600RX
-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
50
45
Extra
high
40
High
35
Low
30
Extra
25
Low
20
15
10
Overall 62.5
125
250
500
Octave band frequency near center (Hz)
U-48
1.5 m below
Measurement
point
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
NC-10
1K
2K
4K
8K
1.5 m below
Measurement
point
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
NC-10
1K
2K
4K
8K
1.5 m below
Measurement
point
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
NC-10
1K
2K
4K
8K
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
55
50
Extra
45
high
High
40
Low
35
30
25
Extra
Low
20
NC-20
15
NC-10
10
Overall 62.5
125
250
500
1K
Octave band frequency near center (Hz)
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
55
50
Extra
high
45
High
40
Low
35
30
Extra
25
Low
NC-20
20
15
NC-10
10
Overall 62.5
125
250
500
1K
Octave band frequency near center (Hz)
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
55
50
Extra
45
high
High
40
Low
35
30
Extra
Low
25
NC-20
20
15
NC-10
10
Overall 62.5
125
250
500
1K
Octave band frequency near center (Hz)
1.5 m below
Measurement
point
NC-70
NC-60
NC-50
NC-40
NC-30
2K
4K
8K
1.5 m below
Measurement
point
NC-70
NC-60
NC-50
NC-40
NC-30
2K
4K
8K
1.5 m below
Measurement
point
NC-70
NC-60
NC-50
NC-40
NC-30
2K
4K
8K

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