Nc Curves - Mitsubishi Electric Lossnay LGH-100RX3-CAN Technical Manual

5. NC Curves

LGH-50RX type
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
40
high
35
High
30
Low
25
20
15
10
62.5 125 250 500 1000 2000 4000 8000
Overall
Octave band frequency near center (Hz)
LGH-100RX type
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
25
20
15
10
62.5 125 250 500 1000 2000 4000 8000
Overall
Octave band frequency near center (Hz)
LGH-200RX type
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
50
high
45
High
40
Low
35
30
25
20
15
10
62.5 125 250 500 1000 2000 4000 8000
Overall
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
1.5 m below
Measurement point
NC-70
NC-60
NC-50
NC-40
NC-30
NC-10
1.5 m below
Measurement point
NC-70
NC-60
NC-50
NC-40
NC-30
NC-10
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
NC-70
70
65
NC-60
60
55
NC-50
50
45
Extra
NC-40
high
40
High
35
NC-30
30 Low
25
20
15
NC-10
10
62.5 125 250 500 1000 2000 4000 8000
Overall
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
NC-70
70
65
NC-60
60
55
NC-50
50
Extra
high
45
NC-40
High
40
Low
35
NC-30
30
25
NC-20
20
15
NC-10
10
62.5 125 250 500 1000 2000 4000 8000
Overall
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
NC-70
70
65
NC-60
60
55
Extra NC-50
50
high
High
45
NC-40
40 Low
35
30
25
20
15
NC-10
10
62.5 125 250 500 1000 2000 4000 8000
Overall
Octave band frequency near center (Hz)
Characteristics
1.5 m below
Measurement point
1.5 m below
Measurement point
1.5 m below
Measurement point
NC-30
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