Operation Noise (Sound Pressure); Noise Level Curve; Sound Level Check Point - Fujitsu ARXG22KMLA Design & Technical Manual

6. Operation noise (sound pressure)

6-1. Noise level curve

¢ Model: ARXG22KMLA
 Cooling
80
70
60
50
40
30
20
QUIET
10
0
63 125 250
Octave band center frequency, Hz

6-2. Sound level check point

Microphone
Front view
6-1. Noise level curve
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
HIGH
NC-30
NC-25
NC-20
NC-15
500 1,000 2,000 4,000 8,000
Measuring duct
(Set the static pressure
as rating in this area.)
 Heating
80
70
60
50
40
30
20
QUIET
10
0
63 125 250
Octave band center frequency, Hz
2 m
Air
- 12 -
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
HIGH
NC-30
NC-25
NC-20
NC-15
500 1,000 2,000 4,000
1 m
Product
Measuring duct
Microphone
Side view
6. Operation noise (sound pressure)
8,000