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Model
125Hz
ART55A/AR
A(4)RT60A/AR
A(4)RT80A/AR
A(4)RT100A/AR
A(4)RT120A/AR
A(4)RT150A/AR
A(4)RT200A/AR
A(4)RT250A/AR
A(4)RT300A/AR
A(4)RT360A/AR
A(4)RT420A/AR
Note:
1. ART55A/AR, A(4)RT80A/AR, A(4)RT100A/AR, A(4)RT150A/AR and A(4)RT200A/AR
- Microphone position: 1 m in front of the unit and 1 m above the floor.
2. A(4)RT60A/AR, A(4)RT120A/AR, A(4)RT250A/AR, A(4)RT300A/AR, A(4)RT360A/AR, and A(4)RT420A/AR
- Microphone position: 1 m from the service panel and 1 m height from the floor level.
80
70
60
50
40
30
20
10
125
4. SOUND DATA
1/1 Octave Sound Pressure Level (dB, ref 20 µPa)
250Hz
500Hz
73
72
65
67
61
59
68
65
64
69
67
64
68
64
62
74
68
68
74
69
67
76
72
70
77
72
71
67
74
74
72
76
76
ART55A/AR NC CURVES
250
500
Octave-band frequency (Hz)
1kHz
2kHz
4kHz
62
58
52
60
55
49
62
54
49
60
56
51
65
60
53
67
60
53
66
60
52
71
65
55
72
65
55
75
76
69
75
75
69
* THE DATA DOES NOT APPLY TO INDOOR NOISE CRITERION.
1000
2000
43
Overall
Noise
8kHz
(dBA)
Criteria
44
68
42
63
39
65
42
66
45
68
44
70
43
70
46
74
70*
46
74
71*
60
80
> 70*
58
80
> 70*
NC70
NC65
NC60
NC55
NC50
NC45
NC40
NC35
NC30
NC25
NC20
4000
8000
66
59
61
58
64
66
65
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