Sanyo SPW-XR253GH56 Technical Data & Service Manual page 96

1-8 Noise Criterion Curves
Ceiling Mounted Type
MODEL : SPW-TR253GH56
SOUND LEVEL : HIGH 39 dB(A), NC 34
LOW 34 dB(A), NC 26
CONDITION : Distance 1 m, Under the unit 1 m
SOURCE : 220 - 230 - 240 V, 1 Phase, 50 Hz
60
50
40
30
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
MODEL : SPW-TR483GH56
SOUND LEVEL : HIGH 44 dB(A), NC 38
LOW 37 dB(A), NC 31
CONDITION : Distance 1 m, Under the unit 1 m
SOURCE : 220 - 230 - 240 V, 1 Phase, 50 Hz
60
50
40
30
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
1221_X_I
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
1223_X_I
MODEL : SPW-TR363GH56
SOUND LEVEL : HIGH 42 dB(A), NC 36
LOW
CONDITION : Distance 1 m, Under the unit 1 m
SOURCE : 220 - 230 - 240 V, 1 Phase, 50 Hz
60
50
40
30
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
NOISE
10
63 125
BAND CENTER FREQUENCIES, Hz
I - 91
1. Specifications
35 dB(A), NC 28
NC-50
NC-40
NC-30
NC-20
250 500 1000 2000 4000 8000
SM830080
1
1222_X_I
2
3
4
5