Technibel GRFP 485 R - Page 67

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MO DE L
:
SPAFP255R
S OUND LE VE L : 39 dB (A)
LOW
HIG H
33 dB (A)
37 dB (A)
C ONDITION
:
MO DE L
: SPAFP485R
S OUND LE VE L : S TR ONG 44 dB (A)
LOW
HIG H
37 dB(A)
41 dB(A)
C ONDITION :
MO DE L
: SPAFP365R
S OUND LE VE L : 42 dB (A)
LOW
HIG H
35 dB (A)
40 dB (A)
C ONDITION
:
NC -20
NC -30
NC -40
NC -50
400063 125 250 800020001000500
60
50
40
30
20
10
NC -20
NC -30
NC -40
NC -50
400063 125 250 800020001000500
60
50
40
30
20
10
NC -20
NC -30
NC -40
NC -50
400063 125 250 800020001000500
60
50
40
30
20
10
S trong
Weak
B oth 50Hz and 60Hz
S TR ONG
S TR ONG
F requency at center of sound press ure band (Hz)F requency at center of sound press ure band (Hz)
F requency at center of sound press ure band (Hz)
Overall
S ound press ure level (dB )
(0dB = 0.0002 bar)
Approximate
minimum audible
limit for
continuous noise
Overall
S ound press ure level (dB )
(0dB = 0.0002 bar)
Approximate
minimum audible
limit for
continuous noise
Overall
S ound press ure level (dB )
(0dB = 0.0002 bar)
Approximate
minimum audible
limit for
continuous noise
1 m from front of outlet at height of 1.5 m1 m from front of outlet at height of 1.5 m
1 m from front of outlet at height of 1.5 m
1-8. Noise Criterion Curves
Ceiling-Mounted Type