OSTBERG SAU 125 A, Directions For Use Manual

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17
S O U N D D A T A with G4-filter
The sound data have been compiled by means of sound
measurements methods as follows:
Pressure and drop: SS-ISO 5801.
Determination of acoustic sound level in duct:
SS-EN ISO 5136.
Determination of acoustic sound level in reverberation
room: SS-EN ISO 3741. D E S I G N A T I O N S
LwATot
: Total A-weighted sound power level dB(A)
(ref 10 -12 W)
=
the sum of the sound power level in the
octave ranges.
LwA
: A-weighted sound power level in octave range
dB(A)(ref 10 -12 W).
LpA
: A-weighted sound pressure level in dB(A) accor-
ding to normed A-weightening correction and relating
to an effective absorption area of 20 m
2
with half sphe-
rical translation at a distance of 3 metres.
SAU 125 A , 0,027 m 3 /s LpATot LwATot 63 125 250 500 1k 2k 4k 8k
Environment 38 45 28 33 38 41 36 33 30 32
Inlet 55 47 52 50 42 38 36 32 31
Outlet 59 49 54 50 51 53 48 42 36
SAU 125 C, 0,063 m
3
/s LpATot LwATot 63 125 250 500 1k 2k 4k 8k
Environment 42 49 28 38 44 45 39 36 32 32
Inlet 60 50 56 56 48 43 42 40 30
Outlet 65 52 60 56 56 58 57 49 45
SAU 200 B1/B3 , 0,095 m
3
/s LpATot LwATot 63 125 250 500 1k 2k 4k 8k
Environment 43 50 46 41 44 46 41 38 34 32
Inlet 62 45 53 59 58 49 44 40 27
Outlet 69 51 55 62 66 63 58 51 39
SAU 200 C3, 0,102 m 3 /s LpATot LwATot 63 125 250 500 1k 2k 4k 8k
Environment 46 53 40 41 47 49 44 41 37 33
Inlet 64 50 57 60 60 50 46 44 33
Outlet 72 54 59 64 68 66 61 54 46
SAU 250 E, 0,163 m 3 /s LpATot LwATot 63 125 250 500 1k 2k 4k 8k
Environment 43 50 38 40 45 48 35 31 30 28
Inlet 58 50 51 53 54 45 44 42 35
Outlet 74 54 56 62 73 62 64 62 52
All above sound data are measured with G4-filter (highest pressure/flow).
Filter only reduces pressure -> same sound data irrespective of filter at the same flow.