Svantek SVAN 971, Руководство пользователя

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SVAN 971 User Manual
– Appendixes
196
Linear Operating Ranges with Airport filter
Table C.5.7. Self-generated noise for different weighting filters
Electrical *) Acoustical compensated
Weighting filter
Range
A C Z A C Z
Low < 15 dB < 14 dB < 20 dB < 16 dB < 16 dB < 22 dB
High < 26 dB < 25 dB < 32 dB < 26 dB < 26 dB < 32 dB
*) measured with the ST 02 microphone equivalent impedance 18 pF +/-10%
Table C.5.8.
Linear operating range: “LOW” with Airport filter for the sinusoidal signal and microphone
sensitivity 35 mV/Pa
[dB]
L
AS/F
L
BS/F
L
CS/F
L
ZS/F
L
AeqT
L
BeqT
L
CeqT
L
AE
L
Cpeak
(t
int
= 2 s)
from to from to from to from to from to from to From to from to from to
31,5 Hz
26 80 26 103 26 117 32 120 26 80 26 103 26 117 29 83 50 120
500
Hz
26 116 26 119 26 120 32 120 26 116 26 119 26 120 29 119 50 123
1 kHz 26 120 26 120 26 120 32 120 26 120 26 120 26 120 29 123 50 123
4 kHz
26 121 26 119 26 119 32 120 26 121 26 119 26 119 29 124 50 123
8 kHz
26 119 26 117 26 117 32 120 26 119 26 117 26 117 29 123 50 120
12.5
kHz
26 115 26 114 26 114 32 120 26 115 26 114 26 114 29 118 50 117
Table C.5.9.
Linear operating range: “HIGH” with Airport filter for the sinusoidal signal and microphone
sensitivity 35 mV/Pa
[dB]
L
AS/F
L
BS/F
L
CS/F
L
ZS/F
L
AeqT
L
BeqT
L
CeqT
L
AE
L
Cpeak
(t
int
= 2 s)
from to from to from to from to from to from to from to from to from to
31,5 Hz 36 97 36 120 36 134 42 137 36 97 36 120 36 134 39 100 60 137
500
Hz
36 133 36 136 36 137 42 137 36 133 36 136 36 137 39 136 60 140
1 kHz
36 137 36 137 36 137 42 137 36 137 36 137 36 137 39 140 60 140
4 kHz 36 138 36 136 36 136 42 137 36 138 36 136 36 136 39 141 60 139
8 kHz
36 136 36 134 36 134 42 137 36 136 36 134 36 134 39 139 60 137
12.5
kHz
36 132 36 131 36 131 42 137 36 132 36 131 36 131 39 136 60 134