CESVA SC-30, Руководство пользователя, Страница: 41 / 76

SC-30
User’s Manual
39
Frequency
(Hz)
Weighting A
(dB)
Weighting C
(dB)
Tolerance for type 1
(dB)
16 - 56.7 - 8.5
+ 3; -
∞
31.5 - 39.4 - 3.0
±
1.5
63 - 26.2 - 0.8
±
1.5
125 - 16.1 - 0.2
±
1
250 - 8.6 - 0.0
±
1
500 - 3.2 - 0.0
±
1
1,000 0 0
±
1
2,000 + 1.2 - 0.2
±
1
4,000 + 1.0 - 0.8
±
1
8,000 - 1.1 - 3.0 +1.5; -3
16,000 - 6.6 - 8.5
+ 3; -
∞
Frequency weighting Z (zero) is equivalent to 0 dB from 10 Hz to 20 kHz. The
tolerance for type 1 is the one defined by frequency weightings A and C.
5.6 AC output
Frequency weighting: Linear
Sensitivity at 137 dB and 1 kHz (Gain: 0 dB): 7.4 Vrms (max)
Upper limit: 8.1 Vrms (typical)
Output impedance:
100
Ω
Gain
0 or 40 dB
±
0.2 dB
Connector with 1.3 mm central pin Central pin AC signal
5.7 Octave filters
Frequency evaluation system Base 10
Reference attenuation 0 dB
Operative linearity range The same as the measurement
range