Svantek SV 200A, Руководство пользователя

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174 SV 200A User Manual
C.2 S
PECIFICATION OF THE
SV 200A 1/1
AND
1/3 OCTAVE
ANALYSIS
The SV 200A instrument can analyse sound in 1/1 or 1/3 octave bands. Built in filters operate in real
time meeting the international IEC 61260-1:2014 standard.
Note: Simultaneously to the frequency analysis SV 200A operates as Sound Level Meter!
See Chapter C.1 for specification.
Signal input
● SV 200A microphone input throughout ST02 adapter
● Maximum input voltage: the
SV 200A meets the requirements of IEC 348 for the 2nd class device.
The input voltage shall not exceed the limits between -15 V and +15 V.
● Impedance:

10 G

, ≤ 2 pF
Linear Operating Range
Table C.2.1. Linear operating range
Weighting
Linear operating range (with 10 dB margin from noise)
( RMS for the sinusoidal signal at reference conditions @ 1 kHz,
0.0 dB calibration factor)
A
from 18
μV
RMS
to 3.15 V
RMS
B
from 18
μV
RMS
to 3.15 V
RMS
C
from 18
μV
RMS
to 3.15 V
RMS
Z
from 25
μV
RMS
to 3.15 V
RMS
Table C.2.2. Peak for the sinusoidal signal 1 kHz, at reference conditions (@ 114 dB indication)
Peak for the sinusoidal signal 1 kHz , at reference conditions
@ 1 kHz (0.0 dB calibration factor)
Weighting Max Peak value
A
0.707 V
B
0.707 V
C
0.707 V
Z
0.707 V
Measuring frequency range 1.0
Hz ÷ 22.4 kHz with the
Z filter (-3 dB)
Centre Frequency Ranges for 1/1 Octave 31.5 Hz
÷ 16 kHz
Centre Frequency Ranges for 1/3 Octave 20 Hz
÷ 20 kHz
Maximum peak voltage 30 V Peak-Peak (Maximum peak voltage of input
sinusoidal signal, which can be lead to the SLM without
destruction the meter)