Sampling frequency 48 kHz (internal only)
Analogue to digital converter 4 x 20 bit
Reference range High
Input attenuator accuracy 0.1 dB (for f = 1 kHz and T = +23°C)
Internal oscillator accuracy 0.01 % (for f = 1 kHz and T = +23°C)
Crosstalk between channels < 80 dB @ 1 kHz
C.3.2 Specification of SVAN 958A as 1/1, 1/3 octave and FFT analyser in the standard configuration
for vibration inputs
SVAN 958A performs the 1/1, 1/3 and FFT analysis for the VLM function in the configuration and with the
parameters presented in Chapter C.2.
Note: Simultaneously to the frequency analysis, SVAN 958A operates as a Sound Level Meter -
see Chapter C.2 for specification.
Configuration of the complete analyser
SV 958A sound & vibration level meter and analyser
SV 48C four-channeladapter Voltage to IEPE converter with common
voltage input (5.1 kOmh resistance in each IEPE channel)
Normal operating mode
SV 958A in configuration with the SV 48C adapter connected with the dedicated cables (SC84 Lemo/Lemo
and SC85 TNC/TNC) with following settings: High or Low measurement range (path: <Menu> / Channel Setup
/ Channel x – see Chapter
4.2).
Signal input
● TNC type input throughout the SV 48C adapter
● Maximum input voltage: SV 958A meets the requirements IEC 348 for the 2
nd
class device. The input
voltage shall not exceed the limits between 0 V and +28 V
● Resistance: 5.1 kOmh
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