Svantek SV 977D - Page 92

92
SV 977D User Manual
Available bands of the vibration analysis are
as follows:
• 1/1 Octave:
- Full (1-16k) - 15 filters with centre
frequencies from 1 Hz to 16 kHz
=>
- Ultra (1-31.5k) - 16 filters with centre
frequencies from 1 Hz to 31.5 kHz
=>
• 1/3 Octave:
- Full (0.8-20k) - 45 filters with centre
frequencies from 0.8 Hz to 20 kHz
=>
- Ultra (0.8-40k) - 48 filters with centre
frequencies from 0.8 Hz to 40 kHz
=>
Weighting filter
Following pre-weighting filters are available for the 1/1 Octave and 1/3 Octave analysis.
For the analysis of sound signals with the Audio and Full bands:
• Z – class 1 according to IEC 61672-1:2013,
• A – class 1 according to IEC 651 and IEC 61672-1:2013,
• C – class 1 according to IEC 651 and IEC 61672-1:2013,
• B – class 1 according to IEC 651,
• U – class 1 according to IEC 61012:1990,
• AU – class 1 according to IEC 61012:1990,
• HP – high-pass filter.
For the analysis of vibration signals with the Full band:
• HP – high-pass filter.
For the analysis of sound and vibration signals with the Ultra band:
• HPE – ultra band filter.
The filter characteristics are given in Appendix C.