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Sound & Vibration Level Meter and Analyser [SVAN 977A]
The SVAN 977A is a Class 1 Sound and Vibration meter designed for occupational and environmental measurement applications. The SVAN 977A is a successor of SVAN 977 offering bigger memory 16 GB and the Bluetooth® interface as a software option that can be enabled at any time. The meter provides broad-band results such as Leq, Max, Min and Peak with all standard weighting filters together with an incredible time-history logging feature with two adjustable logging steps.
One unique feature of the SVAN 977A is ultrasound measurement band up to 40 kHz. The ultrasound band is normally considered as the frequency range above 20 kHz. Ultrasound is used in a number of industrial processes such as cleaning, drilling or welding as well as hospitals for medical procedures.
The built-in Bluetooth® interface together with smart-phone application, SvanMobile, extends measurement capabilities with all the features offered by smartphones including text/voice comments, photo, video, GPS position etc.
With the option of time signal recording SVAN 977A can record the raw signal samples with defined frequency up to 48 kHz. Analysis of the raw signal is used whenever frequency analysis is not sufficient. Post-processing of high quality wave files (48 kHz, 24 bit) such as calculation of tonality is available in SvanPC++ program. Time signal is recorded in a wave format which means that it can be played back in the PC software and used for noise source recognition (audio recording).
Specifications
| Standards | Class 1: IEC 61672-1:2013 |
| Number of Profiles | 3 |
| Weighting Filters | A, B, C, Z |
| Time constants | Slow, Fast, Impulse |
| Linear Operating Range | 25 dBA RMS - 140 dBA Peak (in accordance to IEC 61672) |
| Total Dynamic Measurement Range | 15 dBA RMS - 140 dBA Peak (typical from noise floor to the maximum level) |
| Dynamic Range | >110 dB |
| Frequency Range | 10 Hz - 20 kHz with ACO 7052E microphone or 10 Hz - 40 kHz with optional microphone, e.g MK 202E |
| Meter Mode Results | SPL, Leq, SEL, Lden, Ltm3, Ltm5, LMax, LMin, LPeak, “sliding Leq” up to 60 minutes Simultaneous measurement in three profiles with independent set of filters and detectors |
| Statistics | Ln (L1-L99), complete histogram in meter mode, linear of with detector (exponential) Ln (L1-L99) statistics in 1/1 or 1/3 octaves (if option is active) |
| Data Logger | logging of summary results with step from 1s logging of time history with step from 2ms |
| Sound Analyser | |
| 1/1 Octave Analysis (option) | Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 31.5 Hz to 16 kHz (audio band) with selectable weighting filter and detector or Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 1 Hz to 31.5 kHz (ultrasound band) with linear detector |
| 1/3 Octave Analysis (option) | Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 20 Hz to 20 kHz (audio band) with selectable weighting filter and detector or Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 0.8 Hz to 40 kHz (ultrasound band) with linear detector |
| Vibration Level Meter and Analyser | |
| Standards | ISO 10816-1 |
| Number of Profiles | 3 |
| Weighting Filters | Acceleration: HP1, HP3, HP10; Velocity: Vel1, Vel3, Vel10, Displacement: Dil1, Dil3, Dil10 Machine filter: VelMF (ISO 10816-1) |
| Measurement Range | 0.01 ms-2 RMS - 500 ms-2 Peak (with SV 80) |
| Frequency Range | 1 Hz - 5 kHz (with SV 80 and HP or HP1 filter) |
| Vibration Analyser | |
| 1/1 Octave Analysis (included) | Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 1 Hz to 16 kHz (full band) with selectable weighting filter and detector or Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 1 Hz to 31.5 kHz (ultra-band) with linear detector |
| 1/3 Octave Analysis (option) | Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 0.8 Hz to 20 kHz (full band) with selectable weighting filter and detector or Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 0.8 Hz to 40 kHz (ultra-band) with linear detector |
| Memory | MicroSD card 8 GB (removable & upgradeable) |
| Display | Colour 320 x 240 pixels OLED type |
| Power supply | Four AAA alkaline or rechargeable NiMH batteries (not included) USB interface 500 mA HUB External power supply 6 V/500 mA DC - 15 V/250 mA DC SA 17A external battery pack (option) |
| Dimensions | 340 mm x 79 x 39 mm (including microphone and preamplifier) |
| Weight | Approx. 0.6 kg with batteries |