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Svantek 977A Sound & Vibration Analyzer

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Svantek 977A Sound & Vibration Analyzer

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  詳情:

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 8 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).

The SVAN 977A kit consists of SVAN   977A Class 1 sound & vibration level meter with a detachable preamplifier SV 12L and high quality omni-directional SV  7052E microphone, compliant to IEC61094-4. The list of accessories includes: SA 143 carrying case, SA  22 windscreen, 8 GB microSD card, four AA batteries, USB cable, and CD with user manual. Each SVAN     977A has its factory calibration certificate and 36 months warranty card.

With an optional microphone and 1/3 octave or FFT analysis SVAN    977A provides analysis of the ultrasounds up to 40 kHz. The ultrasound band is normally considered as the frequency range above 20 kHz. Limits of permissible ultrasound levels are usually expressed in terms of Leq and Max values specified in 1/3 octave bands for 20 kHz, 25 kHz, 31.5 kHz and 40 kHz.

StandardsClass 1: IEC 61672-1:2013
Number of Profiles3
Weighting FiltersA, B, C, Z
Time constantsSlow, Fast, Impulse
RMS DetectorDigital True RMS detector with Peak detection, resolution 0.1 dB 
MicrophoneACO 7052E, 35 mV/Pa, prepolarised 1/2" condenser microphone
CalibrationAutomatic calibration start at 114dB/1kHz
PreamplifierSV 12L IEPE type
Linear Operating Range25 dBA RMS ÷ 140 dBA Peak (in accordance to IEC 61672)
Total Dynamic Measurement Range15 dBA RMS ÷ 140 dBA Peak (typical from noise floor to the maximum level)
Internal Noise Level less than 15 dBA RMS
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 ResultsSPL, 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

Audio Recording (option)Audio events recording during measurement, trigger or continuous mode, 12 / 24 / 48 kHz sampling rate, 16 or 24 bit, wav format
Wave Recording (option)Time domain signal recording during measurement 12 / 24 / 48 kHz sampling rate, 16 or 24 bit, wav format

Sound Analyser

1/1 Octave Analysis (included)

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

 FFT Analysis (option)

400 or 800 or 1600 lines in selectable band from 78 Hz to 20 kHz with selectable weighting filter, selectable averaging: linear or exponential, and selectable window or

400 or 800 or 1600 lines in ultrasound band from 25 Hz to 40 kHz with selectable averaging: linear or exponential, and selectable window

RT 60 (option)

Reverberation time analysis in 1/1 octaves, selectable method: decay or impulse, or

Reverberation time analysis in 1/3 octaves, selectable method: decay or impulse

Vibration Level Meter and Analyser

StandardsISO 10816-1
Number of Profiles3
Weighting Filters

Acceleration: HP1, HP3, HP10; Velocity: Vel1, Vel3, Vel10, Displacement: Dil1, Dil3, Dil10

Machine filter: VelMF (ISO 10816-1)

RMS DetectorDigital True RMS detector with Peak detection, resolution 0.1 dB
Time constants: from 100 ms to 10 s
Accelerometer (option)SV 80 IEPE, single axis, sensitivity 10 mV/(ms-2) ~ 100 mV/g
Measurement Range0.01 ms-2 RMS ÷ 500 ms-2 Peak (with SV 80)
Frequency Range1 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

 FFT Analysis (option)

400 or 800 or 1600 lines in selectable band from 78 Hz to 40 kHz with HP weighting filter, selectable averaging: linear or exponential, and selectable window

RPM (option)Rotation measurement option without Laser Tachometer (option), measurement of RPM, RPS, RMAX, RMIN

General information

InputTNC (IEPE type)
MemoryMicroSD card 8 GB (removable & upgradeable)
DisplayColour 320 x 240 pixels, OLED type
Keyboard9 push buttons
Communication InterfacesUSB 2.0 client
Bluetooth® (option)
RS 232 (with SV 55 option)
External I/O - AC output (1 V Peak) or Digital Input/Output (Trigger – Pulse)
 Power supplyFour AA 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)
Environmental ConditionsTemperature from -10 oC to 50 oC
Humidity up to 90% RH, non-condensed
Dimensions340 mm x 79 x 39 mm (including microphone and preamplifier)
Weight Approx. 0.6 kg with batteries

 

 


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