SV 102A
Type 1 Dual-channel Acoustic Dosimeter

 

The dual-channel SV 102A is a Type 1 instrument presenting completely new approach to occupational health and safety acoustic monitoring task. This dosimeter can be also used as a dual-channel Type 1 sound level meter and real-time 1/1 or 1/3 octave analyser.

Octave analysis, providing direct data for the design of the ear-protectors, together with Audio Events Recording (AER) function show the new reference standard on acoustic dose measurement field. The binaural dose measurement and octave analysis are simultaneously performed by this compact-size instrument. Three acoustic profiles per channel allow parallel measurements with independently defined filters and RMS detector time constants. Advanced time-history logging in each profile, together with spectra saving and Audio Events Recording provide a complete information about the measured signal. Data is stored in non-volatile 64 MB internal memory and can be easily downloaded to any PC using USB interface and SvanPC+ software.

Dosimeter is offered with one or two dedicated measurement sets: SV 15 preamplifier with an automatic calibration function (TEDS) and prepolarised microphone. Calibration by measurement can be easily performed by direct usage of common acoustic calibrators.

The small and compact SV 15 preamplifier together with special mounting clip and dedicated headband enables an easy attachment of the microphone in extremely short distance tot human ears.

SV 102A is also able to perform the measurement inside human ear - with the usage of SV 25S - smart microphone with an automatic calibration function (TEDS). The SV 102A together with SV 25S are designed for individual real-world test of the earmuffs noise reduction ratio in means of MIRE technique (Microphone-In-Real-Ear)-measurements under headphones or earmuffs. With a special adapter, SV 25S can be also calibrated with commonly available 1/2" acoustic calibrators.

   FEATURES

  • Dual-channel Sound Level Meter conforming to Type 1: IEC 61672
  • Type 1, prepolarised 1/2" microphone
  • Dual channel 1/1 octave analysis
  • Dual channel 1/3 octave analysis
  • Single measurement range
  • Measurement range 45 dBA RMS ÷ 141 dBA Peak
  • MIRE measurement technique with SV 25S
  • Individual evaluation of the HPDs attenuation in real-world
  • Three parallel independent profiles
  • Advanced data logger, up to 12 results per channel logged simultaneously including spectral analysis
  • Audio-events-recording
  • Automatic calibration thanks to the TEDS technology
  • Built-in non-volatile memory up to 64 MB
  • USB 1.1 interface
  • Large LCD with backlight
  • Integration time programmable up to 24 h
  • Power supply by two AA rechargeable or standard batteries
    Operational time > 24 h
  • Extremely compact, light weight (260 grams with batteries) and robust case
    (volume comparable to PDA devices)

Measurements in Real Ear with SV 102A and SV 25S MIRE Microphone

SV 25S smart sensor with TEDS, dedicated for the measurements under headphones or earmuffs using MIRE technique (Microphone-In-Real-Ear). With a special adapter, it can be also calibrated with commonly available acoustic calibrators.
The SV 102 together with SV 25S are designed for individual real-world test of the earmuffs noise reduction ratio.

 

 


  Click to download:  MIRE Microphone SV 25S User Guide  

 

New carrying case for SV 102 and SV 102A

The case has been designed especially for SV 102 and its all accessories.
The size of SA 142 is the same as SA 43 carrying case’s.

SV 102A Technical specifications
DOSIMETER / SLM / ANALYSER
Standards IEC 61252; ANSI S1.25-1991, Type 1 : IEC 61672:2002
Acoustic dosimeter mode Leq, Spl, Peak, SEL, DOSE, D_8h, LAV, SEL8, PSEL, E, E_8h, TWA, “Peaks Counter” and more Measurement simultaneous to the 1/1 octave analysis (option)
SLM Mode Leq, Spl, SEL, LEP,d , Lden, Ltm3, Ltm5, Statistics - Ln (L1-L99), LMax, LMin, LPeak
Simultaneous measurement in three profiles with independent set of filters and detector
Weighting filters A, C and Z
RMS Detector Digital True RMS detector with Peak detection, resolution 0.1 dB
Time Constants: Slow, Fast, Impulse
Microphone
SV 15 preamplifier with integrated cable and 7052, 1/2" prepolarised microphone
SV 25S, Type 2, ceramic microphone, for measurements based on microphone in real ear technique MIRE (option)
SV 15 and SV25S have built in TEDS functionality for the automatic calibration

Measurement Range

45 dBA RMS ÷ 141 dBA Peak
Frequency Range 20 Hz ÷ 20 kHz, sampling rate 48 kHz

Dynamic Range

100 dB
 Data Logger1 Time History logging of RMS / Max / Min / Peak results to internal memory with time step down to 1 second, up to 24 measurement results logged simultaneously
Audio Recorder1 Time domain signal events recorder (option)
Dual channel mode Dual channel measurement mode with second microphone (option)

1/1 octave1

Dual channel 1/1 octave real time analysis and spectra logging, 9 filters with centre frequencies from 31.5 Hz to 16 kHz, Type 1, IEC 61260 (option)
1/3 octave1 Dual channel 1/3 octave real time analysis and spectra logging, 28 filters with centre frequencies from 20 Hz to 20 kHz, Type 1, IEC 61260 (option)
BASIC DATA
Input 2 x Lemo 2 pin
Display LCD 128 x 64 pixels plus icons with backlighting
Memory Up to 64 MB non-volatile flash type
Interfaces USB 1.1 Client,
Extended I/O - AC output (1 V Peak) / Digital Output (Alarm trigger) / Digital Input (Input trigger)
Power supply
Two AA batteries
(alkaline)		 operation time > 20 h
(3 V / 1.6 Ah)2
Two rechargeable batteries
(not included)		 operation time > 24 h
(2.4 V / 2.6 Ah)2
USB interface 150 mA HUB
Environmental Conditions
Temperature from -10oC to 50oC
Humidity up to 90 % RH, non-condensed
Dimensions 95 x 83 x 33 mm (without microphones)
Weight 260 grams with batteries (without microphones)
1function parallel to the acoustic dosimeter mode or meter mode
2in single channel dosimeter mode and backlight off
 

 

SV 102A - Short Guide

SV 102A  Short User Guide

 

Appendixes

Appendix A Remote Control

Appendix B Data File Structures

 

SV 102A - Drivers / Software
Click here to download
SvanPC++ software
USB drivers                                                                     
 

SV 102A - Ordering Hints
 

SV 102A  Ordering Hints