AcSoft
Svantek UK

SV 104IS Intrinsically Safe Noise Dosimeter

The SV 104IS is the intrinsically safe version of the revolutionary personal noise dosimeter, the SV 104. Both instruments offer a new approach to occupational health and safety noise monitoring presenting features such as 1/1 octave band real-time analysis and audio events recording functions which are a new quality in an instrument of this size. All results are clearly displayed on the amazing OLED screen which offers excellent visibility even in full daylight or darkness.

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This personal dosimeter has a robust 1/2″ MEMS microphone enabling easy calibration using most commonly available acoustic calibrators. The new microphone has a large dynamic range of the 90 dB which allows to measure noise from 60 dBA to 140 dBA. The long list of microphone advantages includes also the autocalibration feature and TEDS memory that stores the calibration info in the microphone itself. The auto-calibration means performing the acoustic calibration automatically once the microphone is inserted into the calibrator.

The SV 104IS is a cable-free dosimeter and is typically attached to the user’s shoulder, close to the ear using the mounting clips supplied. The instrument works with Svantek’s health and safety software package, Supervisor, that provides various tools for data analysis and reporting. The docking station supports data transfer to the PC through the infrared interface as well as handles the battery charging. Rechargeable batteries of SV 104IS are able to power the instrument for 50 hours.

SV104IS Technical Specifications

StandardsIEC 61252 ed1.1 (2002); ANSI S1.25-1991 (R2007);
Class 2 IEC 61672-1 ed2.0 (2013)
ATEX: EN 50303, EN 60079-0, EN 60079-11, EN 60079-26, certificate number: FTZU 14 ATEX 0055X
IECEx: IEC 60079-0, IEC 60079-11, IEC 60079-26, certificate number IECEx FTZU 15.0001X
Weighting filtersA, C and Z
Time constantsSlow, Fast, Impulse
Exchange rates2, 3, 4, 5, 6
Measurement resultsRun Time (TIME), Lpeak, Lmax, Lmin, L, DOSE (%), Projected Dose D_8h, Projected Dose PrDOSE, Leq, LAV, LE, SEL8, E, E_8h, LEPd, PSEL, Ltm3, Ltm5, Ln statistics, Peak Threshold Counter (PTC), PTP, Upper Limit Time (ULT), TWA, Projected TWA (PrTWA), Lc-a, OVL
Measurement profiles3
MicrophoneClass 2 microphone, 1/2″  MEMS type
Measurement range60 dBA RMS ÷ 140.1 dBA Peak
Frequency range20 Hz ÷ 10 kHz
Dynamic range90 dB
Data loggingSummary results for the measurement time
Time-history logging of Leq/Max/Min/Peak with 1s logger step
Voice commentsAudio records on demand, created before or after measurement, added to measurement file
Audio recordingShort audio events recording on trigger, 12 kHz sampling rate (option)
1/1 octaveReal-time analysis in octave band filters, Class 1, IEC 61260
9 filters with centre frequencies from 31.5 Hz to 8 kHz (option)

Basic data

Display128 x 64 pixels OLED
Ingress protectionIP 65
Memory64 MB
InterfacesInfrared (docking station necessary)
Keyboard3 push buttons
Power supplyRechargeable cell; operation time > 50 hours1
Environmental conditionsTemperature from -10 oC to 50 oC
Humidity up to 95 % RH, non-condensed
Dimensions 88 x 49.5 x 19.2 mm
Weight117 grams with batteries

 1depends on the dosimeter settings

*Continuous product development and innovation are the policy of our company. Therefore, we reserve the right to change the specifications without prior notice.

https://acsoft.co.uk/wp-content/uploads/2019/03/2016_104is_www.pdf

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SV 104IS Intrinsically Safe Noise Dosimeter

Intrinsically safe with a robust 1/2" MEMS microphone

Our Technical Director, John Shelton, discusses: Do you think we’ll ever see calibratable MEMS type chip mics capable of replacing half inch mics? If not, why not?
Read more: https://bit.ly/3ImI0u4