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SV 104 Noise Dosimeter

SV 104 Noise Dosimeter brings incredible functionality into a compact style instrument. The SV 104 instrument is a revolutionary new approach to occupational health and safety noise monitoring offering voice comments and audio events recording functions which are a new concept in an instrument of this size. The measurement data is safely stored in the large 8 GB memory and the amazing OLED screen displays information in both text and graphical form and offers excellent visibility even in full daylight.
This personal dosimeter has a robust 1/2 MEMS microphone enabling easy calibration using most commonly available acoustic calibrators. The SV 104 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 specialist health and safety software package, “Supervisor” and is powered using built-in rechargeable batteries or through the USB interface which also enables easy connection between the SV 104 and a PC.
Never before has a noise dosimeter been so accomplished yet affordable, making your measurements more accurate and reliable than ever before.

FEATURES

  • Small, compact style dosimeter
  • Easy and friendly user interface
  • Shock resistant MEMS microphone
  • Built-in tri-axial accelerometer for vibration shock (knocking) detection
  • High contrast color OLED display
  • Single measurement range
  • Option for octave real-time analysis
  • Option for audio events recording
  • Voice tagging
  • Automatic calibration start
  • Three virtual measurement profiles
  • Operational time > 40 hours
  • USB 2.0 interface
  • Rechargeable battery

Single Channel Personal Sound Exposure Meter (Noise Dosimeter)

Standards IEC 61252; ANSI S1.25-1991; Class 2: IEC 61672:2002
Weighting filters A, C and Z
Time constants Slow, Fast, Impulse
Exchange rates 2, 3, 4, 5, 6
Measurement results Lavg/Leq, SPL, Max, Min, SEL, SEL8, PSEL, LEPd, Dose (%), TWA, E, E_8h, Peak, Run Time, Upper Limit, Time (ULT), L(C-A), Projected Dose (D_8h)
Measurement profiles 3
Microphone Class 2 microphone, 1/2" housing with built-in TEDS functionality for the automatic calibration
Measurement range 55 dBA RMS ÷ 140.1 dBA Peak
Frequency range 30 Hz ÷ 8 kHz
Dynamic range 95 dB
Data logging Summary results for the measurement time
Time-history logging of Leq/Max/Min/Peak with 1s logger step
Voice comments Audio records on demand, created before or after measurement, added to measurement file
Audio recording Audio events recording, trigger and continuous mode, 12 or 24 kHz sampling rate, wav format (option)
1/1 octave Real-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

Display 128 x 64 pixels OLED
Memory 8 GB
Interfaces USB 2.0 client
Keyboard 3 push buttons
Power supply Ni-MH rechargeable cells: operation time > 40 hours1
USB interfac:e 500 mA HUB
Environmental conditions Temperature from -10 oC to 50 oC
Humidity up to 95 % RH, non-condensed
Dimensions  88 x 49.5 x 19.2 mm
Weight 100 grams with batteries


 1depends on instrument operation mode

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

Hearing protection selection in accordance with ISO 4869-2

Workers should wear hearing protectors if the noise or sound level at the
workplace exceeds 85 decibels. The selection of hearing protectors depends
on a noise level in the working environment. Therefore the selection of
suitable hearing protector should be based on noise measurement.
Each hearing protector has attenuation characteristics expressed in units of
three methods:
SNR Single Number Rating,
HML High, Medium and Low frequency method, using
A-weighted and C-weighted sound measurements in
the calculation
Octaves the most accurate method requiring measurement
in 1/1 octave bands
The Supervisor supports all three methods allowing users to build up the
hearing protectors data base. The calculation is done automatically with
selection of data files containing noise results required by selected method.

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The History of SV104 Noise Dosimeter

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