SV 104A Noise Dosimeter with Bluetooth Communication
The SV 104A is a new personal noise dosimeter with a Bluetooth ®  communication supported by the Smartphone application called Assistant. For measurements of noise at work in accordance to ISO 9612 as well as OSHA, MSHA and ACGIH standards all settings are configurable in the PC software and can be stored in the dosimeter memory as setup files that can be selected directly from the dosimeter keyboard.
The dosimeter has a very robust MEMS microphone that has a lifetime warranty.  All vibrations that affect noise measurement results are detected by an inbuilt tri-axial vibration accelerometer and are marked in the results time history, so they can be easily excluded from dose calculations.
Additionally, the accelerometer detects if dosimeter is not used by the worker and marks this information in time history.
We have designed the SV 104A to make noise dosimetry measurements easier. Firstly, the voice comment feature replaces necessity of identifying the dosimeter with a different type of stickers.
Secondly, a single large measurement range of 53 dB to 141 dB enables measurement in all kinds of working environment. But mostly, the auto-calibration is what makes the SV 104A easy in use. Once the SV 104A detects a calibration signal, it calibrates automatically saving the calibration data together with the measurement file, before and after measurement.
The list of distinguishing features of SV 104A includes a colour OLED display that can be easily read even in a full daylight or in the dark. The user interface is very friendly to use which makes setting up and using the instrument easier than ever. The user may choose from multiple setup files that can be configured through the included "Supervisor" software. All measurement data are stored in the integral 8 GB memory which provides a vast amount of storage.
Part No
1) Svantek Model SV 104A Personal noise dosimeter (Single Kit)
2) Svantek Model SV 104A K5 5 units x SV 104A personal noise dosimeters
3) Svantek Model SF 104A Oct 1/1 octave analysis option
4) Svantek Model SF 104A WAV-Audio events recording option
5) Svantek Model SA 54 USB Charger
6) Svantek Model SA 156 USB Hub for 5 Noise Dosimeters
7) Svantek Model 122A Spare Windscreen
8) Svantek Model SA 147 Waterproof carrying case for noise dosimeter and single docking
station
Features
- Shock resistant MEMS microphone with a life-time warranty
- Bluetooth ®  communication and application for Android platforms
- Personal Noise Dosimeter conforming to IEC 61252, ANSI S1.25 and Class 2 IEC 61672
- Single measurement range 53 dBA RMS ÷ 141 dBA Peak
- L (C-A)Â calculation
- Automatic calibration start (auto-calibration)
- Built-in tri-axial accelerometer for vibration shock (knocking) detection
- High contrast colour OLED display
- Option for octave real-time analysis
- Option for audio events recording (wave format)
- Voice tagging
- Three virtual measurement profiles
- Measurement of L aeq  and L cpeak  in one profile
- Operational time > 48 hours
- Rechargeable battery
- Extremely compact, lightweight and robust case
Specification
Standards : IEC 61252; ANSI S1.25-1991;
Class 2: IEC 61672-1:2013
Weighting : 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" MEMS type
Measurement range : 53 dBA RMS ÷ 141 dBA Peak
Frequency range : 20 Hz ÷ 10 kHz
Dynamic range : 98 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 1/3 octave band filters,Class 1 IEC 61260; 28 filters with center frequencies from
20 Hz to 10 kHz (option)
Basic data
Display : 128 x 64 pixels OLED
Memory : 8 GB
Interfaces : USB 2.0 client, electrical contacts (new-type
docking station compatible) Long-range
Bluetooth®, 4.0 Smart
Keyboard : 3 push buttons
Power supply : Li-Ion rechargeable cells: operation time > 48 hours 1 USB interface 500 mA HUB
Environmental conditions : Temperature from -10Â o C to 50 Â o C
Humidity up to 95 % RH, non-condensed
Dimensions : 88 x 49.5 x 19.2 mm
Weight : 121 grams with batteries
1 depends on the instrument settings
Optional Functions
The option for 1/1 and 1/3 OCTAVE real-time analysis allows accurate and correct selection of
hearing protectors. When presented as a spectrogram, the frequency analysis can be used for a
quick verification of noise sources in the time history. It can be activated at any time, by entering
an activation code.
The AUDIO EVENTS RECORDING option works during measurement and is logged in parallel
to time history so it can be played back in the PC software. The settings, like triggers or recording
time, are adjustable. It can be activated at any time, by entering an activation code.
Svantek 104A Noise Dosimeter datasheet
