Noise Dosimeter [SV 104A]

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. 

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 color 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. 

 

Specifications

Standards	IEC 61252; ANSI S1.25-1991; Class 2: IEC 61672-1:2013
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
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 octave band filters, Class 1, IEC 61260  9 filters with centre frequencies from 31.5 Hz to 8 kHz (option)
1/3 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)
Display	128 x 64 pixels OLED
Memory	8 GB
Power supply	Li-Ion rechargeable cells: operation time > 48 hours USB interface: 500 mA HUB
Dimensions	88 x 49.5 x 19.2 mm
Weight	121 grams with batteries