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Dual Channel Noise Dosimeter [SV 102+]
SV 102+ Dual Channel Noise Dosimeter has been designed for the accurate measurement of noise exposure to ISO 9612 and MIRE (microphone in real ear) measurements to ISO 11904-1.
This new instrument uses a class beating high resolution, full color OLED screen making it even easier to read; even in full daylight. The small memory capability of its predecessor; the SV102, has been upgraded by adding a microSD card for an incredible amount of storage capability. The sampling rate has been increased from 24 kHz to 48 kHz which enables the measurement of sound in the full frequency band. Also new is an LED that indicates the status of the measurement and changes color when the noise dose exceeds the limit set.
A unique feature of all SVANTEK dosimeters, including the SV102+, is their ability to simultaneously analyze 1/1 octave and record audio events. The use of 1/1 octave analysis is the most accurate method for the correct selection of hearing protection to ISO 4869-2 while simultaneous audio recording allows the user to capture and eliminate false sounds affecting the result of exposure to noise.
Specifications
| Standards | IEC 61252; ANSI S1.25-1991; Class 2: IEC 61672:2002, ISO 11904-1 |
| Acoustic Dosimeter Mode | Lav/Leq, SPL, Lmax, Lmin, SEL, SEL8, PSEL, LEPd, Dose (%), TWA, E, E_8h, Peak, Run Time, Upper Limit Time (ULT), L(C-A), Projected Dose (D_8h) |
| 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 detectors |
| Weighting Filters | A, C and Z |
| RMS Detector | Digital true RMS detector with Peak detection, resolution 0.1 Db Time constants: Slow, Fast, Impulse |
| Measurement Range | 45 dBA RMS - 141 dBA Peak (with SV 25D microphone) |
| Frequency Range | 20 Hz - 20 kHz, sampling rate 48 kHz |
| Dynamic Range | 100 dB |
| Data Logger | Time-history logging of Leq/Lmax/Lmin/Peak/Lav results to internal memory with time step down to 100 millisecond to microSD card |
| Audio Recorder | Time-domain signal events recorder (option) |
| Dual-channel Mode | Dual-channel measurement mode with second microphone SV 25D or SV 25S |
| 1/1 Octave | Dual-channel 1/1 octave real-time analysis and spectra logging, 10 filters with centre frequencies from 31.5 Hz to 16 kHz, Type 1: IEC 61260 (option) |
| 1/3 Octave | Dual-channel 1/3 octave real-time analysis and spectra logging, 31 filters with centre frequencies from 20 Hz to 20 kHz, Type 1, IEC 61260 (option) |
| Display | Colour 160 x 128 pixels OLED type |
| Memory | MicroSD card 8 GB (removable & upgradeable) |
| Power Supply | Two AA batteries (alkaline): operation time > 16 h (3.0 V / 1.6 Ah) Two rechargeable batteries (not included): operation time > 20h (2.4 V / 2.6 Ah) USB interface: 150 mA HUB |
| Dimensions | 95 x 83 x 33 mm (without microphones) |
| Weight | 260 grams with batteries (without microphones) |