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Dual Channel Noise Dosimeter [SV 102A+]
SV 102A+ Class 1 Dual Channel Dosimeter is presenting new approach to occupational health and safety acoustic monitoring task. This dosimeter can be also used as a dual-channel Class1 sound level meter and real-time 1/1 octave & 1/3 octave analyser.
Octave analysis, providing direct data for the design of the ear-protectors, together with Audio Events Recording (AER) function show the new reference standard on acoustic dose measurement field. The binaural dose measurement and octave analysis are simultaneously performed by this compact-size instrument. Three acoustic profiles per channel allow parallel measurements with independently defined filters and RMS detector time constants. Advanced time-history logging in each profile, together with spectra saving and Audio Events Recording provide a complete information about the measured signal. Data is stored in large 8 GB memory and can be easily downloaded to any PC using USB interface and Supervisor software.
Specifications
| Standards | IEC 61252; ANSI S1.25-1991; Class 1: 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 |
| Measurement Range | 45 dBA RMS - 141 dBA Peak (with SV 7052E 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 7052E or SV 25S (option) |
| 1/1 Octave | Dual-channel 1/1 octave real-time analysis and spectra logging, |
| 1/3 Octave | Dual-channel 1/3 octave real-time analysis and spectra logging, |
| 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) |