ASV5910 Personal Sound Exposure Meter
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | ASV5910 |
| Pricing | Upon Request |
Overview
The ASV5910 Personal Sound Exposure Meter is a compact, dual-channel occupational noise monitoring instrument engineered for high-fidelity, real-time assessment of personal sound exposure in industrial, construction, transportation, and occupational health environments. It operates on the fundamental principles of precision electret condenser microphone transduction combined with digital true-RMS detection, enabling compliant measurement of time-weighted average (TWA), equivalent continuous sound level (Leq,T), sound exposure level (SEL), noise dose (DOSE), peak C-weighted sound pressure level (LC,peak), and percentile-based statistical metrics (LN). Designed for wearability and long-term unattended operation, the ASV5910 supports simultaneous acquisition across two independent acoustic channels—each configurable with A-, C-, or Z-frequency weighting and F-, S-, I-, or Peak time weighting—ensuring full alignment with international occupational hygiene protocols for hearing conservation programs.
Key Features
- Dual-channel parallel measurement architecture: Enables concurrent monitoring of two distinct acoustic environments or validation via cross-channel redundancy.
- Simultaneous integrated functions: Real-time integration, second-by-second acoustic logging, and synchronized audio recording operate without mutual interference.
- 2 GB embedded Flash RAM storage: Supports up to 8,187 independent measurement sessions; scalable retention for multi-shift or multi-week exposure assessments.
- Plug-and-play Mini USB interface: Operates in U-disk mode—no driver installation required—facilitating rapid data extraction and firmware updates on Windows, macOS, and Linux platforms.
- Compact ergonomic form factor: Dimensions of 68 × 48 × 20 mm and mass of 100 g ensure secure attachment to clothing or harnesses without compromising worker mobility or comfort.
- Flexible operational modes: Programmable auto-start triggers—including time-scheduled activation, threshold-exceeded initiation (with pre- and post-trigger buffer), and manual control—optimize battery life and measurement relevance.
- Compliance-certified hardware: Fully conforms to IEC 61672:2002 Class 2 (Sound Level Meters), IEC 61252:2002 (Personal Sound Exposure Meters), GB/T 3785–2010 (Class 2), and GB/T 15952–2010 (Noise Dose Meters).
Sample Compatibility & Compliance
The ASV5910 accommodates two interchangeable electret condenser microphone configurations: a ¼″ free-field pre-polarized capsule (sensitivity approx. −50 dB re 1 V/Pa) for high-SPL applications (60–143 dBA/C/Z), and a ½″ free-field variant (sensitivity approx. −30 dB re 1 V/Pa) optimized for low-noise environments (40–120 dBA/C/Z). Its 20 Hz–12.5 kHz frequency response satisfies broadband assessment requirements for most occupational noise sources, including machinery, pneumatic tools, and HVAC systems. All reported metrics—including Leq,T, LEX,8h, TWA, DOSE, Lpeak, and LN percentiles—are traceably derived per ISO 9612:2009 and ANSI S1.25–1991 methodologies. The device supports audit-ready data export for GLP-compliant reporting and integrates seamlessly into OSHA 1910.95 and EU Directive 2003/10/EC regulatory workflows.
Software & Data Management
Data retrieval and analysis are performed using vendor-provided PC software compatible with Windows 10/11, supporting batch import, spectral visualization, exposure trend mapping, and automated report generation in PDF or CSV format. Each stored record includes timestamp, channel configuration, weighting selections, calibration status, and environmental metadata. Audio recordings—configurable at 32 kHz/16-bit (standard) or custom rates up to 48 kHz/16-bit—are time-aligned with acoustic metrics and tagged with trigger context (e.g., “exceedance of 85 dBA”). All exported datasets retain immutable file integrity and support FDA 21 CFR Part 11–aligned audit trails when deployed in regulated manufacturing or pharmaceutical facilities.
Applications
- Occupational health & safety (OHS) audits for compliance with national and international noise exposure limits.
- Baseline and periodic noise mapping in foundries, textile mills, printing plants, and logistics hubs.
- Validation of hearing protection device (HPD) effectiveness through paired measurements (with/without HPD).
- Acoustic dosimetry for mobile workers—including welders, crane operators, and maintenance technicians—where fixed-point monitoring is impractical.
- Research-grade noise exposure correlation studies linking acoustic metrics to physiological biomarkers or fatigue indicators.
- Training and awareness programs utilizing recorded audio samples to demonstrate hazardous vs. acceptable noise profiles.
FAQ
What standards does the ASV5910 comply with?
It meets IEC 61672:2002 Class 2, IEC 61252:2002, GB/T 3785–2010 Class 2, and GB/T 15952–2010—covering both sound level meter and personal sound exposure meter requirements.
Can the device measure both A- and C-weighted levels simultaneously?
Yes—each of the two independent channels can be assigned separate frequency weightings (A, C, or Z) and time weightings (F, S, I, or Peak), enabling parallel evaluation of different regulatory criteria.
Is audio recording synchronized with acoustic metrics?
Yes—recordings are precisely time-stamped and aligned with corresponding Leq, Lpeak, and dose calculations, supporting forensic-level root-cause analysis of noise events.
How is calibration verified during field use?
The unit supports acoustic calibrator input (94 dB or 114 dB @ 1 kHz) with automatic calibration check logging; calibration status is embedded in every data file.
What battery life can be expected during continuous logging?
With standard alkaline AAA batteries, typical runtime exceeds 16 hours under mixed-use conditions (logging + periodic recording); optional rechargeable battery kits extend operational duration further.
