ShinS 162B Class 2 Integrating Sound Level Meter

Overview

The ShinS 162B is a Class 2 integrating sound level meter engineered for occupational noise assessment, environmental noise monitoring, and regulatory compliance verification in accordance with IEC 61672-1:2013. It employs a precision pre-polarized condenser microphone (MK-216) coupled with a low-noise, removable preamplifier (MV-200) to deliver stable, repeatable acoustic measurements across its full dynamic range of 20 dB(A) to 140 dB(A). The instrument implements true RMS detection with simultaneous real-time computation of multiple metrics—including L_Aeq, L_Cpeak, L_Zpeak, time-weighted average (TWA), noise dose (%), and estimated dose—enabling comprehensive exposure evaluation under OSHA, EU Directive 2003/10/EC, and HSE guidelines. Its robust architecture, ergonomic handheld form factor, and high-contrast color OLED display ensure reliable field operation under variable lighting and ambient conditions.

Key Features

• Triple integrated virtual sound level meters operating concurrently—supporting independent configuration of integration parameters (Q=3, Q=4, or Q=5), time weighting (Fast/Slow/Impulse), and frequency weighting (A/C/Z).
• High-resolution color OLED display with adjustable backlight, enabling clear visualization of up to 12 simultaneous parameters including L_xy, L_xyMax, L_xyMin, L_Xeq, L_Cpeak, L_Zpeak, TWA, Dose%, and elapsed measurement time.
• Configurable logging intervals from 10 ms to 2 s, supporting both short-duration impulse analysis and long-term environmental trend monitoring.
• 4 GB internal flash memory capable of storing ≥10,000 complete measurement sessions, each with full metadata (date/time, configuration, operator ID, GPS tag if externally enabled).
• Voice annotation functionality: 30-second pre-measurement audio note capture per session, stored alongside numerical data for contextual traceability.
• IEC 61672-1:2013 Class 2 certified performance, verified at accredited calibration laboratories; self-noise <21 dB(A) ensures accurate low-level measurements near threshold limits.
• USB 2.0 interface for direct connection to host PC—supports both power delivery (5 V) and bidirectional data transfer without external adapters.

Sample Compatibility & Compliance

The ShinS 162B is designed for use with standard ½-inch electret condenser microphones conforming to IEC 61094-4 specifications. Its MK-216 microphone meets Class 2 tolerances for sensitivity, linearity, and temperature stability over –10 °C to +50 °C. The instrument supports full compliance workflows required by occupational health and safety regimes: it calculates time-weighted average (TWA) and noise dose (%) in alignment with ISO 9612:2009 methodology and enables reporting formats suitable for GLP-aligned documentation. While not inherently 21 CFR Part 11 compliant, audit-trail-ready data exports (via NoiseTools software) support validation protocols in regulated industrial hygiene programs. Calibration verification is performed using traceable acoustic calibrators (e.g., Class 1 pistonphones per IEC 60942) prior to each measurement campaign.

Software & Data Management

The included NoiseTools desktop application (Windows XP–10, 32-/64-bit compatible) provides full configuration, data download, spectral post-processing, and report generation. Users can define custom measurement templates, apply statistical filters (e.g., exclude outliers >3σ), generate cumulative distribution functions (CDFs), and export datasets in CSV, PDF, or XML formats for integration into enterprise EHS platforms. All stored measurements include embedded timestamps, instrument serial number, firmware version, and user-defined tags—ensuring data integrity and chain-of-custody continuity. Firmware updates are delivered via signed package files, maintaining cryptographic integrity during deployment.

Applications

• Workplace noise exposure assessment per OSHA 29 CFR 1910.95 and EU Physical Agents (Noise) Directive.
• Environmental noise mapping around transportation corridors, construction sites, and industrial perimeters.
• Product noise certification testing for appliances, HVAC systems, and power tools (per ISO 3744, ISO 7779).
• Educational acoustics labs requiring multi-parameter real-time visualization and student-accessible data export.
• Community noise complaint investigations requiring legally defensible, timestamped evidence logs.

FAQ

Is the ShinS 162B suitable for legal metrology or court-admissible noise evidence?
The instrument meets IEC 61672-1:2013 Class 2 requirements and is appropriate for occupational and environmental monitoring where Class 2 accuracy is specified. For forensic or litigation-grade evidence, Class 1 instrumentation with full traceable calibration history and procedural documentation is recommended.
Can the device operate continuously on USB power alone?
Yes—the 162B draws power directly from a 5 V USB source and will function indefinitely without battery depletion, provided the host port supplies ≥500 mA.
Does NoiseTools support automated report generation for regulatory submissions?
Yes—templates for OSHA 300 logs, EU noise exposure registers, and local authority environmental reports can be configured and exported with company branding, signature fields, and digital timestamps.
What is the maximum recording duration per session?
Session length is constrained only by available storage and selected logging interval; at 1 s resolution, >100 hours of continuous L_Aeq and peak data may be captured within a single file.
Is the microphone interchangeable with other Class 2 transducers?
The MK-216 is mechanically and electrically compatible with any IEC 61094-4-compliant ½-inch pre-polarized microphone; however, factory calibration coefficients are stored internally and must be reloaded after microphone replacement using NoiseTools.