TSI SidePak AM520 Personal Aerosol Monitor

Overview

The TSI SidePak™ AM520 Personal Aerosol Monitor is a compact, battery-powered, real-time laser photometer engineered for quantitative assessment of airborne particulate mass concentration in the worker’s breathing zone. Utilizing calibrated light scattering principles—specifically 650 nm diode laser illumination coupled with a precision photodetector—the instrument delivers instantaneous mass concentration readings traceable to gravimetric reference methods. Its core design aligns with occupational health physics requirements for personal exposure monitoring, supporting compliance-driven sampling strategies under OSHA 29 CFR 1910.1200 (Hazard Communication), NIOSH Manual of Analytical Methods (NMAM) Method 0600, and ISO 7708:1995 for particle size-selective sampling. Unlike fixed-station monitors, the AM520 is worn directly on the worker’s lapel or shoulder, enabling true personal exposure profiling across dynamic work tasks and spatially heterogeneous environments.

Key Features

• Real-time aerosol mass concentration output (0.001–100 mg/m³) with 0.001 mg/m³ resolution and ±10% accuracy across its full range
• Interchangeable, NIOSH/ISO-compliant impactor-based size-selective inlets: PM₁₀, PM₄ (respirable), PM₅ (aligned with China’s GBZ/T 192.2–2007 respirable dust definition), PM₂.₅, PM₁, and DPM (0.8 µm aerodynamic diameter cut-point)
• Dual-mode alarm system: programmable visual (OLED flash) and audible (85 dB at 30 cm) alerts triggered by user-defined concentration thresholds
• High-capacity rechargeable lithium-ion battery supporting >20 hours of continuous logging at 1-second sampling intervals
• Full-color OLED display with intuitive menu navigation, real-time trend graphing, and on-device data review
• Ruggedized inlet assemblies—including Dorr-Oliver cyclone and diesel-specific cyclone—engineered for high-concentration industrial settings without flow degradation or clogging
• Internal non-volatile memory stores up to 32,000 time-stamped data points (including date, time, concentration, alarm status, and inlet configuration)

Sample Compatibility & Compliance

The AM520 is validated for use with a broad spectrum of industrially relevant aerosols: mineral dusts (e.g., silica, coal, limestone), metal fumes (welding, grinding), organic particulates (wood, flour, pharmaceutical powders), combustion-derived aerosols (diesel exhaust, biomass smoke), and misted liquids (coolant oils, acid mists). It meets the physical sampling criteria defined in ISO 7708:1995 and EN 481:1993 for respirable, thoracic, and inhalable fraction definitions. While not intrinsically safe or explosion-proof, it is rated for general-purpose indoor and outdoor workplace environments where hazardous atmospheres are not present. Calibration is performed using NIST-traceable polydisperse PSL or ammonium sulfate aerosols; each unit ships with a factory-issued calibration certificate compliant with ISO/IEC 17025 documentation practices.

Software & Data Management

Data retrieval and analysis are supported via TrakPro™ Software v5—a Windows-based application that enables comprehensive post-sampling evaluation. TrakPro v5 provides time-series visualization, customizable report generation (PDF/CSV), statistical summaries (TWA, STEL, peak exposure), and audit-trail functionality meeting GLP and internal QA/QC requirements. The software supports multi-instrument synchronization, batch processing of field-collected datasets, and export compatibility with enterprise EHS platforms (e.g., Intelex, Sphera). All logged data include embedded metadata: instrument serial number, inlet type, calibration date, operator ID, and GPS coordinates (when paired with optional Bluetooth GPS module). Firmware updates and configuration changes (e.g., alarm setpoints, logging interval, units) are performed exclusively through TrakPro v5 to ensure version control and regulatory defensibility.

Applications

The AM520 serves as a primary tool for industrial hygienists conducting task-based exposure assessments across regulated sectors. Typical deployment scenarios include: respirable crystalline silica monitoring during concrete cutting and abrasive blasting; diesel particulate evaluation in underground mining and rail maintenance facilities; welding fume characterization in aerospace fabrication; pharmaceutical powder handling in cleanroom gowning rooms; grain dust exposure mapping in silo loading operations; and HVAC commissioning verification in hospital mechanical rooms. Its portability and rapid setup make it ideal for short-duration surveys (e.g., 15-minute spot checks), full-shift personal sampling (8+ hours), and area monitoring when mounted on tripods or vehicle dashboards.

FAQ

Is the SidePak AM520 intrinsically safe or certified for hazardous locations?

No. The AM520 is designed for general industrial environments only and does not carry ATEX, IECEx, or UL Class I Division 1/2 certification.
Can the instrument be used for regulatory compliance reporting under OSHA or MSHA?

Yes—when deployed per NIOSH-recommended protocols (e.g., full-shift sampling with appropriate size-selective inlets and documented calibration), AM520 data support exposure assessment for OSHA PELs and MSHA standards.
Does the AM520 require annual recalibration?

TSI recommends annual functional verification and calibration against a gravimetric reference, particularly after mechanical shock, filter replacement, or extended high-concentration exposure.
What is the difference between PM₄ and PM₅ inlets on the AM520?

PM₄ follows the international respirable convention (ISO/CEN 7708); PM₅ is configured to match China’s national standard GBZ/T 192.2–2007, which defines respirable dust using a slightly steeper 5 µm cut-point curve.
Is TrakPro v5 compatible with modern Windows operating systems?

Yes—TrakPro v5 supports Windows 10 and Windows 11 (64-bit), including compatibility with Microsoft Defender Application Control policies when deployed in regulated IT environments.