TSI SidePak AM520 Personal Aerosol Monitor (PM10, PM2.5)

Overview

The TSI SidePak AM520 Personal Aerosol Monitor is a compact, battery-powered, real-time photometric instrument engineered for occupational hygiene monitoring of inhalable and thoracic aerosol mass concentrations in the worker’s breathing zone. Based on 90° light scattering detection using a stable 650 nm laser diode, the AM520 delivers trace-level sensitivity and high reproducibility across a broad dynamic range (0.001–100 mg/m³). Its core function is to quantify airborne particulate matter—including dust, fume, mist, smoke, and diesel particulate matter (DPM)—as mass concentration in milligrams per cubic meter (mg/m³), directly traceable to gravimetric reference methods per ISO 12103-1. Unlike fixed-station monitors, the AM520 is worn as a personal sampler, enabling time-weighted average (TWA) and short-term exposure limit (STEL) assessments aligned with OSHA, NIOSH, and ACGIH guidelines. The instrument integrates a precision flow control system and interchangeable physical size-selective inlets—allowing field-selectable measurement of PM10, PM4 (respirable), PM5 (China-specific respirable standard), PM2.5, PM1, and 0.8 μm DPM fractions without recalibration.

Key Features

• Real-time aerosol mass concentration output with configurable time constants (1, 5, 10, 15, or 30 seconds) for optimized response to transient exposure events
• Dual-mode operation: standalone keypad navigation or full-featured configuration via TrakPro™ v5 software (Windows-based, FDA 21 CFR Part 11 compliant audit trail optional)
• Robust, field-serviceable size-selective inlets—including NIOSH-approved PM4 cyclones, ISO-compliant PM10 impactors, China GBZ/T 192.2–2007–aligned PM5 samplers, and DPM-specific 0.8 μm cut-point cyclones
• Integrated audible (95 dB) and visual (flashing red LED + OLED alert banner) alarm system with user-programmable thresholds (0.001–999 mg/m³) and configurable alarm delay intervals (30 s to 10 min)
• High-contrast color OLED display with intuitive icon-driven interface and simultaneous readout of concentration, battery status, flow rate, and active inlet type
• Extended runtime lithium-ion battery (5400 mAh) supporting >20 hours of continuous operation at 1.7 L/min with PM2.5 cyclone; full recharge in ≤4 hours
• Onboard data logging capacity of ~80,000 records (user-selectable intervals: 1 s, 1, 5, 15, or 30 min), exportable as CSV or native .trk files for regulatory reporting

Sample Compatibility & Compliance

The SidePak AM520 is validated for use with a wide spectrum of workplace aerosols: mineral dusts (e.g., silica, limestone), metal fumes (welding, smelting), organic mists (lubricants, solvents), combustion-derived particles (diesel exhaust, biomass smoke), and pharmaceutical powders. Its optical calibration follows ISO 12103-1, using A1 test dust and gravimetric reference measurements for the respirable fraction—ensuring comparability with laboratory filter-based analysis. While not intrinsically safe, the device meets IEC 61000-6-3 (EMC) and IEC 61000-6-2 (immunity) standards. It supports GLP/GMP-aligned workflows when used with TrakPro v5’s optional electronic signature and audit trail module. Regulatory applicability includes OSHA 1910.1200 (HCS), MSHA Part 62, EU Directive 2004/37/EC (carcinogens), and China’s GBZ 2.1–2019 occupational exposure limits.

Software & Data Management

TrakPro™ v5 software provides comprehensive instrument setup, data visualization, and report generation. Users can define custom exposure scenarios, assign unique identifiers to sampling events, apply correction factors (e.g., for material-specific density or hygroscopic growth), and generate OSHA-compliant exposure assessment reports. Raw data files retain metadata including instrument serial number, calibration date, inlet configuration, flow rate history, and environmental conditions (temperature, RH). Export formats include CSV, PDF, and XML—facilitating integration into enterprise EHS platforms such as Intelex or Sphera. Firmware updates and configuration templates are managed centrally, ensuring fleet-wide consistency during multi-site industrial hygiene surveys.

Applications

• Construction sites: real-time tracking of silica dust during cutting, grinding, and demolition
• Mining and tunneling: respirable coal dust and rock dust exposure mapping
• Foundries and metal fabrication: fume monitoring during welding, casting, and thermal spraying
• Pharmaceutical manufacturing: containment verification during powder handling and tablet compression
• Power generation: fly ash and soot exposure assessment in boiler rooms and turbine halls
• Transportation infrastructure: DPM monitoring near diesel-powered equipment in ports, rail yards, and underground transit systems
• Confined space entry: pre-entry and continuous monitoring for combustible dust hazards per NFPA 652

FAQ

Is the SidePak AM520 suitable for compliance with OSHA PELs for respirable crystalline silica?
Yes—when configured with the PM4 cyclone and operated per NIOSH Method 0600, it provides real-time estimates consistent with gravimetric reference methods required for exposure assessment under 29 CFR 1926.1153.
Can the instrument be calibrated in-house?
Field calibration requires NIST-traceable aerosol generators and reference gravimetric samplers; routine zero checks and span verification are supported, but full calibration must follow TSI’s documented procedure and is recommended annually or after impact damage.
Does the AM520 meet China’s GBZ/T 192.2–2007 standard for PM5?
Yes—the dedicated PM5 inlet is designed to match the 5 μm 50% cut-point specified in GBZ/T 192.2–2007 and has been verified against Chinese national reference laboratories.
What is the temperature coefficient of the sensor?
Approximately +0.0005 mg/m³/°C relative to the temperature at last zero adjustment.
Is USB communication compatible with modern Windows OS versions?
Yes—driver support is maintained for Windows 10 and 11 (64-bit); TrakPro v5 requires .NET Framework 4.8 and administrative privileges for installation.