TSI AeroTrak 9303 Portable Laser Particle Counter

Overview

The TSI AeroTrak 9303 Portable Laser Particle Counter is an ISO 21501-4 compliant optical particle counter engineered for high-fidelity airborne particulate monitoring in cleanrooms, pharmaceutical manufacturing environments, HVAC validation, and controlled laboratory settings. Utilizing a stable laser diode light source and precision optical detection geometry, the instrument operates on the principle of single-particle light scattering: airborne particles drawn through the sensing volume scatter incident laser light, with pulse amplitude and duration correlated to particle size and transit velocity. The 9303 employs a calibrated 2.83 L/min (1 CFM) volumetric flow path—maintained by an integrated diaphragm pump and isokinetic sampling probe—to ensure representative sampling across diverse air velocities and duct configurations. Its dual fixed-size channels (0.3 µm and 5.0 µm) and one user-selectable intermediate channel (0.5, 1.0, 2.0, or 2.5 µm) enable simultaneous three-channel real-time counting across the 0.3–10 µm range, supporting both routine compliance verification and root-cause investigation of contamination excursions.

Key Features

• ISO 21501-4 certified optical design with NIST-traceable calibration for metrological integrity in regulated environments
• Three simultaneous size channels: two fixed (0.3 µm and 5.0 µm) and one configurable intermediate channel (0.5 / 1.0 / 2.0 / 2.5 µm)
• High-reproducibility 2.83 L/min (1 CFM) flow control with integrated vacuum pump and internal HEPA filtration
• Robust, ergonomic housing fabricated from high-wear-resistant injection-molded polymer for field durability
• 3.6-inch monochrome LCD (160 × 160) with intuitive direct-key interface—no touchscreen dependency for glove-compatible operation
• Onboard data storage for 1,500 sample records across up to 250 unique location IDs, supporting audit-ready traceability
• Rechargeable Li-ion battery providing 4.5 hours of continuous operation; hot-swappable design minimizes downtime during extended surveys
• Comprehensive status feedback including low-battery warning, filter saturation alert, and maintenance prompts aligned with preventive service intervals

Sample Compatibility & Compliance

The AeroTrak 9303 is validated for use with ambient air, compressed gases (via optional desiccant-dried inlet), and laminar airflow hoods operating within specified environmental limits (5–35 °C, ≤95% RH non-condensing). Its isokinetic sampling probe ensures representative aspiration across ducts and grilles per ISO 14644-1 Annex B and EU GMP Annex 1 requirements. The instrument meets JIS B9921 zero-count and counting efficiency specifications (50% @ 0.3 µm, ≥100% @ ≥0.45 µm) and conforms to ISO 21501-4 for light-scattering particle counters used in cleanroom certification. CE marking confirms compliance with EU Electromagnetic Compatibility (2014/30/EU) and Low Voltage (2014/35/EU) directives. While not intrinsically safe, it is rated for use in non-hazardous locations per IEC 61010-1.

Software & Data Management

Data export and reporting are managed via TSI’s TRAKPRO™ Lite software (included), which supports USB-based download of time-stamped sample logs—including date/time, location ID, channel counts, sampling duration, and flow verification flags. TRAKPRO Lite generates PDF and CSV outputs compliant with FDA 21 CFR Part 11 requirements when deployed with appropriate organizational controls (e.g., electronic signatures, audit trail configuration, and user access management). The software enables batch comparison, trend analysis over time, and overlay of ISO Class limits per ISO 14644-1:2015. All stored records retain full metadata required for GLP/GMP audits, including operator ID (manually entered), instrument serial number, and calibration due date.

Applications

• Cleanroom classification and routine monitoring per ISO 14644-1 and EU GMP Annex 1
• HVAC system commissioning, balancing, and filter leak testing (in conjunction with polyalphaolefin (PAO) challenge aerosols)
• Pharmaceutical aseptic processing environment qualification (fill-finish suites, isolators, RABS)
• Medical device packaging clean area surveillance
• Microelectronics fabrication facility particle baseline establishment
• University and contract research laboratory airborne particulate method development
• Environmental health & safety assessments in laboratories handling nanomaterials or fine powders

FAQ

What standards does the AeroTrak 9303 comply with?
The instrument meets ISO 21501-4, JIS B9921, and CE requirements. It is suitable for applications governed by ISO 14644-1, USP , and EU GMP Annex 1 when operated per TSI’s validated procedures.
Can the 9303 be used for compressed air monitoring?
Yes—when equipped with TSI’s optional desiccant dryer and pressure-regulated inlet assembly, it supports compressed air testing per ISO 8573-1 Class 2/3 particle requirements.
Is the battery replaceable in the field?
Yes. The Li-ion battery is user-removable and field-replaceable without tools, enabling uninterrupted operation during multi-site surveys.
Does the device support remote triggering or network integration?
No. The 9303 is a standalone portable unit with USB-only data transfer; it lacks Ethernet, Wi-Fi, or analog output interfaces.
How often does the instrument require recalibration?
TSI recommends annual recalibration against NIST-traceable reference aerosols; however, users must perform daily zero-checks and flow verification per SOP prior to critical measurements.