Ailun HA6012 Integrated Ambient Air Sampler

Overview

The Ailun HA6012 Integrated Ambient Air Sampler is an engineered solution for simultaneous, synchronized collection of gaseous pollutants (e.g., NO_x, SO₂) and airborne particulate matter (PM) under field-deployed, unattended conditions. Designed in accordance with Chinese national metrological verification regulations JJG 943–2011 (TSP Samplers) and JJG 956–2000 (General Atmospheric Samplers), as well as enterprise standard Q/0212AIL003–2012, the HA6012 operates on a dual-pump, dual-flow architecture—enabling independent, real-time control of two parallel sampling streams. Each channel supports calibrated volumetric flow rates up to 100 L/min against system backpressures up to 130 kPa, ensuring robust performance across variable filter media resistance and ambient temperature gradients. Its constant-temperature operation (20 ± 5 °C) maintains thermodynamic stability of sampled air mass, minimizing condensation artifacts and preserving analyte integrity during extended deployments.

Key Features

• Dual-channel independent flow control: Two digitally regulated sampling circuits support concurrent gaseous and particulate sampling with fully adjustable flow rates (0–100 L/min per channel) and programmable duration (1 min to 99 h 59 min).
• Intelligent thermal management: Integrated high-precision NTC sensor triggers automatic heating below 15 °C and deactivates above 25 °C, maintaining cabinet internal temperature at 20 ± 5 °C without manual intervention.
• Triple-function desiccation module: A proprietary integrated drying tube combines silica gel desiccation, particulate filtration (≥0.3 µm efficiency), and anti-backflow protection—eliminating routine maintenance and preventing absorption solution ingress into flow sensors or vacuum pumps.
• Fail-safe operational safeguards: Real-time flow deviation detection halts sampling if measured flow falls outside ±2% of setpoint; power interruption recovery preserves all runtime parameters and resumes sampling upon grid restoration.
• Optimized mechanical design: Compact housing (W × D × H < 350 × 280 × 320 mm), low-noise brushless DC fans (<55 dB[A]), and color-coded gas pathways enhance field usability, reduce operator error, and simplify multi-analyte setup configuration.
• High-reliability fluidic architecture: Hermetic sealing via standardized absorption bottle couplings ensures leak-tight integrity; all wetted components are chemically inert to common absorbents (e.g., KI–glycerol for ozone, alkaline H₂O₂ for SO₂).

Sample Compatibility & Compliance

The HA6012 is compatible with standard EPA/ISO-compliant sampling media—including quartz fiber filters (for PM_2.5/PM₁₀ gravimetric analysis), Teflon-membrane filters (for ion chromatography), and impingers containing aqueous absorbents (e.g., sodium tetrachloromercurate for SO₂). When paired with certified size-selective inlets (e.g., WINS impactors or cyclonic cut-points per ISO 7708), it meets requirements for TSP, PM₁₀, PM_2.5, PM₁, and respirable fraction sampling. The instrument’s flow calibration traceability aligns with JJG 956–2000 procedures and supports audit-ready documentation for GLP-compliant environmental laboratories. While not pre-certified to EU EN 12341 or US EPA Reference Method PS-1, its metrological specifications satisfy foundational criteria for equivalence assessment under ISO/IEC 17025-accredited validation protocols.

Software & Data Management

The HA6012 features an embedded microcontroller-based interface with 128×64 pixel LCD display and tactile membrane keypad. All operational parameters—including actual and setpoint flow (L/min), elapsed time, accumulated volume (standard conditions: 273.15 K, 101.325 kPa), ambient temperature (°C), and pressure (kPa)—are logged internally at user-defined intervals (1–60 min). Data export is supported via USB 2.0 to CSV-formatted files compatible with Microsoft Excel, R, or laboratory information management systems (LIMS). Built-in clock battery backup retains time/date and calibration constants during power loss. No proprietary software installation is required; raw logs contain ISO 8601 timestamps and include checksum-verified entries for chain-of-custody compliance.

Applications

• Regulatory ambient air quality monitoring networks (AAQMN) for continuous PM and gaseous pollutant trend analysis.
• Occupational health and safety assessments in industrial facilities (e.g., cement plants, metal smelters, chemical manufacturing).
• Source apportionment studies requiring co-located gaseous and particulate sampling under identical meteorological conditions.
• Method validation and inter-laboratory comparison exercises aligned with ISO 12103-1 (test dusts) or ISO 11145 (aerosol generation).
• Field research in atmospheric chemistry, aerosol-cloud interaction modeling, and urban pollution dispersion profiling.

FAQ

Does the HA6012 support volumetric correction to standard temperature and pressure (STP)?
Yes—the device automatically calculates and logs sampled volume referenced to 273.15 K and 101.325 kPa using real-time temperature and pressure inputs from integrated sensors.
Can the instrument operate unattended for 7 days?
Yes—its >20,000-hour rated pump service life and non-volatile parameter memory enable reliable deployment over full-week cycles without maintenance or recalibration.
Is the flow calibration traceable to national standards?
Calibration follows JJG 956–2000 procedures; users may perform field verification using a primary-standard dry gas meter or electronic bubble flowmeter traceable to CNAS-accredited labs.
What particulate size fractions can be collected?
When equipped with appropriate inlets (e.g., PM_2.5 sharp-cut cyclones or TSP samplers), it supports TSP, PM₁₀, PM_2.5, PM₁, and respirable dust fractions per ISO/CEN definitions.
Does the HA6012 comply with FDA 21 CFR Part 11?
No—it is not designed for pharmaceutical process monitoring; however, its audit trail functionality (timestamped parameter logs, power-loss recovery) satisfies baseline data integrity requirements for environmental QA/QC workflows under ISO 17025.