SKC Airchek XR5000 Microprocessor-Controlled Air Sampler

Overview

The SKC Airchek XR5000 is a microprocessor-controlled, dual-range air sampling pump engineered for precision and reliability in occupational hygiene and environmental monitoring applications. Designed according to the principles of constant-flow volumetric sampling, it maintains stable aspiration rates across variable filter media resistances and ambient conditions—critical for compliant collection of airborne contaminants including vapors, gases, aerosols, and respirable or inhalable particulates. Its embedded microcontroller continuously monitors motor performance, pressure differentials, and thermal load to dynamically adjust pump output, ensuring adherence to NIOSH and OSHA sampling protocols. Unlike analog predecessors, the XR5000 integrates real-time flow compensation logic that accounts for temperature-induced viscosity changes in air, thereby minimizing systematic drift during extended field deployments.

Key Features

• Dual-range operation supports low-flow vapor sampling (5–500 mL/min) and high-flow particulate collection (up to 5000 mL/min), eliminating the need for multiple dedicated pumps.
• Automatic backpressure compensation enables consistent flow delivery even when using dense sorbent tubes (e.g., charcoal or silica gel) or membrane filters under elevated resistance—validated per ASTM D7520 and ISO 16000-2.
• Three interchangeable battery options: high-capacity rechargeable Li-ion (for multi-shift continuous operation), standard Li-ion (balanced duty cycle), and disposable AA alkaline (rapid deployment in emergency response scenarios).
• Intuitive 3-button interface with high-contrast LCD and bright blue LED status indicators allows glove-compatible operation in low-light or hazardous environments.
• Real-time volumetric calculation updates continuously based on measured flow rate and elapsed time, supporting accurate volume normalization required by EPA Method TO-17, NIOSH Method 1501, and ISO 16017-1.
• Programmable sampling duration from 1 to 9999 minutes with automatic rollover logic ensures uninterrupted long-term monitoring without manual intervention.
• Fault-tolerant architecture includes self-diagnostic flow verification and five-cycle auto-recovery sequence upon detection of flow deviation exceeding ±5%, enhancing data integrity in unattended deployments.

Sample Compatibility & Compliance

The Airchek XR5000 is compatible with all standard 37-mm and 25-mm cassette configurations, sorbent tubes (e.g., SKC Universal, Anasorb®, Carbograph™), impingers, and cyclones used in industrial hygiene sampling. It meets mechanical and electrical safety requirements per IEC 61010-1 and carries CE marking for use in EU occupational settings. Its flow control algorithm complies with the performance criteria outlined in ISO 8502-10 (air sampling pumps) and supports audit-ready documentation for GLP and GMP-regulated laboratories. When paired with SKC’s certified calibration adapters and traceable flow calibrators (e.g., Defender 510), the system satisfies calibration traceability requirements under ISO/IEC 17025 and FDA 21 CFR Part 11 when used with validated software workflows.

Software & Data Management

While the XR5000 operates as a standalone instrument, its time-stamped sampling logs—including start/stop times, total elapsed duration, final calculated volume, and fault event records—are accessible via the front-panel display. For integrated data management, SKC recommends pairing the pump with the AirChex® DataLink software (v3.2+) and optional Bluetooth-enabled docking station. This configuration enables automated export of CSV-formatted sampling reports, synchronization with LIMS platforms, and generation of audit trails with user authentication, electronic signatures, and change history—all aligned with ALCOA+ (Attributable, Legible, Contemporaneous, Original, Accurate) data integrity principles.

Applications

• NIOSH/OSHA-compliant personal and area sampling for VOCs, aldehydes, metals, and organic acids using sorbent tubes or filters.
• Respirable crystalline silica (RCS) monitoring per OSHA Silica Standard 29 CFR 1926.1153 using cyclone-based collection systems.
• Indoor air quality (IAQ) assessments in commercial buildings, schools, and healthcare facilities per ASHRAE Standard 62.1.
• Emergency response air screening during chemical spills, fire investigations, or hazmat incidents.
• Validation of local exhaust ventilation (LEV) system performance through tracer gas dilution studies.
• Baseline exposure assessment in pharmaceutical manufacturing cleanrooms and semiconductor fabrication facilities.

FAQ

What calibration standards are recommended for the Airchek XR5000?
SKC recommends annual calibration using a NIST-traceable primary standard (e.g., dry calibrator or bubble meter) and verification with a secondary calibrator such as the Defender 510 or Bios International Series 400.
Can the XR5000 be used for respirable dust sampling with a cyclone?
Yes—when configured with a 10-mm nylon cyclone (e.g., SKC 225-365) and operated within its 1.7–2.5 L/min range, it meets the flow tolerance requirements of ISO 7708 and EN 481 for respirable fraction separation.
Is the pump suitable for outdoor use in extreme temperatures?
It is rated for operation between 0°C and 45°C; prolonged exposure below 0°C may reduce Li-ion battery capacity and affect LCD responsiveness—use insulated carrying cases or thermal enclosures in sub-zero conditions.
How does the XR5000 handle filter breakthrough during long-duration sampling?
The pump itself does not detect chemical breakthrough; users must select appropriate sorbent media and adhere to validated sampling durations per NIOSH Manual of Analytical Methods (NMAM) chapter guidelines.
Does the device support remote monitoring or IoT integration?
No native wireless telemetry is built-in; however, third-party Bluetooth adapters and custom API integrations (via RS-232 or USB-C serial emulation) enable limited telemetry in controlled validation environments.