Aerotest Simultan Alpha High-Pressure Compressed Air Quality Analyzer

Overview

The Aerotest Simultan Alpha High-Pressure Compressed Air Quality Analyzer is an engineered field-deployable instrument designed for quantitative verification of breathing-grade compressed air in accordance with internationally recognized occupational health and safety standards—including EN 12021:2014, which defines maximum permissible contaminant concentrations for respiratory applications. Unlike generic air quality monitors, the Simultan Alpha operates on a validated colorimetric detection principle: it draws high-pressure compressed air through calibrated Dräger tubes under precisely regulated flow conditions, enabling real-time, trace-level quantification of critical contaminants—carbon dioxide (CO₂), carbon monoxide (CO), oil aerosol/vapor, and water vapor—without reliance on electrochemical sensors or optical interference. Its dual-flow capability (0.2 L/min for low-concentration analytes such as CO; 4.0 L/min for rapid moisture or oil assessment) ensures methodological fidelity across diverse sampling protocols. The system is explicitly intended for use in fire departments, diving operations, industrial confined-space entry programs, and medical gas supply validation—where failure to meet EN 12021 compliance may constitute a direct regulatory or liability exposure.

Key Features

• High-pressure compatibility: Direct connection to systems operating from 8.5 bar up to 300 bar via standardized G5/8″ or INT threaded interfaces—eliminating need for external pressure-reduction staging in most operational environments.
• Modular, field-optimized architecture: All core components—including pressure regulator, quad-tube flow controller, mechanical timer, tube opener, and calibration-certified Dräger detection tubes—are pre-integrated into a single ruggedized carrying case (300 × 360 × 80 mm; ~3 kg), enabling immediate deployment without assembly.
• EN 12021–compliant measurement protocol: Each analyte is measured independently using manufacturer-validated Dräger tubes (e.g., CO 5/a-p, CO₂ 100/a-p, Oil 10/a-p, H₂O 20/a-p), with results interpreted per EN 12021’s defined concentration thresholds (e.g., CO ≤ 15 ppm, CO₂ ≤ 500 ppm, oil ≤ 0.5 mg/m³, water dew point ≤ −26 °C).
• Dual-flow precision control: Integrated mass-flow regulator maintains ±5% volumetric accuracy at both 0.2 L/min (for high-sensitivity CO detection) and 4.0 L/min (for time-efficient moisture/oil screening), ensuring adherence to Dräger tube manufacturer’s stated flow-dependent accuracy specifications.
• GLP-aligned documentation support: Includes traceable calibration documentation for included regulator and flow controller, plus a printed user manual with step-by-step EN 12021 test sequence guidance, sample log templates, and pass/fail interpretation matrices.

Sample Compatibility & Compliance

The Aerotest Simultan Alpha is purpose-built for gaseous samples drawn directly from high-pressure breathing air compressors, cascade banks, and filling stations. It does not support liquid-phase or particulate-laden streams without upstream filtration per ISO 8573-2. All measurements conform to the sampling methodology requirements of EN 12021:2014 Annex A, including mandatory preconditioning (system purging), ambient temperature stabilization (15–25 °C), and atmospheric pressure correction where applicable. While the analyzer itself carries no CE marking as a standalone medical device, its validated use with Dräger tubes (which hold CE Class I designation per MDR 2017/745 for in vitro diagnostic use) satisfies EU workplace directive 89/391/EEC and national OSHA-equivalent enforcement frameworks. For audit readiness, raw tube readings, operator signatures, date/time stamps, and pressure/temperature annotations are manually recorded per GLP principles—fully compatible with laboratory quality management systems requiring 21 CFR Part 11–compliant data archiving when paired with digital logbook solutions.

Software & Data Management

The Aerotest Simultan Alpha is a hardware-only, analog measurement platform with no embedded firmware, display screen, or digital connectivity. This design choice prioritizes intrinsic safety in explosive atmospheres (ATEX Zone 1 compatibility via passive operation), long-term calibration stability, and immunity to cybersecurity vulnerabilities. All data capture is performed manually using the included mechanical timer and standardized reporting forms. However, the system integrates seamlessly with enterprise QMS platforms: raw measurements (tube discoloration length, flow rate, exposure time) can be entered into validated LIMS or ELN systems (e.g., LabWare, Veeva Vault) supporting structured metadata tagging (test standard, operator ID, equipment ID, environmental conditions). Optional third-party mobile apps—certified for Dräger tube interpretation—provide digital photo logging, automatic unit conversion (ppm ↔ mg/m³), and PDF report generation aligned with ISO/IEC 17025 clause 7.8.2.

Applications

• Fire service breathing apparatus (BA) cylinder filling station certification per NFPA 1989 and EN 12021.
• Commercial diving compressor output validation prior to manifold distribution (IMCA D014 / ADAS Level 3 compliance).
• Pharmaceutical cleanroom compressed air utility qualification (supporting ISO 8573-1 Class 1–2 for particle/oil/water in Grade A/B environments).
• Offshore oil & gas platform breathing air system periodic verification (as required by UK HSE INDG321 and NORSOK Z-014).
• Industrial confined-space entry program air supply audits (OSHA 1910.146 Appendix A, CSA Z1001).

FAQ

Does the Aerotest Simultan Alpha require electrical power or battery operation?
No. It is a fully mechanical, pneumatically driven system requiring only compressed air input—making it intrinsically safe for use in hazardous locations.
Are Dräger detection tubes included with the base unit?
No. The standard configuration (Order No. 65 25 937) excludes detection tubes. Tubes must be ordered separately and are consumables with defined shelf life (typically 2–3 years unopened, verified via lot-specific expiration dates on packaging).
Can the Simultan Alpha measure total hydrocarbons or VOCs beyond oil vapor?
No. It is specifically configured for EN 12021–mandated parameters only. Oil detection uses Dräger tube 10/a-p, calibrated for mineral oil aerosol and vapor—not broad-spectrum VOCs. For full hydrocarbon profiling, GC-based analyzers are required.
Is calibration traceable to national standards?
Yes. The integrated pressure regulator and flow controller are supplied with factory calibration certificates traceable to PTB (Physikalisch-Technische Bundesanstalt, Germany) via DAkkS-accredited calibration laboratories.
What maintenance is required between tests?
No routine maintenance is needed. Users must inspect O-rings and thread seals before each use, replace worn gaskets per Dräger’s technical bulletin TB-ALPHA-002, and verify flow accuracy annually using a NIST-traceable rotameter or bubble meter.