XA5K Exhaust Gas Absorption System by Sonnen
| Brand | Sonnen |
|---|---|
| Origin | Shanghai, China |
| Model | XA5K |
| Power Supply | 220 V AC, 50/60 Hz |
| Rated Power | 140 W |
| Airflow Capacity | 30 L/min |
| Application | Acidic Gas Scrubbing (e.g., NO₂, SO₂, HCl, HF), Compatible with Sonnen Digestion Systems |
| Construction | Corrosion-Resistant Housing, Removable Absorbent Cartridge Design |
| Compliance | Designed for laboratory-scale fume control per ISO 13857 and ANSI Z9.5 laboratory ventilation guidelines |
Overview
The XA5K Exhaust Gas Absorption System is an engineered laboratory-grade gas scrubbing unit developed by Sonnen for safe, continuous neutralization of acidic and reactive gaseous effluents generated during sample digestion, acid reflux, or high-temperature decomposition processes. Operating on the principle of forced-flow wet scrubbing, the system draws process off-gas through a replaceable absorbent cartridge containing alkaline or chemically selective media—such as sodium hydroxide pellets, sodium carbonate solution, or custom impregnated activated carbon—enabling efficient capture of nitrogen oxides (NOx), sulfur dioxide (SO2), hydrogen chloride (HCl), hydrogen fluoride (HF), and other corrosive vapors. Its compact, benchtop-integrated architecture supports direct coupling with Sonnen’s line of microwave and hot-block digestion systems, ensuring containment integrity without requiring external ductwork or facility exhaust integration. The system complies with fundamental laboratory safety expectations outlined in ISO 13857 (safety distances) and ANSI Z9.5 (laboratory ventilation), and is designed to operate within ambient temperature ranges of 10–35 °C and relative humidity ≤80% non-condensing.
Key Features
- Stable, low-noise diaphragm pump delivering consistent 30 L/min volumetric flow—optimized for balanced residence time and pressure drop across standard absorbent cartridges
- Modular absorbent chamber with quick-release clamping mechanism, enabling tool-free cartridge replacement and minimizing operator exposure during maintenance
- Corrosion-resistant housing constructed from polypropylene (PP) and PVDF-coated internal components, resistant to prolonged contact with concentrated mineral acids and halogenated vapors
- Integrated thermal protection circuitry and current-limiting power supply (220 V AC, 50/60 Hz, 140 W) to prevent overheating during extended operation cycles
- Flow visualization port and optional inline manometer connection for real-time verification of system differential pressure and pump performance
- CE-marked electrical design aligned with IEC 61010-1 for measurement, control, and laboratory equipment safety
Sample Compatibility & Compliance
The XA5K is intended for use with digestate-generated gases arising from open-vessel or closed-vessel acid digestion protocols employing HNO3, HCl, HF, H2SO4, or aqua regia. It accommodates both solid-phase (e.g., NaOH granules, Ca(OH)2 beads) and liquid-phase (e.g., 5–10% NaOH aqueous solution) absorbents, with cartridge volume optimized for ≥8 hours of continuous operation at nominal flow. While not certified to UL or ATEX standards for explosive atmospheres, its design meets general-purpose laboratory containment requirements under GLP-aligned workflows. Documentation includes material compatibility charts for common absorbents and guidance for waste handling per local hazardous waste regulations (e.g., EPA 40 CFR Part 261, EU Waste Framework Directive 2008/98/EC).
Software & Data Management
The XA5K operates as a standalone hardware unit without embedded firmware or digital interface. No proprietary software, cloud connectivity, or data logging capability is included. However, it is fully compatible with third-party lab management systems via analog signal output (0–5 V or 4–20 mA optional upon request) for integration into centralized HVAC or process monitoring platforms. For auditability, users are advised to maintain manual logbooks recording cartridge change dates, absorbent lot numbers, and cumulative runtime—practices consistent with ISO/IEC 17025 clause 7.11 (records of environmental conditions) and FDA 21 CFR Part 11 principles when used in regulated QC environments.
Applications
- Neutralization of acidic fumes during microwave-assisted digestion of environmental soils, biological tissues, and polymer composites
- In-line gas treatment for reflux-based heavy metal leaching procedures (e.g., EPA Method 3050B, ISO 11466)
- Temporary containment solution during method development for volatile analyte recovery (e.g., As, Se, Sb species)
- Pre-scrubbing stage prior to connection with catalytic oxidizers or activated carbon polishing units in multi-stage abatement setups
- Educational demonstrations of gas–liquid mass transfer kinetics and stoichiometric absorption efficiency
FAQ
Can the XA5K be used with hydrofluoric acid (HF) digestion fumes?
Yes—when equipped with calcium hydroxide or specialized fluorosilicate-binding absorbents, provided the cartridge is rated for HF service and replaced before saturation to avoid breakthrough.
Is the system suitable for continuous 24/7 operation?
It is rated for intermittent duty cycles up to 12 hours per day; extended continuous use requires scheduled cartridge inspection every 4–6 hours and ambient temperature monitoring.
Does Sonnen provide absorbent cartridges or only the base unit?
Sonnen supplies OEM-compatible cartridges (part number XA5K-CARTRIDGE-NAOH) and offers custom fill options upon technical specification submission.
What maintenance intervals are recommended?
Pump diaphragm inspection every 6 months; full system leak check and housing integrity assessment prior to each new absorbent installation.
Can the airflow rate be adjusted?
No—fixed-speed pump design ensures stable residence time; variable flow is achievable only via external bypass or inline needle valve (not supplied).
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