SDL AZ8000 Online Trace Nitrogen Analyzer with Plasma Emission Detector
| Brand | SDL (Orthodyne S.A.) |
|---|---|
| Origin | Belgium |
| Manufacturer | Orthodyne S.A. |
| Type | Imported Industrial Analyzer |
| Model | AZ8000 |
| Pricing | Available Upon Request |
Overview
The SDL AZ8000 Online Trace Nitrogen Analyzer is an industrial-grade, continuous gas-phase analytical instrument engineered for the precise quantification of nitrogen impurities at sub-ppm levels in high-purity inert carrier gases—specifically argon and helium. Developed by Orthodyne S.A., a Belgian manufacturer specializing in plasma-based trace gas detection systems, the AZ8000 employs a proprietary pulsed plasma emission detection (PED) principle. In this method, sample gas is introduced into a controlled radiofrequency (RF) plasma zone where nitrogen molecules undergo excitation and emit characteristic ultraviolet (UV) radiation at 149.3 nm. The intensity of this spectral line is linearly proportional to nitrogen concentration, enabling highly selective and interference-free measurement without cross-sensitivity to oxygen, hydrogen, hydrocarbons, or common background gases. Designed for uninterrupted operation in environmental monitoring stations, semiconductor gas supply networks, and high-purity gas production facilities, the AZ8000 delivers long-term baseline stability and minimal drift—critical for compliance with ISO 8573-1 Class 1 compressed air purity requirements and ASTM D6349 for ultra-high-purity gas certification.
Key Features
- Plasma Emission Detector (PED): Utilizes RF-driven microplasma excitation for selective N₂ detection; eliminates reliance on consumable filaments or radioactive sources.
- Automatic Temperature Compensation: Integrated dual-point thermal sensing circuitry actively corrects signal drift induced by ambient temperature fluctuations between 5–40 °C.
- Low-Dead-Volume Gas Pathway: Optimized stainless-steel capillary routing and zero-dead-volume fittings reduce internal volume to <0.8 mL, enabling T₉₀ response times ≤12 seconds for step changes from 0 to 100 ppb N₂.
- Integrated Pressure Regulation: Built-in precision pressure control maintains constant sample flow (100–200 mL/min) across inlet pressures from 1–10 bar(g), ensuring measurement repeatability independent of upstream gas supply variation.
- Robust Industrial Housing: IP65-rated aluminum enclosure with conformal-coated PCBs and EMI-shielded detector chamber for deployment in demanding plant environments.
Sample Compatibility & Compliance
The AZ8000 is validated for continuous analysis of nitrogen in argon and helium matrices with purity grades ≥99.999% (5.0 grade) and ≥99.9999% (6.0 grade). It meets functional requirements specified in ISO/IEC 17025 for calibration traceability and supports audit-ready documentation per ISO 9001:2015 and ISO 14001:2015 quality management frameworks. When configured with optional data logging and electronic signature modules, the system complies with FDA 21 CFR Part 11 for electronic records and signatures in regulated environmental laboratories. All factory calibrations are performed using NIST-traceable standard gas mixtures certified to ISO 6141, with uncertainty budgets documented per ISO/IEC Guide 98-3 (GUM).
Software & Data Management
The AZ8000 operates with SDL’s proprietary Analytical Control Suite (ACS) v3.2 firmware, accessible via embedded web interface (HTTPS/TLS 1.2) or Modbus TCP/IP integration into distributed control systems (DCS). Real-time concentration values, diagnostic status flags (e.g., plasma ignition success rate, detector lamp aging index), and alarm logs are timestamped with UTC synchronization. Data export supports CSV and XML formats compliant with ASTM E1382 for analytical instrument data interchange. Audit trail functionality records all user-initiated configuration changes—including span adjustment, zero calibration events, and firmware updates—with operator ID, timestamp, and pre-/post-value logging. Optional cloud gateway module enables secure TLS-encrypted forwarding to enterprise SCADA or LIMS platforms.
Applications
- Continuous monitoring of nitrogen contamination in bulk argon used for semiconductor wafer annealing and sputtering processes.
- Verification of helium purity in cryogenic cooling circuits for MRI and particle accelerator facilities.
- Compliance testing of bottled specialty gases supplied to environmental reference laboratories under EN 14181 QA/QC protocols.
- Leak detection support in vacuum gloveboxes and inert-atmosphere reactors via trending of baseline nitrogen rise rates.
- Validation of nitrogen removal efficiency in pressure swing adsorption (PSA) and membrane-based gas purification skids.
FAQ
What detection limit does the AZ8000 achieve for nitrogen in argon?
The instrument achieves a proven limit of detection (LOD) of 5 ppb (v/v) with a signal-to-noise ratio ≥3, verified using certified reference materials traceable to NIST SRM 1605.
Is the AZ8000 suitable for installation in hazardous areas?
No—standard units are rated for non-hazardous locations (Zone 2 / Class I, Division 2). A custom ATEX/IECEx-certified variant is available upon request with flameproof enclosure and intrinsic safety barriers.
Does the system require routine consumables or periodic detector replacement?
No consumables are required. The RF plasma source has a rated lifetime of ≥20,000 operating hours; detector optical components are sealed and maintenance-free under normal operating conditions.
Can the AZ8000 be calibrated using field gas standards?
Yes—calibration may be performed using certified span gases delivered via dedicated calibration port; automatic zeroing is supported using high-purity argon or helium certified to ≤1 ppb N₂.
How is data integrity ensured during power interruptions?
Non-volatile memory retains all calibration coefficients, event logs, and configuration parameters. Upon restart, the system performs self-diagnostic checks and resumes measurement within 90 seconds without manual intervention.
