ATSFAAR EA05 High-Temperature Automated Gas Mixing Oxygen Index Tester
| Brand | ATSFAAR |
|---|---|
| Origin | Italy |
| Manufacturer Status | Authorized Distributor |
| Product Origin | Imported |
| Model | EA05 |
| Pricing | Upon Request |
Overview
The ATSFAAR EA05 High-Temperature Automated Gas Mixing Oxygen Index Tester is a precision-engineered instrument designed for determining the Limiting Oxygen Index (LOI) of solid materials in accordance with ISO 4589-2, ASTM D2863, and GB/T 2406.2 standards. Unlike conventional oxygen index testers relying on manual three-valve gas flow adjustment, the EA05 implements a single-axis automated gas mixing system that dynamically balances O₂ and N₂ mass flows to maintain a constant total volumetric flow rate—typically 40 ± 2 mL/min—at any selected oxygen concentration (0–100% vol, resolution 0.1%). This closed-loop control architecture eliminates iterative manual recalibration, ensuring reproducible gas composition delivery across repeated test cycles. The system employs a high-stability quartz-encapsulated heating element operating up to 800 °C, fully isolated from operator contact and external contamination. Temperature regulation is executed via a dedicated German digital PID controller with ±0.5 °C stability over 24-hour continuous operation, enabling reliable LOI measurement under elevated thermal conditions—critical for evaluating thermally stabilized polymers, flame-retardant composites, and high-performance insulation materials.
Key Features
- Single-actuator automated gas mixing system: replaces traditional triple independent flow valves with one electro-pneumatic proportional valve, reducing setup time by >70% and minimizing human-induced variability.
- Integrated mass-flow-controlled O₂/N₂ blending: achieves ±0.1% vol oxygen concentration accuracy across full 0–100% range, traceable to NIST-calibrated flow sensors.
- Quartz-enclosed high-temperature heating assembly: hermetically sealed resistive heater housed within fused silica tube; surface temperature inaccessible during operation, eliminating burn risk and oxidation degradation.
- Digital oxygen concentration display: real-time LED readout with 0.1% resolution, auto-zeroed at atmospheric air baseline prior to each test sequence.
- Propane ignition module with adjustable flame height: compliant with ISO 4589-2 Annex A, delivering consistent 10–20 mm flame length at standardized 10 mm/s vertical travel speed.
- Universal sample holder: accommodates rigid rods (80 × 10 × 4 mm), flexible films (150 × 10 mm), and foamed specimens (max. 100 mm height) without mechanical adaptation.
Sample Compatibility & Compliance
The EA05 supports testing of diverse polymeric, composite, and inorganic materials—including thermoplastics (e.g., PE, PP, PC), thermosets (epoxy, phenolic), elastomers, textiles, and mineral-filled composites. All hardware components comply with CE Machinery Directive 2006/42/EC and EMC Directive 2014/30/EU. Gas delivery subsystems meet ISO 8573-1 Class 2 purity requirements for compressed gases. Calibration protocols align with ISO/IEC 17025:2017 accreditation criteria, supporting GLP/GMP laboratory validation. Instrument firmware includes audit-trail logging per FDA 21 CFR Part 11 requirements for electronic records and signatures.
Software & Data Management
While the EA05 operates as a stand-alone benchtop instrument with embedded microcontroller logic, optional USB-C interface enables connection to Windows-based ATSFAAR LOI Suite v3.2 software. This application provides automated LOI calculation (per ISO 4589-2 Section 8), statistical trending of sequential measurements (mean, SD, CV%), export to CSV/PDF, and customizable report templates compliant with internal QA documentation standards. All test parameters—including O₂ setpoint, ambient T/RH, ignition timestamp, burn duration, and post-test residue mass—are timestamped and stored locally in non-volatile memory for ≥10,000 test cycles.
Applications
- Flame retardancy qualification of aerospace interior panels per FAR 25.853(a)
- LOI benchmarking of halogen-free cable jacketing compounds (IEC 60332-1)
- R&D screening of nanocomposite polymer blends for improved thermal oxidative stability
- Quality control of fire-rated building insulation boards (EN 13501-1 classification support)
- Regulatory submission data generation for UL 94 V-0/V-2 comparative analysis
- High-temperature LOI profiling of ceramic matrix composites (CMCs) above 500 °C
FAQ
Does the EA05 require external calibration gas cylinders for O₂ sensor verification?
No. The integrated zirconia-based oxygen sensor is factory-calibrated against certified reference gas mixtures (NIST-traceable 21.0% O₂ in N₂) and features automatic air-zero compensation before each test session.
Can the instrument operate continuously at 750 °C for extended durations?
Yes. The quartz-encapsulated heating element and dual-stage thermal shielding enable stable 750 °C operation for ≥4 hours without performance drift or component fatigue.
Is the propane ignition system compatible with alternative fuel sources?
No. The system is engineered exclusively for commercial-grade propane (≥95% purity); substitution with butane or natural gas invalidates compliance with ISO 4589-2 Annex A and voids calibration validity.
What documentation is provided for IQ/OQ validation?
A complete validation package—including Factory Acceptance Test (FAT) report, metrological traceability certificates for all sensors, and user-defined OQ protocol templates—is supplied with each unit.
How does the automated mixing system handle gas supply pressure fluctuations?
An upstream pressure regulator (set to 3.5 bar ±0.2 bar) and integrated buffer volume dampen inlet pressure variance; the closed-loop flow controller maintains target O₂ concentration within ±0.1% despite ±10% inlet pressure variation.
