Fland FDR-0571 Fully Automated Gum Content Tester
| Brand | Fland (csfriend) |
|---|---|
| Model | FDR-0571 |
| Standard Compliance | GB/T 8019 |
| Temperature Range | Ambient to 200 °C |
| Temperature Resolution | 0.01 °C |
| Display | 7-inch Touchscreen (Chinese/English Optional) |
| Weighing Precision | 0.0001 g (Integrated METTLER Toledo Analytical Balance) |
| Power Supply | 220 V, 50 Hz |
| Data Export Interface | Optional RS232/USB for LIMS Integration |
Overview
The Fland FDR-0571 Fully Automated Gum Content Tester is an engineered solution for precise determination of solvent-washed gum content in motor gasoline, aviation gasoline, and other volatile petroleum distillates—per the internationally referenced methodology of GB/T 8019 (equivalent to ASTM D381 and IP 131). The instrument operates on the principle of controlled evaporation under standardized airflow and temperature conditions, followed by gravimetric quantification of non-volatile residue after solvent extraction. Designed specifically for QC laboratories in refineries, fuel testing centers, and third-party certification bodies, the FDR-0571 eliminates manual intervention across heating, sample introduction, drying, cooling, and weighing phases—ensuring procedural consistency, operator safety, and regulatory traceability.
Key Features
- Fully integrated automation: automatic sample introduction via patented cyclic feed mechanism, programmable heating ramp (ambient to 200 °C), isothermal drying, nitrogen-assisted solvent wash, and post-cooling gravimetric analysis—all executed without user interaction.
- High-precision metrology: factory-integrated METTLER TOLEDO analytical balance (0.0001 g resolution) housed within a thermally stabilized weighing chamber; dual-stage draft shielding and anti-vibration mounting minimize environmental interference.
- Intelligent thermal management: FDH liquid-crystal temperature control system with real-time PID feedback, ±0.1 °C stability over full operating range; hardware-based overtemperature cutoff (210 °C threshold) plus software-initiated emergency shutdown.
- Human-centric interface: 7-inch capacitive touchscreen running embedded Linux OS with bilingual (Chinese/English) GUI; intuitive workflow navigation, context-sensitive prompts, and step-by-step operational guidance compliant with GLP documentation requirements.
- Dual-layer system protection: independent hardware watchdog circuitry monitors power integrity, thermal sensors, and motion actuators; software-level fault logging with timestamped event history and automatic recovery from transient anomalies.
- Regulatory-ready architecture: built-in audit trail functionality (user login, method version, parameter changes, result finalization); optional RS232/USB port supports secure data export to LIMS or ERP platforms under 21 CFR Part 11-compliant configuration.
Sample Compatibility & Compliance
The FDR-0571 is validated for use with Class I and II hydrocarbon fuels per GB/T 8019—specifically motor gasoline (including ethanol-blended E10), aviation gasoline (Avgas), and naphtha fractions. Its sample handling module accommodates standard 50 mL glass beakers (ASTM D381-compliant) and supports batch processing of up to 6 samples per cycle. All thermal profiles, airflow rates (≥45 L/min), and dwell times align with mandatory clauses of GB/T 8019–2023, ensuring direct comparability with reference laboratory results. The instrument’s mechanical design meets IEC 61010-1 safety standards for electrical equipment used in laboratory environments, and its weighing subsystem conforms to OIML R76 requirements for Class I analytical balances.
Software & Data Management
The embedded firmware implements a deterministic state-machine controller that enforces strict sequence logic: pre-heating → sample loading → evaporation → solvent rinse → drying → cooling → weighing → report generation. Each test generates a structured XML log containing raw sensor readings (temperature, time, mass), calibration metadata, operator ID, and digital signature. Reports comply with ISO/IEC 17025 documentation templates and include uncertainty estimation per GUM (Guide to the Expression of Uncertainty in Measurement). Optional LIMS integration enables automated result ingestion, electronic signature workflows, and long-term archival in accordance with FDA 21 CFR Part 11 and EU Annex 11 requirements.
Applications
- Quality control of finished gasoline at refinery off-gas points and terminal blending facilities.
- Stability assessment of fuel formulations during R&D—particularly for oxygenated blends and biofuel admixtures.
- Third-party verification for national fuel quality supervision programs (e.g., SAMR inspections).
- Supporting technical compliance with GB 17930, GB 18351, and CNPC enterprise specifications for gum limits (≤5 mg/100 mL).
- Root-cause analysis of deposit formation in fuel systems through correlation with oxidation stability indices (e.g., RVP, olefin content, antioxidant depletion).
FAQ
What standards does the FDR-0571 directly support?
GB/T 8019–2023, with functional equivalence to ASTM D381–2022 and IP 131–2019.
Is external balance calibration required before each test?
No—the integrated METTLER TOLEDO balance performs daily internal calibration using certified weights; external verification is recommended every 30 days per ISO/IEC 17025.
Can the instrument operate unattended overnight?
Yes—hardware watchdog, uninterruptible power monitoring, and auto-recovery logic enable safe multi-cycle operation without supervision.
Does the system support audit trail export for regulatory audits?
Yes—full event logs (including parameter modifications and result approvals) are exportable as encrypted CSV or PDF with digital timestamps and user authentication tags.
What maintenance intervals are specified for the FDH temperature control module?
Annual recalibration of PT100 sensors and PID tuning verification are recommended; no consumables are required in the thermal control subsystem.
