Fuland FDQ-0201 Automated Rotating Coupon Corrosion Tester
| Brand | Fuland (csfriend) |
|---|---|
| Origin | Hunan, China |
| Model | FDQ-0201 |
| Power Supply | 220 V ±10%, 50 Hz ±5% |
| Max. Power Consumption | <3 kW |
| Temperature Range | 20–80 °C |
| Temperature Control Accuracy | ±0.2 °C |
| Rotation Speed | 40–150 rpm ±2 rpm |
| Number of Coupon Stations | 10 |
| Dimensions (L×W×H) | 1000 × 500 × 1050 mm |
| Weight | 90 kg |
Overview
The Fuland FDQ-0201 Automated Rotating Coupon Corrosion Tester is an engineered solution for quantitative evaluation of metallic corrosion behavior under controlled hydrodynamic and thermal conditions. Based on the rotating cylinder electrode (RCE) and rotating coupon methodology—standardized in ASTM G170, ASTM G46, and ISO 15156—it subjects standardized metal coupons to reproducible shear stress, mass transfer rates, and temperature-regulated aqueous or process fluid environments. The instrument implements a cantilevered auto-lift mechanism that enables precise vertical positioning of coupon assemblies without manual intervention, ensuring consistent immersion depth and eliminating operator-induced variability during installation or inspection. Its core architecture integrates independent control loops for temperature, rotational speed, and mechanical lift actuation—each calibrated and validated to meet GLP-compliant laboratory practice requirements.
Key Features
- Cantilever-type automated lift system with repeatable positioning accuracy (<±0.5 mm), facilitating rapid coupon loading/unloading and real-time visual monitoring without opening the test chamber.
- Interlocked gear-and-belt transmission design minimizes mechanical backlash and bearing wear, delivering uniform rotational torque across the full speed range (40–150 rpm) while maintaining acoustic emissions below 55 dB(A) at 1 m distance.
- Modular 10-station coupon holder accommodates standard ASTM G1–G100-compliant specimens (e.g., 25.4 × 12.7 × 2.0 mm carbon steel, stainless steel, or alloy coupons), enabling parallel testing of identical formulations or systematic screening across concentration gradients and inhibitor chemistries.
- Independent PID-controlled heating jacket with dual-sensor feedback (immersion + ambient) ensures thermal stability within ±0.2 °C over extended durations (up to 30 days), critical for long-term corrosion rate extrapolation per NACE TM0169.
- All structural components—including bath vessel, drive shaft, and coupon carriers—are fabricated from corrosion-resistant 316 stainless steel and PTFE-coated hardware to prevent cross-contamination and ensure compatibility with acidic, saline, or sulfide-containing test media.
Sample Compatibility & Compliance
The FDQ-0201 supports standardized metallic coupons per ASTM G1 (preparation), ASTM G31 (immersion testing), and ISO 9223 (corrosivity classification). It is compatible with synthetic brines, refinery process water, CO₂-saturated solutions, H₂S-containing media, and biocide-treated cooling systems. Instrument design adheres to IEC 61000-6-2 (EMC immunity) and IEC 61010-1 (safety requirements for electrical equipment). Data acquisition workflows support traceability per FDA 21 CFR Part 11 when paired with compliant third-party logging software (e.g., LabVIEW-based SCADA or custom Python scripts with audit trail generation).
Software & Data Management
While the FDQ-0201 operates via front-panel digital interface with real-time display of temperature, RPM, and elapsed time, it features RS-485/Modbus RTU output for integration into centralized laboratory data management systems. Optional analog voltage outputs (0–10 V) enable connection to chart recorders or PLC-based supervisory control. All operational parameters—including setpoints, deviations, and fault logs—are timestamped and storable externally. When deployed in regulated environments, users may implement electronic lab notebook (ELN) synchronization protocols to satisfy ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).
Applications
- Corrosion inhibitor screening and dose-response evaluation in oilfield production fluids and downstream refining streams.
- Material selection support for sour service applications (NACE MR0175/ISO 15156 qualification).
- Validation of biocide efficacy against microbiologically influenced corrosion (MIC) under dynamic flow conditions.
- Accelerated corrosion testing for pipeline internal coating integrity assessment.
- Academic research on electrochemical mass transport effects in laminar-to-turbulent transition regimes (Re ≈ 10⁴–10⁵).
FAQ
What standards does the FDQ-0201 comply with for corrosion testing?
It supports methodologies defined in ASTM G170 (guide for rotating cylinder electrodes), ASTM G46 (examination of pitting corrosion), and ISO 15156 (materials for use in H₂S-containing environments).
Can the instrument operate unattended for multi-day tests?
Yes—its thermal stability (±0.2 °C), speed consistency (±2 rpm), and mechanical robustness enable continuous operation up to 720 hours with periodic coupon inspection intervals.
Is the temperature bath compatible with aggressive media such as 3.5% NaCl + 0.5% acetic acid?
The 316SS bath vessel and PTFE-sealed shaft assembly are rated for continuous exposure to such media; optional quartz-glass viewing window upgrades enhance optical monitoring in opaque slurries.
How is data integrity ensured during power interruption?
The controller retains last-set parameters in non-volatile memory and resumes operation upon power restoration; external data loggers with UPS backup are recommended for mission-critical trials.
Does the system support custom coupon geometries beyond ASTM G1 dimensions?
The 10-position holder accepts user-fabricated fixtures with M6 threaded mounting—provided dimensional envelope and balance constraints are observed to maintain rotational stability.
