VELP AREX-6 Connect PRO Advanced Heating Magnetic Stirrer

Overview

The VELP AREX-6 Connect PRO is an advanced, cloud-connected heating magnetic stirrer engineered for precision thermal and mechanical control in demanding laboratory environments. It operates on the principle of magnetic coupling—where a rotating permanent magnet beneath the heated plate induces rotational motion in a magnetic stir bar immersed in the sample—enabling contactless mixing without mechanical shafts or seals. Integrated resistive heating elements combined with a high-resolution Pt100 temperature probe and adaptive PID algorithm deliver stable, overshoot-minimized thermal regulation from ambient up to 370 °C. Designed for reproducible reaction setup, long-duration unattended operation, and full traceability, the AREX-6 Connect PRO bridges classical benchtop functionality with Industry 4.0-ready connectivity—supporting GLP-compliant workflows through secure cloud data logging, remote monitoring, and audit-ready event histories.

Key Features

• Cloud-Enabled Remote Operation: Fully integrated with the VELP Ermes platform for real-time instrument status monitoring, parameter adjustment, and emergency stop execution from any web-enabled device—eliminating manual intervention during routine or overnight protocols.
• Dual Independent Thermal Protection: Two redundant safety circuits automatically deactivate heating if surface or medium temperature exceeds user-defined thresholds—ensuring compliance with IEC 61010-1 and reducing fire or thermal runaway risk.
• Pt100-Driven Precision Temperature Control: Supports two operational modes—“Fast” (optimized for rapid ramp-up with controlled overshoot) and “Fine” (prioritizing minimal deviation at setpoint)—both calibrated against traceable Pt100 reference standards.
• SpeedServo™ Torque Compensation: Brushless DC motor maintains consistent rotational speed across viscosity fluctuations, delivering ±1 rpm stability within the 40–1500 rpm range—even under load changes typical in polymer solutions or suspension-based syntheses.
• CeAlTop™ Ceramic-Coated Aluminum Plate: 135 mm diameter surface combines rapid thermal conductivity (aluminum substrate) with chemical resistance and scratch tolerance (ceramic top layer), validated per ISO 8502-3 for lab-grade corrosion resilience.
• Intelligent Human-Machine Interface: Backlit monochrome LED display with intuitive iconography (probe connection status, heating activation, setpoint, timer, auto-reversal); dual tactile rotary knobs with press-to-confirm logic prevent accidental setting changes; 3-second central button press enables hardware lockout.

Sample Compatibility & Compliance

The AREX-6 Connect PRO accommodates vessels ranging from standard 25 mL beakers to 20 L jacketed reactors—compatible with glass, stainless steel, and PTFE-lined containers. Its IP42-rated enclosure ensures protection against solid objects >1 mm and vertically falling water droplets, meeting environmental robustness requirements for shared core facilities and QC labs. The system complies with EN 61326-1 (EMC for laboratory equipment), EN 61010-1 (safety), and supports FDA 21 CFR Part 11 readiness when paired with Ermes-managed electronic signatures and audit trails. Residual heat indication (>50 °C) and external probe immersion detection fulfill ISO/IEC 17025 clause 6.4.7 regarding hazard mitigation in thermal instrumentation.

Software & Data Management

Instrument data—including temperature profiles, speed logs, timer events, alarm triggers, and firmware version history—are encrypted and synchronized to the VELP Ermes cloud infrastructure using TLS 1.2+ protocols. Users access time-stamped reports, export CSV/Excel datasets, and configure role-based permissions for multi-user laboratories. Over-the-air (OTA) updates ensure continuous alignment with evolving regulatory expectations (e.g., updated validation templates for GMP Annex 11). All session records include immutable timestamps, operator IDs, and change justification fields—facilitating internal audits and external inspections per ISO/IEC 17025 and GLP principles.

Applications

This stirrer serves critical roles in synthetic chemistry (Grignard reactions, esterifications), materials science (nanoparticle dispersion, sol-gel processing), pharmaceutical development (dissolution testing, buffer preparation), and environmental analysis (extraction protocols, COD digestion). Its wide thermal range supports silicone oil baths (up to 300 °C) and direct plate heating for low-boiling solvents. Programmable direction reversal enhances mass transfer in heterogeneous catalysis, while precise dwell-time control enables kinetic studies requiring defined thermal hold periods.

FAQ

Does the AREX-6 Connect PRO support external temperature probes beyond the included Pt100?
Yes—it accepts third-party Pt100 sensors compliant with DIN EN 60751 Class A tolerances, provided they use standard 4-wire configuration and are calibrated against NIST-traceable references.
Can multiple instruments be managed simultaneously via Ermes?
Yes—VELP Ermes supports fleet-wide monitoring and batch configuration deployment across unlimited connected devices within a single organizational account.
Is offline operation possible if internet connectivity is lost?
All local functions—including stirring, heating, timing, and safety interlocks—remain fully operational; only cloud synchronization and remote access are suspended until connectivity resumes.
What documentation is provided for IQ/OQ validation?
VELP supplies a comprehensive Validation Support Package including URS template, FAT/SAT checklists, calibration certificates for Pt100 and speed sensor, and electronic log files compatible with LabVantage and STARLIMS integrations.
How frequently are firmware updates released?
Critical security patches are deployed immediately; feature enhancements follow biannual release cycles, with advance notification via Ermes dashboard alerts and email notifications to registered administrators.