IKA Eurostar 60 Control Overhead Stirrer

Overview

The IKA Eurostar 60 Control is a high-precision overhead stirrer engineered for demanding laboratory applications requiring reproducible mixing, dispersion, and homogenization of low- to high-viscosity samples. Based on brushless DC motor technology, it delivers stable rotational motion under variable load conditions—critical for rheologically complex processes such as polymer dissolution, suspension preparation, or emulsion formation. Its core operational principle relies on closed-loop speed regulation: real-time comparison between setpoint and actual shaft speed enables continuous micro-adjustment via microprocessor control, ensuring ±1 rpm accuracy above 300 rpm and ±1% below—regardless of viscosity shifts up to 50,000 mPa·s. Unlike basic stirrers, the Eurostar 60 Control integrates torque trend monitoring as an indirect viscometric indicator, supporting process development and endpoint detection in batch reactions. Designed and manufactured in Staufen, Germany, it complies with DIN EN 60529 (IP 40) for ingress protection and meets essential safety requirements per EN 61010-1 for laboratory electrical equipment.

Key Features

• Brushless DC motor architecture ensures maintenance-free operation, consistent torque delivery (up to 60 N·cm), and extended service life—eliminating carbon brush wear and associated performance drift.
• Intelligent closed-loop speed control dynamically compensates for load-induced deceleration, maintaining set speed within ±1 rpm (n > 300 rpm) even during viscosity transitions—essential for kinetic studies and scale-up validation.
• TFT graphical display provides simultaneous readout of speed, torque trend, elapsed time, and optional temperature (when PT1000 sensor is connected), enabling at-a-glance process oversight.
• Dual digital interfaces (RS 232 and USB) support bidirectional communication with PC-based software (e.g., LabWorldSoft), allowing remote parameter setting, real-time data logging, and automated protocol execution compliant with GLP documentation standards.
• Integrated safety circuitry triggers immediate shutdown upon motor stall, thermal overload, or abnormal current draw—meeting IEC 61508 functional safety expectations for lab automation systems.
• Ergonomic wireless handheld controller (up to 150 m range, line-of-sight dependent) enables safe operation outside fume hoods or behind shielding, reducing operator exposure during hazardous reactions.

Sample Compatibility & Compliance

The Eurostar 60 Control accommodates a broad spectrum of sample types—from aqueous buffers and organic solvents to non-Newtonian suspensions and thermosensitive formulations—within its 40 L maximum water-equivalent capacity. Its 0.5–10 mm chuck range accepts standard glass, PTFE-coated, or custom impellers (e.g., anchor, paddle, turbine), while the 11 mm hollow shaft permits insertion of temperature probes, pH electrodes, or sampling needles without interrupting agitation. The unit supports external PT1000 sensors (DIN IEC 751 Class A accuracy: ±0.5 K), enabling correlated temperature–viscosity profiling across –10 °C to +350 °C. It conforms to ISO/IEC 17025-relevant instrumentation requirements for calibration traceability and is routinely deployed in environments governed by USP , ASTM E2500, and EU GMP Annex 15 guidelines for equipment qualification.

Software & Data Management

LabWorldSoft software (included) provides full instrument control, time-stamped parameter acquisition (speed, torque, temperature, timer), and export to CSV or Excel formats. Audit trail functionality satisfies FDA 21 CFR Part 11 requirements when configured with user access levels and electronic signatures. All measurement data—including torque trend curves and deviation logs—are timestamped and stored with metadata (operator ID, method name, date/time), facilitating root cause analysis during OOS investigations. Raw data files retain native resolution (1 Hz sampling), supporting post-acquisition filtering and statistical process control (SPC) charting.

Applications

• Chemical synthesis: Controlled addition of reagents under inert atmosphere with constant shear to prevent localized concentration gradients.
• Pharmaceutical formulation: Viscosity-controlled dispersion of active pharmaceutical ingredients (APIs) in semi-solid bases (e.g., ointments, gels) per USP .
• Materials science: Homogenization of nanoparticle suspensions and precursor solutions for sol-gel processing.
• Food & beverage R&D: Reproducible texture development in sauces, dressings, and dairy analogues via torque trend correlation with structural breakdown.
• Environmental testing: Standardized mixing of sediment-water slurries per EPA Method 1669 for bioavailability assessment.

FAQ

Does the Eurostar 60 Control support continuous operation at maximum torque?
Yes—it is rated for 100% duty cycle at full 60 N·cm output, provided ambient temperature remains within 5–40 °C and ventilation is unobstructed.
Can torque data be exported in real time for external process control systems?
Yes, via RS 232 or USB, torque values (in N·cm) are transmitted at configurable intervals (default: 1 Hz) and can interface with PLCs or SCADA platforms using ASCII protocol.
Is calibration of speed and torque traceable to national standards?
Speed calibration is factory-traceable to PTB (Physikalisch-Technische Bundesanstalt); torque calibration requires optional IKA-certified service—recommended annually for GLP/GMP environments.
What is the warranty coverage and service support structure?
Standard 2-year parts-and-labor warranty; extended service plans include preventive maintenance, on-site calibration, and firmware updates aligned with ISO/IEC 17025 technical requirements.