IKA RCT basic Heating Magnetic Stirrer with Ceramic-Coated Aluminum Plate

Overview

The IKA RCT basic is a high-integrity heating magnetic stirrer engineered for precision, reproducibility, and laboratory-grade safety in demanding chemical, pharmaceutical, and materials science workflows. It operates on the principle of contactless magnetic coupling—using a rotating permanent magnet beneath a thermally stable ceramic-coated aluminum plate to drive PTFE- or glass-coated stir bars within vessels. Unlike conventional stirrers with brushed motors, its brushless DC motor delivers consistent torque across the full speed range (50–1500 rpm), minimal electromagnetic interference, and extended service life without carbon dust accumulation. The integrated 800 W heating system enables rapid thermal ramping and precise plate temperature control up to 310°C, while dual independent thermal sensors—each serving distinct safety-critical functions—comply with EN IEC 61010-2-010 for Class II laboratory equipment.

Key Features

• Dual-Independent Thermal Safety Circuitry: Two physically separate temperature sensors monitor both plate surface and user-defined safety thresholds; one regulates setpoint temperature, the other enforces a mechanically adjustable safety limit (50–360°C), fully decoupled from operational settings.
• Delta-T Monitoring & Adaptive Shutdown: Detects deviations between set and measured media temperature; triggers automatic heating deactivation when ΔT exceeds user-defined limits—while maintaining stirring to prevent bumping or localized superheating.
• Abnormal Thermal Event Detection: Identifies sudden media temperature drops (e.g., vessel fracture or solvent evaporation) and uncharacteristic absence of thermal rise upon startup—both initiating fail-safe heating cutoff.
• Multi-Sensor Flexibility: Supports simultaneous connection of up to two temperature probes—including wired PT1000, ETS-D5, ETS-D7, or wireless PT sensors—for differential monitoring of bath, sample, or jacket temperature.
• IP54-Rated Enclosure & Corrosion-Resistant Construction: Fully sealed die-cast aluminum housing with ceramic-coated Ø135 mm plate resists aggressive vapors, condensates, and mechanical impact—meeting long-term durability requirements in GLP/GMP environments.
• Intelligent Interoperability: Communicates directly with IKA overhead stirrers via analog/digital interface or Bluetooth; automatically disables heating if stirring speed falls below configurable threshold—enabling system-level thermal safety.
• Fail-Operational Stirring: Maintains rotational motion during error states or safety shutdowns to ensure continuous mixing, mitigating risks of boiling delay, thermal stratification, or explosive vapor release.

Sample Compatibility & Compliance

The RCT basic accommodates standard laboratory glassware (round-bottom flasks, beakers, reaction vessels) with stir bar lengths from 20 mm to 80 mm. Its ceramic-coated aluminum plate provides uniform heat distribution and excellent chemical resistance—suitable for aqueous, organic, and mildly corrosive media. The device conforms to EN IEC 61010-1 and EN IEC 61010-2-010 for electrical safety in laboratory use, and supports traceable temperature validation through calibrated PT1000 sensors compliant with DIN EN 60751 Class A. When used with ETS-D5 or ETS-D7 probes, it satisfies requirements for temperature-controlled reaction monitoring under ISO/IEC 17025 and FDA 21 CFR Part 11-compliant workflows (when paired with IKA Lab Assistant and audit-trail-enabled software).

Software & Data Management

While the RCT basic operates as a standalone instrument with intuitive LED-based local control, expanded functionality—including programmable sequences, reverse rotation, intermittent stirring, pH logging (via ETS-D7), and multi-sensor synchronization—is enabled through the IKA HUB interface module. Real-time parameter logging, remote status monitoring, and centralized alarm management are supported via IKA Lab Assistant (iOS/Android), which provides encrypted Bluetooth LE communication and optional cloud-synced data export (CSV/Excel). All temperature and speed events—including safety interventions—are timestamped and stored locally for post-experiment forensic review, supporting GLP documentation and internal audit readiness.

Applications

• Controlled synthesis of polymers, nanoparticles, and metal-organic frameworks requiring stable thermal profiles and homogeneous mixing.
• Standardization of dissolution testing per USP and pharmacopeial methods where plate temperature accuracy and repeatability are critical.
• Pretreatment of environmental samples (e.g., soil extractions, wastewater digestion) under elevated temperature and extended duration.
• Calibration and validation of reference temperature baths using traceable PT1000 sensors.
• Teaching laboratories requiring robust, low-maintenance instrumentation compliant with institutional safety policies and insurance requirements.

FAQ

Does the RCT basic support external temperature feedback control?
Yes—it accepts input from PT1000, ETS-D5, ETS-D7, and wireless PT sensors to regulate heating based on actual media temperature rather than plate surface temperature.
Can safety limits be password-protected?
Yes—access to safety parameter configuration requires entry into protected operating mode, preventing unauthorized modification during routine operation.
Is the heating plate compatible with aggressive solvents like chlorinated hydrocarbons?
The ceramic coating provides broad chemical resistance; however, prolonged exposure to strong oxidizers or HF-containing solutions is not recommended—consult IKA’s chemical compatibility guide for specific recommendations.
What is the maximum allowable ambient temperature for continuous operation?
The unit is rated for continuous use at ambient temperatures up to 40°C and relative humidity ≤80% non-condensing.
How does the Delta-T safety function differ from conventional overtemperature cutoffs?
Unlike fixed-point cutoffs, Delta-T continuously compares setpoint and measured media temperature; it triggers only when deviation exceeds a user-defined threshold—allowing safe operation near critical reaction temperatures without nuisance shutdowns.