IKA RCT digital Magnetic Stirrer

Overview

The IKA RCT digital is a high-performance, benchtop magnetic stirrer engineered for precision mixing and temperature-controlled sample preparation in research laboratories, quality control environments, and pharmaceutical development workflows. Utilizing Couette flow principles—where rotational motion of a magnetic stir bar induces laminar fluid motion—the RCT digital delivers consistent, reproducible homogenization across volumes up to 20 L of aqueous media. Its integrated heating plate operates via resistive heating with real-time thermal feedback, enabling stable temperature maintenance from ambient conditions up to 310 °C. Designed and manufactured in Staufen, Germany, the instrument complies with DIN EN 60529 (IP42 ingress protection), IEC 61010-1 (safety requirements for electrical equipment), and meets essential requirements for CE marking under the EU Low Voltage and EMC Directives. The device is not intended for use in explosion-hazard areas or with volatile organic solvents without additional vapor containment.

Key Features

• Tempered glass top plate combined with anodized aluminum heating surface ensures exceptional chemical resistance against acids, bases, and organic solvents—critical for long-term reliability in corrosive laboratory environments.
• SmartTemp® technology continuously monitors surface temperature and dynamically adjusts power output to prevent thermal runaway; users may define custom safety cutoff limits between 50 °C and 370 °C.
• Dual independent LCD displays show both setpoint and real-time values for speed (50–1500 rpm, ±2% deviation at full load) and plate temperature—with resolution of 1 K for heating control and 0.2 K when paired with the optional ETS-D6 external probe.
• Advanced motor control architecture employs Alnico permanent magnets for high magnetic flux density, enabling robust torque delivery even with large or viscous samples and supporting stir bars from 30 mm to 80 mm in length.
• Programmable operational modes include intermittent stirring, automatic direction reversal (to prevent vortex collapse or sedimentation), and built-in timer functionality for kinetic reaction studies or timed extraction protocols.
• Digital connectivity suite includes RS232 and USB interfaces for remote parameter configuration, data logging, and integration into LIMS or ELN systems—supporting audit-trail-ready operation under GLP/GMP frameworks.

Sample Compatibility & Compliance

The RCT digital accommodates standard laboratory glassware including beakers (up to Ø150 mm), flasks, and crystallization dishes. Its flat, chemically inert surface supports direct placement of containers with flat bottoms and facilitates easy cleaning. The unit is validated for use with water, buffer solutions, ethanol, methanol, and diluted mineral acids (e.g., HCl ≤10%, H₂SO₄ ≤5%). It is not rated for use with halogenated solvents (e.g., chloroform, DCM) or peroxides due to thermal stability limitations of internal components. All firmware updates are distributed through IKA’s official support portal and comply with ISO/IEC 17025 traceability guidelines for instrument calibration records. The device satisfies key clauses of ASTM E2915–22 (Standard Practice for Validation of Thermal Processing Equipment) when operated with external PT1000 or ETS-series sensors.

Software & Data Management

While the RCT digital operates as a standalone instrument, its RS232 and USB ports enable bidirectional communication with host PCs running IKA LabWorld software (v3.2+). This platform allows for scheduled parameter changes, export of time-stamped speed/temperature logs (CSV format), and firmware version verification. All sensor inputs—including external PT1000, ETS-D5, and ETS-D6—are timestamped and stored with metadata (operator ID, method name, session start/end). Audit trails generated meet FDA 21 CFR Part 11 requirements when deployed with appropriate system validation documentation and user access controls. No cloud-based storage or proprietary subscription services are required; local data retention remains fully under end-user control.

Applications

• Buffer and reagent preparation requiring precise thermal stabilization during dissolution (e.g., PBS, Tris-HCl, agarose solutions).
• Accelerated solvent extraction (ASE) protocols where controlled heating and agitation improve analyte recovery rates.
• Pre-analytical sample conditioning prior to HPLC, GC, or ICP-MS analysis—particularly for metal speciation or polymer dissolution studies.
• Cell culture media warming and mixing under sterile hood conditions, leveraging low electromagnetic interference design.
• Reaction monitoring setups integrating with pH meters or conductivity probes via auxiliary analog inputs (when used with compatible IKA accessories).
• Teaching laboratories emphasizing hands-on instruction in thermodynamics, fluid dynamics, and instrumentation validation principles.

FAQ

Does the RCT digital support external temperature feedback for improved accuracy?
Yes—via dedicated ports for PT1000, ETS-D5, or ETS-D6 sensors. When using ETS-D6 with standardized test conditions (500 mL H₂O in 600 mL beaker, 40 mm stir bar, 600 rpm), thermal control accuracy improves to ±0.2 K at 50 °C.
Is firmware upgrade capability available out-of-the-box?
Yes—the device ships with updatable firmware and includes USB/RS232 drivers compatible with Windows 10/11 and macOS 12+. Updates are freely downloadable from IKA’s secure customer portal.
What safety certifications does the instrument hold?
It carries CE marking per Directive 2014/35/EU (LVD) and 2014/30/EU (EMC), conforms to DIN EN 61010-1:2013 for laboratory equipment safety, and meets IP42 protection rating per DIN EN 60529.
Can the RCT digital be integrated into automated lab workflows?
Yes—through ASCII-command protocol over RS232 or USB CDC mode, enabling integration with PLCs, robotic arms, or central lab management systems that support serial command scripting.
What is the warranty coverage for this model?
IKA provides a limited lifetime warranty on the RCT digital for original end-users registered within 30 days of purchase—covering defects in materials and workmanship under normal laboratory use conditions.