Froilabo DC300/DC300-4S Digital Magnetic Stirring Hotplate

Overview

The Froilabo DC300 and DC300-4S are high-performance digital magnetic stirring hotplates engineered for precision thermal and mechanical control in demanding laboratory environments. These instruments operate on the principle of electromagnetic induction to rotate magnetic stir bars within vessels while simultaneously delivering uniform, programmable resistive heating across a large ceramic surface. Designed for reproducible sample preparation, dissolution testing, reagent synthesis, and temperature-dependent reaction monitoring, the DC300 series integrates closed-loop PID temperature regulation with real-time digital speed feedback—ensuring stable thermal profiles and consistent agitation kinetics across extended operation cycles. The system is particularly suited for applications requiring strict adherence to method-defined parameters, including USP dissolution, ASTM E2913-22 thermal stability protocols, and GLP-compliant batch documentation workflows.

Key Features

• Dual independent digital control loops for temperature (±0.1 °C accuracy) and stirring speed (±1 rpm resolution), displayed on a high-contrast LED interface
• “FACT” (Flat Advanced Ceramic Technology) heating plate offering exceptional thermal homogeneity, chemical resistance, and rapid heat-up/cool-down response
• Four-position configuration (DC300-4S) enables parallel processing of up to four vessels with fully independent speed and timer settings per station
• Programmable dual-function timer: assignable separately to heating ramp, hold duration, or stirring duration—with auto-shutdown upon completion
• Integrated emergency stop button providing immediate motor cutoff and heater deactivation when vessel removal is required
• Overtemperature safety cutoff and visual alarm (flashing LED) triggered at ≥60 °C surface temperature during standby or idle states
• Rugged aluminum alloy chassis with reinforced mounting points for integration into fume hoods or automated lab platforms

Sample Compatibility & Compliance

The DC300 series accommodates standard laboratory glassware including Erlenmeyer flasks (up to 5 L each), round-bottom flasks, beakers, and jacketed reactors—compatible with borosilicate glass, PTFE-coated stir bars, and chemically resistant vessel liners. All models comply with IEC 61010-1:2010 safety standards for electrical equipment used in laboratory environments. The digital control architecture supports audit-ready operation under FDA 21 CFR Part 11 requirements when paired with Froilabo’s optional LabControl™ software suite, enabling electronic signatures, user access levels, and immutable event logging for GMP/GLP validation. Calibration certificates traceable to NIST standards are available upon request.

Software & Data Management

While standalone operation requires no external software, the DC300 series supports RS-232 and optional USB-to-serial connectivity for integration with LIMS or custom SCADA systems. Froilabo LabControl™ (v4.2+) provides remote parameter setting, real-time data streaming (temperature, RPM, elapsed time), and CSV export of time-stamped operational logs—including start/stop events, alarm triggers, and calibration history. Data files include ISO 8601 timestamps and instrument serial identifiers to support ALCOA+ data integrity principles. Firmware updates are delivered via signed binary packages to ensure cryptographic verification prior to installation.

Applications

• Controlled-temperature synthesis of metal-organic frameworks (MOFs) and nanoparticle suspensions
• Dissolution testing of pharmaceutical tablets per USP Chapter and
• Preparation of homogeneous polymer solutions for rheological characterization
• pH adjustment and buffer equilibration in cell culture media development
• Accelerated stability studies under ISO 16820-defined thermal stress conditions
• Extraction protocols for environmental samples (e.g., EPA Method 3540C Soxhlet alternatives)

FAQ

What safety certifications does the DC300 series hold?
The unit complies with IEC 61010-1:2010 (Edition 3.1) for laboratory electrical equipment, including protection against electric shock, mechanical hazards, and abnormal temperature rise.
Can the DC300-4S operate all four positions at different speeds and temperatures simultaneously?
Yes—each of the four stations features independent digital control of stirring speed and timer; however, temperature is regulated uniformly across the entire ceramic plate surface.
Is calibration traceable to national standards?
Factory calibration uses NIST-traceable reference thermometers and tachometers; full calibration reports with uncertainty budgets are available as an add-on service.
What maintenance is required for long-term reliability?
No routine maintenance is needed beyond periodic cleaning of the ceramic surface with ethanol or isopropanol; internal components are sealed and non-user-serviceable.
Does the device support external temperature probe input for vessel-content monitoring?
No—the DC300 series regulates only surface temperature; for solution-phase temperature feedback, a separate PT100 probe and compatible controller must be used in tandem.