DLAB MS-H-ProA 5-inch LCD Digital Programmable Hotplate Magnetic Stirrer

Overview

The DLAB MS-H-ProA is a high-performance, digitally controlled hotplate magnetic stirrer engineered for precision thermal and mechanical agitation in research laboratories, quality control environments, and industrial R&D settings. Utilizing Couette flow principles, it generates consistent rotational motion via a rotating magnetic field beneath a chemically inert ceramic-coated aluminum plate—enabling homogeneous mixing of low- to medium-viscosity liquids without direct mechanical contact. Its integrated heating element delivers stable, programmable surface temperatures from ambient up to 340 °C, while the brushless DC motor ensures silent, spark-free operation with zero maintenance requirements—critical for use in flammable solvent environments or ISO-classified cleanrooms. Designed for reproducibility and long-term stability, the MS-H-ProA meets stringent international safety and electromagnetic compatibility standards (CE, cTUVus, FCC), and complies with DIN/EN 60529 for ingress protection (IP21), ensuring reliable operation under routine laboratory conditions.

Key Features

• 5-inch (135 mm diameter) ceramic-coated aluminum workplate offering exceptional resistance to acids, alkalis, and organic solvents—extending service life and minimizing cross-contamination risk.
• Dual-parameter LCD display showing real-time speed (100–1500 rpm) and plate temperature (ambient to 340 °C) with ±0.1 °C display resolution and ±1 rpm speed accuracy.
• Integrated PT1000 external temperature probe input enabling closed-loop sample temperature monitoring and regulation with ±0.2 °C control precision—supporting applications requiring strict thermal protocol adherence (e.g., polymer dissolution, enzyme kinetics).
• RS232 serial interface for remote parameter setting, real-time data logging, and integration into centralized lab management systems—facilitating 21 CFR Part 11-compliant audit trails when paired with validated software.
• Intelligent thermal safeguards: independent overtemperature cutoff at 420 °C and residual heat warning activation at 50 °C post-shutdown—enhancing operator safety and preventing accidental burns.
• Brushless DC motor architecture delivering consistent torque across the full speed range, eliminating carbon brush wear, electrical noise, and ignition hazards associated with brushed motors.

Sample Compatibility & Compliance

The MS-H-ProA accommodates standard magnetic stirring bars up to 80 mm in length and supports aqueous and organic media volumes up to 20 L (water-equivalent). Its ceramic-coated surface maintains integrity under repeated exposure to HCl, NaOH, acetone, ethanol, and chlorinated solvents—making it suitable for synthesis, extraction, buffer preparation, and catalyst testing workflows. The device conforms to EN 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and EN 61326-1 (EMC for Laboratory Instruments). Its IP21-rated enclosure provides protection against vertically falling solids and limited ingress of moisture—aligning with GLP-compliant facility environmental specifications.

Software & Data Management

Via the RS232 interface, the MS-H-ProA communicates with host PCs using ASCII-based command protocols. Compatible terminal software enables time-stamped logging of speed, setpoint temperature, actual plate temperature, and sensor-derived sample temperature—essential for method validation and regulatory documentation. When deployed in GxP-regulated environments, the system supports configurable user access levels, electronic signatures, and immutable data export (CSV/TXT), meeting foundational requirements for FDA 21 CFR Part 11 compliance when implemented within a validated IT infrastructure.

Applications

• Polymer solution preparation requiring precise temperature ramping and sustained homogenization (e.g., PVA, PVDF, or cellulose derivatives).
• Chemical synthesis involving exothermic or thermally sensitive intermediates where real-time thermal feedback is critical.
• Standardization of calibration standards (e.g., pH buffers, conductivity solutions) under controlled thermal equilibrium.
• Pre-analytical sample conditioning for ICP-MS, HPLC, or titration workflows demanding uniform matrix dispersion prior to analysis.
• Materials science experiments involving nanoparticle dispersion in high-boiling-point solvents (e.g., ethylene glycol, DMF, NMP).

FAQ

Does the MS-H-ProA support external temperature feedback during heating cycles?

Yes—it accepts input from an optional PT1000 probe placed directly in the sample vessel, enabling dynamic adjustment of heater output to maintain target sample temperature rather than plate temperature alone.
Can multiple units be controlled simultaneously via one computer?

Yes—using RS232 daisy-chaining or a USB-to-serial hub with addressable communication protocols, provided host software supports multi-device polling.
Is the ceramic coating resistant to hydrofluoric acid (HF)?

No—while highly resistant to most common laboratory reagents, the ceramic layer is not HF-compatible; alternative PTFE-coated or glass-top hotplates are recommended for HF applications.
What is the maximum allowable ambient humidity for continuous operation?

The unit is rated for operation at ≤80% relative humidity at 40 °C—consistent with standard laboratory HVAC specifications per ISO 14644-1 Class 8 environments.
Does the device retain programmed settings after power cycling?

No—default factory settings resume on reboot; however, all parameters can be reloaded via RS232 commands or manually re-entered using the front-panel controls.