DLAB MS-T-S15 15-Channel Magnetic Stirrer

Overview

The DLAB MS-T-S15 is a high-density, multi-channel magnetic stirrer engineered for parallel sample preparation in quality control laboratories, pharmaceutical R&D, and academic research settings where reproducible, time-synchronized agitation across multiple vessels is critical. Unlike conventional single- or dual-position stirrers, the MS-T-S15 integrates 15 independent stirring positions arranged across a large anodized aluminum workplate (460 × 304 mm), enabling simultaneous processing of up to fifteen 400 mL beakers or flasks under precisely controlled rotational conditions. Its operation relies on the principle of magnetic coupling: rotating permanent magnets beneath the non-magnetic plate generate torque on PTFE- or glass-coated stir bars immersed in samples, ensuring contactless, contamination-free mixing without mechanical shafts or seals. The brushless DC motor architecture delivers consistent torque across the full speed range (100–1500 rpm), supporting both low-shear homogenization and vigorous dispersion tasks—particularly valuable in dissolution testing, buffer equilibration, reagent synthesis, and cell culture media preparation.

Key Features

• Three independently programmable control channels—each managing five stirring positions—allow differentiated speed and timer settings per group, facilitating staggered protocols or multi-step reaction monitoring.
• Anodized aluminum workplate provides superior thermal stability, corrosion resistance, and mechanical durability; laser-etched grid markings aid precise vessel placement and alignment.
• Brushless DC motor ensures maintenance-free operation over extended duty cycles (>72 h continuous use), eliminating carbon brush wear and minimizing electromagnetic interference.
• Integrated piezoelectric buzzer delivers audible end-of-timer alerts (three short beeps), enhancing workflow awareness in busy lab environments without requiring visual confirmation.
• IP21-rated enclosure offers protection against vertically falling drips and solid objects >12.5 mm, meeting basic safety requirements for general laboratory deployment.
• LCD display shows real-time speed (rpm) and remaining time for each active channel, with intuitive rotary encoder interface for rapid parameter entry and adjustment.

Sample Compatibility & Compliance

The MS-T-S15 accommodates standard laboratory glassware including 50–400 mL beakers, Erlenmeyer flasks, and cylindrical vials. Optimal performance requires stir bars ≤40 mm in length and compatible with aqueous, organic, and mildly corrosive solutions. While not certified for explosion-proof or sterile applications, its design aligns with general laboratory safety guidelines per IEC 61010-1:2010 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use). The unit supports GLP-compliant documentation when paired with external logging systems; however, it does not include built-in audit trail functionality or 21 CFR Part 11 compliance features.

Software & Data Management

The MS-T-S15 operates as a standalone instrument with no embedded firmware update capability or PC connectivity (e.g., USB, RS-232, or Bluetooth). All operational parameters are set locally via the front-panel interface. For laboratories requiring electronic recordkeeping, integration with third-party data acquisition platforms (e.g., LabArchives, Benchling, or custom SCADA systems) can be achieved using external digital I/O modules or camera-based activity monitoring—though such configurations fall outside DLAB’s official validation scope.

Applications

• High-throughput buffer and standard solution preparation in analytical QC labs.
• Parallel dissolution testing per USP and Ph. Eur. 2.9.3 methodologies (when used with appropriate vessels and temperature control).
• Simultaneous pH adjustment and mixing across multiple titration samples.
• Pre-incubation agitation of immunoassay plates prior to ELISA or lateral flow assay steps.
• Homogenization of nanoparticle suspensions and polymer solutions during formulation development.
• Supporting ASTM D4097 (Standard Test Method for Determining the Stability of Emulsions by Centrifuge) via pre-centrifugation mixing consistency.

FAQ

Can the MS-T-S15 be used with hot plates?
No—the MS-T-S15 is a magnetic stirrer only and does not incorporate heating elements. It must be used with external heating sources if temperature-controlled stirring is required.
Is calibration required or supported?
DLAB does not provide factory calibration certificates for the MS-T-S15. Users may verify speed accuracy using an external tachometer; no user-accessible calibration routine is available.
What stir bar sizes are recommended?
Stir bars between 20 mm and 40 mm in length and 5–8 mm in diameter deliver optimal coupling efficiency across the full 100–1500 rpm range, especially in volumes up to 400 mL.
Does the instrument support remote start/stop or network control?
No—this model lacks communication interfaces and is designed exclusively for manual, local operation.
How is thermal management handled during prolonged use?
The brushless motor and aluminum chassis dissipate heat passively; ambient temperature must remain within 5–40 °C, and airflow around the unit should not be obstructed to maintain rated performance and longevity.