DLAB MS-M-S4 LED Digital Multi-Channel Magnetic Stirrer
| Brand | DLAB |
|---|---|
| Origin | Beijing, China |
| Model | MS-M-S4 LED |
| Instrument Type | Magnetic Stirrer |
| Max. Stirring Volume (per channel) | 3 L (water) |
| Total Channels | 4 |
| Speed Range | 200–1500 rpm |
| Temperature Control Range | Ambient +5°C to 100°C |
| Heating Plate Material | Ceramic-coated aluminum |
| Plate Diameter | Ø134 mm |
| Stir Bar Max. Length | 40 mm |
| Motor Type | Brushless DC motor |
| Power per Channel | 5 W |
| Input Voltage | 100–240 V, 50/60 Hz |
| Dimensions (L×W×H) | 701 × 265 × 127 mm |
| Weight | 8.7 kg |
| IP Rating | IP21 |
| Operating Environment | 5–40°C, ≤80% RH |
Overview
The DLAB MS-M-S4 LED Digital Multi-Channel Magnetic Stirrer is an engineered solution for laboratories requiring precise, parallel liquid mixing across four independent reaction zones. Based on the principle of magnetic coupling—where a rotating permanent magnet beneath the heated plate induces synchronous rotation of a ferromagnetic stir bar immersed in the sample—the instrument delivers consistent shear input and thermal uniformity without mechanical shaft penetration. This non-contact agitation method eliminates contamination risk, supports sealed-vessel operation, and ensures compatibility with sterile, anaerobic, or volatile solvent environments. Designed for routine QC testing, synthetic chemistry optimization, buffer preparation, and dissolution studies, the MS-M-S4 LED integrates temperature-controlled stirring into a single compact footprint—reducing benchtop congestion while maintaining individual parameter control per channel.
Key Features
- Four fully independent stirring channels—each with dedicated speed control, real-time LCD display, and on/off toggle—enabling true parallel experimentation with high inter-channel reproducibility.
- Ceramic-coated aluminum heating plate (Ø134 mm) offers superior chemical resistance against acids, bases, and organic solvents, extending service life under aggressive lab conditions.
- Brushless DC motors eliminate carbon brush wear, sparking, and electromagnetic interference; delivering silent, maintenance-free operation with >10,000-hour rated lifespan per channel.
- Precise digital speed regulation (200–1500 rpm, ±2% accuracy) with soft-start functionality minimizes vortexing and splashing during initiation, especially critical for low-volume or viscous samples.
- Integrated PTC heating element enables rapid thermal response and stable temperature maintenance from ambient +5°C to 100°C (±1.5°C at 60°C), suitable for enzymatic assays, crystallization trials, and accelerated stability protocols.
- Compact chassis (701 × 265 × 127 mm) houses all four stations without sacrificing accessibility—ideal for fume hoods, glove boxes, or modular lab furniture systems.
Sample Compatibility & Compliance
The MS-M-S4 LED accommodates standard laboratory glassware including beakers (50–1000 mL), Erlenmeyer flasks, round-bottom flasks, and custom reactor vessels up to 3 L per position. Stir bar compatibility extends to PTFE-encapsulated, PTFE+glass, and elliptical designs up to 40 mm in length. The unit conforms to IEC 61010-1:2010 safety standards for electrical equipment used in laboratory environments. Its IP21-rated enclosure protects against vertically falling drips and solid objects >12.5 mm, satisfying general-purpose indoor lab deployment requirements. While not certified for Class I Div 1 hazardous locations, its spark-free motor design meets intrinsic safety expectations for non-explosive organic synthesis workflows.
Software & Data Management
This standalone instrument operates without proprietary software or PC connectivity. All operational parameters—including setpoint speed, actual RPM, current temperature, and elapsed time—are displayed locally via high-contrast LED-backlit LCD per channel. No data logging or remote interface is included; however, the device supports GLP-compliant manual recordkeeping through its stable, drift-free analog control architecture. For labs implementing electronic lab notebooks (ELNs), users may manually transcribe settings into validated templates aligned with 21 CFR Part 11 audit trail requirements. Firmware is not upgradable, ensuring long-term configuration consistency across validation cycles.
Applications
- Parallel screening of catalyst performance across four reaction conditions in homogeneous catalysis studies.
- Simultaneous pH adjustment and homogenization of multi-batch calibration standards for ICP-MS or HPLC analysis.
- Controlled dissolution testing of pharmaceutical tablets using USP Apparatus II (paddle)–compatible vessel configurations.
- Cell culture media pre-warming and gentle mixing prior to inoculation, minimizing thermal shock and shear-induced apoptosis.
- Extraction protocol optimization in environmental labs—e.g., Soxhlet-assisted leaching of heavy metals from soil matrices.
- Preparation of homogeneous polymer solutions or nanoparticle dispersions where batch-to-batch viscosity consistency is critical.
FAQ
Is the MS-M-S4 LED compatible with corrosive reagents such as concentrated HCl or NaOH?
Yes—the ceramic-coated aluminum plate provides robust resistance to common inorganic acids and alkalis when operated within specified temperature limits.
Can this unit be used inside a CO₂ incubator?
No. Its operating ambient range (5–40°C, ≤80% RH) and lack of condensation-resistant sealing make it unsuitable for humidified incubator environments.
Does each channel support independent temperature control?
No. Temperature is regulated uniformly across the entire plate surface; only speed is independently adjustable per channel.
What is the maximum recommended viscosity for reliable stirring at 1500 rpm?
For optimal torque delivery and thermal stability, use is recommended for Newtonian fluids up to 500 mPa·s (e.g., 30% glycerol/water at 25°C).
Are replacement stir bars and power cords available as genuine DLAB accessories?
Yes—DLAB offers OEM-certified stir bars (catalog #SB-40-PTFE), fused safety cords (P/N: CORD-AC-IEC320), and ceramic plate protectors (P/N: PLATE-COV-MSM).
