Non-Heating Magnetic Stirrer (DLAB MS-S)

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The Non-Heating Magnetic Stirrer (DLAB MS-S) is a digital, economical, and reliable magnetic stirrer engineered for efficient, reproducible mixing in clinical diagnostic laboratories, pharmaceutical quality control, food and drug analysis, water quality monitoring, and general research. Designed for a wide range of general laboratory mixing applications without the need for heating, this stirrer offers a maximum stirring capacity of up to 20 liters, making it ideal for routine solution preparation and sample mixing.
Every Non-Heating Magnetic Stirrer (DLAB MS-S) features a maintenance-free, spark-free brushless DC motor and a powerful magnetic drive, delivering consistent stirring performance from 100 to 1500 rpm. The digital LCD display with 1 rpm resolution allows for precise speed setting and monitoring, ensuring repeatable stirring conditions across experiments. The ceramic-coated or stainless steel work plate provides excellent chemical resistance for long-lasting durability against aggressive reagents. The ultra-silent and vibration-free design ensures comfortable, quiet operation.
Key user-focused features include digital speed control for precise, reproducible agitation; an optional timer (1–120 minutes) for unattended operation on select models; a compact footprint ideal for crowded benchtops; and robust construction with IP21 protection against spills and particles. The chemical-resistant top plate and spark-free motor make it safe for use in environments where flammable solvents may be present.
For the clinical laboratory scientist, water quality analyst, and pharmaceutical quality control technician, the Non-Heating Magnetic Stirrer (DLAB MS-S) delivers the simple, reliable, and chemical-resistant stirring required for preparing chemical solutions, mixing reagents, and homogenizing samples. For the patient and the public, the consistent and accurate mixing of reagents and samples directly supports reliable diagnostic test results, safe drinking water monitoring, and the quality and safety of pharmaceutical and food products.
Description

Non-Heating Magnetic Stirrer (DLAB MS-S)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. General Solution Mixing and Reagent Preparation in Clinical Laboratories
Primary Use: Provides a non-heating, digital magnetic stirrer with a ceramic-coated or stainless steel work plate and a maintenance-free brushless DC motor, used for the efficient and homogeneous mixing of aqueous solutions, buffers, reagents, and clinical laboratory preparations, with a maximum stirring capacity of 20 liters and a speed range of 100 to 1500 rpm.
How it helps: For the clinical laboratory scientist and medical technologist, the MS-S’s maintenance-free brushless DC motor and powerful magnetic drive deliver consistent, reliable stirring performance ideal for preparing common laboratory reagents, buffers, and diluents. The digital display with 1 rpm resolution allows precise speed selection from gentle mixing to vigorous agitation, accommodating different liquid viscosities. The ultra-silent and vibration-free design minimizes distractions during critical work. For the patient, the consistent and reproducible mixing of reagents ensures the accuracy of diagnostic test results, supporting reliable clinical decision-making.
2. Sample Preparation for Water Quality and Environmental Monitoring
Primary Use: An ideal tool for general laboratories performing water quality analysis and environmental monitoring, the MS-S is used for mixing samples and reagents for key tests, such as Chemical Oxygen Demand (COD), heavy metal analysis, and total suspended solids measurement, and for preparing liquid cultures for microbiological analysis of environmental samples.
How it helps: For the environmental laboratory technician, the MS-S’s digital control allows precise, repeatable stirring conditions across multiple samples, ensuring consistent reagent mixing and sample homogeneity. The ceramic-coated or stainless steel work plate provides excellent chemical resistance, ensuring durability when exposed to various water quality testing reagents. For the public, reliable water quality analysis directly supports community health by ensuring safe drinking water and monitoring environmental pollution.
3. Dissolving Solids and Preparing Solutions for Drug and Food Analysis
Primary Use: Used for the efficient dissolution of solids and the preparation of standard solutions, buffers, and mobile phases in pharmaceutical and food analysis laboratories, ensuring homogeneity for quality control testing such as HPLC and UV-Vis spectrophotometry.
How it helps: For the pharmaceutical and food safety quality control analyst, the Non-Heating Magnetic Stirrer (DLAB MS-S) robust stirring action ensures that powders, tablets, or other solid samples are completely dissolved and mixed into solution before analysis. The brushless DC motor is maintenance-free, and the chemical-resistant top plate provides excellent durability against aggressive solvents and acids. For the pharmaceutical patient and consumer, accurate sample preparation is critical for verifying the potency of drugs and ensuring the safety and quality of the food supply.
4. Liquid Culture Mixing and Preparation in Clinical Microbiology
Primary Use: Enables the gentle yet thorough mixing of liquid cell cultures, microbial broths, and growth media in clinical microbiology laboratories to maintain a uniform cell suspension and optimize growth conditions, without the risk of heat damage to sensitive biological samples.
How it helps: For the clinical microbiology technologist, the MS-S’s digital speed control allows for precise agitation, ensuring that bacterial and yeast cultures are evenly oxygenated and mixed without damaging the cells. The brushless motor produces no sparks, making it safer for use in environments where flammable solvents or volatile reagents may be present. For the patient, the careful preparation of culture media and the incubation of samples are essential steps in the accurate identification of pathogenic microorganisms, leading to timely and appropriate antibiotic therapy.

SECONDARY & SUPPORTIVE USES

1. Electrochemical measurements: Provides stable and consistent stirring of solutions during electrochemical experiments, such as pH calibration and measurement, ion-selective electrode analysis, and titration, ensuring a uniform ion concentration around the electrode for fast, accurate readings. The digital speed control allows repeatable stirring conditions across multiple measurements.
2. Pharmaceutical quality control and dissolution testing: Used in pharmaceutical QC laboratories to prepare solutions and standard dilutions. The MS-S can be used as a stirring platform for dissolution test vessels, maintaining consistent agitation for drug release studies when paired with appropriate temperature control from a water bath.
3. Food and beverage quality analysis: Serves as an essential tool in food and beverage analysis laboratories for mixing food extracts, preparing chemical reagents, and dissolving samples before analysis for components such as caffeine, total polyphenols, vitamins, nitrates, and preservatives.
4. Preparation of buffers, mobile phases, and standard solutions: Prepares precise chemical solutions for high-performance liquid chromatography, gas chromatography, and other analytical chemistry techniques by thoroughly dissolving solids and ensuring a homogeneous mixture, with digital speed control for repeatability.
5. Titration and analytical chemistry: Provides continuous and uniform sample stirring during manual and automated titrations, which is critical for the accurate determination of reaction endpoints and the reproducibility of analytical results. The digital display allows the user to set and document the exact stirring speed used.
6. Heavy metal and trace element analysis: Prepares liquid and digested samples for heavy metal analysis using atomic absorption spectroscopy or inductively coupled plasma mass spectrometry by maintaining solid particles in suspension for accurate sampling, with chemical-resistant top plate for acidic solutions.
7. BOD and COD water testing: Prepares samples and reagents for essential water quality tests like Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) by ensuring the complete dissolution and uniform mixing of the strong oxidizing agents and other chemicals used, with consistent stirring for reproducible results.
8. General and educational laboratory use: Serves as an economical, user-friendly digital teaching tool for demonstrating the principles of solution preparation, mixing, and chemical reaction kinetics in high school and university chemistry and biology laboratory courses, with an intuitive interface.
9. Research and development: Provides a reliable, hands-on stirring solution for research scientists performing small-scale chemical synthesis, media optimization, or other reaction studies requiring precise, repeatable agitation over extended periods, with the ability to run continuously for hours.
10. Viscosity testing of liquid samples: Maintains liquid samples under controlled, constant stirring for viscosity measurement using viscometers, supporting quality control in pharmaceutical, chemical, and food industries where sample homogeneity is critical.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Device Type: A non-heating, digital magnetic stirrer for general laboratory liquid mixing.
  • Designation: Non-Heating Magnetic Stirrer (DLAB MS-S), MS-S Digital Magnetic Stirrer, DLAB Standard Magnetic Stirrer.
  • Key Components:
    • Ceramic-coated or stainless steel work plate (depending on model)
    • Maintenance-free, spark-free brushless DC motor
    • Durable rare earth magnets for strong magnetic coupling
    • Digital LCD display for speed readout
    • Stepless digital speed control with 1 rpm resolution (100–1500 rpm)
    • Compact, chemical-resistant casing with IP21 protection
    • Timer function (1–120 minutes) on some models
    • Optional PT1000 temperature sensor for external temperature monitoring (with control unit on some versions)

2. TECHNICAL & PERFORMANCE PROPERTIES

  • Work plate material: Ceramic-coated aluminum or stainless steel (chemical-resistant)
  • Work plate dimensions: φ135 mm (5 inches) or 180×180 mm (square models available)
  • Motor type: Maintenance-free brushless DC motor
  • Maximum stirring capacity (H₂O): Up to 20 liters
  • Speed range: 100 to 1500 rpm (digital, 1 rpm resolution)
  • Speed display: Digital LCD
  • Speed control: Stepless digital control with feedback
  • Maximum stirring bar length: 80 mm
  • Motor output power: 10W
  • Power consumption: 30W
  • Voltage/Frequency: 100–120V / 200–240V AC, 50/60 Hz (universal input)
  • IP protection class: IP21 (protection against solid objects >12.5 mm and vertically falling water)
  • Timer range (select models): 1 to 120 minutes (auto-off)
  • Dimensions (W × D × H): 280 × 160 × 85 mm (approx.)
  • Weight: 2.5–3.0 kg (depending on model)
  • Operating conditions: 5–40°C, 80% RH
  • Certifications: CE, cTUVus, FCC, CB, UKCA, ICES

3. PHYSICAL & OPERATIONAL PROPERTIES

  • Construction: Compact, lightweight design with a small footprint, ideal for individual workstations and cluttered benchtops. The chemical-resistant ceramic-coated or stainless steel top ensures durability against spills and aggressive reagents.
  • Display: Digital LCD display shows the set speed clearly, allowing precise monitoring and adjustment.
  • Operation: Simple, intuitive operation with digital control knobs or buttons. Users can set the exact speed with 1 rpm resolution, ensuring reproducible stirring conditions across experiments.
  • Stirring system: Powerful rare earth magnets ensure a strong magnetic coupling, preventing the stir bar from decoupling even with viscous liquids or at high speeds.
  • Timer function (select models): An integrated programmable timer (1–120 minutes) allows for unattended operation, with the instrument automatically stopping when the time elapses and sounding an audible alert.
  • Maintenance: Truly maintenance-free due to its brushless DC motor design, eliminating the need for routine brush replacement. The work plate is easy to clean.
  • Portability: Lightweight and compact, easily moved between workstations.

4. SAFETY & COMPLIANCE ATTRIBUTES

  • Regulatory Status: General laboratory equipment for in vitro diagnostic (IVD) use. Certified with CE, cTUVus, FCC, CB, UKCA, ICES, and manufactured under ISO 9001 and ISO 13485 quality management systems.
  • Chemical Safety: The ceramic-coated or stainless steel work plate is resistant to a wide range of laboratory chemicals, including acids, alkalis, and organic solvents, preventing corrosion and ensuring a long service life.
  • Electrical Safety: Designed with a brushless, spark-free motor, making it safe for use in environments where flammable solvents may be present. The IP21 enclosure offers basic protection against solid foreign objects and dripping water.
  • Operational Safety: The vibration-free operation ensures the stability of the stirred sample and prevents the beaker from drifting or falling over on the work plate.
  • Overspeed Protection: The digital controller limits the maximum speed to 1500 rpm, providing a safe and predictable agitation range.

5. STORAGE & HANDLING ATTRIBUTES

  • Storage: Store in a clean, dry, dust-free environment at room temperature when not in use. Do not stack objects on top of the stirrer.
  • Cleaning: The work plate and exterior casing are easy to clean with a soft, damp cloth and a mild non-abrasive detergent. Do not immerse the unit in liquid. Do not use abrasive cleaners or metal scouring pads.
  • Pre-use inspection: Before each use, inspect the power cord, plug, and work plate for any damage. Ensure the work plate is clean and dry.
  • Stirring bar care: Use only magnetic stir bars that are in good condition and appropriate for the vessel size to prevent damage to the work plate beneath the glassware.
  • Operation: Place the stirring vessel (e.g., beaker) centrally on the work plate. Add the stir bar. Turn on the power and gradually increase the speed using the digital control knob to prevent splashing. Start low (100–200 rpm) and increase as needed.
  • Timer operation (if equipped): Set the desired runtime (1–120 minutes). The stirrer will automatically stop when the timer reaches zero and sound an audible alert.
  • Installation: Place on a stable, level, non-flammable benchtop with adequate clearance (minimum 10 cm) from walls. Do not place near strong magnetic fields (e.g., large magnets, NMR equipment) which may interfere with the magnetic coupling.

6. LABORATORY & CLINICAL APPLICATIONS

  • Primary Application: General purpose mixing and stirring of liquids in clinical diagnostics, pharmaceutical and food analysis, water quality and environmental monitoring, and research labs where an economical, reliable, and chemical-resistant non-heating magnetic stirrer with digital speed control is required.
Clinical Role: An essential instrument for hospital and clinical laboratories, pharmaceutical and industrial quality control laboratories, environmental testing stations, and educational institutions. It is critical for the preparation of reagents, buffers, solutions, and culture media, as well as for mixing samples before analysis
SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

  • Chemical Compatibility: Always ensure the work plate material is compatible with the chemicals being mixed. While ceramic-coated and stainless steel plates are chemically resistant, clean up spills promptly to avoid any long-term surface damage.
  • Vessel and Stir Bar Selection: Use a flat-bottomed vessel (e.g., a beaker) on the stirrer to ensure stability. Ensure the magnetic stir bar is in good condition without chips or cracks and is properly centered in the vessel before starting the motor.
  • Start Slowly: Always start with the speed at its lowest setting (100 rpm) and gradually increase to the desired level to avoid splashing the sample or causing the stir bar to uncouple from the magnetic field.
  • Magnetic Interference: Do not place the stirrer near sensitive electronic equipment or magnetic storage media (e.g., hard drives, credit cards) as the strong permanent magnets may cause interference or data loss.
  • Cleaning: Disconnect the power supply before cleaning the unit. Do not immerse or allow liquids to enter the instrument housing. The unit is rated IP21 for basic protection only.
  • Training Requirement: Only trained laboratory personnel should operate the DLAB MS-S for clinical or diagnostic applications.

2. FIRST AID MEASURES

  • Sample Splash to Eyes: If a biological or chemical sample splashes into the eyes during mixing, flush immediately with water for 15 minutes and seek medical attention.
  • Skin Contact: Wash contaminated skin with soap and water thoroughly. If irritation or signs of infection develop, seek medical evaluation.
  • Chemical Exposure: If a hazardous chemical is spilled on the skin or clothing, refer to the specific Safety Data Sheet (SDS) for that chemical for detailed first-aid instructions.
  • Inhalation: If chemical vapors from volatile reagents are inhaled during sample preparation, move to fresh air immediately; seek medical attention if symptoms persist.
  • Electrical Shock: If an electrical shock incident occurs, disconnect power at the circuit breaker before attempting to assist the victim. Do not touch the victim until power is disconnected. Seek emergency medical attention.

3. FIRE FIGHTING MEASURES

  • Flammability: The plastic components of the stirrer housing and the power cord are combustible. Do not operate near flammable solvents, gases, or volatile materials.
  • Extinguishing Media: Use carbon dioxide (CO₂) or a dry chemical extinguisher for fires involving electrical equipment. Do not use water on electrical fires.
  • Fire Response: The primary fire hazard is the flammable liquids being mixed. In case of fire, disconnect the stirrer from its power source if safe to do so, evacuate the area, and follow the laboratory's fire safety protocols.
  • Special Protective Equipment for Firefighters: Firefighters should wear self-contained breathing apparatus (SCBA) and full structural firefighting gear when fighting fires in laboratory settings.