LCD Digital Heating Magnetic Stirrer (MS‑H280‑B100)

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The LCD Digital Heating Magnetic Stirrer (MS‑H280‑B100) is a modular, high‑safety benchtop instrument engineered for precise, versatile, and safe simultaneous heating and stirring in clinical diagnostics, pharmaceutical quality control, analytical chemistry, and research laboratories. Featuring an interchangeable 100 mL beaker heating mantle (flat‑bottom beaker version) with optional 250 mL, 500 mL, and 1000 mL mantles (both beaker and round‑bottom flask formats), this instrument can be configured as a dedicated flask heater or detached to function as a standard 20‑litre ceramic‑coated stirrer. The heating system provides a temperature range of 25 °C to 280 °C (1 °C increments) and a stirring speed range of 200 to 1500 rpm.

Every LCD Digital Heating Magnetic Stirrer (MS‑H280‑B100) features a high‑resolution LCD display showing set and actual values for temperature, speed, and timer, a maintenance‑free, spark‑free brushless DC motor, and a glass‑fibre heating mantle with aluminium‑silicate wool insulation for uniform heat distribution and long thermal life. The PT1000 external temperature sensor port (±0.2 °C accuracy) enables precise control of the actual sample liquid temperature for sensitive digestions and reactions. Three selectable timer modes (1 min–99 h 59 min), auto‑reverse stirring, and a safety lock function allow fully automated, unattended operation with full documentation.

Safety is paramount with TÜV certification (CE, cTUVus, FCC), dual independent safety circuits providing redundant over‑temperature protection (420 °C hardware cutoff), a flask‑sensing safety system, and an independent residual heat warning indicator (“HOT” flashes at >50 °C and continues even after the unit is turned off, including unplugged, until the surface is cool). IP21‑rated housing and a fire‑resistant metal outer shell provide protection against spills and fire hazards.

For the clinical laboratory scientist, trace element analyst, and pharmaceutical QC chemist, the MS‑H280‑B100 delivers the modular versatility, precision, and safety required for sample digestion for trace element analysis (blood lead, urine cadmium, heavy metals), agarose gel preparation, culture media melting, and dissolution testing. For the patient, the reliable performance of this instrument ensures that diagnostic tests and pharmaceutical products are accurate and reproducible, directly supporting effective clinical decision‑making, appropriate treatment selection, and patient safety.

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Description

LCD Digital Heating Magnetic Stirrer (MS‑H280‑B100)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Flexible Heating Mantle Design for Small‑Volume Clinical Sample Processing
Primary Use: Provides a modularLCD Digital Heating Magnetic Stirrer (MS‑H280‑B100) with a 100 mL dedicated beaker heating mantle (interchangeable with 250 mL, 500 mL, and 1000 mL mantles), used for the precise and reproducible heating and stirring of small‑volume clinical samples, reagents, and biological specimens in clinical diagnostics, pharmaceutical research, and analytical laboratories. It features a maximum stirring capacity of 20 liters (water) on its Ø135 mm ceramic‑coated aluminium work plate, a speed range of 200 to 1500 rpm (±20 rpm), and a heating temperature range from 25 °C to 280 °C in 1 °C increments.

How it helps: For the clinical laboratory scientist and pharmaceutical chemist, the interchangeable heating mantle design allows the same instrument to be used for precisely digesting a 100 mL round‑bottom flask of patient tissue, then instantly reconfigured for stirring a 1 litre beaker of buffer at room temperature – replacing multiple single‑purpose devices and maximising bench space. The glass fibre and aluminium‑silicate wool liner provides excellent thermal insulation, ensuring uniform heat distribution without localised hot spots. The unit can also be run as two independent devices – one heating, one stirring – dramatically improving instrument utilisation and workflow flexibility in lean diagnostic laboratories. For the patient, the reproducibility and temperature uniformity of the platform ensure consistent conditions for critical diagnostic sample preparation, supporting accurate test results and the safe, efficient development of new pharmaceutical compounds.

2. High‑Precision Temperature Control for Trace Element Digestion and Sample Preparation
Primary Use: Used for the controlled digestion of whole blood, serum, urine, and tissue homogenates in strong acids at temperatures up to 280 °C, prior to trace element analysis by atomic absorption spectroscopy (AAS) or inductively coupled plasma mass spectrometry (ICP‑MS). The built‑in temperature self‑calibration function and PT1000 external temperature sensor port (±0.2 °C accuracy) enable precise closed‑loop control of the actual sample temperature.

How it helps: For the trace element analyst, the PT1000 external temperature sensor (optional) enables the instrument to regulate the actual temperature of the acid digest directly (±0.2 °C), ensuring complete, uniform oxidation of organic matrices even in demanding applications such as blood lead, urine cadmium, and kidney stone panel analysis. The external PT1000 sensor ensures that heating continues until the actual sample reaches the set point, while the two independent safety circuits continuously monitor sensor status, automatically stopping heating and reporting an error code if any sensor failure is detected. For the patient undergoing heavy metal screening (e.g., lead, mercury, cadmium) or nutritional deficiency monitoring (zinc, copper, selenium), the superior temperature uniformity and consistent digestion achieved with the MS‑H280‑B100 result in accurate and reliable clinical measurements, free from matrix interference.

3. Gel Electrophoresis, Buffer Preparation, and Clinical Microbiology Media Melting
Primary Use: Enables the safe, uniform heating and melting of solid or semi‑solid culture media, agarose gels, and agars directly in 100 mL beakers or round‑bottom flasks, and the preparation of temperature‑sensitive standard solutions and buffers for molecular diagnostics and clinical microbiology workflows. The heating mantle holds the vessel firmly, allowing the top half of the flask to remain visible during operation for easy observation.

How it helps: For the clinical molecular biologist and microbiology technologist, the glass fibre and aluminium‑silicate wool inner sleeve provides 500 °C thermal resistance and superior heat retention, allowing agarose and solid media to melt evenly without localised scorching. The auto‑reverse stirring function helps dissolve and homogenise media ingredients thoroughly. The three‑step timer (1 min‑99 h 59 min) delivers a buzzer alert on completion, while the safety lock parameter‑locking function prevents unintended changes to operating conditions. For the patient, correctly prepared electrophoresis gels and sterile, homogeneous media lead to reproducible identification of pathogens in clinical samples and reliable molecular diagnostic band patterns, enabling effective, timely treatment.

4. One‑Button Gel Melting with Smart Flask Detection for High‑Throughput Testing
Primary Use: For molecular testing and clinical microbiology laboratories handling repetitive gel‑melting runs, the LCD Digital Heating Magnetic Stirrer (MS‑H280‑B100) can be programmed to melt and hold ultra‑pure agarose gels at the set temperature without fluctuation or degradation.

How it helps: For the high‑throughput clinical or forensic DNA laboratory, the ability to melt a gel in the morning and have it held at 70 °C without fluctuation – and then cool down automatically after the timer expires – removes the need for constant operator monitoring. This automated melting‑and‑hold function ensures that gels are ready whenever the cast plate is prepared, improving workflow efficiency. The flask‑sensing safety system will stop heating if it detects the flask is out of position. For the patient or law enforcement agency, this streamlined, standardised processing reduces the risk of procedural errors across high‑volume sample runs and supports faster deoxyribonucleic acid (DNA) amplification and separation.

SECONDARY & SUPPORTIVE USES

1. Chemical synthesis and reflux for small‑volume pharmaceutical development: Provides stable, uniform heating for distillation, reflux, and digestion of organic compounds in 100 mL round‑bottom flasks, supporting fine chemical, pharmaceutical, and educational research – with the ability to reach 280 °C for refluxing high‑boiling‑point solvents. For this purpose, an external PT1000 temperature sensor (±0.2 °C) is required.

2. Solvent evaporation and concentration: Gently heats organic solvents in 100 mL round‑bottom flasks or beakers to remove volatile components and concentrate non‑volatile analytes; the PT1000 external temperature sensor provides ±0.2 °C accuracy for controlled evaporation rates in environmental analysis, food safety testing, and pharmaceutical formulation development.

3. Dissolution testing simulation for drug development: Provides precise heating to simulate dissolution test conditions for solid oral dosage forms (tablets, capsules) placed in a beaker or round‑bottom flask containing heated buffer solutions, useful for preliminary formulation screening when a full bathless dissolution setup is required.

4. Heating metal blocks for bead‑based DNA extraction: The 100 mL heating mantle can accommodate metal heating blocks designed for test tubes, vials, or microcentrifuge tubes, making it suitable for bead‑based DNA extraction protocols, metal‑bead incubations, and small‑scale clinical chemistry tests on multiple samples simultaneously.

5. Protein denaturation and enzyme inactivation in biochemistry: Heats protein solutions in a 100 mL flask to temperatures above 70 °C to completely denature enzymes and coagulate proteins, stopping enzymatic reactions before downstream analysis in protein purification and enzyme assay workflows.

6. General and educational laboratory heating: Serves as a versatile, user‑friendly teaching tool for demonstrating the principles of distillation, reflux, solution preparation, and chemical reaction kinetics in university chemistry and clinical laboratory science courses, with interchangeable heating mantles for round‑bottom flasks.

7. Geochemical and environmental sample preparation: Prepares solid environmental samples such as soils, sediments, and rocks by acid‑digesting or ashing them in preparation for analysis of mineral content and elemental pollutants, with a high‑temperature‑capable mantle (280 °C) that can handle heavy crucibles and aggressive acids.

KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: A modular, programmableLCD Digital Heating Magnetic Stirrer (MS‑H280‑B100) with an interchangeable heating mantle for round‑bottom flasks or flat‑bottom beakers.
Designation:LCD Digital Heating Magnetic Stirrer (MS‑H280‑B100).
Catalogue Number: 8017373100.
Key Components:
- Interchangeable 100 mL beaker heating mantle (optional 250 mL, 500 mL, and 1000 mL mantles available).
- Maintenance‑free, spark‑free brushless DC motor.
- High‑resolution LCD display showing set and actual values for speed, temperature, and timer.
- PT1000 external temperature sensor port for precise sample temperature control (±0.2 °C accuracy).
- PT1000 external sensor and stand (included with some packages).
- Programmable timer (1 minute to 99 hours 59 minutes).
- Safety lock to prevent accidental changes to operating status.
- Three‑step timer with buzzer alert on completion.
- Auto‑reverse stirring function for improved mixing.
- Independent “HOT” residual heat indicator (flashes when plate >50 °C, even after power off).
- Dual independent safety circuits with over‑temperature protection (420 °C hardware cutoff).
- Glass‑fibre and aluminium‑silicate wool inner sleeve for uniform heating and insulation.
- Fire‑resistant (metal) housing with IP21‑rated splash protection.
- RS232 data interface for remote PC control and data logging.

2. TECHNICAL & PERFORMANCE PROPERTIES

Heating mantle capacity (B100 variant): 100 mL beakers; also supports 100 mL round‑bottom flasks (F100 variant). Inner diameter of 100 mL mantle: 54.75 mm.
Work plate material (when detached): Aluminium with ceramic coating (chemical‑resistant, durable).
Work plate dimensions (when detached): Ø135 mm (5 inches).
Motor type: Maintenance‑free, spark‑free brushless DC motor.
Maximum stirring capacity (H₂O) on work plate: 20 litres.
Speed range: 200 to 1500 rpm, adjustable.
Speed display: LCD digital.
Speed display precision: ±20 rpm.
Heating temperature range: 25 °C to 280 °C (adjustable in 1 °C increments).
Temperature control accuracy (plate surface): ±1 °C (<100 °C) / ±1 % (>100 °C).
External temperature sensor (PT1000) accuracy: ±0.2 °C.
Temperature display accuracy: ±0.1 °C.
Timer range: 1 minute to 99 hours 59 minutes (three‑step timer with buzzer).
Maximum stir bar length: 80 mm.
Number of stirring positions: 1.
Motor input power: 1.8 W.
Motor output power: 10 W.
Total power consumption: 650 W.
Heating power (B100 mantle): 210 W / 240 W (100‑120 V); 250 W (200‑240 V).
Over‑temperature protection: 420 °C hardware cutoff (independent safety circuits).
Residual heat warning: Activates above 50 °C; “HOT” flashes on screen and continues even after unit is powered off.
Protection class: IP21.
Power requirements: 100–120 V / 200‑240 V, 50/60 Hz (universal input).
Dimensions (L × W × H): 295 × 160 × 160 mm.
Weight: 3.7 kg.
Operating conditions: 5–40 °C, ≤80 % relative humidity.
Data interface: RS232.
Certifications: TÜV‑certified safety (CE, cTUVus, FCC).

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: Durable benchtop design with a fire‑resistant (metal) outer housing and a detachable interchangeable heating mantle. The heating mantle is constructed from a glass‑fibre inner sleeve embedded with aluminium‑silicate (ceramic) wool for excellent thermal insulation. The aluminium‑structure heating mantle with a powder‑coated, corrosion‑resistant outer shell provides efficient heat transfer and a long service life.
Heating mantle (B100 variant): Dedicated 100 mL beaker heating mantle with an inner diameter of 54.75 mm, precisely contoured to maximise surface‑to‑flask heat transfer and ensure uniform thermal contact. The glass‑fibre and aluminium‑silicate wool liner provides superior heat retention and resistance to thermal shock.
Interchangeable heating mantles: Optional 250 mL, 500 mL, and 1000 mL mantles (B‑beaker or F‑round‑bottom) allow the same driving unit to be reconfigured for a wide range of vessel sizes without purchasing a separate instrument.
Display: High‑resolution LCD simultaneously displays set and actual values for temperature and speed, and timer, providing complete operational visibility at a glance.
Operation: Simple, intuitive digital controls with tactile buttons for temperature, speed, and timer programming.
Heating technology: PID‑controlled heating with temperature self‑calibration function; the built‑in calibration routine allows the user to correct for minor temperature offsets, ensuring higher and more reproducible temperature accuracy over time.
Stirring system: Powerful rare‑earth magnets provide strong magnetic coupling, preventing stir bar decoupling even with viscous liquids or at high speeds.
Timer function: Three‑step programmable timer from 1 minute to 99 hours 59 minutes, with buzzer alert upon completion and safety‑lock parameter‑locking function.
Auto‑reverse stirring: When activated, the direction of rotation automatically reverses at a programmed interval (typically every 15 seconds), improving mixing efficiency for viscous or colloidal solutions and preventing the formation of a central vortex.
Safety functions:
- Safety lock: Prevents accidental changes to operating status once parameters are set.
- Residual heat warning: “HOT” indicator flashes when the heating mantle (or work plate) exceeds 50 °C and continues flashing even after the instrument is powered off (including unplugged) until the surface cools to a safe temperature.
- Dual independent safety circuits: Two independent safety circuits continuously monitor system status; if sensor failure, over‑temperature (>420 °C), or short circuit is detected, heating stops automatically, an error message is displayed, and power is cut.
- 420 °C over‑temperature protection (hardware cutoff): A separate thermal cut‑off sensor shuts down heating if the work plate exceeds 420 °C, preventing fire hazards and sample destruction.
- Flask position detection: The heating controller senses when a flask is not correctly seated and stops heating, preventing unsafe “dry” heating of the mantle.
Remote control/data connectivity: RS232 interface allows remote PC control and logging of temperature and speed data via computer software (e.g., StirPC), enabling full experiment documentation and integration into automated laboratory workflows.
Spill protection: IP21‑rated housing offers protection against solid foreign objects (>12.5 mm) and vertically falling water drops. The fire‑resistant metal housing also provides protection against chemical spills and is easy to clean.
Maintenance: Brushless DC motor is maintenance‑free, requiring no routine brush replacement. The ceramic‑coated work plate and metal housing are easy to clean with a mild detergent.

4. SAFETY & COMPLIANCE ATTRIBUTES

Regulatory Status: General laboratory equipment for in vitro diagnostic (IVD) use; manufactured under ISO 9001 and ISO 13485 quality management systems. TÜV‑certified safety: CE, cTUVus, FCC.
Dual Independent Safety Circuits: Two independent safety circuits continuously monitor the device. In case of overheating, sensor failure, or electrical fault, the unit stops heating, displays an error message, and cuts off power to protect the operator and the instrument.
Residual Heat Warning: The “HOT” safety indicator activates when the work plate (or heating mantle) exceeds 50 °C and continues flashing on the display even after the unit is turned off (including unplugged), alerting users to the dangerously hot surface until it is safe to touch (temperature drops below 50 °C).
Over‑temperature Protection (Hardware): 420 °C hardware cutoff prevents runaway heating and fire hazards.
Flask‑Sensing Safety System: Heating will automatically stop if the instrument detects that the flask is not correctly seated in the heating mantle, preventing hot, dry running of the heating element.
Chemical Safety: The ceramic‑coated aluminium work plate and the fire‑resistant metal outer housing are resistant to strong acids, strong alkalis, and organic solvents. The glass‑fibre and aluminium‑silicate wool inner sleeve is chemically resistant and will absorb small spills without short‑circuiting the heating element.
Fire Safety: Fire‑resistant metal housing, glass‑fibre insulation, and a non‑flammable ceramic‑coated work plate provide excellent fire protection.
Electrical Safety: Designed with a brushless, spark‑free DC motor, making it safe for use in environments where flammable solvents may be present. The IP21‑rated housing offers protection against solid foreign objects (>12.5 mm) and vertically falling water drops.
Quality Assurance: Each instrument is factory‑calibrated, and the temperature self‑calibration function may be used by the customer to adjust the internal offset for improved precision. The unit is supplied with a calibration certificate and is backed by the manufacturer’s warranty.

5. STORAGE & HANDLING ATTRIBUTES

Storage: Store the instrument in a clean, dry, dust‑free environment at room temperature (15–30 °C) when not in use. Allow the unit to cool completely (verify “HOT” indicator is off) before storage. The heating mantle should be stored in a dry, clean environment to prevent moisture ingress into the fibre insulation.
Installation: Place the instrument on a stable, level, non‑flammable, heat‑resistant laboratory benchtop away from flammable materials, volatile solvents, combustible gases, or paper products. Allow at least 10 cm clearance on all sides for heat dissipation. Do not use near water baths or sinks where splashing may occur.
Cleaning: Unplug the unit and allow it to cool completely before cleaning. Wipe the ceramic‑coated work plate, the metal housing, and the outer surface of the heating mantle with a soft, damp cloth or sponge using a mild laboratory detergent or 70 % isopropyl alcohol. For stubborn residues inside the heating mantle, use a non‑abrasive cleaner suitable for glass‑fibre surfaces. Do not immerse the unit in liquid. Do not use abrasive cleaners or metal‑scouring pads. Do not saturate the fibre insulation inside the heating mantle with liquid.
Pre‑use inspection: Before each use, inspect the power cord and plug for any damage. Ensure the heating mantle is free of cracks and foreign objects. Verify that the correct heating mantle size (100 mL, 250 mL, 500 mL, or 1000 mL) is fitted for the flask being used. Check that the flask is dry, free of cracks, and properly seated in the mantle for maximum surface contact.
Flask selection for heating mantle: Use only standard 100 mL beakers (or round‑bottom flasks for F‑series mantles) made of borosilicate glass (e.g., Pyrex or Kimax) designed to withstand the operating temperature up to 280 °C. Do not use cracked or damaged glassware. The 54.75 mm inner diameter of the 100 mL beaker mantle is specifically designed for a snug, secure fit.
Operation with external sensor: For precise sample temperature control, insert the PT1000 external temperature sensor probe (included in some packages) into the sample vessel and secure it with the stand clamp. Do not allow the sensor wire to contact the hot heating mantle, as this may melt the insulation and cause sensor failure or electrical hazard.
Attaching and removing heating mantles: Ensure the driving unit is turned off and cool. The interchangeable mantle attaches via a dedicated connector. Fit the mantle firmly onto the work plate and lock it according to the manufacturer’s instructions. To remove after use, allow the mantle to cool completely (“HOT” indicator off) before disconnecting.
Independent operation (two-in‑one mode): The MS‑H280‑B100 can be configured to run as two independent units: one unit heating (using the heating mantle) and a separate unit (work plate) stirring simultaneously. Consult the operator’s manual for specific configuration instructions.
Temperature self‑calibration: To perform a self‑calibration, follow the manufacturer’s procedure using a calibrated reference thermometer. This adjusts the internal offset to correct for minor temperature deviations and maintain measurement accuracy over time.
Timer operation: Program the timer for the desired heating and stirring duration. When the timer reaches zero, the unit stops heating but continues stirring (if stirring was enabled), and the buzzer sounds. Press any button to silence the buzzer.
Cooling down: After use, turn off the power and allow the heating mantle to cool completely until the “HOT” indicator stops flashing (typically 30–60 minutes, depending on operating temperature) before cleaning, moving, storing, or changing the mantle.
PC connection (RS232): Use the RS232 interface to connect to a computer for remote control and data logging. Install the appropriate software (e.g., StirPC) according to the manufacturer’s instructions.
Periodic verification: Verify temperature accuracy periodically using a calibrated external thermometer. If deviation exceeds specifications (±1 °C <100 °C or ±1 % >100 °C), perform a temperature self‑calibration routine or consult the manufacturer’s service guidelines for recalibration.

6. LABORATORY & CLINICAL APPLICATIONS

Primary Application: General‑purpose heating and stirring for small‑ to medium‑volume clinical diagnostics (sample digestion for trace element analysis, buffer preparation), pharmaceutical quality control (dissolution testing, small‑batch buffer preparation), analytical chemistry (reflux, distillation), and research laboratories where the ability to heat both round‑bottom flasks and flat‑bottom beakers in a single versatile platform is required.
Clinical Role: A versatile and essential instrument for hospital and clinical chemistry laboratories, molecular diagnostics labs (gel melting), pharmaceutical R&D and quality control, analytical chemistry departments, environmental testing stations, and research institutions. Critical for sample digestion for trace element analysis (blood lead, urine cadmium, heavy metals), agarose gel preparation, culture media preparation, and small‑volume dissolution testing where precise, safe, and versatile heating with stirring is mandatory for diagnostic accuracy and patient safety.

SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Burn Hazard: The heating mantle can reach 280 °C and remains hot for an extended period after the power is turned off. Do not touch the heating mantle or metal housing for at least 30–60 minutes after use, or until the residual heat “HOT” indicator stops flashing. Use appropriate heat‑resistant gloves or tools when handling glassware that has been in contact with the heating mantle. Severe burns can occur upon contact.
Fire Hazard: Do not operate the instrument near flammable materials, volatile solvents, combustible gases, or paper products. Keep the work area clear of flammable substances. The heating temperature must be set at least 50 °C lower than the ignition point of the chemicals being used. Do not leave the instrument unattended while operating at high temperatures without appropriate safety protocols.
Electrical Safety: Do not operate the instrument with wet hands. Disconnect the power cord before cleaning, servicing, or changing heating mantles. Use only the supplied grounded power cord and ensure the outlet provides proper grounding. Do not operate if the power cord is damaged. Ensure that the main power supply cable does not touch the hot heating mantle during operation.
Flask Position Safety: Always ensure the beaker or round‑bottom flask is fully and correctly seated in the heating mantle before turning on the heating function. The flask‑sensing safety system will stop heating if it detects that the vessel is out of position, but this should not be relied upon as the primary safety measure.
Chemical Compatibility: The glass‑fibre inner sleeve of the heating mantle and the ceramic‑coated work plate are chemically resistant, but always refer to the Safety Data Sheets (SDS) for specific chemicals to confirm compatibility and to understand any hazards from vapours, fumes, or residues produced when the material is heated.
Heating Mantle Contamination: If the inner glass‑fibre chamber of the heating mantle becomes contaminated with chemical spills, do not attempt to clean it. Once the insulation is saturated, the contamination cannot be removed, and the whole mantle may need replacement.
Vessel Selection: Use only 100 mL borosilicate glass beakers or round‑bottom flasks. Do not use cracked, damaged, or non‑borosilicate glassware. Ensure the flask is dry and free of cracks before inserting into the heating mantle.
Thermal Shock: Do not place a cold beaker directly into a pre‑heated heating mantle, as thermal shock may cause the glass to crack or shatter. Allow the beaker and heating mantle to heat up together gradually. The high‑temperature glass‑fibre liner reaches temperature quickly; allow the flask to warm slowly.
Changing Mantles: Only change heating mantles when the unit is powered off and the mantle has cooled completely to below 50 °C (verify on the display). Use appropriate hand protection to avoid burns from residual heat in the metal housing.
Ventilation and Clearance: The unit requires adequate clearance (at least 10 cm from walls and other equipment) for proper heat dissipation and ventilation. Do not cover the instrument. Ensure the instrument is installed on a stable, level, and temperature‑resistant surface free from explosive or hazardous substances.
Training Requirement: Only trained laboratory personnel with appropriate technical background in hot plate stirrer operation, heating mantle handling, and the specific hazards of heating chemicals and biological samples should operate the MS‑H280‑B100 for clinical diagnostic or research applications. Users must read and understand the operator’s manual before the first use and follow all laboratory safety protocols.

2. FIRST AID MEASURES

Burn from Hot Surface: If skin contacts the hot heating mantle, work plate, or metal housing, immediately cool the burn area with cool (not cold) running water for at least 15 minutes. Do not apply ice directly to the burn. Remove any jewellery or constrictive items from the affected area. Cover the burn with a sterile, non‑adhesive dressing. Seek medical attention for large‑area burns (larger than the palm of the hand), deep burns (white or charred appearance), or burns causing blistering. For burns on the face, hands, feet, or genitals, seek immediate medical attention.
Fire: If a fire occurs on or near the instrument, immediately turn off the power if safe to do so. Use a class ABC dry chemical fire extinguisher or carbon dioxide (CO₂) extinguisher. Do not use water on electrical fires. Evacuate the immediate area if the fire cannot be immediately controlled. Call emergency services.
Chemical Splash to Eyes: If a heated chemical sample or reagent splashes into the eyes, immediately flush the eyes with copious amounts of cool water or sterile saline for at least 15 minutes. Hold the eyelids open to ensure thorough rinsing. Remove contact lenses if present and easily removable. Seek immediate medical attention. Do not attempt to neutralise the chemical in the eye.
Chemical Splash to Skin: Remove contaminated clothing immediately. Flush the affected skin area with cool running water for at least 15 minutes. Do not rub or scrub. Seek medical evaluation for chemical burns or if irritation persists. Refer to the Safety Data Sheet (SDS) for the specific chemical involved.
Inhalation of Fumes: If fumes from heated chemicals are inhaled, move the affected person to fresh air immediately. Keep the person warm and at rest. If breathing is difficult, administer oxygen if trained. If breathing stops, perform CPR. Seek immediate medical attention.
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 the power is disconnected. Once safe, assess the victim for responsiveness and breathing. Call emergency medical services immediately. Perform CPR if trained and necessary. Seek medical evaluation for all electrical shock victims, even if symptoms appear mild.

3. FIRE FIGHTING MEASURES

Flammability: The instrument’s fire‑resistant metal housing is non‑flammable, but the power cord, internal wiring, electronic components, and plastic control elements are combustible. The glass‑fibre inner sleeve of the heating mantle is non‑flammable. The primary fire hazard is the flammable chemicals, solvents, or materials being heated in the flask.
Extinguishing Media: Use carbon dioxide (CO₂), dry chemical (ABC class), or alcohol‑resistant foam extinguishers for fires involving the electrical components or nearby flammable materials. Do not use water on electrical fires, as water conducts electricity and can cause electrical shock or damage the instrument.
Fire Response: Immediately disconnect power to the instrument at the circuit breaker if safe to do so. Evacuate the immediate area. Use an appropriate fire extinguisher for small, contained fires. For larger fires, evacuate the laboratory and call emergency services. Do not attempt to extinguish a fire if not trained or if the fire is spreading rapidly.
Special Protective Equipment for Firefighters: Firefighters should wear self‑contained breathing apparatus (SCBA) and full structural firefighting gear (including gloves, boots, helmet, and turnout coat) when fighting fires in laboratory settings, as combustion products may include toxic fumes from burning plastics, chemicals, and electrical components.

LCD Digital Heating Magnetic Stirrer (MS‑H280‑B100)

LCD Digital Heating Magnetic Stirrer (MS‑H280‑B100)

PRIMARY CLINICAL & DIAGNOSTIC USES

SECONDARY & SUPPORTIVE USES

5. Protein denaturation and enzyme inactivation in biochemistry: Heats protein solutions in a 100 mL flask to temperatures above 70 °C to completely denature enzymes and coagulate proteins, stopping enzymatic reactions before downstream analysis in protein purification and enzyme assay workflows.

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: A modular, programmableLCD Digital Heating Magnetic Stirrer (MS‑H280‑B100) with an interchangeable heating mantle for round‑bottom flasks or flat‑bottom beakers.

Designation:LCD Digital Heating Magnetic Stirrer (MS‑H280‑B100).

Catalogue Number: 8017373100.

Key Components:

Interchangeable 100 mL beaker heating mantle (optional 250 mL, 500 mL, and 1000 mL mantles available).

Maintenance‑free, spark‑free brushless DC motor.

High‑resolution LCD display showing set and actual values for speed, temperature, and timer.

PT1000 external temperature sensor port for precise sample temperature control (±0.2 °C accuracy).

PT1000 external sensor and stand (included with some packages).

Programmable timer (1 minute to 99 hours 59 minutes).

Safety lock to prevent accidental changes to operating status.

Three‑step timer with buzzer alert on completion.

Auto‑reverse stirring function for improved mixing.

Independent “HOT” residual heat indicator (flashes when plate >50 °C, even after power off).

Dual independent safety circuits with over‑temperature protection (420 °C hardware cutoff).

Glass‑fibre and aluminium‑silicate wool inner sleeve for uniform heating and insulation.

Fire‑resistant (metal) housing with IP21‑rated splash protection.

RS232 data interface for remote PC control and data logging.

2. TECHNICAL & PERFORMANCE PROPERTIES

Heating mantle capacity (B100 variant): 100 mL beakers; also supports 100 mL round‑bottom flasks (F100 variant). Inner diameter of 100 mL mantle: 54.75 mm.

Work plate material (when detached): Aluminium with ceramic coating (chemical‑resistant, durable).

Work plate dimensions (when detached): Ø135 mm (5 inches).

Motor type: Maintenance‑free, spark‑free brushless DC motor.

Maximum stirring capacity (H₂O) on work plate: 20 litres.

Speed range: 200 to 1500 rpm, adjustable.

Speed display: LCD digital.

Speed display precision: ±20 rpm.

Heating temperature range: 25 °C to 280 °C (adjustable in 1 °C increments).

Temperature control accuracy (plate surface): ±1 °C (<100 °C) / ±1 % (>100 °C).

External temperature sensor (PT1000) accuracy: ±0.2 °C.

Temperature display accuracy: ±0.1 °C.

Timer range: 1 minute to 99 hours 59 minutes (three‑step timer with buzzer).

Maximum stir bar length: 80 mm.

Number of stirring positions: 1.

Motor input power: 1.8 W.

Motor output power: 10 W.

Total power consumption: 650 W.

Heating power (B100 mantle): 210 W / 240 W (100‑120 V); 250 W (200‑240 V).

Over‑temperature protection: 420 °C hardware cutoff (independent safety circuits).

Residual heat warning: Activates above 50 °C; “HOT” flashes on screen and continues even after unit is powered off.

Protection class: IP21.

Power requirements: 100–120 V / 200‑240 V, 50/60 Hz (universal input).

Dimensions (L × W × H): 295 × 160 × 160 mm.

Weight: 3.7 kg.

Operating conditions: 5–40 °C, ≤80 % relative humidity.

Data interface: RS232.

Certifications: TÜV‑certified safety (CE, cTUVus, FCC).

3. PHYSICAL & OPERATIONAL PROPERTIES

Interchangeable heating mantles: Optional 250 mL, 500 mL, and 1000 mL mantles (B‑beaker or F‑round‑bottom) allow the same driving unit to be reconfigured for a wide range of vessel sizes without purchasing a separate instrument.

Display: High‑resolution LCD simultaneously displays set and actual values for temperature and speed, and timer, providing complete operational visibility at a glance.

Operation: Simple, intuitive digital controls with tactile buttons for temperature, speed, and timer programming.

Heating technology: PID‑controlled heating with temperature self‑calibration function; the built‑in calibration routine allows the user to correct for minor temperature offsets, ensuring higher and more reproducible temperature accuracy over time.

Stirring system: Powerful rare‑earth magnets provide strong magnetic coupling, preventing stir bar decoupling even with viscous liquids or at high speeds.

Timer function: Three‑step programmable timer from 1 minute to 99 hours 59 minutes, with buzzer alert upon completion and safety‑lock parameter‑locking function.

Auto‑reverse stirring: When activated, the direction of rotation automatically reverses at a programmed interval (typically every 15 seconds), improving mixing efficiency for viscous or colloidal solutions and preventing the formation of a central vortex.

Safety functions:

Safety lock: Prevents accidental changes to operating status once parameters are set.

Residual heat warning: “HOT” indicator flashes when the heating mantle (or work plate) exceeds 50 °C and continues flashing even after the instrument is powered off (including unplugged) until the surface cools to a safe temperature.

Dual independent safety circuits: Two independent safety circuits continuously monitor system status; if sensor failure, over‑temperature (>420 °C), or short circuit is detected, heating stops automatically, an error message is displayed, and power is cut.

420 °C over‑temperature protection (hardware cutoff): A separate thermal cut‑off sensor shuts down heating if the work plate exceeds 420 °C, preventing fire hazards and sample destruction.

Flask position detection: The heating controller senses when a flask is not correctly seated and stops heating, preventing unsafe “dry” heating of the mantle.

Remote control/data connectivity: RS232 interface allows remote PC control and logging of temperature and speed data via computer software (e.g., StirPC), enabling full experiment documentation and integration into automated laboratory workflows.

Spill protection: IP21‑rated housing offers protection against solid foreign objects (>12.5 mm) and vertically falling water drops. The fire‑resistant metal housing also provides protection against chemical spills and is easy to clean.

Maintenance: Brushless DC motor is maintenance‑free, requiring no routine brush replacement. The ceramic‑coated work plate and metal housing are easy to clean with a mild detergent.

4. SAFETY & COMPLIANCE ATTRIBUTES

Regulatory Status: General laboratory equipment for in vitro diagnostic (IVD) use; manufactured under ISO 9001 and ISO 13485 quality management systems. TÜV‑certified safety: CE, cTUVus, FCC.

Dual Independent Safety Circuits: Two independent safety circuits continuously monitor the device. In case of overheating, sensor failure, or electrical fault, the unit stops heating, displays an error message, and cuts off power to protect the operator and the instrument.

Over‑temperature Protection (Hardware): 420 °C hardware cutoff prevents runaway heating and fire hazards.

Flask‑Sensing Safety System: Heating will automatically stop if the instrument detects that the flask is not correctly seated in the heating mantle, preventing hot, dry running of the heating element.

Fire Safety: Fire‑resistant metal housing, glass‑fibre insulation, and a non‑flammable ceramic‑coated work plate provide excellent fire protection.

Electrical Safety: Designed with a brushless, spark‑free DC motor, making it safe for use in environments where flammable solvents may be present. The IP21‑rated housing offers protection against solid foreign objects (>12.5 mm) and vertically falling water drops.

Quality Assurance: Each instrument is factory‑calibrated, and the temperature self‑calibration function may be used by the customer to adjust the internal offset for improved precision. The unit is supplied with a calibration certificate and is backed by the manufacturer’s warranty.

5. STORAGE & HANDLING ATTRIBUTES

Independent operation (two-in‑one mode): The MS‑H280‑B100 can be configured to run as two independent units: one unit heating (using the heating mantle) and a separate unit (work plate) stirring simultaneously. Consult the operator’s manual for specific configuration instructions.

Interchangeable 100 mL beaker heating mantle (optional 250 mL, 500 mL, and 1000 mL mantles available).

PT1000 external temperature sensor port for precise sample temperature control (±0.2 °C accuracy).

Programmable timer (1 minute to 99 hours 59 minutes).

Independent “HOT” residual heat indicator (flashes when plate >50 °C, even after power off).

Dual independent safety circuits with over‑temperature protection (420 °C hardware cutoff).

Heating mantle capacity (B100 variant): 100 mL beakers; also supports 100 mL round‑bottom flasks (F100 variant). Inner diameter of 100 mL mantle: 54.75 mm.

Work plate dimensions (when detached): Ø135 mm (5 inches).

Maximum stirring capacity (H₂O) on work plate: 20 litres.

Speed range: 200 to 1500 rpm, adjustable.

Speed display precision: ±20 rpm.

Heating temperature range: 25 °C to 280 °C (adjustable in 1 °C increments).

Temperature control accuracy (plate surface): ±1 °C (<100 °C) / ±1 % (>100 °C).

External temperature sensor (PT1000) accuracy: ±0.2 °C.

Temperature display accuracy: ±0.1 °C.

Timer range: 1 minute to 99 hours 59 minutes (three‑step timer with buzzer).

Maximum stir bar length: 80 mm.

Motor input power: 1.8 W.

Motor output power: 10 W.

Total power consumption: 650 W.

Heating power (B100 mantle): 210 W / 240 W (100‑120 V); 250 W (200‑240 V).

Over‑temperature protection: 420 °C hardware cutoff (independent safety circuits).

Residual heat warning: Activates above 50 °C; “HOT” flashes on screen and continues even after unit is powered off.

Power requirements: 100–120 V / 200‑240 V, 50/60 Hz (universal input).

Dimensions (L × W × H): 295 × 160 × 160 mm.

Weight: 3.7 kg.

Operating conditions: 5–40 °C, ≤80 % relative humidity.

Interchangeable heating mantles: Optional 250 mL, 500 mL, and 1000 mL mantles (B‑beaker or F‑round‑bottom) allow the same driving unit to be reconfigured for a wide range of vessel sizes without purchasing a separate instrument.

Timer function: Three‑step programmable timer from 1 minute to 99 hours 59 minutes, with buzzer alert upon completion and safety‑lock parameter‑locking function.

Residual heat warning: “HOT” indicator flashes when the heating mantle (or work plate) exceeds 50 °C and continues flashing even after the instrument is powered off (including unplugged) until the surface cools to a safe temperature.

Dual independent safety circuits: Two independent safety circuits continuously monitor system status; if sensor failure, over‑temperature (>420 °C), or short circuit is detected, heating stops automatically, an error message is displayed, and power is cut.

420 °C over‑temperature protection (hardware cutoff): A separate thermal cut‑off sensor shuts down heating if the work plate exceeds 420 °C, preventing fire hazards and sample destruction.

Spill protection: IP21‑rated housing offers protection against solid foreign objects (>12.5 mm) and vertically falling water drops. The fire‑resistant metal housing also provides protection against chemical spills and is easy to clean.

Regulatory Status: General laboratory equipment for in vitro diagnostic (IVD) use; manufactured under ISO 9001 and ISO 13485 quality management systems. TÜV‑certified safety: CE, cTUVus, FCC.

Over‑temperature Protection (Hardware): 420 °C hardware cutoff prevents runaway heating and fire hazards.

Electrical Safety: Designed with a brushless, spark‑free DC motor, making it safe for use in environments where flammable solvents may be present. The IP21‑rated housing offers protection against solid foreign objects (>12.5 mm) and vertically falling water drops.

Cooling down: After use, turn off the power and allow the heating mantle to cool completely until the “HOT” indicator stops flashing (typically 30–60 minutes, depending on operating temperature) before cleaning, moving, storing, or changing the mantle.

Vessel Selection: Use only 100 mL borosilicate glass beakers or round‑bottom flasks. Do not use cracked, damaged, or non‑borosilicate glassware. Ensure the flask is dry and free of cracks before inserting into the heating mantle.

Changing Mantles: Only change heating mantles when the unit is powered off and the mantle has cooled completely to below 50 °C (verify on the display). Use appropriate hand protection to avoid burns from residual heat in the metal housing.