Infrared Heating Magnetic Stirrer (MS7‑H280‑G)

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The Infrared Heating Magnetic Stirrer (MS7‑H280‑G) is a versatile, programmable benchtop instrument that combines a high‑performance magnetic stirrer with a full‑coverage infrared heating system on a 7‑inch (180×180 mm) glass ceramic work plate. By connecting optional interchangeable heating mantles (smart jackets), the same unit can securely heat round‑bottom flasks from 100 mL to 1000 mL or stir flat‑bottom beakers with a maximum capacity of 20 liters, making it ideal for distillation, reflux, sample digestion, buffer preparation, and general laboratory heating.

Every LCD 7‑inch Infrared Heating Magnetic Stirrer (MS7‑H280‑G) features a high‑resolution LCD display showing set and actual values for temperature, speed, and timer, a maintenance‑free brushless DC motor, and a glass ceramic work plate that resists strong acids and alkalis for easy cleaning. The full‑coverage infrared heating elements ensure uniform heat distribution up to 280 °C, and the optional PT1000 external temperature sensor (±0.2 °C accuracy) provides precise control of the actual sample liquid temperature.

Key user‑focused features include interchangeable heating mantle adapters for round‑bottom flasks (100 mL, 250 mL, 500 mL, 1000 mL), a programmable timer (1 minute to 99 hours 59 minutes), an RS232 interface for remote PC control and data logging, and a safety lock. Safety is paramount with dual independent safety circuits providing over‑temperature protection (340 °C hardware cutoff), an independent residual heat warning (“HOT” flashes at >50 °C and continues even after the unit is turned off), a spill drain channel, and IP21 protection.

For the research scientist, pharmaceutical chemist, and clinical laboratory technologist, the LCD 7‑inch Infrared Heating Magnetic Stirrer (MS7‑H280‑G) delivers the precise, safe, and versatile heating and stirring required for chemical synthesis, distillation, reflux, sample digestion for trace element analysis, buffer preparation, and drug dissolution testing. For the patient, reliable and reproducible heating ensures that diagnostic tests and pharmaceutical products are accurate and consistent, directly supporting effective clinical decision‑making, appropriate treatment selection, and patient safety.

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Description

Infrared Heating Magnetic Stirrer (MS7-H280-G)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Versatile Heating and Stirring for Clinical and General Laboratory Use
Primary Use: Provides a programmable, LCD digital heatable magnetic stirrer with a 7‑inch (180×180 mm) glass ceramic work plate. By connecting optional interchangeable heating mantles, it supports both 100 mL to 1000 mL round‑bottom flasks or standard flat‑bottom beakers, serving as a standalone heating magnetic stirrer or as two independent units (one for heating, one for stirring). It has a maximum stirring capacity of 20 liters (water), a stepless speed range of 100 to 1500 rpm in 1 rpm increments, and a heating temperature range from room temperature to 280 °C in 1 °C increments.

How it helps: The MS7‑H280‑G is an all‑in‑one solution for heating round‑bottom flasks and stirring flat‑bottom beakers. For chemists and biologists, the interchangeable heating mantle adapters (smart jackets) allow the same unit to securely heat a 100 mL round‑bottom flask for distillation or reflux, or to stir a 2‑liter beaker of buffer solution—replacing multiple single‑purpose devices. The glass ceramic plate heats quickly and evenly, supports strong magnets for consistent stirring at high viscosities, and is highly resistant to chemical corrosion and scratching. The detachable design of the glass ceramic plate makes cleaning easy. For the patient, the versatility and reproducibility of this platform ensure consistent conditions for pharmaceutical synthesis, diagnostic reagent preparation, and research, supporting drug development and accurate testing.

2. Precise Temperature Control and Safety for Digestions and Chemical Reactions
Primary Use: The MS7‑H280‑G is suitable for heating applications that require a controlled environment, including sample preparations, digestions, chemical synthesis, and reflux of organic compounds. Its external PT1000 temperature probe (optional accessory) enables closed‑loop control of the liquid temperature with ±0.2 °C accuracy.

How it helps: For trace metal analysts and organic chemists performing hot acid digestions or reflux, the external PT1000 sensor (±0.2 °C accuracy) delivers stable temperature control of the liquid, regardless of the container shape. The full‑coverage infrared heating elements and the fiberglass/al‑silica sleeve ensure uniform heat distribution, eliminating cold spots that could result in incomplete reactions. Dual independent over‑temperature circuits cut power at 340 °C, and a residual heat warning protects the operator. For the patient undergoing heavy metal screening (blood lead, urine cadmium) or for the development of a new pharmaceutical, these precise, safe, controlled reactions ensure that compounds are analyzed correctly, supporting accurate diagnoses and safe medications.

3. Unattended Operation with Software Control for Research and Education
Primary Use: The Infrared Heating Magnetic Stirrer (MS7‑H280‑G) can be controlled by a PC via an RS232 interface. This allows remote control, automation, and data logging into a computer, ensuring reproducibility and documentation of experiments. An integrated programmable timer (1 minute to 99 hours 59 minutes) automates timed heating or stirring protocols.

How it helps: For quality assurance managers and researchers, remote PC control via the RS232 interface reduces hands‑on time and allows the instrument to be operated from within a fume hood. Data logging supports GLP compliance and full experiment documentation. The integrated timer safely automates the melting of media or the duration of a digestion, reducing operator error. For the patient, excellent reproducibility means test results are consistent over time, allowing reliable monitoring of disease progression or treatment efficacy.

4. Safe Handling and Chemical Resistance for Demanding Applications
Primary Use: The Infrared Heating Magnetic Stirrer (MS7‑H280‑G) is a safe and durable device suitable for mixing viscous liquids or aggressive chemicals. Its housing incorporates a drain channel to prevent damage from spills, and the glass‑ceramic surface resists strong acids for easy cleaning. An IP21 protection class provides basic splash and dust resistance.

How it helps: For technicians working with aggressive chemicals or messy biological media, the spill channel protects internal electronics, and the glass ceramic plate is chemically inert and easy to clean. Safety is ensured via two independent over‑temperature circuits, which cut power at 340 °C, a residual heat warning (plate >50 °C flashes “HOT” even after power off), a durable metal case, and an IP21 housing. For the patient, reliable equipment that can handle the daily rigors of a high‑volume diagnostic lab ensures that results for your health are accurate and delivered quickly.

SECONDARY & SUPPORTIVE USES

1. Chemical synthesis and reflux in pharmaceutical research: Provides stable, uniform heating for distillation, reflux, and digestion of organic compounds in 100 mL to 1000 mL round‑bottom flasks, supporting fine chemical, pharmaceutical, and polymer research with the ability to stir up to 20 liters and heat up to 280 °C.

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

3. Dissolution testing simulation for drug development: Provides precise heating (up to 280 °C) to simulate dissolution test conditions for solid oral dosage forms (tablets, capsules) in beakers or flasks, useful for preliminary formulation screening and early‑stage drug development.

4. Protein denaturation and enzyme inactivation in biochemistry: Heats protein solutions to temperatures above 70 °C in beakers or round‑bottom flasks to completely denature enzymes and coagulate proteins, stopping enzymatic reactions before downstream analysis in protein purification and enzyme assay workflows.

5. DNA extraction and nucleic acid preparation: Provides uniform heating and gentle mixing during lysis, binding, and elution steps in manual nucleic acid extraction workflows using round‑bottom flasks or beakers, improving nucleic acid yield and purity for downstream PCR or sequencing applications.

6. Media and buffer preparation for cell culture: Pre‑warms and mixes cell culture media, phosphate‑buffered saline, and other reagents to physiological temperatures (37 °C) or higher, ensuring consistent conditions for cell propagation and reducing the risk of contamination.

7. Thermal stability assessment of materials and chemicals: Heats sample materials in beakers or round‑bottom flasks to assess thermal stability, decomposition temperatures, or heat‑induced property changes, with uniform heating across the 7‑inch glass ceramic work plate.

8. 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.

KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: A programmable, LCD digital infrared heating magnetic stirrer with a 7‑inch glass ceramic work plate and interchangeable heating mantle adapters.
Designation: MS7‑H280‑G LCD 7‑inch Infrared Heating Magnetic Stirrer, DLAB MS7‑H280‑G, 7‑inch Glass Ceramic Hotplate Stirrer.
Key Components:
- 7‑inch (180×180 mm) glass ceramic work plate (strong acid resistant, strong alkali resistant, easy to clean)
- Full‑coverage infrared heating elements for uniform heat distribution
- Maintenance‑free, spark‑free brushless DC motor
- High‑resolution LCD display showing set and actual values for temperature, speed, and timer
- PT1000 external temperature sensor port (±0.2 °C accuracy, sensor optional)
- Interchangeable heating mantle adapters (smart jackets) for 100 mL, 250 mL, 500 mL, 1000 mL round‑bottom flasks (optional accessories)
- Programmable timer (1 minute to 99 hours 59 minutes)
- RS232 interface for remote PC control and data logging
- Safety lock to prevent accidental changes
- Independent “HOT” residual heat indicator (flashes when plate >50 °C, even after power off)
- Dual independent safety circuits with over‑temperature protection (340 °C hardware cutoff)
- Spill drain channel and IP21‑rated housing

2. TECHNICAL & PERFORMANCE PROPERTIES

Work plate dimensions: 180×180 mm (7‑inches square)
Work plate material: Glass ceramic (microcrystalline) – strong acid resistant, strong alkali resistant, high temperature resistant, excellent thermal conductivity
Heating technology: Full‑coverage infrared heating elements with fiberglass/al‑silica sleeve for uniform heating
Maximum stirring capacity (H₂O): 20 liters
Speed range: 100 to 1500 rpm (adjustable in 1 rpm increments)
Speed display: LCD digital (set and actual speed)
Heating temperature range: Room temperature 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 (display) / ±0.5 °C (control with external sensor)
Timer range: 1 minute to 99 hours 59 minutes
Over‑temperature protection: 340 °C hardware cutoff (dual independent safety circuits)
Residual heat warning: “HOT” indicator flashes when plate >50 °C, continues after power off
Data interface: RS232 for remote PC control and data logging
Heating output power: 500 W (typical for glass ceramic plate) + heating mantle power when attached
Total power consumption: 600 W (approximate)
Motor type: Brushless DC motor (maintenance‑free, spark‑free)
Protection class: IP21 (protection against solid objects >12.5 mm and vertically falling water drops)
Power requirements: 100–120 V / 200–240 V AC, 50/60 Hz (universal input)
Dimensions (W × D × H): 330 × 190 × 110 mm (approximate)
Weight: 4.5 kg (approximate)
Operating conditions: 5–40 °C, ≤80 % relative humidity
Certifications: CE, cTUVus, FCC, TÜV‑certified safety

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: Durable benchtop design with a glass ceramic work plate and a corrosion‑resistant metal housing, incorporating a spill drain channel to protect internal electronics.
Work plate: 7‑inch (180×180 mm) glass ceramic (microcrystalline) work plate. Provides excellent chemical resistance (strong acid resistant, strong alkali resistant), high temperature durability, and rapid, uniform heat distribution. The detachable design simplifies cleaning.
Heating technology: Full‑coverage infrared heating elements embedded in a fiberglass/al‑silica sleeve ensure uniform heat distribution across the entire glass ceramic plate, eliminating hot spots.
Interchangeable heating mantles (smart jackets): Optional adapters for 100 mL, 250 mL, 500 mL, and 1000 mL round‑bottom flasks provide a secure, form‑fitting heating chamber while leaving the top half of the flask visible. The MS7‑H280‑G can also be used as two independent units: one for heating (using the heating mantle) and one for stirring (using the magnetic stirrer).
Display: High‑resolution LCD screen simultaneously shows set and actual values for temperature, speed, and timer, providing complete operational visibility.
Operation: Simple, intuitive digital controls with dedicated buttons for temperature, speed, and timer settings.
Stirring system: Powerful rare earth magnets provide strong magnetic coupling, preventing stir bar decoupling even with viscous liquids or at high speeds.
Timer function: Integrated programmable timer from 1 minute to 99 hours 59 minutes. When the timer reaches zero, the instrument stops heating but continues stirring (if configured), preventing thermal degradation of heat‑sensitive samples.
Data connectivity: RS232 interface allows remote PC control and logging of temperature and speed data via computer software (e.g., DLAB StirPC), enabling full experiment documentation and integration into automated lab workflows.
Safety functions:
- Safety lock: Prevents accidental changes to operating status once parameters are set.
- Residual heat warning: “HOT” indicator flashes when work plate temperature >50 °C and continues even after power is turned off.
- Dual independent safety circuits: Two independent safety circuits monitor system status. If sensor failure, over‑temperature (>340 °C), or short circuit occurs, heating stops automatically and an error message is displayed.
- Spill drain channel: Raised edge and drainage platform prevent liquid spills from entering internal electronics.
Maintenance: Maintenance‑free brushless DC motor eliminates the need for routine brush replacement. The glass ceramic work plate and detachable heating mantles are easy to clean.

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; certified to CE, cTUVus, FCC, and TÜV safety standards.
Dual Independent Safety Circuits: Two independent safety circuits continuously monitor the device. In case of overheating (>340 °C) or sensor failure, heating stops and an error message is displayed. If a short circuit occurs, power is automatically cut off.
Over‑Temperature Protection: Hardware over‑temperature protection cuts off heating at 340 °C, preventing runaway heating and fire hazards.
Residual Heat Warning: The “HOT” safety indicator activates when the work plate temperature exceeds 50 °C and continues flashing even after the unit is powered off, alerting users to the hot surface until it is safe to touch.
Safety Lock: Lock function prevents accidental changes to operating status once parameters are set, protecting critical experiments from unintended adjustments.
Chemical Safety: The glass ceramic work plate is resistant to strong acids, strong alkalis, and organic solvents, preventing corrosion and ensuring a long service life even when handling aggressive chemicals.
Spill Protection: The built‑in spill drain channel and IP21‑rated housing protect internal electronics from liquid spills and splashes.
Electrical Safety: Designed with a brushless, spark‑free DC motor, making it safe for use in environments where flammable solvents may be present.
Fire Safety: Metal housing and glass ceramic work plate are non‑flammable; the full‑coverage infrared heating elements are enclosed for safety.
Quality Assurance: Each instrument undergoes individual factory testing and is supplied with a calibration certificate.

5. STORAGE & HANDLING ATTRIBUTES

Storage: Store 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. Cover the instrument to protect the glass ceramic work plate.
Installation: Place on a stable, level, non‑flammable benchtop away from flammable materials, volatile solvents, and combustible gases. Allow at least 10 cm clearance on all sides for heat dissipation. Do not place near strong magnetic fields (e.g., large magnets, NMR equipment).
Cleaning: Allow the work plate to cool completely (verify “HOT” indicator is off) before cleaning. Wipe the glass ceramic work plate and metal housing with a soft, damp cloth or sponge using mild detergent or 70 % isopropyl alcohol. For stubborn residues, use a non‑abrasive cleaner suitable for glass ceramic. The detachable glass ceramic plate can be removed for cleaning. Do not immerse the unit in liquid.
Pre‑use inspection: Before each use, inspect the power cord and plug for damage. Ensure the work plate is clean and free of residues. Verify that no liquid is pooled on or around the unit. Check that the area is free of flammable materials. Ensure the stir bar is in good condition.
Operation with heating mantle (optional accessory): Attach the appropriate heating mantle adapter (smart jacket) for the round‑bottom flask size (100 mL, 250 mL, 500 mL, or 1000 mL). Insert the flask fully into the mantle for maximum surface contact. Do not use a heating mantle without the flask properly seated.
Operation with external sensor (PT1000, optional accessory): Insert the PT1000 temperature sensor probe into the sample vessel and secure it with a stand clamp. Do not allow the sensor wire to contact the hot work plate or heating mantle.
Timer operation: Program the timer for the desired heating and stirring duration. When zero is reached, the unit stops heating but continues stirring (if configured) to prevent sample degradation, and the buzzer sounds.
Stirring bar care: Use only magnetic stir bars in good condition. For the MS7‑H280‑G with up to 20 L capacity, use stir bars up to 80 mm in length. Start stirring at a low speed (100–200 rpm) and gradually increase.
Cooling down: After use, turn off the power and allow the work plate to cool completely until the “HOT” indicator turns off (typically 30–60 minutes depending on operating temperature) before cleaning, moving, or storing.
PC connection (RS232): Use the RS232 interface to connect to a computer for remote control and data logging. Install the appropriate software (e.g., DLAB StirPC) according to the manufacturer’s instructions.
Periodic verification: Verify temperature accuracy periodically using a calibrated external thermometer or thermocouple. If deviation exceeds specifications, consult the manufacturer’s service guidelines.

6. LABORATORY & CLINICAL APPLICATIONS

Primary Application: General purpose heating and stirring for clinical diagnostics (sample digestion, reagent preparation), pharmaceutical quality control (dissolution testing, buffer preparation), chemical synthesis (distillation, reflux), material science, and research laboratories where the ability to heat both round‑bottom flasks and flat‑bottom beakers is required.
Clinical Role: A versatile instrument for hospital and clinical laboratories, pharmaceutical R&D, analytical chemistry, environmental testing stations, and research institutions. Critical for sample digestion for trace element analysis (blood lead, urine cadmium, heavy metals), media preparation, enzyme activity assays, dissolution testing, and chemical synthesis where both flask and beaker heating are needed.

SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Burn Hazard — High Plate Temperature: The glass ceramic work plate can reach 280 °C and remains dangerously hot for an extended period after the power is turned off. Do not touch the work plate for at least 30‑60 minutes after use, or until the residual heat “HOT” indicator has stopped flashing. Use appropriate heat‑resistant gloves or tools when handling vessels on the hot plate. Severe burns can occur upon contact.
Residual Heat Warning — Continues Even When Off: The “HOT” safety indicator activates when the work plate exceeds 50 °C and continues flashing on the display even after the unit is turned off (if still connected to mains). This critical safety feature is independent of the main power switch and alerts users to a dangerously hot surface until the plate is safe to touch (temperature drops below 50 °C). Always verify that the “HOT” indicator has stopped flashing before touching the plate. 
Fire Hazard — Avoid Flammable Materials and Dry‑Heating: 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. The independent safety circuit (340 °C cut‑off) provides backup protection but should not replace operator vigilance.
Over‑Temperature Protection — Dual Independent Safety Circuits: The instrument has dual independent safety circuits that continuously monitor system status. A PT1000 alert occurs in case of sensor failure. If sensor failure or over‑temperature is detected (plate exceeds 340 °C), the unit stops heating, displays an error message, and may sound an audible alarm. If the first safety circuit fails and a short circuit is detected, the second safety circuit cuts off the power supply to ensure operator safety. 
Electrical Safety — Proper Grounding: Do not operate the instrument with wet hands. Ensure the mains power cable does not come into contact with liquids or sharp edges that could damage the insulation. Use only the supplied grounded power cord and ensure the outlet provides proper grounding. Disconnect the power cord before cleaning, servicing, or moving the unit. Do not operate if the power cord is damaged. The IP21 rating offers basic protection against vertically falling water drops, but does not protect against immersion or significant liquid spills.
Magnetic Field Interference — Medical Devices: The stirrer contains strong permanent magnets. People with implanted medical devices (e.g., pacemakers, implantable cardioverter‑defibrillators, neurostimulators) should keep a safe distance of at least 30 cm from the operating stirrer. Do not place the instrument near credit cards, hard drives, computer monitors, or other magnetic‑sensitive equipment.
Vessel and Stir Bar Selection: Use only flat‑bottomed vessels (beakers, Erlenmeyer flasks, crystallising dishes) that sit flush on the glass ceramic work plate. Ensure the magnetic stir bar is in good condition without chips, cracks, or deformities and is properly centered in the vessel before starting. Do not exceed the maximum stir bar length of 80 mm for the 20‑litre capacity.
Start Slowly (Smooth Start): Always start stirring at a low speed (100‑200 rpm) and gradually increase to the desired level. A sudden high‑speed start may cause the stir bar to decouple, spin erratically, or strike the vessel wall, leading to splashing, spillage, or vessel breakage.
Chemical Compatibility — Glass Ceramic Surface: The glass ceramic work plate is resistant to strong acids, strong alkalis, and organic solvents. However, prolonged exposure to some concentrated mineral acids (e.g., hydrofluoric acid, concentrated sulphuric acid) or aggressive reagents may degrade the surface. Clean spills promptly. Refer to the Safety Data Sheet (SDS) for specific chemicals. Never heat sealed vessels or containers that cannot vent pressure, as explosion may result.
Spill Management — Prevent Liquids Entering Housing: If a liquid spill occurs on the work plate during operation, turn off the heating and stirring functions immediately. Unplug the unit, allow the plate to cool (if heated), and wipe the spill clean with a soft, damp cloth. Do not let liquids seep under the work plate or into the housing. The IP21 rating does not protect against pooling liquids or immersion. The raised edge and built‑in spill trough/drainage groove will protect the electronics from minor spills, but large‑volume spills should be cleaned immediately. 
Operating Environment — Clean, Stable Benchtop: Use the instrument indoors only, on a stable, level, non‑flammable laboratory benchtop. Do not use in explosive atmospheres or in the presence of flammable gases or vapours. The permissible ambient temperature range is 5‑40 °C with relative humidity not exceeding 80 %. Allow at least 10 cm clearance on all sides for proper heat dissipation and ventilation. Do not cover the instrument during operation.
External PT1000 Sensor Safety — Secure Placement: When using the optional PT1000 external temperature sensor, insert the sensor probe into the sample vessel and secure it with a suitable stand and clamp. Do not allow the sensor cable to contact the hot work plate, as this may melt the wire insulation and cause sensor failure, electrical hazard, or burns. If any abnormal situation is detected (e.g., sensor failure or disconnection, indicated by an error code on the display), the heating mode will automatically shut down as a safety precaution. Always inspect the sensor cable for damage before use.
RS232 Remote Operation — Safe Connection: When using the RS232 interface for remote PC control, use a properly shielded RS232 cable to prevent electromagnetic interference. Ensure the PC is properly grounded. Do not leave the instrument unattended with remote control enabled without appropriate safety protocols.
Cleaning and Maintenance — Safe Cleaning Protocols: Unplug the unit and allow the work plate to cool completely before cleaning. Wipe the glass ceramic work plate and the die‑cast aluminium housing with a soft, damp cloth using a mild laboratory detergent or 70 % isopropyl alcohol. Do not immerse the unit in liquid. Do not use abrasive cleaners, metal scouring pads, or sharp objects that could scratch the glass ceramic surface. The brushless DC motor requires no routine maintenance, but periodically inspect the power cord and the condition of the work plate for signs of wear or chemical damage.
Training Requirement — Qualified Users Only: Only trained laboratory personnel with appropriate technical background in hotplate stirrer and infrared heating operation should operate this instrument for clinical diagnostic or research applications. Users must read and understand the operator's manual before first use. Laboratory managers should ensure all operators are aware of the proper procedure for starting and stopping stir bars, handling large‑volume reactions, and the specific safety considerations for heating and stirring hazardous materials with infrared heating elements.

2. FIRST AID MEASURES

Burn from Hot Surface: If skin contacts the hot work plate or a hot vessel, immediately cool the burn area with cool (not cold) running water for at least 15 minutes. Do not apply ice directly. 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 — Primary Fire Hazard is Heated Chemicals: The instrument's fire‑resistant die‑cast aluminium housing is non‑flammable, but the power cord, internal wiring, electronic components, and plastic control elements are combustible. The glass ceramic work plate is non‑flammable. The primary fire hazard is the flammable chemicals, solvents, or materials being heated on the work plate.
Extinguishing Media — Electrical Fires Require CO₂ or Dry Chemical: 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 — Isolate Power and Evacuate: 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.

Infrared Heating Magnetic Stirrer (MS7‑H280‑G)

Infrared Heating Magnetic Stirrer (MS7-H280-G)

PRIMARY CLINICAL & DIAGNOSTIC USES

SECONDARY & SUPPORTIVE USES

3. Dissolution testing simulation for drug development: Provides precise heating (up to 280 °C) to simulate dissolution test conditions for solid oral dosage forms (tablets, capsules) in beakers or flasks, useful for preliminary formulation screening and early‑stage drug development.

6. Media and buffer preparation for cell culture: Pre‑warms and mixes cell culture media, phosphate‑buffered saline, and other reagents to physiological temperatures (37 °C) or higher, ensuring consistent conditions for cell propagation and reducing the risk of contamination.

7. Thermal stability assessment of materials and chemicals: Heats sample materials in beakers or round‑bottom flasks to assess thermal stability, decomposition temperatures, or heat‑induced property changes, with uniform heating across the 7‑inch glass ceramic work plate.

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: A programmable, LCD digital infrared heating magnetic stirrer with a 7‑inch glass ceramic work plate and interchangeable heating mantle adapters.

Designation: MS7‑H280‑G LCD 7‑inch Infrared Heating Magnetic Stirrer, DLAB MS7‑H280‑G, 7‑inch Glass Ceramic Hotplate Stirrer.

Key Components:

7‑inch (180×180 mm) glass ceramic work plate (strong acid resistant, strong alkali resistant, easy to clean)

Full‑coverage infrared heating elements for uniform heat distribution

Maintenance‑free, spark‑free brushless DC motor

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

PT1000 external temperature sensor port (±0.2 °C accuracy, sensor optional)

Interchangeable heating mantle adapters (smart jackets) for 100 mL, 250 mL, 500 mL, 1000 mL round‑bottom flasks (optional accessories)

Programmable timer (1 minute to 99 hours 59 minutes)

RS232 interface for remote PC control and data logging

Safety lock to prevent accidental changes

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

Dual independent safety circuits with over‑temperature protection (340 °C hardware cutoff)

Spill drain channel and IP21‑rated housing

2. TECHNICAL & PERFORMANCE PROPERTIES

Work plate dimensions: 180×180 mm (7‑inches square)

Work plate material: Glass ceramic (microcrystalline) – strong acid resistant, strong alkali resistant, high temperature resistant, excellent thermal conductivity

Heating technology: Full‑coverage infrared heating elements with fiberglass/al‑silica sleeve for uniform heating

Maximum stirring capacity (H₂O): 20 liters

Speed range: 100 to 1500 rpm (adjustable in 1 rpm increments)

Speed display: LCD digital (set and actual speed)

Heating temperature range: Room temperature 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 (display) / ±0.5 °C (control with external sensor)

Timer range: 1 minute to 99 hours 59 minutes

Over‑temperature protection: 340 °C hardware cutoff (dual independent safety circuits)

Residual heat warning: “HOT” indicator flashes when plate >50 °C, continues after power off

Data interface: RS232 for remote PC control and data logging

Heating output power: 500 W (typical for glass ceramic plate) + heating mantle power when attached

Total power consumption: 600 W (approximate)

Motor type: Brushless DC motor (maintenance‑free, spark‑free)

Protection class: IP21 (protection against solid objects >12.5 mm and vertically falling water drops)

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

Dimensions (W × D × H): 330 × 190 × 110 mm (approximate)

Weight: 4.5 kg (approximate)

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

Certifications: CE, cTUVus, FCC, TÜV‑certified safety

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: Durable benchtop design with a glass ceramic work plate and a corrosion‑resistant metal housing, incorporating a spill drain channel to protect internal electronics.

Work plate: 7‑inch (180×180 mm) glass ceramic (microcrystalline) work plate. Provides excellent chemical resistance (strong acid resistant, strong alkali resistant), high temperature durability, and rapid, uniform heat distribution. The detachable design simplifies cleaning.

Heating technology: Full‑coverage infrared heating elements embedded in a fiberglass/al‑silica sleeve ensure uniform heat distribution across the entire glass ceramic plate, eliminating hot spots.

Display: High‑resolution LCD screen simultaneously shows set and actual values for temperature, speed, and timer, providing complete operational visibility.

Operation: Simple, intuitive digital controls with dedicated buttons for temperature, speed, and timer settings.

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

Timer function: Integrated programmable timer from 1 minute to 99 hours 59 minutes. When the timer reaches zero, the instrument stops heating but continues stirring (if configured), preventing thermal degradation of heat‑sensitive samples.

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

Safety functions:

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

Residual heat warning: “HOT” indicator flashes when work plate temperature >50 °C and continues even after power is turned off.

Dual independent safety circuits: Two independent safety circuits monitor system status. If sensor failure, over‑temperature (>340 °C), or short circuit occurs, heating stops automatically and an error message is displayed.

Spill drain channel: Raised edge and drainage platform prevent liquid spills from entering internal electronics.

Maintenance: Maintenance‑free brushless DC motor eliminates the need for routine brush replacement. The glass ceramic work plate and detachable heating mantles are easy to clean.

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; certified to CE, cTUVus, FCC, and TÜV safety standards.

Dual Independent Safety Circuits: Two independent safety circuits continuously monitor the device. In case of overheating (>340 °C) or sensor failure, heating stops and an error message is displayed. If a short circuit occurs, power is automatically cut off.

Over‑Temperature Protection: Hardware over‑temperature protection cuts off heating at 340 °C, preventing runaway heating and fire hazards.

Residual Heat Warning: The “HOT” safety indicator activates when the work plate temperature exceeds 50 °C and continues flashing even after the unit is powered off, alerting users to the hot surface until it is safe to touch.

Safety Lock: Lock function prevents accidental changes to operating status once parameters are set, protecting critical experiments from unintended adjustments.

Chemical Safety: The glass ceramic work plate is resistant to strong acids, strong alkalis, and organic solvents, preventing corrosion and ensuring a long service life even when handling aggressive chemicals.

Spill Protection: The built‑in spill drain channel and IP21‑rated housing protect internal electronics from liquid spills and splashes.

Electrical Safety: Designed with a brushless, spark‑free DC motor, making it safe for use in environments where flammable solvents may be present.

Fire Safety: Metal housing and glass ceramic work plate are non‑flammable; the full‑coverage infrared heating elements are enclosed for safety.

Quality Assurance: Each instrument undergoes individual factory testing and is supplied with a calibration certificate.

5. STORAGE & HANDLING ATTRIBUTES

Storage: Store 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. Cover the instrument to protect the glass ceramic work plate.

Installation: Place on a stable, level, non‑flammable benchtop away from flammable materials, volatile solvents, and combustible gases. Allow at least 10 cm clearance on all sides for heat dissipation. Do not place near strong magnetic fields (e.g., large magnets, NMR equipment).

Pre‑use inspection: Before each use, inspect the power cord and plug for damage. Ensure the work plate is clean and free of residues. Verify that no liquid is pooled on or around the unit. Check that the area is free of flammable materials. Ensure the stir bar is in good condition.

Operation with external sensor (PT1000, optional accessory): Insert the PT1000 temperature sensor probe into the sample vessel and secure it with a stand clamp. Do not allow the sensor wire to contact the hot work plate or heating mantle.

Timer operation: Program the timer for the desired heating and stirring duration. When zero is reached, the unit stops heating but continues stirring (if configured) to prevent sample degradation, and the buzzer sounds.

Stirring bar care: Use only magnetic stir bars in good condition. For the MS7‑H280‑G with up to 20 L capacity, use stir bars up to 80 mm in length. Start stirring at a low speed (100–200 rpm) and gradually increase.

3. Dissolution testing simulation for drug development: Provides precise heating (up to 280 °C) to simulate dissolution test conditions for solid oral dosage forms (tablets, capsules) in beakers or flasks, useful for preliminary formulation screening and early‑stage drug development.

6. Media and buffer preparation for cell culture: Pre‑warms and mixes cell culture media, phosphate‑buffered saline, and other reagents to physiological temperatures (37 °C) or higher, ensuring consistent conditions for cell propagation and reducing the risk of contamination.

7‑inch (180×180 mm) glass ceramic work plate (strong acid resistant, strong alkali resistant, easy to clean)

PT1000 external temperature sensor port (±0.2 °C accuracy, sensor optional)

Interchangeable heating mantle adapters (smart jackets) for 100 mL, 250 mL, 500 mL, 1000 mL round‑bottom flasks (optional accessories)

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 (340 °C hardware cutoff)

Work plate dimensions: 180×180 mm (7‑inches square)

Maximum stirring capacity (H₂O): 20 liters

Speed range: 100 to 1500 rpm (adjustable in 1 rpm increments)

Heating temperature range: Room temperature 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 (display) / ±0.5 °C (control with external sensor)

Timer range: 1 minute to 99 hours 59 minutes

Over‑temperature protection: 340 °C hardware cutoff (dual independent safety circuits)

Residual heat warning: “HOT” indicator flashes when plate >50 °C, continues after power off

Heating output power: 500 W (typical for glass ceramic plate) + heating mantle power when attached

Total power consumption: 600 W (approximate)

Protection class: IP21 (protection against solid objects >12.5 mm and vertically falling water drops)

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

Dimensions (W × D × H): 330 × 190 × 110 mm (approximate)

Weight: 4.5 kg (approximate)

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

Work plate: 7‑inch (180×180 mm) glass ceramic (microcrystalline) work plate. Provides excellent chemical resistance (strong acid resistant, strong alkali resistant), high temperature durability, and rapid, uniform heat distribution. The detachable design simplifies cleaning.

Timer function: Integrated programmable timer from 1 minute to 99 hours 59 minutes. When the timer reaches zero, the instrument stops heating but continues stirring (if configured), preventing thermal degradation of heat‑sensitive samples.

Residual heat warning: “HOT” indicator flashes when work plate temperature >50 °C and continues even after power is turned off.

Dual independent safety circuits: Two independent safety circuits monitor system status. If sensor failure, over‑temperature (>340 °C), or short circuit occurs, heating stops automatically and an error message is displayed.

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

Dual Independent Safety Circuits: Two independent safety circuits continuously monitor the device. In case of overheating (>340 °C) or sensor failure, heating stops and an error message is displayed. If a short circuit occurs, power is automatically cut off.

Over‑Temperature Protection: Hardware over‑temperature protection cuts off heating at 340 °C, preventing runaway heating and fire hazards.

Residual Heat Warning: The “HOT” safety indicator activates when the work plate temperature exceeds 50 °C and continues flashing even after the unit is powered off, alerting users to the hot surface until it is safe to touch.

Storage: Store 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. Cover the instrument to protect the glass ceramic work plate.

Installation: Place on a stable, level, non‑flammable benchtop away from flammable materials, volatile solvents, and combustible gases. Allow at least 10 cm clearance on all sides for heat dissipation. Do not place near strong magnetic fields (e.g., large magnets, NMR equipment).

Stirring bar care: Use only magnetic stir bars in good condition. For the MS7‑H280‑G with up to 20 L capacity, use stir bars up to 80 mm in length. Start stirring at a low speed (100–200 rpm) and gradually increase.

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

Start Slowly (Smooth Start): Always start stirring at a low speed (100‑200 rpm) and gradually increase to the desired level. A sudden high‑speed start may cause the stir bar to decouple, spin erratically, or strike the vessel wall, leading to splashing, spillage, or vessel breakage.