LED Digital Heating Magnetic Stirrer (DMS5-280)

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LED digital heating magnetic stirrer (DMS5‑280) with a Ø135 mm ceramic-coated aluminum work plate, 5 L stirring capacity, and heating up to 280°C. Maintenance-free brushless DC motor; LED display shows temperature and speed in real time; optional PT1000 external sensor (±0.2°C) with dual plate/solution temperature monitoring; touch panel operation. Safety: overheat protection, 320°C hardware cutoff, “HOT” warning >50°C even when off, and IP21 protection. Ideal for sample digestion, culture media preparation, reagent and buffer mixing, chemical synthesis, and dissolution testing.

Categories: LABORATORY EQUIPMENT AND SUPPLIES, Incubators and Ovens Tags: 5 L hotplate stirrer, DMS5-280, IP21, LED Digital Heating Magnetic Stirrer, Ø135 mm ceramic-coated plate, Overheat Protection, PT1000

Description

LED Digital Heating Magnetic Stirrer (DMS5-280)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Precise Heating and Stirring for Clinical Sample Preparation
Primary Use: Provides an LED digital heating magnetic stirrer with a 5-inch (Ø135mm) ceramic-coated aluminum work plate and a maintenance-free brushless DC motor, used for the simultaneous heating and mixing of clinical samples, reagents, buffers, and biological specimens, with a maximum stirring capacity of 5 liters, a speed range of 50 to 1500 rpm adjustable in 10 rpm increments, and a heating range from room temperature to 280°C in 1°C increments.

How it helps: For the clinical chemistry technologist, the LED Digital Heating Magnetic Stirrer (DMS5-280) provides a large, uniform heating surface with a ceramic-coated aluminum plate that offers excellent heat conductivity and chemical durability. The brushless DC motor ensures quiet, stable stirring with long-term reliability. The high-quality PT1000 external temperature sensor (optional) provides direct liquid temperature readings with an accuracy of ±0.2°C for controlling sensitive biochemical reactions at set temperatures up to 280°C. For the patient, precise heating and consistent mixing ensure that diagnostic test results are accurate and reproducible, directly supporting reliable clinical decision-making.

2. Clinical Chemistry and Biochemistry Assay Preparation
Primary Use: Used for the precise heating and mixing of reaction solutions, buffers, and reagents in clinical chemistry and biochemistry workflows, including the preparation of standard curves, the dissolution of reagents for enzymatic assays, and the incubation of temperature-sensitive reactions requiring uniform thermal conditions.

How it helps: For the clinical laboratory scientist, the digital LED display provides independent and accurate real-time readings of both temperature and speed, allowing for immediate confirmation and precise parameter monitoring throughout experiments. The brushless DC motor provides stable torque output for mixing viscous solutions without losing magnetic coupling, suitable for preparing master mixes or dissolving powdered media. This integrated approach improves reproducibility across diagnostic testing batches. For the patient, consistent reagent preparation supports accurate measurement of clinical biomarkers, enabling appropriate diagnosis and treatment.

3. Preparation of Culture Media and Digestion in Clinical Microbiology
Primary Use: Enables the safe heating, sterilization, and simultaneous mixing of solid or solidified culture media, agars, broths, and acid digests in heat-resistant glassware used in clinical microbiology, including preparing nutrient agar plates, slants, and broth tubes for pathogen isolation and antimicrobial susceptibility testing.

How it helps: For the clinical microbiology technologist, the LED Digital Heating Magnetic Stirrer (DMS5-280) ceramic-coated work plate ensures uniform heat distribution to prevent burning of sensitive media components, and the stirring function helps maintain a homogeneous suspension of ingredients. The high-temperature alert (50°C) helps prevent handling the work plate while it is dangerously hot, while the PT1000 external sensor provides precise temperature control for digestion procedures. For the patient, properly prepared culture media support accurate identification of pathogenic microorganisms, enabling appropriate antimicrobial therapy selection.

4. Pharmaceutical Quality Control and Drug Dissolution Testing
Primary Use: Used in pharmaceutical quality control laboratories to heat dissolution media to specified temperatures (e.g., 37°C ± 0.5°C) and maintain constant stirring during dissolution testing of solid dosage forms (tablets, capsules), and for preparing standard solutions, buffers, and mobile phases for high-performance liquid chromatography (HPLC) and other analytical methods.

How it helps: For the pharmaceutical QC analyst, the built-in dual temperature sensors monitor both the heating plate and the solution temperature for enhanced safety and process assurance. The robust ceramic coating provides excellent corrosion resistance and will not peel off, ensuring a long service life even when exposed to aggressive chemicals. The integrated timer (when present in some models) enhances bath-free, unattended operation for extended dissolution runs. For the patient, accurately prepared dissolution samples ensure reliable drug release data, which is a critical component of regulatory compliance and product safety.

SECONDARY & SUPPORTIVE USES

1. General solution preparation for analytical chemistry: Used for the efficient dissolution of solids and preparation of standard solutions, buffers, and mobile phases in pharmaceutical and food analysis quality control laboratories, ensuring homogeneity for high-performance liquid chromatography (HPLC) and other analytical testing, with the ability to heat up to 280°C for difficult-to-dissolve compounds.

2. Unattended operation with LED feedback: The LED display provides clear real-time monitoring of speed and temperature, ensuring operators can track parameters at a glance and maintain experimental consistency across batches.

3. Safe operation with over-temperature protection: The LED Digital Heating Magnetic Stirrer (DMS5-280) has an integrated overheating protection function; if the hotplate temperature exceeds 50°C, the screen will automatically flash a “HOT” warning to alert the user, which continues even when the unit is powered off, protecting users from burn hazards.

4. External temperature sensor support (PT1000): The LED Digital Heating Magnetic Stirrer (DMS5-280) supports connection of an optional PT1000 external temperature sensor for direct liquid temperature measurement, providing ±0.2°C temperature control accuracy and enabling precise feedback control loops for time- and temperature-critical experiments.

5. Heavy metal and trace element analysis sample digestion: Prepares liquid and digested samples for heavy metal analysis using atomic absorption spectroscopy or inductively coupled plasma mass spectrometry by heating samples in strong acids (e.g., nitric acid) with constant stirring to ensure complete digestion, with a chemical-resistant ceramic-coated plate suitable for aggressive acids.

6. Biological and biochemical research: Provides stable, reproducible heating and stirring for small-scale chemical synthesis, media optimization, protein purification, and enzyme reaction studies requiring precise, repeatable agitation and temperature control, with a uniform magnetic field optimized for synthetic biology workflows.

7. Chemical synthesis and organic reactions: The ceramic-coated plate is resistant to many reagents, and the stable heating module supports pharmaceutical and academic chemistry workflows, including solid-phase synthesis and general reaction kinetics studies at temperatures up to 280°C.

8. General and educational laboratory use: Serves as a versatile, user-friendly teaching tool for demonstrating the principles of solution preparation, chemical reaction kinetics, and the effect of heat on chemical systems in university chemistry and biology laboratory courses, with an intuitive LED display and safety features suitable for student use.

KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: An LED digital heating magnetic stirrer with a 5-inch ceramic-coated aluminum work plate and a brushless DC motor.
Designation: DMS5-280 LED Digital Heating Magnetic Stirrer, DLAB DMS5-280, 8021101412 (product number).
Key Components:
- 5-inch (Ø135mm) ceramic-coated aluminum work plate for uniform heat transfer and chemical durability
- Maintenance-free, spark-free brushless DC motor
- LED display with clear real-time monitoring of temperature and speed
- PT1000 external temperature sensor port (optional, ±0.2°C accuracy)
- Dual temperature sensor support for monitoring plate and solution temperatures
- Hot surface warning indicator (flashes "HOT" >50°C, even when power is off)
- Overheating protection (320°C hardware cutoff)
- Touch panel controls for simple, intuitive operation
- Ceramic-coated aluminum plate with strong acid and wear resistance

2. TECHNICAL & PERFORMANCE PROPERTIES

Work plate dimensions: Ø135 mm (5 inches).
Work plate material: Aluminum with ceramic coating (corrosion-resistant, excellent heat conductivity, wear-resistant).
Motor type: Maintenance-free brushless DC motor.
Stirring capacity (H₂O): Up to 5 liters.
Speed range: 50 to 1500 rpm (adjustable in 10 rpm increments).
Speed display: LED display.
Heating temperature range: Room temperature to 280°C (adjustable in 1°C increments).
Temperature display: LED display.
Temperature control accuracy: ±1°C (below 100°C) / ±1% (above 100°C).
External temperature sensor (PT1000) accuracy: ±0.2°C.
Temperature display accuracy: ±1°C.
Maximum stir bar length: 40 mm.
Motor output power: 3W.
Heating output power: 600W.
Total power consumption: 610W.
Overheating protection: 320°C (hardware cutoff specification).
Residual heat warning: Activates above 50°C; "HOT" indicator flashes until temperature drops below 50°C.
Protection class: IP21 (protection against solid objects over 12.5mm and vertically falling water drops).
Dimensions (L × W × H): 260 × 150 × 100 mm.
Weight: Approx. 1.8 kg.
Power requirements: 100–120V / 200–240V AC, 50/60 Hz (universal input).
Operating conditions: 5–40°C, ≤80% relative humidity.
Certifications: ISO, CE, GLP operational requirements.

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: Compact benchtop design with a corrosion-resistant aluminum housing and a small footprint (260×150×100mm), ideal for individual workstations and crowded benchtops.
Work plate: Ceramic-coated aluminum disc for enhanced corrosion resistance, rapid heat transfer, and easy cleaning; withstands strong acids and organic solvents commonly used in clinical and research labs.
Display: LED display provides clear, accurate real-time monitoring of both temperature and speed independently, ensuring precise control throughout experiments.
Operation: Simple, intuitive touch control panel for easy operation and control.
Stirring system: Brushless DC motor provides stable torque output and long operational life, ensuring consistent stirring performance and preventing decoupling even with viscous liquids.
Heating technology: Fast-response heating module for regulated thermal transfer across diverse sample matrices up to 280°C.
Safety functions: Residual heat warning ("HOT" indicator flashes >50°C even when power is off) and overheating protection (320°C hardware cutoff) protect users from burns and prevent instrument damage.
External sensor integration: PT1000 external temperature sensor port enables direct liquid temperature measurement with ±0.2°C accuracy for applications requiring precise sample temperature control.
Dual sensor support: Monitors both the heating plate and solution temperatures for enhanced safety and process assurance.
Spill resistance: IP21-rated housing offers basic protection against solid objects (>12.5mm) and vertically falling water drops.
Maintenance: Maintenance-free due to brushless DC motor design, eliminating the need for routine brush replacement. The ceramic-coated aluminum work plate is easy to clean and resistant to chemicals.

4. SAFETY & COMPLIANCE ATTRIBUTES

Regulatory Status: General laboratory equipment for in vitro diagnostic (IVD) use; conforms to ISO, CE, and GLP operational requirements; precision calibration and temperature accuracy testing performed.
Over-Temperature Protection: Integrated hardware over-temperature protection cuts off heating at 320°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 until it is safe to touch, protecting users from burn hazards.
Chemical Safety: The ceramic-coated aluminum work plate is resistant to strong acids, strong alkalis, and organic solvents, preventing corrosion and ensuring a long service life even when handling aggressive reagents.
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 basic protection against solid foreign objects and vertically falling water drops.
Dual Temperature Sensors: Monitors both the heating plate and solution temperatures, enhancing safety and process assurance when performing critical temperature-dependent protocols.
Fire Safety: Ceramic-coated work plate is non-flammable. All-metal housing provides good heat dissipation and fire protection.
Quality Compliance: Each unit undergoes precision calibration, temperature accuracy testing, and electrical safety validation to ensure traceable laboratory-grade performance.

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 (ensure "HOT" indicator is off) before storage if recently used.
Installation: Place on a stable, level, non-flammable benchtop away from flammable materials, solvents, and volatile chemicals. Allow at least 10 cm clearance on all sides for heat dissipation.
Cleaning: Allow the work plate to cool completely (verify "HOT" indicator is off) before cleaning. Wipe the ceramic-coated work plate and housing with a soft, damp cloth or sponge using mild detergent or 70% isopropyl alcohol. Do not immerse the unit in liquid. Do not use abrasive cleaners or metal scouring pads which may scratch the ceramic coating.
Pre-use inspection: Before each use, inspect the power cord and plug for damage. Ensure the work plate is clean and free of residues. Ensure the stir bar is in good condition without chips or cracks.
Operation with external sensor (PT1000): If using an optional PT1000 temperature sensor, insert the 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.
Stirring bar care: Use only magnetic stir bars in good condition and appropriate for the vessel size. For the DMS5-280 with a maximum stirring capacity of 5L, use stir bars up to 40 mm in length. Start stirring at a low speed (100–200 rpm) and gradually increase to the desired speed to prevent splashing or decoupling.
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.
Periodic verification: Verify temperature accuracy periodically using a calibrated external thermometer or thermocouple. If deviation exceeds specifications (±1°C below 100°C or ±1% above 100°C), consult the manufacturer's service guidelines for recalibration.

6. LABORATORY & CLINICAL APPLICATIONS

Primary Application: General purpose heating and stirring of liquids for clinical diagnostics (clinical chemistry sample preparation), pharmaceutical quality control (dissolution testing, buffer preparation), analytical chemistry (standard solution preparation), and research labs where precise, safe heating and stirring up to 280°C is required.
Clinical Role: A versatile and essential instrument for hospital and clinical laboratories, clinical chemistry departments, microbiology laboratories, pharmaceutical quality control facilities, and research institutions. Critical for reagent preparation, buffer mixing, media preparation, and temperature-critical diagnostic procedures where accurate, reproducible, and safe heating with simultaneous stirring is mandatory for diagnostic accuracy.

SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Burn Hazard: The ceramic-coated aluminum work plate can reach 280°C and remains 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 turns off. Use heat-resistant gloves or tools when handling vessels on the hot plate.
Fire Hazard: Do not operate the hotplate stirrer near flammable materials, volatile solvents, combustible gases, or paper products. Keep the work area clear of flammable substances. Do not leave the instrument unattended while operating at high temperatures.
Electrical Safety: Do not operate the instrument with wet hands. Disconnect the power cord before cleaning or servicing. Use only the supplied grounded power cord and ensure proper grounding. Do not operate if the power cord is damaged.
Chemical Compatibility: The ceramic-coated work plate is resistant to strong acids, strong alkalis, and organic solvents. However, some chemicals may produce toxic fumes when heated. Always use a fume hood when heating volatile or hazardous samples. Refer to Safety Data Sheets (SDS) for specific chemicals.
Spill Hazard: If a liquid spill occurs on the hot work plate during operation, turn off power immediately and allow to cool before cleaning. Standing liquids may cause thermal shock to the ceramic-coated plate.
Vessel Selection: Use only heat-resistant glassware (borosilicate glass such as Pyrex or Kimax) or other laboratory vessels rated for the operating temperature (up to 280°C). Do not use standard soda-lime glass or plastic vessels.
Training Requirement: Only trained laboratory personnel should operate the DMS5-280 LED Digital Heating Magnetic Stirrer for clinical diagnostic or research applications.

2. FIRST AID MEASURES

Burn from Hot Surface: If skin contacts the hot work plate or 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. Cover the burn with a sterile, non-adhesive dressing. Seek medical attention for large area burns, deep burns, or burns causing blistering.
Fire: If a fire occurs on or near the hotplate stirrer, 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.
Chemical Splash to Eyes: If a heated chemical sample or reagent splashes into the eyes, immediately flush eyes with copious amounts of cool water or sterile saline for at least 15 minutes. Seek immediate medical attention.
Chemical Splash to Skin: Remove contaminated clothing immediately. Flush the affected skin area with cool running water for at least 15 minutes. Seek medical evaluation for chemical burns or if irritation persists.
Inhalation of Fumes: If fumes from heated chemicals are inhaled, move the affected person to fresh air immediately. Seek immediate medical attention if breathing is difficult.
Electrical Shock: Disconnect power at the circuit breaker before attempting to assist the victim. Do not touch the victim until power is disconnected. Call emergency medical services immediately.

3. FIRE FIGHTING MEASURES

Flammability: The instrument's all-metal housing is non-flammable, but the power cord, internal wiring, and electronic components are combustible. The ceramic-coated work plate is non-flammable. The primary fire hazard is the flammable chemicals or solvents being heated.
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.
Fire Response: Immediately disconnect power to the instrument 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.
Special Protective Equipment for Firefighters: Firefighters should wear self-contained breathing apparatus (SCBA) and full structural firefighting gear when fighting fires in laboratory settings.

LED Digital Heating Magnetic Stirrer (DMS5-280)

LED Digital Heating Magnetic Stirrer (DMS5-280)

PRIMARY CLINICAL & DIAGNOSTIC USES

SECONDARY & SUPPORTIVE USES

2. Unattended operation with LED feedback: The LED display provides clear real-time monitoring of speed and temperature, ensuring operators can track parameters at a glance and maintain experimental consistency across batches.

7. Chemical synthesis and organic reactions: The ceramic-coated plate is resistant to many reagents, and the stable heating module supports pharmaceutical and academic chemistry workflows, including solid-phase synthesis and general reaction kinetics studies at temperatures up to 280°C.

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: An LED digital heating magnetic stirrer with a 5-inch ceramic-coated aluminum work plate and a brushless DC motor.

Designation: DMS5-280 LED Digital Heating Magnetic Stirrer, DLAB DMS5-280, 8021101412 (product number).

Key Components:

5-inch (Ø135mm) ceramic-coated aluminum work plate for uniform heat transfer and chemical durability

Maintenance-free, spark-free brushless DC motor

LED display with clear real-time monitoring of temperature and speed

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

Dual temperature sensor support for monitoring plate and solution temperatures

Hot surface warning indicator (flashes "HOT" >50°C, even when power is off)

Overheating protection (320°C hardware cutoff)

Touch panel controls for simple, intuitive operation

Ceramic-coated aluminum plate with strong acid and wear resistance

2. TECHNICAL & PERFORMANCE PROPERTIES

Work plate dimensions: Ø135 mm (5 inches).

Work plate material: Aluminum with ceramic coating (corrosion-resistant, excellent heat conductivity, wear-resistant).

Motor type: Maintenance-free brushless DC motor.

Stirring capacity (H₂O): Up to 5 liters.

Speed range: 50 to 1500 rpm (adjustable in 10 rpm increments).

Speed display: LED display.

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

Temperature display: LED display.

Temperature control accuracy: ±1°C (below 100°C) / ±1% (above 100°C).

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

Temperature display accuracy: ±1°C.

Maximum stir bar length: 40 mm.

Motor output power: 3W.

Heating output power: 600W.

Total power consumption: 610W.

Overheating protection: 320°C (hardware cutoff specification).

Residual heat warning: Activates above 50°C; "HOT" indicator flashes until temperature drops below 50°C.

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

Dimensions (L × W × H): 260 × 150 × 100 mm.

Weight: Approx. 1.8 kg.

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

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

Certifications: ISO, CE, GLP operational requirements.

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: Compact benchtop design with a corrosion-resistant aluminum housing and a small footprint (260×150×100mm), ideal for individual workstations and crowded benchtops.

Work plate: Ceramic-coated aluminum disc for enhanced corrosion resistance, rapid heat transfer, and easy cleaning; withstands strong acids and organic solvents commonly used in clinical and research labs.

Display: LED display provides clear, accurate real-time monitoring of both temperature and speed independently, ensuring precise control throughout experiments.

Operation: Simple, intuitive touch control panel for easy operation and control.

Stirring system: Brushless DC motor provides stable torque output and long operational life, ensuring consistent stirring performance and preventing decoupling even with viscous liquids.

Heating technology: Fast-response heating module for regulated thermal transfer across diverse sample matrices up to 280°C.

Safety functions: Residual heat warning ("HOT" indicator flashes >50°C even when power is off) and overheating protection (320°C hardware cutoff) protect users from burns and prevent instrument damage.

External sensor integration: PT1000 external temperature sensor port enables direct liquid temperature measurement with ±0.2°C accuracy for applications requiring precise sample temperature control.

Dual sensor support: Monitors both the heating plate and solution temperatures for enhanced safety and process assurance.

Spill resistance: IP21-rated housing offers basic protection against solid objects (>12.5mm) and vertically falling water drops.

Maintenance: Maintenance-free due to brushless DC motor design, eliminating the need for routine brush replacement. The ceramic-coated aluminum work plate is easy to clean and resistant to chemicals.

4. SAFETY & COMPLIANCE ATTRIBUTES

Regulatory Status: General laboratory equipment for in vitro diagnostic (IVD) use; conforms to ISO, CE, and GLP operational requirements; precision calibration and temperature accuracy testing performed.

Over-Temperature Protection: Integrated hardware over-temperature protection cuts off heating at 320°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 until it is safe to touch, protecting users from burn hazards.

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

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 basic protection against solid foreign objects and vertically falling water drops.

Dual Temperature Sensors: Monitors both the heating plate and solution temperatures, enhancing safety and process assurance when performing critical temperature-dependent protocols.

Fire Safety: Ceramic-coated work plate is non-flammable. All-metal housing provides good heat dissipation and fire protection.

Quality Compliance: Each unit undergoes precision calibration, temperature accuracy testing, and electrical safety validation to ensure traceable laboratory-grade performance.

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 (ensure "HOT" indicator is off) before storage if recently used.

Installation: Place on a stable, level, non-flammable benchtop away from flammable materials, solvents, and volatile chemicals. Allow at least 10 cm clearance on all sides for heat dissipation.

Pre-use inspection: Before each use, inspect the power cord and plug for damage. Ensure the work plate is clean and free of residues. Ensure the stir bar is in good condition without chips or cracks.

Operation with external sensor (PT1000): If using an optional PT1000 temperature sensor, insert the 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.

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.

Periodic verification: Verify temperature accuracy periodically using a calibrated external thermometer or thermocouple. If deviation exceeds specifications (±1°C below 100°C or ±1% above 100°C), consult the manufacturer's service guidelines for recalibration.

6. LABORATORY & CLINICAL APPLICATIONS

1. SAFETY PRECAUTIONS

Fire Hazard: Do not operate the hotplate stirrer near flammable materials, volatile solvents, combustible gases, or paper products. Keep the work area clear of flammable substances. Do not leave the instrument unattended while operating at high temperatures.

Electrical Safety: Do not operate the instrument with wet hands. Disconnect the power cord before cleaning or servicing. Use only the supplied grounded power cord and ensure proper grounding. Do not operate if the power cord is damaged.

Spill Hazard: If a liquid spill occurs on the hot work plate during operation, turn off power immediately and allow to cool before cleaning. Standing liquids may cause thermal shock to the ceramic-coated plate.

Vessel Selection: Use only heat-resistant glassware (borosilicate glass such as Pyrex or Kimax) or other laboratory vessels rated for the operating temperature (up to 280°C). Do not use standard soda-lime glass or plastic vessels.

Training Requirement: Only trained laboratory personnel should operate the DMS5-280 LED Digital Heating Magnetic Stirrer for clinical diagnostic or research applications.

2. FIRST AID MEASURES

Fire: If a fire occurs on or near the hotplate stirrer, 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.