LCD Digital Enhanced Magnetic Hotplate Stirrer (MS‑H‑ProM-with Timer)

WhatsApp Order

The LCD Digital Enhanced Magnetic Hotplate Stirrer (with Timer) is a premium, TÜV‑certified benchtop instrument engineered for accurate, safe, and consistent simultaneous heating and stirring – especially in challenging applications involving viscous liquids – in pharmaceutical bioprocessing, clinical diagnostics, and industrial research. Featuring a 5‑inch (φ135 mm) ceramic‑coated aluminum work plate, this enhanced hotplate stirrer delivers a heating range of room temperature to 340 °C (±1 °C accuracy in 1 °C increments) and a stirring speed range of 100 to 1500 rpm (±1 rpm accuracy) with a maximum stirring capacity of 20 litres of water.

Every LCD Digital Enhanced Magnetic Hotplate Stirrer is individually factory‑calibrated and supplied with a calibration certificate traceable to international standards. The high‑resolution LCD display simultaneously shows set and actual values for temperature, speed, and timer, providing complete operational visibility at a glance. The ceramic‑coated aluminum work plate resists strong acids, strong alkalis, and organic solvents, providing rapid, uniform heating without localised hot spots. Crucially, enhanced magnets and a high‑torque brushless DC motor guarantee outstanding stirring performance even with highly viscous liquids (e.g., 50 % glycerol, polymer melts), preventing stir bar decoupling and ensuring smooth, stable mixing.

Key user‑focused features for industrial and clinical workflows include three selectable heating modes (fast, standard, and steady) for optimal thermal control; a fully integrated programmable timer (1 min to 99 h 59 min) for fully unattended automated operation – with automatic heating shut‑off while continuing stirring to protect heat‑sensitive samples; an optional PT1000 external temperature sensor (±0.2 °C accuracy) for precise regulation of the actual sample liquid temperature; an RS232 remote control and data‑logging interface for GLP‑compliant experiment documentation; and the ability to run the instrument as a combined heating/stirring unit, a stirring‑only unit, or a heating‑only unit.

Safety is exemplary with TÜV certification (CE, cTUVus, FCC), dual independent safety circuits providing redundant over‑temperature protection (420 °C hardware cutoff), automatic short‑circuit power shut‑off via a second independent safety circuit, an independent residual heat warning indicator (“HOT” flashes on the display at >50 °C and continues even after the unit is turned off, including unplugged, until the plate is safe to touch), and IP21‑rated housing offering basic splash and dust protection. Smooth‑start technology and controlled deceleration of the enhanced magnetic drive minimize splashing and sample loss, even with heavy stir bars.

With a compact footprint (280 × 160 mm) and moderate weight (2.8 kg), the MS‑H‑ProM occupies minimal bench space while delivering high‑performance suitable for demanding industrial and clinical workflows. The instrument is backed by a 2‑year manufacturer’s warranty and is supported by a global distributor network.

For the pharmaceutical bioprocess scientist, industrial chemist, clinical laboratory technician, and trace element analyst, the LCD Digital Enhanced Magnetic Hotplate Stirrer delivers the high‑throughput versatility (20‑litre stirring capacity), high‑temperature performance (340 °C), advanced timer automation, and true regulatory‑grade safety required for sample digestion for trace element analysis (heavy metals, blood lead, urine cadmium), high‑viscosity formulation development, quality‑control sample preparation, and general‑purpose heating and mixing. For the patient, the reliable performance of this advanced, TÜV‑certified instrument ensures that diagnostic tests and pharmaceutical products are accurate, reproducible, and processed efficiently, directly supporting effective clinical decision‑making, appropriate treatment selection, and patient safety.

Compare

Add to wishlist

Description

LCD Digital Enhanced Magnetic Hotplate Stirrer (MS‑H‑ProM-with Timer)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Superior, Viscous‑Liquid‑Friendly Heating and Stirring for Advanced Formulation & Clinical Research
Primary Use: Provides a premium LCD digital stirring hotplate with a 5‑inch (φ135 mm) ceramic‑coated aluminum work plate, equipped with enhanced magnets and a high‑torque brushless DC motor. It is specifically designed for precise, uniform heating and simultaneous stirring of highly viscous clinical samples, biologics, and reagents in demanding pharmaceutical bioprocessing, industrial R&D, and advanced diagnostic laboratories. It features a maximum stirring capacity of 20 litres (water), a stepless digital speed range of 100 to 1500 rpm (±1 rpm accuracy), a heating temperature range from room temperature to 340 °C in 1 °C increments, plus a fully integrated programmable electronic timer and an RS232 interface for remote PC control and data logging.

How it helps: For pharmaceutical bioprocess scientists, industrial chemists, and clinical researchers, the powerful enhanced magnets and high‑torque brushless motor guarantee outstanding stirring performance even with high‑viscosity solutions that cause standard stir bars to decouple or stall. The three‑stage PID heating modes (fast, standard, and steady ramp profiles) allow users to choose the optimal thermal ramp for different sample consistencies, ensuring complete media and reagent homogeneity. The ceramic‑coated aluminum work plate provides fast, uniform heating and exceptional chemical resistance to acids, alkalis, and solvents, preserving the integrity of even corrosive biological formulations. The unit can be used in three independent modes: heated stirring, stirring‑only, or heating‑only, providing maximum workflow flexibility.

2. Precision Digestion and Uniform Sample Prep for Clinical Chemistry and Quality Control
Primary Use: Enables controlled sample digestion and dissolution of whole blood, serum, urine, tissue homogenates, and viscous biopolymers in strong acids or aggressive solvents at temperatures up to 340 °C, prior to trace element analysis by AAS or ICP‑MS. The optional external PT1000 temperature sensor (±0.2 °C accuracy) can be connected to provide precise closed‑loop control of the actual sample temperature, rather than just the plate surface.

How it helps: For toxicology labs processing patient samples for heavy‑metal screening (e.g., lead, mercury, cadmium), the 340 °C heating maximum and ±0.2 °C external‑sensor accuracy ensure complete, uniform ashing of organic matrices in challenging digest protocols, including those required for regulatory‑grade environmental and food testing. The smooth acceleration and deceleration technology prevents splashing and spillage when the stir bar is engaged and disengaged in viscous matrices, protecting both the operator and the work area. The built‑in smooth‑start technology ensures that heavy magnetic bars couple properly without violent spinning, preserving sample integrity and preventing aerosol formation.

3. Extended‑Duration, Unattended Preparation of Culture Media and Quality Control Reagents
Primary Use: Used for the safe, uniform heating and melting of solid or semi‑solid culture media, high‑viscosity nutrient agars, and agarose gels in beakers or flasks, as well as the preparation of temperature‑sensitive standard solutions and quality‑control reagents for high‑throughput molecular diagnostics and clinical microbiology. An integrated, programmable timer (1 min to 99 h 59 min) can be set to stop heating (while optionally continuing stirring) for fully unattended operation.

How it helps: For microbiology and molecular‑diagnostics technologists, the 20‑litre stirring capacity and ability to heat large volumes of media up to 340 °C (1 °C increments) allow the preparation of dozens of culture plates or electrophoresis gels in a single batch. The programmable timer can be set to pause heating at a precise moment while continuing stirring, allowing the media to cool gently without operator supervision – dramatically reducing the risk of scorching or contaminating sensitive formulations. The integrated interval timer significantly enhances laboratory throughput and reproducibility by enabling precise, unattended process control. The independent “HOT” warning circuit works even when the unit is off; if the plate exceeds 50 °C after the power is switched off, “HOT” continues flashing until it is safe to touch, protecting users from delayed‑onset burns.

4. Optimal Workflow Automation and Regulatory‑Grade Control for Modern Clinical QC
Primary Use: The LCD Digital Enhanced Magnetic Hotplate Stirrer is equipped with an RS232 data interface, which enables remote PC control, real‑time monitoring of stirrer and heater parameters, and full experiment‑data logging for Good Laboratory Practice (GLP) compliance. It also incorporates enhanced electronic safety features: dual independent safety circuits (over‑temperature cutoff at 420 °C, short‑circuit power shutdown), an independent electronic “HOT” residual heat warning sensor at 50 °C, and IP21 splash protection.

How it helps: Quality‑control supervisors and regulatory officers can connect the instrument to a laboratory computer via the RS232 interface to document time, temperature, and stirring‑speed logs for every batch, ensuring GLP‑compliant audit trails and robust product release data. The dual safety circuits provide redundant over‑temperature protection (420 °C cutoff), and if a short circuit is detected, the second safety circuit will automatically cut off power to ensure the absolute safety of personnel, even if the primary control system fails. The IP21‑rated metal housing offers reliable protection from dust and small liquid spills in a busy quality‑control environment. For the patient, these comprehensive safety and data features dramatically reduce the risk of procedural errors, contributing to faster, more reliable diagnostic results and safer pharmaceutical and biologic products.

SECONDARY & SUPPORTIVE USES

1. General chemical synthesis and reflux for pharmaceutical research: Provides stable, uniform heating and mixing for organic compound synthesis, distillation, and reflux in round‑bottom flasks, with a maximum stirring capacity of 20 litres and temperatures up to 340 °C – suitable for fine chemical, petrochemical, and pharmaceutical manufacturing processes.

2. Extended‑duration, unattended preparation of culture media and quality control reagents: Used for the safe, uniform heating and melting of solid or semi‑solid culture media, high‑viscosity nutrient agars, and agarose gels in beakers or flasks, as well as the preparation of temperature‑sensitive standard solutions and quality‑control reagents for high‑throughput molecular diagnostics and clinical microbiology. An integrated, programmable timer (1 min to 99 h 59 min) can be set to stop heating while optionally continuing stirring for fully unattended operation.

3. Dissolution testing and early‑stage drug development: Offers precise heating to simulate dissolution test conditions for solid dosage forms (tablets, capsules) in beakers, and enables accelerated stability testing of new chemical entities at elevated temperatures.

4. Solvent evaporation and concentration for analytical chemistry: Gently heats organic solvents in beakers or round‑bottom flasks to remove volatile components and concentrate analytes in environmental, food safety, and pharmaceutical testing applications, using the PT1000 external sensor for controlled evaporation rates.

5. Heating metal blocks and micro‑tubes: Accommodates metal heating blocks for test tubes, 0.2 mL PCR tubes, 1.5 mL microcentrifuge tubes, and deep‑well plates, supporting bead‑based DNA extraction, metal‑bath incubations, and small‑scale clinical chemistry tests across 48–96 samples per run.

6. Protein denaturation and enzyme inactivation in biochemistry: Heats protein solutions in flasks to temperatures above 70 °C to completely denature enzymes and coagulate proteins, stopping enzymatic reactions for downstream protein purification and enzyme assay workflows.

7. High‑viscosity polymer research and industrial bioprocessing: Specifically engineered with enhanced magnets and a powerful motor to effectively stir viscous liquids such as 50 % glycerol solutions, concentrated polymer melts, and dense biological slurries, where standard stirrers would stall or decouple.

8. Educational and advanced teaching laboratory heating: Serves as a versatile, user‑friendly teaching tool for university chemistry, clinical laboratory science, and pharmaceutical lab courses, demonstrating precise temperature regulation, magnetic stirring, and reaction kinetics in a compact, rugged unit.

KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: A programmable, high‑precision LCD digital heating stirrer with a round ceramic‑coated work plate.
Designation: LCD Digital Enhanced Magnetic Hotplate Stirrer LCD Digital Enhanced Magnetic Hotplate Stirrer (with Timer); DLAB LCD Digital Enhanced Magnetic Hotplate Stirrer.
Catalog Number: 8035221110 | 8030122111.
Key Components:
- 5‑inch (φ135 mm) high‑polish, ceramic‑coated aluminum work plate – fast, uniform heating and extreme chemical resistance.
- Enhanced rare‑earth magnets and high‑torque, maintenance‑free, spark‑free brushless DC motor (explosion‑proof).
- High‑resolution LCD display showing real‑time temperature, stirring speed, timer status, and setpoint values simultaneously.
- PID temperature control technology with a 340 °C maximum heating limit.
- PT1000 external temperature sensor port (±0.2 °C control accuracy).
- Three selectable, pre‑programmed heating modes: fast, standard, and steady (precise thermal ramp control).
- Fully integrated programmable electronic timer (1 minute to 99 hours 59 minutes).
- Independent “HOT” residual heat warning – flashes on LCD above 50 °C, continues even after power off if still connected to mains.
- Dual independent safety circuits: 420 °C over‑temperature cutoff plus short‑circuit power shutdown – second circuit cuts power to ensure human safety.
- RS232 data interface for remote PC control and GLP‑compliant data logging.
- IP21‑rated housing (protection against solids >12.5 mm and vertically falling water drops).
- Smooth‑start technology for stable spin‑up and deceleration, prevents spillage in viscous samples.

2. TECHNICAL & PERFORMANCE PROPERTIES

Work Plate Dimensions: φ135 mm (5 inches).
Work Plate Material: Aluminum with ceramic coating (fast heat transmission, strong acid‑resistant, strong alkali‑resistant, easy to clean).
Motor Type: Maintenance‑free, spark‑free brushless DC motor.
Motor Rating Input: 18 W.
Motor Rating Output: 10 W.
Stirring Capacity (H₂O): Up to 20 litres.
Speed Range: 100 to 1500 rpm (adjustable in 1 rpm increments).
Speed Display Accuracy: ±1 rpm.
Heating Temperature Range: Room temperature to 340 °C (adjustable in 1 °C increments).
Temperature Control Accuracy (Plate Surface): ±1 °C (<100 °C), ±1 % (>100 °C).
Temperature Display Accuracy: ±0.1 °C.
External Temperature Sensor (PT1000) Accuracy: ±0.2 °C.
Heating Control: PID technology with three selectable programs.
Heating Output Power: 600 W.
Total Power Consumption: 720 W.
Over‑Temperature Protection: 420 °C hardware cutoff (dual independent safety circuits).
Short‑Circuit Protection: Second independent safety circuit automatically cuts power to ensure human safety.
Residual Heat Warning: Independent electronic sensor; activates at 50 °C; “HOT” flashes on LCD even after unit is powered off until plate cools below 50 °C.
Timer Range: 1 minute to 99 hours 59 minutes (integrated programmable).
Number of Stirring Positions: 1.
Maximum Stir Bar Length: 80 mm.
Data Interface: RS232.
Protection Class: IP21.
Power Requirements: 100–120 V / 200–240 V, 50/60 Hz (universal input, user‑selectable by region).
Dimensions (W × D × H): 160 × 280 × 100 mm.
Weight: 2.8 kg.
Operating Conditions: 5–40 °C, ≤80 % relative humidity.
Certifications: TÜV‑certified (CE, cTUVus, FCC); meets DIN/EN 60529 (IP code), IEC/EN 61010‑1 safety requirements for laboratory electrical equipment.

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: Durable, fully enclosed metal (aluminum) housing with a powder‑coated finish. The ceramic‑coated aluminum work plate is resistant to strong acids, strong alkalis, and organic solvents, preventing corrosion and ensuring a long service life. The flame‑retardant metal housing ensures compliance with modern laboratory safety requirements and provides excellent fire protection. IP21‑rated housing provides basic protection against solid foreign objects (>12.5 mm) and vertically falling water drops.
Work Plate: 5‑inch (φ135 mm) high‑polish aluminum disc with ceramic coating, providing fast and uniform heat distribution, strong chemical resistance, and easy cleaning.
Enhanced Magnetic Stirring System: The instrument uses a powerful magnetic coupling system where strong enhanced magnets drive an internal stir bar inside the vessel. The system is specifically engineered for outstanding performance in the stirring of viscous liquids; smooth acceleration and deceleration ensure stable running without spillage. The brushless DC motor provides stable torque, extended life, and ultra‑quiet, vibration‑free operation.
Display: High‑contrast LCD digital display simultaneously shows actual temperature, set temperature, stirring speed, and timer status in real‑time, providing complete operational visibility without toggling between parameters.
Operation: Simple, intuitive digital controls with dedicated buttons for temperature, speed, and timer programming. Incremental 1 °C temperature adjustment and 1 rpm speed resolution allow precise setting of experimental parameters. The smooth‑start technology ensures that heavy magnetic bars couple properly without violent spinning, preserving sample integrity and preventing aerosol formation.
Heating Technology: PID controller ensures stable, overshoot‑free temperature regulation (with or without the external PT1000 sensor). Three Heating Modes:
- Mode A (Fast Heating): Rapid ramp‑up with some overshoot – ideal for applications requiring quick temperature attainment.
- Mode B (Standard Heating): Balanced ramp‑up and overshoot – suitable for most general‑purpose heating applications.
- Mode C (Steady Heating): Slow, precise ramp‑up with minimal overshoot – designed for applications where the sample is extremely sensitive to temperature fluctuations and overshoot.
Timer Function: Programmable timer from 1 minute to 99 hours 59 minutes. When the countdown expires, the system will keep stirring but will automatically turn off heating to keep the sample safe from thermal degradation. This feature protects expensive or sensitive heat‑labile samples from damage during unattended runs and allows the media to cool gently under continued agitation.
Safety Functions:
- Dual Independent Safety Circuits: Two independent safety circuits continuously monitor system status. If overheating (plate exceeds 420 °C) or a built‑in sensor malfunction is detected, the machine reports an error and stops heating. If the first safety circuit fails and a short circuit occurs, the second safety circuit cuts off the power supply to ensure operator safety.
- Residual Heat Warning (“HOT” Indicator): The “HOT” safety indicator activates when the work plate temperature exceeds 50 °C and continues flashing on the LCD display even after the unit is turned off (if still connected to mains). This critical safety feature alerts users to the dangerously hot surface until the plate is safe to touch (temperature drops below 50 °C).
- 420 °C Over‑Temperature Protection (Hardware Cutoff): A separate thermal cut‑off sensor shuts down heating if the work plate exceeds 420 °C, preventing runaway heating, fire hazards, and sample destruction even if the primary control system fails.
- Short‑Circuit Power Shutdown: If a short circuit is detected, the second independent safety circuit will cut off the power to ensure human safety.
- IP21 Protection Class: The IP21‑rated housing (DIN/EN 60529) provides protection against solid foreign objects >12.5 mm and vertically falling water drops (basic splash protection), ensuring reliable service in busy laboratory environments.
External Sensor Integration: PT1000 external temperature sensor port enables direct closed‑loop control of the actual sample liquid temperature. When the optional PT1000 sensor is connected, the controller regulates the heater based on the actual sample temperature (rather than the plate surface temperature), providing higher precision (±0.2 °C control accuracy) for sensitive applications. If any abnormal situation is detected (e.g., sensor failure or disconnection), the heating mode will automatically shut down as a safety precaution.
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 laboratory workflows.
Spill Protection: IP21‑rated metal housing offers protection against solid foreign objects >12.5 mm and vertically falling water drops. The ceramic‑coated work plate is chemical‑resistant and easy to clean.
Portability: Compact benchtop design with a small footprint of 280 × 160 mm and moderate weight (2.8 kg), easily moved between workstations. Ideal for placement in fume hoods and glove boxes.
Maintenance: The brushless DC motor is maintenance‑free, requiring no routine brush replacement or lubrication. The ceramic‑coated aluminum work plate is easy to clean with a mild detergent and soft, damp cloth.

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. If the sensor fails, the machine will stop heating and display an error. When the first safety circuit fails and a short circuit is detected, the second safety circuit cuts off the power supply to ensure operator safety.
Residual Heat Warning: 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 alerts users to the dangerously hot surface until the plate is safe to touch (temperature drops below 50 °C).
Over‑temperature Protection (Hardware): 420 °C hardware cutoff prevents runaway heating and fire hazards, even if the primary control system fails.
Short‑Circuit Protection: If a short circuit is detected, the second independent safety circuit will cut off the power to ensure human safety.
Timer Safety: Integrated programmable timer turns off heating automatically when the countdown finishes, allowing the sample to cool safely while continuing stirring to prevent thermal degradation.
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 such as concentrated nitric acid for sample digestion.
Fire Safety: Flame‑retardant metal housing, ceramic‑coated work plate, and IP21‑rated construction provide excellent fire protection and heat dissipation.
Electrical Safety: Designed with a brushless, spark‑free DC motor (explosion‑proof), making the instrument 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 individually factory‑calibrated and supplied with a calibration certificate traceable to international standards. The instrument is backed by a 2‑year manufacturer’s warranty and meets international laboratory safety standards (CE, TÜV, etc.).

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.
Installation: Place the instrument on a stable, level, non‑flammable, heat‑resistant laboratory benchtop away from flammable materials, volatile solvents, combustible gases, and 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 the work plate to cool completely (verify “HOT” indicator is off) before cleaning. Wipe the ceramic‑coated aluminum work plate and metal 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 or metal‑scouring pads, which may scratch the ceramic coating.
Pre‑use inspection: Before each use, inspect the power cord and plug for any damage. Ensure the work plate is clean, dry, and free of chemical residues. Verify that the area is clear of flammable materials and that the instrument has adequate clearance (at least 10 cm) for heat dissipation. Check that the stir bar is in good condition without chips or cracks and is appropriate for the vessel size. Verify that the PT1000 external sensor (if used) is fully functional and free of insulation damage.
Operation (General): Turn on the main power. Place the stirring vessel (e.g., a beaker or 500 mL round‑bottom flask) centrally on the work plate and add the magnetic stir bar (maximum length 80 mm). Set the desired temperature (using the digital controls, 1 °C increments) and stirring speed (100–1500 rpm) via the instrument’s digital control panel. The LCD display will show the actual temperature and speed. Because of the enhanced magnets, the stir bar will couple securely; however, always start stirring at a low speed (100–300 rpm) to gradually engage the viscous load before increasing to the target speed.
Operation – Heating Mode Selection: The instrument offers three selectable built‑in heating modes – fast heating (rapid ramp‑up with some overshoot), standard heating (balanced ramp‑up and overshoot), and steady heating (slow ramp‑up with minimal overshoot). Choose the appropriate mode based on the application’s sensitivity to temperature overshoot.
Operation with external sensor (PT1000, optional accessory): If using the optional PT1000 external temperature sensor, insert the sensor probe into the sample vessel and secure it with a suitable stand and clamp (sold separately). Do not allow the sensor cable to contact the hot work plate, as this may melt the wire insulation and cause sensor failure or an electrical hazard. If any abnormal situation is detected, the heating mode will automatically shut down.
Timer operation: Program the timer for the desired heating and stirring duration. When the timer reaches zero, the unit automatically stops heating but continues stirring, and the buzzer sounds to alert the operator. The stir bar remains engaged, allowing the sample to cool gently while remaining under agitation. This prevents thermal degradation of heat‑sensitive samples and eliminates the risk of sample damage due to sudden stoppage. Press any button to silence the buzzer. The timer can also be deactivated if not needed.
Cooling down: After use, turn off the main power and allow the work plate to cool completely. Cooling time may take 30–60 minutes, depending on the operating temperature. Do not attempt to move, clean, or store the instrument until the “HOT” residual heat warning indicator has stopped flashing and the plate has cooled to a safe temperature.
Periodic verification: Verify the temperature accuracy periodically using a calibrated external thermometer or thermocouple. If deviation from the setpoint exceeds the specified tolerance (±1 °C (<100 °C) or ±1 % (>100 °C)), consult the manufacturer’s service guidelines for recalibration.

6. LABORATORY & CLINICAL APPLICATIONS

Primary Application: General‑purpose, high‑precision heating and stirring for industrial clinical diagnostics (trace element digestion for heavy metal testing – blood lead, urine cadmium, heavy metals), viscous liquid processing (polymer synthesis, high‑viscosity formulations), pharmaceutical quality control, analytical chemistry (reflux, distillation), food and feed safety analysis, environmental testing, and academic research laboratories where precise, safe, and uniform heating up to 340 °C with exceptional stirring performance for viscous or challenging samples is required.

Clinical Role: A versatile, essential bench‑level instrument for industrial pharmaceutical R&D and quality control, hospital and clinical chemistry laboratories, toxicology departments (heavy metal testing for blood lead, urine cadmium), analytical chemistry departments, environmental testing stations, food safety laboratories, and research institutions. Critical for batch sample digestion for trace element analysis, 20‑litre capacity quality‑control sample preparation (buffers, standards), culture media preparation (agars, broths), and any application where precise, safe, and versatile heating with high‑torque stirring for viscous samples is mandatory for diagnostic accuracy, regulatory compliance, and laboratory efficiency.

SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Burn Hazard: The ceramic‑coated aluminum work plate can reach 340 °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 stops flashing. Use appropriate heat‑resistant gloves or tools when handling vessels on the hot plate. Severe burns can occur upon contact. The “HOT” warning continues even after the unit is turned off (if still connected to mains) until the plate cools below 50 °C – always verify the indicator has stopped flashing before touching the 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. 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 (420 °C cutoff) provides backup protection but should not replace operator vigilance.
Magnetic Field Interference: The stirrer contains strong, enhanced 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. The enhanced magnets used for viscous liquid stirring produce a stronger magnetic field than standard stirrers. 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 ceramic‑coated 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 viscous liquids, a longer or larger‑diameter stir bar (up to 80 mm) may be required, but always ensure it spins freely without contacting the vessel walls.
Start Slowly (Smooth Acceleration): Always start stirring at the lowest speed (100 rpm) and gradually increase to the desired level. The instrument’s smooth acceleration technology reduces splashing, but a sudden high‑speed start may still cause the stir bar to decouple, spin erratically, or strike the vessel wall, leading to splashing, spillage, or vessel breakage. This is especially critical when stirring viscous liquids, as the delayed coupling can cause violent spinning once engaged.
Electrical Safety: 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.
Chemical Compatibility: The ceramic‑coated aluminum 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 sulfuric acid) or aggressive organic solvents may degrade the coating. 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: 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.
Operating Environment: Use the LCD Digital Enhanced Magnetic Hotplate Stirrer indoors only, on a stable, level, non‑flammable laboratory benchtop. Do not use in explosive atmospheres or in the presence of flammable gases or vapors. 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: 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 the sensor is disconnected or fails during operation (indicated by an error code on the LCD), the heating mode will automatically shut down as a safety precaution. Always inspect the sensor cable for damage before use.
Timer and Unattended Operation: The programmable timer can be used for unattended operation (e.g., overnight digestions). When the timer reaches zero, the unit automatically stops heating but continues stirring. This prevents thermal degradation of samples but does not eliminate the risk of fire or electrical fault. Always verify that the timer is correctly set and that the work area is free of flammable materials before initiating unattended operation. Do not rely solely on the timer for safety; periodically check the instrument when running extended protocols.
Cleaning and Maintenance: Unplug the unit and allow the work plate to cool completely (verify “HOT” indicator has stopped flashing) before cleaning. Wipe the ceramic‑coated work plate and the metal 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 ceramic coating. 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.
Over‑Temperature and Short‑Circuit Protection: The instrument has dual independent safety circuits. If the work plate exceeds 420 °C, the unit will automatically stop heating and display an error message. If a short circuit is detected, the second safety circuit will cut off power. While these features provide redundancy, they are not a substitute for proper laboratory safety practices. Do not disable or bypass any safety features.
Training Requirement: Only trained laboratory personnel with appropriate technical background in hotplate stirrer operation should operate the LCD Digital Enhanced Magnetic Hotplate Stirrer 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 independent channel controls (where applicable), the proper procedure for starting and stopping stir bars, and the specific safety considerations for heating and stirring viscous or hazardous materials.

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 jewelry 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 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. 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 metal housing is non‑flammable, but the power cord, internal wiring, electronic components, and plastic control elements are combustible. The ceramic‑coated work plate is non‑flammable. The primary fire hazard is the flammable chemicals, solvents, or materials being heated or stirred.
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 Enhanced Magnetic Hotplate Stirrer (MS‑H‑ProM-with Timer)

LCD Digital Enhanced Magnetic Hotplate Stirrer (MS‑H‑ProM-with Timer)

PRIMARY CLINICAL & DIAGNOSTIC USES

SECONDARY & SUPPORTIVE USES

3. Dissolution testing and early‑stage drug development: Offers precise heating to simulate dissolution test conditions for solid dosage forms (tablets, capsules) in beakers, and enables accelerated stability testing of new chemical entities at elevated temperatures.

6. Protein denaturation and enzyme inactivation in biochemistry: Heats protein solutions in flasks to temperatures above 70 °C to completely denature enzymes and coagulate proteins, stopping enzymatic reactions for downstream protein purification and enzyme assay workflows.

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: A programmable, high‑precision LCD digital heating stirrer with a round ceramic‑coated work plate.

Designation: LCD Digital Enhanced Magnetic Hotplate Stirrer LCD Digital Enhanced Magnetic Hotplate Stirrer (with Timer); DLAB LCD Digital Enhanced Magnetic Hotplate Stirrer.

Catalog Number: 8035221110 | 8030122111.

Key Components:

5‑inch (φ135 mm) high‑polish, ceramic‑coated aluminum work plate – fast, uniform heating and extreme chemical resistance.

Enhanced rare‑earth magnets and high‑torque, maintenance‑free, spark‑free brushless DC motor (explosion‑proof).

High‑resolution LCD display showing real‑time temperature, stirring speed, timer status, and setpoint values simultaneously.

PID temperature control technology with a 340 °C maximum heating limit.

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

Three selectable, pre‑programmed heating modes: fast, standard, and steady (precise thermal ramp control).

Fully integrated programmable electronic timer (1 minute to 99 hours 59 minutes).

Independent “HOT” residual heat warning – flashes on LCD above 50 °C, continues even after power off if still connected to mains.

Dual independent safety circuits: 420 °C over‑temperature cutoff plus short‑circuit power shutdown – second circuit cuts power to ensure human safety.

RS232 data interface for remote PC control and GLP‑compliant data logging.

IP21‑rated housing (protection against solids >12.5 mm and vertically falling water drops).

Smooth‑start technology for stable spin‑up and deceleration, prevents spillage in viscous samples.

2. TECHNICAL & PERFORMANCE PROPERTIES

Work Plate Dimensions: φ135 mm (5 inches).

Work Plate Material: Aluminum with ceramic coating (fast heat transmission, strong acid‑resistant, strong alkali‑resistant, easy to clean).

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

Motor Rating Input: 18 W.

Motor Rating Output: 10 W.

Stirring Capacity (H₂O): Up to 20 litres.

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

Speed Display Accuracy: ±1 rpm.

Heating Temperature Range: Room temperature to 340 °C (adjustable in 1 °C increments).

Temperature Control Accuracy (Plate Surface): ±1 °C (<100 °C), ±1 % (>100 °C).

Temperature Display Accuracy: ±0.1 °C.

External Temperature Sensor (PT1000) Accuracy: ±0.2 °C.

Heating Control: PID technology with three selectable programs.

Heating Output Power: 600 W.

Total Power Consumption: 720 W.

Over‑Temperature Protection: 420 °C hardware cutoff (dual independent safety circuits).

Short‑Circuit Protection: Second independent safety circuit automatically cuts power to ensure human safety.

Residual Heat Warning: Independent electronic sensor; activates at 50 °C; “HOT” flashes on LCD even after unit is powered off until plate cools below 50 °C.

Timer Range: 1 minute to 99 hours 59 minutes (integrated programmable).

Number of Stirring Positions: 1.

Maximum Stir Bar Length: 80 mm.

Data Interface: RS232.

Protection Class: IP21.

Power Requirements: 100–120 V / 200–240 V, 50/60 Hz (universal input, user‑selectable by region).

Dimensions (W × D × H): 160 × 280 × 100 mm.

Weight: 2.8 kg.

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

Certifications: TÜV‑certified (CE, cTUVus, FCC); meets DIN/EN 60529 (IP code), IEC/EN 61010‑1 safety requirements for laboratory electrical equipment.

3. PHYSICAL & OPERATIONAL PROPERTIES

Work Plate: 5‑inch (φ135 mm) high‑polish aluminum disc with ceramic coating, providing fast and uniform heat distribution, strong chemical resistance, and easy cleaning.

Display: High‑contrast LCD digital display simultaneously shows actual temperature, set temperature, stirring speed, and timer status in real‑time, providing complete operational visibility without toggling between parameters.

Heating Technology: PID controller ensures stable, overshoot‑free temperature regulation (with or without the external PT1000 sensor). Three Heating Modes:

Mode A (Fast Heating): Rapid ramp‑up with some overshoot – ideal for applications requiring quick temperature attainment.

Mode B (Standard Heating): Balanced ramp‑up and overshoot – suitable for most general‑purpose heating applications.

Mode C (Steady Heating): Slow, precise ramp‑up with minimal overshoot – designed for applications where the sample is extremely sensitive to temperature fluctuations and overshoot.

Safety Functions:

420 °C Over‑Temperature Protection (Hardware Cutoff): A separate thermal cut‑off sensor shuts down heating if the work plate exceeds 420 °C, preventing runaway heating, fire hazards, and sample destruction even if the primary control system fails.

Short‑Circuit Power Shutdown: If a short circuit is detected, the second independent safety circuit will cut off the power to ensure human safety.

IP21 Protection Class: The IP21‑rated housing (DIN/EN 60529) provides protection against solid foreign objects >12.5 mm and vertically falling water drops (basic splash protection), ensuring reliable service in busy laboratory environments.

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 laboratory workflows.

Spill Protection: IP21‑rated metal housing offers protection against solid foreign objects >12.5 mm and vertically falling water drops. The ceramic‑coated work plate is chemical‑resistant and easy to clean.

Portability: Compact benchtop design with a small footprint of 280 × 160 mm and moderate weight (2.8 kg), easily moved between workstations. Ideal for placement in fume hoods and glove boxes.

Maintenance: The brushless DC motor is maintenance‑free, requiring no routine brush replacement or lubrication. The ceramic‑coated aluminum work plate is easy to clean with a mild detergent and soft, damp cloth.

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.

Over‑temperature Protection (Hardware): 420 °C hardware cutoff prevents runaway heating and fire hazards, even if the primary control system fails.

Short‑Circuit Protection: If a short circuit is detected, the second independent safety circuit will cut off the power to ensure human safety.

Timer Safety: Integrated programmable timer turns off heating automatically when the countdown finishes, allowing the sample to cool safely while continuing stirring to prevent thermal degradation.

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 such as concentrated nitric acid for sample digestion.

Fire Safety: Flame‑retardant metal housing, ceramic‑coated work plate, and IP21‑rated construction provide excellent fire protection and heat dissipation.

Electrical Safety: Designed with a brushless, spark‑free DC motor (explosion‑proof), making the instrument 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 individually factory‑calibrated and supplied with a calibration certificate traceable to international standards. The instrument is backed by a 2‑year manufacturer’s warranty and meets international laboratory safety standards (CE, TÜV, etc.).

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.

Periodic verification: Verify the temperature accuracy periodically using a calibrated external thermometer or thermocouple. If deviation from the setpoint exceeds the specified tolerance (±1 °C (<100 °C) or ±1 % (>100 °C)), consult the manufacturer’s service guidelines for recalibration.

6. LABORATORY & CLINICAL APPLICATIONS

6. Protein denaturation and enzyme inactivation in biochemistry: Heats protein solutions in flasks to temperatures above 70 °C to completely denature enzymes and coagulate proteins, stopping enzymatic reactions for downstream protein purification and enzyme assay workflows.

Catalog Number: 8035221110 | 8030122111.

5‑inch (φ135 mm) high‑polish, ceramic‑coated aluminum work plate – fast, uniform heating and extreme chemical resistance.

PID temperature control technology with a 340 °C maximum heating limit.

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

Fully integrated programmable electronic timer (1 minute to 99 hours 59 minutes).

Independent “HOT” residual heat warning – flashes on LCD above 50 °C, continues even after power off if still connected to mains.

Dual independent safety circuits: 420 °C over‑temperature cutoff plus short‑circuit power shutdown – second circuit cuts power to ensure human safety.

IP21‑rated housing (protection against solids >12.5 mm and vertically falling water drops).

Work Plate Dimensions: φ135 mm (5 inches).

Motor Rating Input: 18 W.

Motor Rating Output: 10 W.

Stirring Capacity (H₂O): Up to 20 litres.

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

Speed Display Accuracy: ±1 rpm.

Heating Temperature Range: Room temperature to 340 °C (adjustable in 1 °C increments).

Temperature Control Accuracy (Plate Surface): ±1 °C (<100 °C), ±1 % (>100 °C).

Temperature Display Accuracy: ±0.1 °C.

External Temperature Sensor (PT1000) Accuracy: ±0.2 °C.

Heating Output Power: 600 W.

Total Power Consumption: 720 W.

Over‑Temperature Protection: 420 °C hardware cutoff (dual independent safety circuits).

Residual Heat Warning: Independent electronic sensor; activates at 50 °C; “HOT” flashes on LCD even after unit is powered off until plate cools below 50 °C.

Timer Range: 1 minute to 99 hours 59 minutes (integrated programmable).

Maximum Stir Bar Length: 80 mm.

Power Requirements: 100–120 V / 200–240 V, 50/60 Hz (universal input, user‑selectable by region).

Dimensions (W × D × H): 160 × 280 × 100 mm.

Weight: 2.8 kg.

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

Certifications: TÜV‑certified (CE, cTUVus, FCC); meets DIN/EN 60529 (IP code), IEC/EN 61010‑1 safety requirements for laboratory electrical equipment.

Work Plate: 5‑inch (φ135 mm) high‑polish aluminum disc with ceramic coating, providing fast and uniform heat distribution, strong chemical resistance, and easy cleaning.

420 °C Over‑Temperature Protection (Hardware Cutoff): A separate thermal cut‑off sensor shuts down heating if the work plate exceeds 420 °C, preventing runaway heating, fire hazards, and sample destruction even if the primary control system fails.

IP21 Protection Class: The IP21‑rated housing (DIN/EN 60529) provides protection against solid foreign objects >12.5 mm and vertically falling water drops (basic splash protection), ensuring reliable service in busy laboratory environments.

Spill Protection: IP21‑rated metal housing offers protection against solid foreign objects >12.5 mm and vertically falling water drops. The ceramic‑coated work plate is chemical‑resistant and easy to clean.

Portability: Compact benchtop design with a small footprint of 280 × 160 mm and moderate weight (2.8 kg), easily moved between workstations. Ideal for placement in fume hoods and glove boxes.

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, even if the primary control system fails.

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.