Heating Plate (DHP4-550)

WhatsApp Order

The Heating Plate (DHP4-550) is a compact, precision benchtop heating instrument engineered for accurate, safe, and reproducible heating of clinical samples, reagents, biological specimens, and laboratory solutions in clinical diagnostics, molecular biology, microbiology, and pharmaceutical research. Featuring a 4-inch (100×100 mm) glass ceramic work plate that resists strong acids, strong alkalis, and high temperatures, this hot plate provides a temperature range from room temperature up to 550°C with ±1°C temperature control accuracy and 1°C setting increments.

Every Heating Plate (DHP4-550) is equipped with an integrated LCD display that simultaneously shows set temperature and real-time temperature, a programmable timer from 1 minute to 99 hours 59 minutes that automatically stops heating on completion, and a safety lock to prevent accidental changes to operating status. The PT1000 external temperature sensor port (±0.2°C accuracy, sensor sold separately) enables precise temperature control of the liquid or vessel surface rather than just the work plate for sensitive applications.

Key safety features include dual independent safety circuits that continuously monitor sensor status, temperature, and electrical conditions; user-adjustable maximum safety temperature to prevent overheating; and automatic shutdown with buzzer and error message if sensor failure, over-temperature, or electrical fault is detected. The corrosion-resistant all-metal housing provides good heat dissipation and fire protection, while the raised waterproof edge and drainage platform prevent liquid spills from entering internal electronics.

The Heating Plate (DHP4-550) is constructed with a glass ceramic work plate that withstands strong acids, strong alkalis, and temperatures up to 550°C without degradation. The all-metal chassis is also corrosion-resistant, and the non-slip rubber feet ensure stability during operation.

For the clinical laboratory scientist, clinical chemistry technologist, and microbiology specialist, the Heating Plate (DHP4-550) delivers the precise, safe, and reproducible heating required for clinical sample digestion, immunoassay incubation, microbiological media preparation, protein denaturation, and DNA denaturation workflows. For the patient, accurate and consistent sample preparation using precisely controlled heating ensures that downstream diagnostic test results are reliable and reproducible, directly supporting effective clinical decision-making and appropriate patient care.

Compare

Add to wishlist

Description

Heating Plate (DHP4-550)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Precision Heating for Clinical Sample Preparation
Primary Use: Provides a compact LCD digital hot plate with a 4-inch glass ceramic work plate (100×100 mm), used for the precise and controlled heating of liquid clinical samples, reagents, and biological specimens in research, analytical, and chemical laboratory settings, with a temperature range from room temperature up to 550°C in 1°C increments.

How it helps: For the clinical laboratory scientist and medical technologist, the Heating Plate (DHP4-550) ±1°C temperature control accuracy ensures consistent thermal conditions for sample digestion, protein denaturation, and reagent preparation. The integrated LCD display simultaneously shows set and real-time temperature values, allowing clear monitoring during critical procedures. The programmable timer from 1 minute to 99 hours 59 minutes automatically stops heating when countdown finishes, preventing accidental sample damage. For the patient, precise sample preparation ensures that downstream diagnostic test results are accurate and reproducible, directly supporting reliable clinical decision-making.

2. Controlled Digestion and Processing of Biological Fluids for Clinical Chemistry
Primary Use: Enables controlled heating of patient serum, plasma, urine, and whole blood specimens for digestion and pretreatment steps in clinical chemistry workflows, including sample clarification, protein precipitation, and acid digestion for trace element analysis.

How it helps: For the clinical chemistry technologist, the Heating Plate (DHP4-550) provides stable, uniform heating across the glass ceramic surface, which is resistant to strong acids, strong alkalis, and high temperatures, ensuring that aggressive digestion reagents do not damage the heating surface. The corrosion-resistant all-metal housing provides good heat dissipation and reliable fire protection, while the raised waterproof edge and drainage platform prevent liquids from entering internal electronics during sample handling. For the patient undergoing trace metal analysis, heavy metal screening, or therapeutic drug monitoring, accurate digestion of patient samples ensures that subsequent analytical measurements reflect true biological concentrations, supporting correct diagnosis and treatment.

3. Heating and Incubation for Immunoassay and ELISA Workflows
Primary Use: Used for the controlled heating of microplates and reaction tubes during various stages of immunoassay protocols, including antigen-antibody incubation, enzyme activation, and color development steps in ELISA and other immunodiagnostic procedures.

How it helps: For the immunology laboratory technologist, the Heating Plate (DHP4-550) can be used as a compact incubator for microplates placed directly on or above the heating surface. The PT1000 external temperature sensor (±0.2°C accuracy) enables precise temperature regulation for sensitive immunoassays when used with an appropriate vessel or heating block. The safety lock function prevents accidental changes to operating status during lengthy incubations. For the patient, consistent, controlled incubation conditions during immunoassay processing ensure reliable detection of infectious disease markers, autoimmune antibodies, or allergy indicators, reducing the risk of false results and repeat testing.

4. Melting and Preparation of Agar and Culture Media in Clinical Microbiology
Primary Use: Enables the safe and controlled melting of solid or solidified agar, nutrient broths, and microbiological culture media in glassware suitable for clinical microbiology workflows, including the preparation of culture plates, slants, and broth tubes for pathogen isolation.

How it helps: For the clinical microbiology technologist, the Heating Plate (DHP4-550) provides uniform heating up to 550°C, with the ability to set a maximum safety temperature to prevent overheating and degradation of heat-sensitive media components. The dual independent safety circuits monitor system status continuously; if sensor failure, overheating, or electrical faults occur, the device automatically stops heating and displays an error message with audible buzzer alert. For the patient, properly prepared and sterilized culture media support accurate identification of bacterial and fungal pathogens from clinical specimens, enabling appropriate antimicrobial therapy selection and improved treatment outcomes.

SECONDARY & SUPPORTIVE USES

1. General laboratory heating of liquids and solids: Heats liquids and solid materials in laboratory glassware to a defined temperature for dissolution, evaporation, concentration, or thermal reaction studies across chemistry, biology, and pharmaceutical research.

2. Sample drying and concentration: Evaporates solvents from liquid samples to concentrate analytes before further analysis, such as concentrating environmental water samples, urine specimens, or chemical extracts for improved detection sensitivity.

3. Protein denaturation and enzyme inactivation: Denatures proteins and inactivates enzymes in biological samples by heating to temperatures above 70°C, supporting sample preparation for protein electrophoresis, Western blotting, and other biochemical assays where enzyme activity must be stopped.

4. DNA denaturation for gel electrophoresis: Denatures double-stranded DNA samples by heating to 95-100°C for 5-10 minutes before loading onto agarose or polyacrylamide gels for molecular biology applications such as restriction fragment analysis and PCR product verification.

5. Buffer and reagent pre-warming: Pre-warms cell culture media, phosphate-buffered saline, wash buffers, and other laboratory reagents to physiological temperatures (37°C) or other desired temperatures before use in experiments, reducing thermal shock to cells and biological samples.

6. Chemical synthesis and refluxing: Provides a stable heating source for small-scale chemical synthesis, organic reactions, and basic reflux setups using round-bottom flasks and other compatible glassware in research and teaching laboratories.

7. Tissue and cell lysate preparation: Assists in the lysis of cells and tissues during nucleic acid or protein extraction workflows by heating samples in appropriate lysis buffers, improving extraction efficiency and yield from difficult samples.

8. Boiling point determination: Determines the boiling points of small-volume liquid samples using capillary tube methods, supporting analytical chemistry, quality control, and educational laboratory workflows.

9. Dissolution testing for pharmaceutical development: Heats dissolution media to specified temperatures (e.g., 37°C ± 0.5°C) for pharmaceutical dissolution testing of solid dosage forms when paired with appropriate vessels and sampling equipment, supporting drug development and quality control.

10. Viscosity testing of liquid samples: Maintains liquid samples at controlled temperatures for viscosity measurement using viscometers, supporting quality control in pharmaceutical, chemical, and food industries where temperature-dependent viscosity is critical.

11. Calibration of temperature-sensitive equipment: Serves as a stable, controlled heat source for calibrating and verifying the accuracy of thermometers, thermocouples, and other temperature measurement devices in laboratory quality assurance programs.

12. Solvent evaporation for sample concentration: Evaporates organic solvents from chemical or biological extracts under controlled temperature conditions, concentrating analytes for downstream analytical procedures such as HPLC, GC, or mass spectrometry.

13. Material testing and thermal stability assessment: Heats small material samples to assess thermal stability, melting points, or heat-induced property changes in quality control and research laboratories for polymers, pharmaceuticals, and other materials.

14. Crystallization and recrystallization studies: Controls the temperature of saturated solutions to induce or optimize crystal formation in chemical purification and pharmaceutical development workflows, improving product purity and yield.

15. Bathless incubation of small vessels: Incubates small reaction vessels, Eppendorf tubes, microcentrifuge tubes, and vials directly on the heating surface, eliminating the need for a separate water bath for certain applications and saving bench space.

KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: A compact, LCD digital controlled hot plate with a glass ceramic work surface, designed for precise laboratory heating applications.
Designation: Heating Plate (DHP4-550) LCD Digital 4-Inch Glass Ceramic Hot Plate, DLAB DHP4-550, Digital Heating Plate.
Key Components:
- 4-inch (100×100 mm) glass ceramic work plate with high corrosion resistance
- Corrosion-resistant all-metal housing with heat dissipation and fire protection
- Integrated LCD display for temperature and timer readout
- PT1000 external temperature sensor port (sensor sold separately or in kit)
- Digital temperature control system with safety temperature setting
- Programmable timer (1 minute to 99 hours 59 minutes)
- Dual independent safety circuits for continuous system monitoring
- Safety lock to prevent accidental changes to operating status
- Buzzer for fault and completion alerts

2. TECHNICAL & PERFORMANCE PROPERTIES

Work plate material: Glass ceramic (high temperature resistant, strong acid resistant, strong alkali resistant)
Work plate dimensions: 100 × 100 mm (4 inches)
Temperature range: Room temperature to 550°C
Temperature setting increment: 1°C
Temperature control accuracy: ±1°C
External sensor accuracy (PT1000): ±0.2°C
Timer range: 1 minute to 99 hours 59 minutes
Display: LCD with simultaneous set temperature and real-time temperature readout
Housing material: All-metal, corrosion-resistant with raised waterproof edge and drainage platform
Safety features: Dual independent safety circuits, safety lock, over-temperature protection, sensor failure detection
External sensor port: Standard PT1000 connector
Power requirements: AC 220V ±10%, 50/60 Hz (or 110V version available)
Power consumption: 250 W (typical, depends on heating rate and set temperature)
Dimensions (W × D × H): Approximately 150 × 200 × 80 mm (varies by model)
Weight: Approximately 1.5–2.0 kg
Quality compliance: CE marked, manufactured under ISO quality management systems

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: All-metal corrosion-resistant chassis with glass ceramic top plate; the metal housing provides good heat dissipation and reliable fire protection
Work plate: Glass ceramic surface that resists strong acids, strong alkalis, and high temperatures without degradation or chemical reaction
Water protection: Raised waterproof edge and drainage platform on the front panel collect and direct spilled liquids away from internal electronics, reducing electrical hazard risk
Display: Integrated LCD screen showing both set temperature and actual temperature simultaneously, plus timer readout
Operation: Digital controls with tactile buttons for temperature setting, timer setting, safety temperature setting, and power on/off
Temperature control: PID digital controller for stable, precise temperature maintenance
Safety lock: Prevents accidental changes to operating status once parameters are set, useful for unattended operation
External sensor compatibility: PT1000 temperature sensor (optional accessory) enables precise temperature control of the liquid or vessel surface rather than just the work plate
Timer function: Programmable from 1 minute to 99 hours 59 minutes; automatically stops heating when timer reaches zero and sounds buzzer
Safety monitoring: Dual independent safety circuits continuously monitor sensor status, temperature, and electrical conditions; automatically stops heating and displays error message if fault detected
Portability: Compact benchtop design, lightweight for easy relocation within laboratory
Maintenance: Glass ceramic surface is easy to clean; no routine lubrication required; periodic calibration check recommended

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; CE marked
Over-temperature protection: User can set a maximum safety temperature; instrument will not exceed this limit even if set temperature is higher
Dual safety circuits: Two independent monitoring circuits continuously check for sensor failure, over-temperature conditions, and electrical faults; heating stops automatically if anomaly detected
Buzzer alerts: Audible alarm for fault conditions (sensor failure, over-temperature) and timer completion
Water protection: Raised waterproof edge and drainage platform prevent liquid ingress to internal electronics; the front panel design collects and drains spilled liquids
Fire safety: All-metal housing provides fire protection and good heat dissipation; glass ceramic work plate is non-flammable
Heat hazard warning: External surfaces (especially the top plate and sides near the plate) become hot during operation; caution labels indicate hot surfaces
Electrical Safety: Compliant with IEC 61010-1 for laboratory electrical equipment; grounded power cord; overload protection
Chemical Safety: Glass ceramic work plate resists strong acids, strong alkalis, and organic solvents; housing resists common laboratory chemicals
Stability: Non-slip rubber feet prevent movement during operation

5. STORAGE & HANDLING ATTRIBUTES

Storage: Store in a clean, dry, dust-free environment at room temperature (15–30°C). Do not stack objects on top of the hot plate. Allow unit to cool completely 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. Do not use near water baths or sinks where splashing may occur.
Cleaning: Allow the work plate to cool completely before cleaning. Wipe the glass ceramic surface with a soft, damp cloth or sponge using mild detergent or 70% isopropyl alcohol. For stubborn residues, use a glass ceramic scraper. Wipe the metal housing with a soft, damp cloth. Do not immerse the unit in liquid. Do not use abrasive cleaners or metal scouring pads which may scratch the surface.
Pre-use inspection: Before each use, inspect the power cord 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.
Operation with external sensor: Insert the PT1000 external temperature sensor probe into the vessel or onto the surface to be controlled. Do not allow the sensor wire to contact the hot work plate. Ensure the sensor is compatible with the instrument (purchased separately or as a kit).
Setting safety temperature: Before first use, set an appropriate maximum safety temperature (e.g., 50°C above the highest planned operating temperature but not exceeding 550°C) to prevent accidental overheating.
Timer operation: Program the timer for the desired heating duration. The timer counts down while heating; when zero is reached, heating stops automatically and the buzzer sounds. The buzzer can be silenced by pressing any button.
Cooling down: After use, turn off the power and allow the work plate to cool completely (to below 50°C) before cleaning, moving, or storing. Cooling time may take 30–60 minutes depending on operating temperature.
Periodic verification: Verify temperature accuracy periodically using a calibrated external thermometer or thermocouple. If deviation exceeds specifications, consult manufacturer service guidelines.
Spill management: If a liquid spill occurs on the work plate or housing during operation, immediately turn off the power. Allow the spill to cool if on the hot plate, then clean thoroughly before reuse. Do not allow liquids to enter internal components through vents or seams.

6. LABORATORY & CLINICAL APPLICATIONS

Primary Application: Controlled heating of liquid and solid samples, reagents, and biological specimens for clinical chemistry sample preparation, immunoassay incubation, microbiology media preparation, molecular biology sample processing, and general laboratory heating tasks requiring precise temperature control up to 550°C.
Clinical Role: An essential instrument for clinical diagnostic laboratories, molecular diagnostics labs, clinical chemistry departments, immunology laboratories, microbiology laboratories, pharmaceutical quality control facilities, and research institutions. Critical for sample digestion, protein denaturation, media preparation, reagent pre-warming, and heat-based sample processing where precise, safe, and reproducible heating is required for accurate diagnostic results.

SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Burn Hazard: The work plate and metal housing become extremely hot during operation and remain hot for an extended period after power is turned off. Do not touch the work plate or nearby housing surfaces during or immediately after use. Use heat-resistant gloves or tools when handling vessels on the hot plate. Allow the unit to cool completely before moving or cleaning. The top plate can reach 550°C and can cause severe burns upon contact.
Fire Hazard: Do not operate the hot plate 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. Always set an appropriate safety temperature limit.
Electrical Safety: Do not operate with wet hands. Do not immerse the unit in liquid. Do not operate if the power cord is damaged or if the unit has been dropped or damaged. Keep the power cord away from the hot work plate during operation. Unplug the unit when not in use and before cleaning or maintenance.
Chemical Compatibility: The glass ceramic work plate is resistant to strong acids, strong alkalis, and organic solvents. However, some chemicals may produce toxic fumes when heated. Always use appropriate ventilation (fume hood) when heating hazardous or volatile chemicals. Refer to Safety Data Sheets for specific chemicals.
Spill Hazard: If a liquid spill occurs on the hot work plate, the liquid may evaporate rapidly and produce steam or hazardous vapors. Standing liquids may cause thermal shock to the glass ceramic plate, potentially causing cracking or breakage. Turn off power immediately and allow to cool before cleaning.
Vessel Selection: Use only heat-resistant glassware (borosilicate glass) or other laboratory vessels rated for the operating temperature. Do not use standard soda-lime glass or plastic vessels on the hot plate. Ensure vessels are stable and not likely to tip over.
External Sensor Safety: When using the PT1000 external temperature sensor, ensure the sensor probe is properly inserted into the vessel or securely attached to the surface being controlled. Do not allow the sensor wire to contact the hot work plate, as this may melt the wire insulation and cause sensor failure or electrical hazard.
Ventilation: Operate the hot plate in a well-ventilated area or under a fume hood when heating chemicals that may produce harmful vapors. Do not block ventilation around the unit.
Training Requirement: Only trained laboratory personnel should operate the DHP4-550 hot plate for clinical diagnostic or research applications. Users should read and understand the operator's manual before first use.

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. 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, deep burns (white or charred appearance), or burns causing blistering.
Fire: If a fire occurs on or near the hot plate, 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 area if the fire cannot be immediately controlled. Call emergency services.
Chemical Splash to Eyes: If a heated chemical splashes into the eyes, immediately flush eyes with copious amounts of cool water or sterile saline for at least 15 minutes. Hold eyelids open to ensure thorough rinsing. Remove contact lenses if present and easily removable. 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. Do not rub or scrub. Seek medical evaluation for chemical burns or if irritation persists. Refer to the Safety Data Sheet 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 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 all-metal housing is non-flammable, but the power cord, internal wiring, and electronic components 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 plate.
Extinguishing Media: Use carbon dioxide (CO₂), dry chemical (ABC class), or 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 hot plate 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 you are 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 electronic components.

Heating Plate (DHP4-550)

The Heating Plate (DHP4-550) is constructed with a glass ceramic work plate that withstands strong acids, strong alkalis, and temperatures up to 550°C without degradation. The all-metal chassis is also corrosion-resistant, and the non-slip rubber feet ensure stability during operation.

Heating Plate (DHP4-550)

PRIMARY CLINICAL & DIAGNOSTIC USES

SECONDARY & SUPPORTIVE USES

1. General laboratory heating of liquids and solids: Heats liquids and solid materials in laboratory glassware to a defined temperature for dissolution, evaporation, concentration, or thermal reaction studies across chemistry, biology, and pharmaceutical research.

2. Sample drying and concentration: Evaporates solvents from liquid samples to concentrate analytes before further analysis, such as concentrating environmental water samples, urine specimens, or chemical extracts for improved detection sensitivity.

3. Protein denaturation and enzyme inactivation: Denatures proteins and inactivates enzymes in biological samples by heating to temperatures above 70°C, supporting sample preparation for protein electrophoresis, Western blotting, and other biochemical assays where enzyme activity must be stopped.

4. DNA denaturation for gel electrophoresis: Denatures double-stranded DNA samples by heating to 95-100°C for 5-10 minutes before loading onto agarose or polyacrylamide gels for molecular biology applications such as restriction fragment analysis and PCR product verification.

5. Buffer and reagent pre-warming: Pre-warms cell culture media, phosphate-buffered saline, wash buffers, and other laboratory reagents to physiological temperatures (37°C) or other desired temperatures before use in experiments, reducing thermal shock to cells and biological samples.

6. Chemical synthesis and refluxing: Provides a stable heating source for small-scale chemical synthesis, organic reactions, and basic reflux setups using round-bottom flasks and other compatible glassware in research and teaching laboratories.

7. Tissue and cell lysate preparation: Assists in the lysis of cells and tissues during nucleic acid or protein extraction workflows by heating samples in appropriate lysis buffers, improving extraction efficiency and yield from difficult samples.

8. Boiling point determination: Determines the boiling points of small-volume liquid samples using capillary tube methods, supporting analytical chemistry, quality control, and educational laboratory workflows.

9. Dissolution testing for pharmaceutical development: Heats dissolution media to specified temperatures (e.g., 37°C ± 0.5°C) for pharmaceutical dissolution testing of solid dosage forms when paired with appropriate vessels and sampling equipment, supporting drug development and quality control.

10. Viscosity testing of liquid samples: Maintains liquid samples at controlled temperatures for viscosity measurement using viscometers, supporting quality control in pharmaceutical, chemical, and food industries where temperature-dependent viscosity is critical.

11. Calibration of temperature-sensitive equipment: Serves as a stable, controlled heat source for calibrating and verifying the accuracy of thermometers, thermocouples, and other temperature measurement devices in laboratory quality assurance programs.

12. Solvent evaporation for sample concentration: Evaporates organic solvents from chemical or biological extracts under controlled temperature conditions, concentrating analytes for downstream analytical procedures such as HPLC, GC, or mass spectrometry.

13. Material testing and thermal stability assessment: Heats small material samples to assess thermal stability, melting points, or heat-induced property changes in quality control and research laboratories for polymers, pharmaceuticals, and other materials.

14. Crystallization and recrystallization studies: Controls the temperature of saturated solutions to induce or optimize crystal formation in chemical purification and pharmaceutical development workflows, improving product purity and yield.

15. Bathless incubation of small vessels: Incubates small reaction vessels, Eppendorf tubes, microcentrifuge tubes, and vials directly on the heating surface, eliminating the need for a separate water bath for certain applications and saving bench space.

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: A compact, LCD digital controlled hot plate with a glass ceramic work surface, designed for precise laboratory heating applications.

Designation: Heating Plate (DHP4-550) LCD Digital 4-Inch Glass Ceramic Hot Plate, DLAB DHP4-550, Digital Heating Plate.

Key Components:

4-inch (100×100 mm) glass ceramic work plate with high corrosion resistance

Corrosion-resistant all-metal housing with heat dissipation and fire protection

Integrated LCD display for temperature and timer readout

PT1000 external temperature sensor port (sensor sold separately or in kit)

Digital temperature control system with safety temperature setting

Programmable timer (1 minute to 99 hours 59 minutes)

Dual independent safety circuits for continuous system monitoring

Safety lock to prevent accidental changes to operating status

Buzzer for fault and completion alerts

2. TECHNICAL & PERFORMANCE PROPERTIES

Work plate material: Glass ceramic (high temperature resistant, strong acid resistant, strong alkali resistant)

Work plate dimensions: 100 × 100 mm (4 inches)

Temperature range: Room temperature to 550°C

Temperature setting increment: 1°C

Temperature control accuracy: ±1°C

External sensor accuracy (PT1000): ±0.2°C

Timer range: 1 minute to 99 hours 59 minutes

Display: LCD with simultaneous set temperature and real-time temperature readout

Housing material: All-metal, corrosion-resistant with raised waterproof edge and drainage platform

Safety features: Dual independent safety circuits, safety lock, over-temperature protection, sensor failure detection

External sensor port: Standard PT1000 connector

Power requirements: AC 220V ±10%, 50/60 Hz (or 110V version available)

Power consumption: 250 W (typical, depends on heating rate and set temperature)

Dimensions (W × D × H): Approximately 150 × 200 × 80 mm (varies by model)

Weight: Approximately 1.5–2.0 kg

Quality compliance: CE marked, manufactured under ISO quality management systems

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: All-metal corrosion-resistant chassis with glass ceramic top plate; the metal housing provides good heat dissipation and reliable fire protection

Work plate: Glass ceramic surface that resists strong acids, strong alkalis, and high temperatures without degradation or chemical reaction

Water protection: Raised waterproof edge and drainage platform on the front panel collect and direct spilled liquids away from internal electronics, reducing electrical hazard risk

Display: Integrated LCD screen showing both set temperature and actual temperature simultaneously, plus timer readout

Operation: Digital controls with tactile buttons for temperature setting, timer setting, safety temperature setting, and power on/off

Temperature control: PID digital controller for stable, precise temperature maintenance

Safety lock: Prevents accidental changes to operating status once parameters are set, useful for unattended operation

External sensor compatibility: PT1000 temperature sensor (optional accessory) enables precise temperature control of the liquid or vessel surface rather than just the work plate

Timer function: Programmable from 1 minute to 99 hours 59 minutes; automatically stops heating when timer reaches zero and sounds buzzer

Safety monitoring: Dual independent safety circuits continuously monitor sensor status, temperature, and electrical conditions; automatically stops heating and displays error message if fault detected

Portability: Compact benchtop design, lightweight for easy relocation within laboratory

Maintenance: Glass ceramic surface is easy to clean; no routine lubrication required; periodic calibration check recommended

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; CE marked

Over-temperature protection: User can set a maximum safety temperature; instrument will not exceed this limit even if set temperature is higher

Dual safety circuits: Two independent monitoring circuits continuously check for sensor failure, over-temperature conditions, and electrical faults; heating stops automatically if anomaly detected

Buzzer alerts: Audible alarm for fault conditions (sensor failure, over-temperature) and timer completion

Water protection: Raised waterproof edge and drainage platform prevent liquid ingress to internal electronics; the front panel design collects and drains spilled liquids

Fire safety: All-metal housing provides fire protection and good heat dissipation; glass ceramic work plate is non-flammable

Heat hazard warning: External surfaces (especially the top plate and sides near the plate) become hot during operation; caution labels indicate hot surfaces

Electrical Safety: Compliant with IEC 61010-1 for laboratory electrical equipment; grounded power cord; overload protection

Chemical Safety: Glass ceramic work plate resists strong acids, strong alkalis, and organic solvents; housing resists common laboratory chemicals

Stability: Non-slip rubber feet prevent movement during operation

5. STORAGE & HANDLING ATTRIBUTES

Storage: Store in a clean, dry, dust-free environment at room temperature (15–30°C). Do not stack objects on top of the hot plate. Allow unit to cool completely 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. Do not use near water baths or sinks where splashing may occur.

Pre-use inspection: Before each use, inspect the power cord 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.

Operation with external sensor: Insert the PT1000 external temperature sensor probe into the vessel or onto the surface to be controlled. Do not allow the sensor wire to contact the hot work plate. Ensure the sensor is compatible with the instrument (purchased separately or as a kit).

Setting safety temperature: Before first use, set an appropriate maximum safety temperature (e.g., 50°C above the highest planned operating temperature but not exceeding 550°C) to prevent accidental overheating.