Description

The DHP4-550 DLAB LCD Digital Heating Plate is a compact laboratory heating device designed for precise and controlled heating of liquid samples in research, analytical, and chemical laboratories. Featuring a durable 4-inch glass ceramic work plate (100 × 100 mm), the unit offers excellent resistance to strong acids, strong alkalis, and high temperatures while maintaining easy surface cleaning after solvent or reagent spills.

The heating plate provides a temperature range from room temperature up to 550 °C with 1 °C increments, ensuring accurate thermal control for various laboratory procedures. The integrated LCD display simultaneously shows both the set temperature and real-time temperature values, as well as timer settings, allowing clear and intuitive monitoring during operation.

Equipped with a high-precision PT1000 external temperature sensor (±0.2 °C accuracy), the system enables precise temperature regulation for sensitive experiments. The timer function supports programmable heating from 1 minute to 99 hours 59 minutes, automatically stopping heating when the countdown finishes to protect samples from overheating.

Safety is enhanced through multiple protective features including residual heat warning above 50 °C, overheating protection at 580 °C, and dual independent safety circuits that continuously monitor system status. If abnormal conditions such as sensor failure, overheating, or electrical faults occur, the device automatically stops heating and displays an error message.

The corrosion-resistant metal housing improves heat dissipation and durability, while the raised waterproof edge and drainage platform help prevent liquids from entering the internal electronics. With remote control capability for computer connection and preset safety temperature settings, the DHP4-550 digital heating plate provides a reliable and efficient heating solution for modern laboratory environments.

Specifications

Parameter	Specification
Cat.No.	8021502211 (Main Unit) / 8121502211 (Set)
Work Plate Dimension	100 × 100 mm (4 inch)
Work Plate Material	Glass ceramic
Heating Temperature Range	Room Temp. – 550 ℃, increment 1 ℃
Temperature Display	LCD
Time Display	LCD
Temperature Control Accuracy	±1 ℃ (<100 ℃) \| ±1% (>100 ℃)
Temperature Display Accuracy	0.1 ℃
External Temperature Sensor	PT1000 (accuracy ±0.2 ℃)
"Hot" Warning	50 ℃
Overheating Temperature Protection	580 ℃
Heating Position	1
Timer Function	1 min – 99 h 59 min
Protection Class	IP21
Power	430 W
Heating Output	410 W
Voltage / Frequency	100–120 / 200–240 V, 50 / 60 Hz
Dimension [W × D × H]	270 × 175 × 108 mm
Weight	1.8 kg
Permissible Ambient Temperature	5 – 40 ℃
Permissible Ambient Humidity	80% RH

Features

The ceramic plate offers excellent corrosion resistance, capable of withstanding strong acids, strong alkalis, and high temperatures. It is easy to clean spilled solvents, oils, or other contaminants.
The corrosion-resistant full metal housing provides good heat dissipation and reliable fire protection.
The efficient drainage platform and raised waterproof edge prevent liquids from entering the machine and corroding internal electronic components.
The safety lock prevents accidental changes to the operating status.
Buzzer: When a fault occurs or the timer countdown ends, the buzzer emits a “beep-beep-beep” alert sound.
Residual heat warning function: When the plate temperature exceeds 50°C, heating is turned off, and the screen displays a flashing “HOT” warning. Even after the power is turned off, the display continues to flash “HOT” to indicate high temperature.
Dual independent safety circuits continuously monitor the device. In the event of overheating, sensor failure, or system error, the machine shows an error and stops heating. If a short circuit occurs, the power is automatically cut off to ensure operator safety.
The LCD display shows both set and real-time values for time and temperature, providing clear and intuitive readouts.
Timer function: Settable from 1 minute to 99 hours 59 minutes. Once the countdown ends, heating stops to prevent thermal damage to the sample.
Remote control function is available, allowing connection to a computer.
Safety temperature can be preset.

Applications

Chemical Sample Heating: Suitable for heating reagents, solutions, and reaction mixtures in chemical laboratories.
Sample Preparation: Used for evaporation, digestion, and heating steps during analytical sample preparation workflows.
Biological and Biochemical Experiments: Supports controlled heating of buffers, culture media, and biochemical reagents.
Laboratory Reaction Heating: Provides stable heating for small-scale chemical reactions and synthesis experiments.
Quality Control and Analytical Testing: Suitable for heating samples during laboratory quality testing and material analysis.
General Laboratory Heating Tasks: Ideal for routine heating applications in research institutes, universities, and industrial laboratories.

DHP4-550 DLAB LCD Digital 4-Inch Timed Heating Plate(2024 Model) - Set 110V 50-60Hz US Plug