DLAB HP380-Pro LCD Digital Programmable Hotplate
| Brand | DLAB |
|---|---|
| Origin | Beijing, China |
| Model | HP380-Pro LCD |
| Heating Plate Size | 140 × 140 mm |
| Max. Heating Temperature | 380 °C |
| Temp. Range | Ambient to 380 °C (1 °C increments) |
| Display | Dual LCD (temperature & timer) |
| Temp. Accuracy | ±1 °C (internal), ±0.2 °C (external PT1000 probe) |
| Overheat Protection | 420 °C |
| Residual Heat Warning | Yes |
| Power Input | 100–120 V / 200–240 V, 50/60 Hz |
| Rated Power | 510 W |
| Thermal Output | 500 W |
| Housing IP Rating | IP21 |
| Dimensions (L×W×H) | 180 × 320 × 108 mm |
| Weight | 2.2 kg |
| Operating Ambient | 5–40 °C, ≤80% RH |
Overview
The DLAB HP380-Pro LCD Digital Programmable Hotplate is a precision-engineered laboratory heating platform designed for consistent, controllable thermal treatment of samples in analytical, synthetic, and quality control workflows. Utilizing resistive heating elements embedded beneath a robust aluminum plate with ceramic coating, the unit delivers uniform heat distribution across its 140 × 140 mm active surface. Its core operational principle relies on closed-loop temperature regulation—where either the built-in sensor or an external PT1000 probe continuously feeds real-time feedback to the microprocessor-controlled PID algorithm, enabling stable setpoint maintenance within ±1 °C (±0.2 °C when using the calibrated external probe). With a maximum operating temperature of 380 °C and fine 1 °C resolution, the HP380-Pro supports applications ranging from solvent evaporation and sample digestion to catalyst activation and polymer annealing—without requiring oil baths or open flames. Its dual-line LCD interface provides simultaneous readout of current temperature and elapsed time, supporting both continuous operation and timed protocols.
Key Features
- High-precision digital temperature control with PID algorithm and dual-sensor input (internal thermistor + optional external PT1000)
- Ceramic-coated aluminum heating plate (140 × 140 mm) offering rapid thermal response, corrosion resistance, and mechanical durability
- Two-point safety architecture: electronic overtemperature cutoff at 420 °C plus visual residual heat warning indicator
- Universal power compatibility (100–120 V / 200–240 V, 50/60 Hz) with 500 W effective thermal output and low standby power consumption
- IP21-rated enclosure ensuring protection against vertically falling solids and limited ingress of moisture during standard lab use
- Ergonomic design with compact footprint (180 × 320 × 108 mm) and lightweight construction (2.2 kg) for benchtop flexibility and mobility
Sample Compatibility & Compliance
The HP380-Pro accommodates standard laboratory glassware—including beakers (up to 1 L), Erlenmeyer flasks, round-bottom flasks, and crystallization dishes—on its flat, chemically inert ceramic-coated surface. It is compatible with magnetic stirrers (when used in conjunction with compatible stirrer bases) and supports both open-vessel and capped-vessel heating protocols. The device complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and meets EMC requirements per IEC 61326-1:2020. While not intrinsically rated for hazardous environments, its IP21 rating aligns with general-purpose laboratory conditions under ISO/IEC 17025-accredited facilities. Temperature validation procedures may be performed using NIST-traceable reference probes to support GLP/GMP documentation requirements.
Software & Data Management
The HP380-Pro operates as a standalone analog-digital hybrid instrument with no embedded firmware-based data logging or USB/Bluetooth connectivity. All operational parameters—including setpoint, real-time temperature, and elapsed time—are displayed locally via the integrated LCD. For laboratories requiring audit trails or electronic records, external data acquisition systems (e.g., DAQ modules with thermocouple/RTD inputs) may be interfaced via the PT1000 sensor port. The unit supports manual calibration verification per ASTM E220 or ISO 17025 Annex A.3 guidelines, and its thermal stability profile enables reproducible method transfer across instruments within the same model series.
Applications
- Controlled evaporation of solvents in preparative chemistry and sample concentration prior to HPLC or GC analysis
- Pre-heating reagents and reaction mixtures in organic synthesis and catalysis studies
- Thermal conditioning of polymers, resins, and adhesives during material testing
- Drying and conditioning of filter papers, crucibles, and weighing vessels in gravimetric analysis
- Supporting standardized test methods such as ASTM D92 (flash point by Cleveland Open Cup) and ISO 3675 (crude petroleum density determination)
- Calibration warm-up stage for viscometers, densitometers, and refractometers requiring thermal equilibration
FAQ
Does the HP380-Pro support external temperature probe input?
Yes—it features a dedicated PT1000 input port enabling direct connection of a calibrated external probe for improved accuracy and spatial temperature monitoring.
Is the heating surface resistant to acids and alkalis?
The ceramic coating provides broad chemical resistance to common laboratory reagents, including diluted HCl, NaOH, and acetone; however, prolonged exposure to hydrofluoric acid or molten alkali metals is not recommended.
Can the unit maintain temperature stability during extended operation (>8 hours)?
Under typical ambient conditions (23 ± 2 °C), the HP380-Pro demonstrates long-term thermal drift of <±0.5 °C over 12-hour cycles when operated at 250 °C, verified per internal performance qualification protocols.
What safety certifications does this model carry?
It conforms to IEC 61010-1:2010 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and bears CE marking for the European Economic Area.
Is firmware upgrade capability available?
No—the HP380-Pro uses fixed-function microcontroller logic without field-upgradable firmware; all operational parameters are hardware-defined and factory-calibrated.
