LabCompanion DHG-9005D 30L Forced-Air Constant-Temperature Drying Oven
| Key | Brand: LabCompanion |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | DHG-9005D |
| Temperature Range | RT+10°C to 300°C |
| Temperature Uniformity | ±0.5°C |
| Internal Dimensions (W×D×H) | 300×280×350 mm |
| External Dimensions (W×D×H) | 445×490×700 mm |
| Chamber Material | Stainless Steel (1Cr18Ni9Ti) |
| Heating Method | Forced-Air Circulation |
| Power Supply | AC 220 V, 50 Hz |
| Temperature Resolution | 0.1°C |
| Timer Range | 1–9999 min/h |
| Controller Type | Intelligent Programmable LCD Controller |
Overview
The LabCompanion DHG-9005D is a precision-engineered 30L forced-air drying oven designed for routine and regulated laboratory applications requiring stable thermal environments up to 300°C. Utilizing a robust hot-air circulation system with axial fan-driven airflow and optimized baffle design, the oven ensures uniform temperature distribution across the entire chamber—critical for consistent sample drying, curing, sterilization, and moisture content analysis. Its stainless steel (1Cr18Ni9Ti) interior resists corrosion from acidic vapors, solvents, and repeated thermal cycling, supporting long-term reliability in QC labs, materials testing facilities, and academic research settings. The unit complies with fundamental safety and performance expectations aligned with IEC 61010-1 (Electrical Safety for Laboratory Equipment) and supports operational traceability when integrated into GLP or ISO/IEC 17025-compliant workflows.
Key Features
- Intelligent programmable LCD controller with multi-segment ramp-soak capability, enabling precise thermal profiling for complex protocols (e.g., stepwise dehydration or polymer post-curing).
- High-reproducibility temperature control with ±0.5°C uniformity across the working chamber at setpoints between RT+10°C and 300°C.
- Stainless steel (1Cr18Ni9Ti) inner chamber—welded seams, rounded corners, and smooth finish facilitate cleaning and minimize residue accumulation.
- Double-layer insulated door with heat-resistant glass viewport and magnetic seal ensures thermal integrity and real-time visual monitoring without opening.
- Over-temperature protection circuit and independent mechanical thermostat provide redundant safety layers compliant with Class II equipment requirements.
- Adjustable stainless steel shelving (standard: 2 shelves; optional: up to 4) allows flexible load configuration for Petri dishes, crucibles, glassware, or bulk samples.
Sample Compatibility & Compliance
The DHG-9005D accommodates standard laboratory containers including aluminum weighing dishes, porcelain crucibles, borosilicate glass beakers, and polymer trays. Its 300 × 280 × 350 mm internal volume supports ASTM D2240 (Shore hardness conditioning), ISO 293 (thermoplastic compression molding), and USP (sterile product depyrogenation validation support). While not certified for Class A dry-heat sterilization per EN 285, the oven meets the thermal stability prerequisites for pre-sterilization drying of instruments and packaging components. All electrical components conform to RoHS directives, and CE marking is applied where applicable under manufacturer-declared conformity.
Software & Data Management
The embedded intelligent controller logs setpoint history and real-time chamber temperature at user-defined intervals (1–60 sec). Data export via USB port enables CSV-formatted records compatible with LIMS integration or Excel-based trending analysis. Optional RS485 interface supports Modbus RTU communication for centralized lab monitoring systems. Audit trail functionality—including operator ID input, parameter change timestamps, and alarm event logging—is available in firmware version 2.3+, satisfying basic FDA 21 CFR Part 11 requirements for electronic records when paired with validated user access controls.
Applications
- Moisture loss-on-drying (LOD) assays per USP , EP 2.2.32, and AOAC 950.46 for pharmaceutical excipients and food ingredients.
- Thermal conditioning of elastomers and composites prior to tensile or hardness testing (ASTM D412, ISO 37).
- Drying of filter papers, soil samples, and biological tissues for gravimetric analysis.
- Preheating and post-baking of coated substrates in thin-film R&D and semiconductor packaging labs.
- Residual solvent removal from synthesized organic compounds under inert atmosphere (when used with optional N₂ purge kit).
FAQ
What is the maximum operating temperature of the DHG-9005D?
The unit is rated for continuous operation up to 300°C, with full thermal stability and uniformity maintained across the specified range (RT+10°C to 300°C).
Does the oven support programmable temperature ramps?
Yes—the intelligent LCD controller supports up to 8 programmable segments with independent ramp rates and soak times, configurable via intuitive menu navigation.
Is the chamber material suitable for acidic sample residues?
The 1Cr18Ni9Ti stainless steel construction provides excellent resistance to mild organic acids and chlorides; however, prolonged exposure to concentrated HCl or HF is not recommended.
Can this model be integrated into a networked lab environment?
Via optional RS485/Modbus RTU interface, the oven can transmit temperature data and status flags to SCADA or building management systems for remote supervision.
What calibration documentation is provided?
Each unit ships with a factory temperature uniformity verification report (at 100°C and 250°C), traceable to national standards. NIST-traceable calibration certificates are available upon request.
