The DHG-9425 Large-Capacity Mechanical Convection Oven is designed for laboratory drying, material storage, wax melting, and heat-based sterilization applications. Featuring a 420 L stainless steel chamber and forced-air convection, the oven distributes heated air throughout the chamber to provide consistent heating conditions for a wide range of laboratory materials and samples.

The DHG-9425 features a digital temperature controller with ±1°C accuracy, a maximum continuous operating temperature of 250°C, and temperature uniformity of ±2°C at 100°C. The spacious chamber includes three stainless steel shelves, each supporting approximately 10 kg, while an independent over-temperature protection sensor automatically cuts power in the event of overheating.

SPECIFICATIONS

Model	DHG-9425
Product Type	Large-Capacity Mechanical Convection Laboratory Oven
Working Voltage	208–240 VAC, 50/60 Hz, single-phase 30 A circuit breaker required, as specified by the manufacturer.
Maximum Power Consumption	3,500 W (3.5 kW)
Maximum Continuous Operating Temperature	250°C
Maximum Heating Rate	10°C/min
Temperature Stability	±1.0°C
Temperature Uniformity	±2°C at 100°C
Heating Chamber	Interior material: stainless steel Chamber dimensions (L × W × H): 640 × 585 × 1355 mm Approximate chamber dimensions: 25.2″ × 23.0″ × 53.3″ Nominal chamber volume: 420 L Includes three stainless steel shelves Maximum load capacity: approximately 10 kg per shelf
Temperature Controller	Digital temperature controller Temperature control accuracy: ±1°C
Heating Method	Mechanical convection for even distribution of heated air throughout the chamber
Over-Temperature Protection	Built-in over-temperature protection sensor automatically cuts off power if an overheating condition is detected
Compliance	CE certified NRTL or CSA certification available upon request at additional cost
Features & Applications	Large-capacity 420 L laboratory convection oven Mechanical convection for consistent heat distribution Maximum continuous operating temperature of 250 °C Digital temperature controller with ±1°C accuracy Temperature stability of ±1.0°C Temperature uniformity of ±2°C at 100°C Stainless steel interior for laboratory applications Three included stainless steel shelves with approximately 10 kg load capacity each Automatic over-temperature power cutoff Suitable for laboratory drying, storage, wax melting, and appropriate heat-treatment or sterilization processes

TEMPERATURE CALIBRATION & APPLICATION NOTES

For applications requiring accurate temperature measurement and documentation, the oven temperature should be checked using a suitable temperature calibration kit. The measured temperature difference can be compensated for by adjusting the temperature offset in the digital controller according to the manufacturer's instructions.

OPERATING NOTES

• Temperature limit: Do not exceed the maximum continuous operating temperature of 250°C.
• Electrical requirements: Operate the oven using a compatible 208–240 VAC, single-phase electrical supply with the manufacturer's specified 30 A circuit breaker.
• Shelf loading: Do not exceed approximately 10 kg per shelf. Distribute sample loads appropriately to maintain airflow.
• Temperature calibration: Verify the chamber temperature and adjust the controller offset when accurate temperature records are required.
• Sterilization applications: Suitability depends on the material, temperature, exposure duration, and applicable sterilization protocol. Validate the process before using the oven for sterilization.
• Material compatibility: Confirm that all samples and containers are suitable for mechanical convection heating at the selected operating temperature.