Yamato DP300 Vacuum Drying Oven and Dry Heat Sterilizer

The Yamato DP300 vacuum drying oven and dry heat sterilizer is a 27 L laboratory oven designed for controlled heating under reduced-pressure conditions. It provides a temperature range of 40–240 °C and an operating vacuum range of 101–0.1 kPa (760–1 Torr), supporting drying, solvent removal, heat treatment, and selected laboratory sterilization workflows.

• Operating method: Vacuum reduction with chamber-heating radiation
• Temperature range: 40–240 °C
• Temperature control accuracy: ±1 °C at 240 °C
• Temperature variation: 2.0 °C at 240 °C
• Maximum-temperature attainment time: Approximately 120 minutes
• Vacuum gauge: Bourdon-tube type, 0–0.1 MPa
• Chamber volume: 27 L
• Internal dimensions: 300 × 300 × 300 mm
• External dimensions: 510 × 460 × 782 mm
• Shelf system: 4 fixed support levels with 71 mm pitch
• Shelf load capacity: 15 kg per shelf
• Included accessory: 1 shelf plate

The DP300 uses a SUS304 stainless steel chamber, cold-rolled steel exterior with baked coating, rock-wool insulation, and a single hinged door. Heating is provided by a 1,050 W mica heater, with a tempered-glass and polycarbonate viewing window.

• Temperature control: P.I.D. control
• Temperature sensor: K-type thermocouple for control and overtemperature protection
• Display: Green LED chamber-temperature display and orange LED set-temperature display
• Display resolution: 1 °C
• Timer range: 0 minutes–99 hours 59 minutes
• Timer resolution: 1 minute or 1 hour
• Program operation: Up to 99 steps and 99 patterns with repeat operation
• Operating modes: Constant-value, quick auto-stop, auto-start, auto-stop, and program operation
• Heater control: Triac zero-cross switching

Additional controller functions include cumulative operating-time tracking up to 65,535 hours, 24-hour time display, calibration offset, monitoring of power consumption, CO2 emissions, and heater output, power-failure compensation mode, and user-setting storage and recall.

Safety features include a 15 A leakage breaker, 30 mA rated sensitivity current, controller self-diagnostics, sensor-fault detection, heater-disconnection detection, triac short-circuit detection, main-relay fault detection, automatic overtemperature protection, key locking, and an independent overtemperature protection circuit adjustable from 0–270 °C. The unit operates from AC 100 V at 10.7 A with a 15 A breaker capacity.

This used Yamato DP300 is suitable for laboratory sample drying, vacuum drying of heat-sensitive materials, solvent evaporation, materials research, biotechnology workflows, molecular biology preparation, and controlled thermal processing in research and industrial laboratories.