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Yamato DNF-411 90L Forced Convection Oven with Programmable Temperature Control (220V)
Product Description
Yamato DNF-411 Forced Air Convection Oven (220V)
- Circulation Methods: Forced and natural convection in one unit
- Capacity: 90 liters
- Voltage: 220 V
- Temperature Range:
- 0–130°C with no airflow (wind velocity 0)
- 0–270°C with airflow (wind velocity 1–10)
- Temperature Control: PID Z control with digital setting; accuracy ±0.3°C at 260°C; fluctuation ±0.5°C
- Air Velocity Control: 10 adjustable steps (600–1500 rpm) plus no airflow setting
- Heating Elements: Two 0.6 kW heaters
- Chamber Construction: Stainless steel interior; exterior with cold-rolled steel and chemical-proof baked-on finish; glass wool insulation
- Dimensions:
- Internal (W×D×H): 450×450×450 mm
- External (W×D×H): 580×645×890 mm
- Weight: Approx. 75 kg
- Door: Single swing, left side
- Program Features: Up to 99 programmable steps with repeat, auto start, auto stop, and quick auto stop
- Display: Green 4-digit LED for temperature reading; orange 5-digit LED for setting display
- Additional Functions:
- Variable air flow and adjustable damper for optimized operation
- Power consumption reduction program
- Power-on and operation time monitoring up to 65,535 hours
- Calibration offset and data backup/recovery
- Monitoring of power consumption, CO2 emissions, and heater output
- Power recovery mode after outage
- Safety and Control:
- K-type thermocouple double sensor for temperature control and overheat prevention
- Self-diagnostic control board with detection for sensor failure, TRIAC short circuit, overheating prevention, heater line disconnect, and relay damage
- Earth leakage breaker with 30mA sensitivity
- Door switch disables heater and fan when door is open
- Ports: One cable port (33mm diameter, right side), one exhaust port (50mm diameter, rear), and one inlet port (33mm diameter, right side)
- Shelving:
- 2 shelf plates included; 4 shelf brackets
- 11 adjustable shelf positions with 30 mm pitch
- Shelf load capacity 15 kg/shelf
- Heater Control: Triac with zero-cross control for stable power delivery
- Performance Metrics:
- Temperature distribution precision ±2.5°C at 260°C
- Temperature gradient 7°C at 260°C
- Temperature rise time approximately 105 minutes
- Exhaust Damper: Manual damper with interlocked intake and exhaust; full exhaust reduces max achievable temperature to below 260°C
This unit is designed for precise temperature control with energy-saving features and flexible air circulation, suitable for laboratory drying, sterilizing, and other heating applications.
Item Stats
Product details
| Model | DNF-411 |
| Circulation Method | Forced convection + Natural convection |
| External Temp. Range | 5-35°C |
| Temperature Set Range | 0~130°C (Wind velocity: 0), 0~270°C (Wind velocity: 1~10) |
| Temperature Control Range | RT +25~120°C (Wind velocity: 0), RT +15~260°C (Wind velocity: 1~10) |
| Temp. Control Accuracy *¹ | ±0.3°C (at 260°C) |
| Temp. Fluctuation *¹ | ±0.5°C (at 260°C) |
| Temp. Distribution Precision *¹ | ±2.5°C (at 260°C) |
| Temp. Gradient *¹ | 7°C (at 260°C) |
| Temp. Rise Time *¹ | ~105min. |
| Chamber / Exterior / Insulation | Stainless steel / Cold rolled steel paneling, chemical-proof baked-on finish / Glass wool |
| Door | Single swing (left side) |
| Heater | 0.6kWx2 |
| Wind Velocity Adjusting System | 10 steps (600~1500rpm) + Wind velocity (0) |
| Damper | Circulation-Ventilation Manual switching: Interlocked intake and exhaust system (Complete exhaust applicable / Unable to reach 260°C with damper fully open) |
| Cable Port | Inner diameter: 33mm×1 (right side) |
| Exhaust Port | Outer diameter: 50mm×1 (back side) |
| Inlet Port | Inner diameter: 33mm×1 (right side) |
| Controller | Model V type |
| Temperature Control / Setting System | PID Z control / Digital setting with ▲/▼ keys |
| Temperature Display System | Temperature reading display: green 4-digit digital LED/Temperature setting display: orange 5-digit digital LED |
| Other Indications | LED indicates temperature patterns for heating/stabilizing/cooling |
| Timer | Fixed temperature operation, Program operation (maximum 99 steps or 99 patterns, with repeat operation function), Timer or clock operation function (Fixed temperature operation w/ auto start/auto stop/quick auto stop, program operation auto start) |
| Additional Functions | Variable Air Flow Function, Power-on Time and Operation Time Accumulation Monitor (up to 65,535 hours); Calibration Offset; Monitoring Display for Accumulated Power Consumption, Total CO 2 Emissions, and Heater Operation Output; Power Recovery Mode; Setting Data Backup and Recovery |
| Temperature Sensor | K type Thermocouple double sensor (for temperature control and independent overheat prevention device) |
| Heater Control | Triac with Zero-cross Control |
| Control Board | Self-diagnostic Functions (Detection for Temp. Sensor Failure, TRIAC Short Circuit, Automatic overheating prevention, Heater Line Disconnect, Main Relay Contact Damage ), Earth leakage breaker, Fan Motor Failure, Key Lock Function, Independent overheating prevention device |
| Earth Leakage Breaker | Leak Current/Short Circuit/Over-current Protection, Rated Current Sensitivity 30mA |
| Door Switch | Door open: fan motor and heater circuit OFF, Door close: fan motor and heater circuit ON |
| Internal Dimensions (W×D×H Mm) | 450×450×450 |
| External Dimensions (W×D×H Mm) | 580×645×890 |
| Capacity | 90L |
| Weight | ~75kg |
| Number Of Shelf Bracket Step / Pitch | 11 steps/30mm |
| Withstand Load Of Shelf | 15kg/shelf |
| Power Supply | AC115V, 7.5A (with plug) |
| Shelf Plate / Bracket | 2 pcs. / 4 pcs. |
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