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Yamato DNF-401 Forced Air Convection Oven 90L (115V)
Product Description
Yamato DNF-401 Forced Air Convection Oven (90L)
- Circulation Methods: Forced convection and natural convection in one unit.
- Temperature Range:
- Set range: 0–130°C (no wind), 0–270°C (wind velocity 1–10)
- Control range: RT +25–120°C (no wind), RT +15–260°C (wind velocity 1–10)
- Temperature Accuracy: ±0.3°C at 260°C, fluctuation ±0.5°C, distribution precision ±2.5°C, temperature gradient 7°C.
- Heating: Two 0.6 kW heaters controlled via Triac zero-cross control.
- Airflow Control: 10-stage wind velocity adjustable (600–1500 rpm) plus wind velocity 0; variable air flow system with adjustable damper (manual circulation-ventilation switching).
- Chamber: Stainless steel interior, chemical-proof baked finish exterior, glass wool insulation. Single left side swing door with safety switch.
- Control System: PID Z control with digital ▲/▼ key setting; 99-step programmable operation with repeat and auto start/stop functions; fluorescent digital display (green and orange LEDs) with calibration offset.
- Safety & Diagnostics: Double K-type thermocouple sensors; self-diagnostic features including sensor failure, triac short circuit, overheating protection, earth leakage breaker (30mA sensitivity), fan motor failure, and key lock function.
- Additional Monitoring: Power-on time, operation time accumulation (up to 65,535 hours), accumulated power consumption, CO2 emissions, heater output, power recovery mode, data backup.
- Physical Specs:
- Internal: 450 × 450 × 450 mm
- External: 580 × 645 × 890 mm
- Capacity: 90 L
- Weight: approx. 75 kg
- Shelves: 2 plates with 4 brackets; 11 shelf positions with 30 mm pitch; max 15 kg per shelf.
- Power Supply: AC 115 V, 7.5 A with plug.
- Ports: One 33 mm cable port and inlet port on right side; one 50 mm exhaust port on back side.
Item Stats
Product details
| Model | DNF-401 |
| 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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