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Yamato DNF-911 540L Forced Convection Oven with Programmable Control
Product Description
The Yamato DNF-911 is a programmable forced convection oven featuring:
- Circulation: Dual mode with forced and natural convection
- Air Velocity: Adjustable in 10 digital steps (600–1500 rpm) plus zero velocity mode
- Temperature Range:
- External: 5–35°C
- Set: 0–130°C (wind velocity 0), 0–270°C (wind velocities 1–10)
- Control: RT+25–120°C (velocity 0), RT+15–260°C (velocity 1–10)
- Temperature Accuracy: ±0.3°C at 260°C
- Temperature Stability: ±0.5°C at 260°C
- Temperature Distribution: ±2.5°C at 260°C
- Temperature Gradient: 8°C at 260°C
- Heat-up Time: 100 minutes
- Construction:
- Chamber: stainless steel
- Exterior: cold rolled steel with chemical-proof baked finish
- Insulation: glass wool
- Door: Single swing, left side
- Heating: Two stainless steel tube heaters, 0.83 kW each
- Damper: Manual circulation-ventilation switching with interlocked intake/exhaust system; full damper open limits max temp to <260°C
- Ports:
- Cable port (33 mm ID, right side)
- Exhaust port (50 mm OD, back)
- Inlet port (33 mm ID, right side)
- Controller: Model V type PID Z with digital ▲/▼ input and LED display (green 4-digit temp readout, orange 5-digit temp set display)
- Programming:
- Up to 99 programmable steps/patterns with repeat function
- Auto start/stop and quick stop functions
- Additional Features:
- Power consumption monitoring and CO2 emission display
- Calibration offset
- Power recovery mode
- Data backup and recovery
- Sensors and Safety:
- Dual K-type thermocouple sensors for control and independent overheat prevention
- Triac heater control with zero-cross switching
- Self-diagnostics including sensor failure, triac short circuit, overheat prevention, heater line disconnect, relay contact damage
- Earth leakage breaker (30 mA sensitivity)
- Door switch disables heater and fan when open
- Dimensions (W×D×H):
- Internal: 600×500×500 mm
- External: 730×695×940 mm
- Capacity: 150 liters
- Weight: 90 kg
- Shelves: 2 plates with 4 brackets, 13-step height adjustment at 30 mm pitch, 15 kg max load per shelf
- Power Supply: Single phase AC115V 15A (with plug) or AC220V 8A (no plug, round terminal), 50/60 Hz
This unit offers precise temperature control with eco-friendly energy-saving features suitable for a variety of laboratory drying, heating, and conditioning applications requiring programmable forced convection and temperature uniformity.
Item Stats
Product details
| 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 | 8°C (at 260°C) |
| Temp. Rise Time *¹ | 100min. |
| Chamber / Exterior / Insulation | Stainless steel / Cold rolled steel paneling, chemical-proof baked-on finish / Glass wool |
| Door | Single swing(left side) |
| Heater (Stainless Steel Tube) | 0.83kWx2 |
| 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)*² | 600×500×500 |
| External Dimensions (W×D×H Mm)*² | 730×695×940 |
| Capacity | 150L |
| Weight | 90kg |
| Number Of Shelf Bracket Step / Pitch | 13 steps/30mm |
| Withstand Load Of Shelf | 15kg/shelf |
| Power Supply V±10% 50/60Hz Single Phase | AC115V 15A (with plug) AC220V 8A (no plug, round terminal) |
| Shelf Plate / Bracket | 2 pcs. / 4 pcs. |
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