Product Description
The Yamato DKN-303 is a 27 litre programmable forced convection oven — the smallest footprint in Yamato’s programmable line, and the one that fits on a bench where a full-size oven will not.
Small does not mean simple. It holds ±0.4 °C fluctuation at 260 °C, tighter than most ovens three times its size, and reaches setpoint at 3.9 °C per minute — roughly 60 minutes from room temperature to 260 °C. It runs multi-step programs, not just a fixed setpoint.
Key Features
- Programmable operation plus fixed temperature, auto start, auto stop, quick auto stop and program auto start
- ±0.4 °C temperature fluctuation at 260 °C
- Triple-pane chemically strengthened observation window, 180 × 180 mm
- 33 mm cable port for thermocouples or sensor leads
- Timer to 999 hours with wait function
- Calibration offset, keypad lock and auto-resume after power failure
- 27 L chamber on a benchtop footprint of 410 × 450 mm
Technical Specifications
| Specification | DKN-303 |
|---|---|
| Circulation method | Forced convection (sirocco fan, capacitor motor) |
| Operating temperature range | Room temp. +10 °C to 260 °C |
| Temperature fluctuation | ±0.4 °C (at 260 °C) |
| Temperature gradient | 9 °C (at 260 °C) |
| Temperature rise rate | 3.9 °C / min |
| Temperature rise time | Approx. 60 min |
| Internal capacity | 27 L |
| Internal dimensions (W × D × H) | 300 × 300 × 300 mm |
| External dimensions (W × D × H) | 410 × 450 × 670 mm |
| Chamber | Stainless steel sheet metal |
| Exterior material | Chromium-free electrogalvanized steel sheet, baked coating |
| Heat insulating material | Glass wool |
| Heater | Stainless steel tube heater, 0.8 kW |
| Observation window | 180 × 180 mm, chemically strengthened glass × 3 panes |
| Cable port | 33 mm I.D. × 1 (right side) |
| Exhaust port | 33 mm I.D. × 2 (top) |
| Temperature controller | PID control by microprocessor |
| Display | Measured temp.: green 4-digit LED · Set temp.: red 4-digit LED |
| Timer | 0 min to 99 h 59 min, and 100 to 999 h 50 min, with timer wait |
| Operation modes | Fixed temperature, program operation, quick auto stop, auto stop, auto start, program auto start |
| Additional functions | Calibration offset, keypad lock, auto-resume mode select |
| Sensor | K thermocouple · independent hydraulic overheat prevention |
| Shelf load capacity | 15 kg per shelf · 30 kg total chamber load |
| Shelf positions / pitch | 6 steps / 30 mm |
| Power source (50/60 Hz) | DKN-303-115V: 115 V 7.5 A (with plug) DKN-303-220V: 220 V 4 A (no plug, round terminal) |
| Unit weight | Approx. 35 kg (77 lb) |
| Shipping weight | 125 lb |
| GTIN | 115 V: 797059932771 · 220 V: 797059932788 |
| Country of origin | China |
Safety Features
- Self-diagnostics: automatic over-temperature protection, temperature sensor failure, heater disconnection, SSR short circuit, main relay failure, memory error, internal communication error, abnormal temperature reading
- Independent over-temperature protection
- Set value lock function
- Overcurrent leakage breaker
What’s Included
- Shelf plate (1 pc.) and brackets (2 pcs.)
- Instruction manual
- One year manufacturer warranty
Compliance
- Manufactured under ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018
- US Harmonized Tariff code 8514.19.0000 · ECCN EAR99
Select 115 V or 220 V above. For quotations, freight and volume pricing, contact Pro Lab Supply.
