The Yamato DNF-301-115V is a 27-liter programmable oven that combines forced and natural convection in one chamber, the DNF line's "2-in-1" system. Switch to forced convection for fast, uniform heating up to 260 °C, or drop to natural convection for still-air drying up to 120 °C, from one unit. Variable air-flow and on-board power/CO₂ monitoring make it a genuine energy-saving oven. This 115 V configuration is supplied with an external transformer.
Key Specifications
| SKU | DNF-301-115V |
| Model | Yamato DNF301-115V / DNF-series |
| Circulation | Forced convection + natural convection (2-in-1) |
| Temperature control range | RT +25 to 120 °C (wind 0) / RT +15 to 260 °C (wind 1–10) |
| Control accuracy | ±0.3 °C at 260 °C (forced) / ±0.5 °C at 120 °C (natural) |
| Uniformity / rise time | 5 °C gradient at 260 °C; ~70 min to temp (forced) |
| Internal capacity | 27 L |
| Heater / air velocity | Stainless-steel tube 0.8 kW; 10 steps (600–1500 rpm) + wind 0 |
| Program operation | Up to 99 steps / 99 patterns, repeat, auto start/stop |
| Controller / sensor | Model V, PID Z control; K-type double thermocouple |
| Shelves | 2 plates + 4 brackets, 6 steps at 30 mm, 15 kg each |
| Dimensions / weight | int. 300³ mm / ext. 430 × 495 × 740 mm; ~50 kg |
| Power supply | 115V 7.5 A, 50/60 Hz single phase (with plug), with external transformer |
Application Profile
The DNF-301-115V solves a common tradeoff: forced-air ovens heat fast and evenly but disturb light samples, while natural-convection ovens are gentle but slower and less uniform. Yamato's 2-in-1 circulation puts both in one chamber, selectable by wind-velocity setting. At full forced convection it holds ±0.3 °C accuracy at 260 °C with a 5 °C gradient, tight enough for standardized drying, curing, and heat treatment; at wind velocity 0 it becomes a still-air oven for delicate loads. The "eco-oven" design earns its name through variable air-flow, an adjustable damper, and Model V monitoring of accumulated power consumption, CO₂ emissions, and heater output. A double K-thermocouple sensor drives control and independent overheat protection, and a door switch cuts fan and heater on opening. It is not explosion-proof.
Frequently Asked Questions
What does the "2-in-1" system mean? The DNF-301-115V provides both forced and natural convection in a single unit, selectable via the wind-velocity setting (0 for natural, 1–10 for forced), no need for two separate ovens.
Why does the 115 V version include an external transformer? The brochure's power-supply row lists the DNF301 as 115 V 7.5 A with plug and an external transformer. It ships with this SKU. Confirm final voltage and plug at order.
Can it run unattended programs? Yes, up to 99 program steps or 99 patterns with repeat, auto start/stop, and quick auto stop, via the Model V controller.
Ordering & Configuration
Confirm at quote: supply voltage and the external-transformer configuration, additional shelves (code 212068), a stand (ON30), and exhaust-duct or output-terminal options specified with the main unit. Warranty: per Yamato standard capital-equipment terms. Add the Yamato DNF-301-115V to a quote to lock voltage and lead time.
Choosing within the DNF line: DNF-401/411 (90 L) share the 2-in-1 system for larger loads; DNF-601/611 (150 L) and DNF-811/911 (300–540 L) are forced-convection floor models. Pick the DNF-301-115V for full DNF programmability and dual convection in the smallest footprint. Confirm the 115 V transformer setup at order.
