Natural Convection Oven 28L Overview
The Natural Convection Oven 28L (Yamato Scientific model DX302C) is a digital constant-temperature drying oven covering an operating range of ambient +5 to 300°C across 28 liters of chamber capacity. LabSupplies.com supplies this unit as an authorized Yamato Scientific dealer, shipping genuine equipment from USA inventory.
Gravity convection circulates heated air without a fan, protecting lightweight samples from displacement during drying. Interior surfaces use stainless steel to resist corrosion, while the exterior is built from SPCC steel plate with powder coating. Digital PID control, a calibration offset function, and self-diagnostic safety routines support repeatable temperature accuracy.
Procurement teams choose 115V (DX302C) or 220V (DX312C) to match available site power. Each oven measures 36 × 36 × 35 inches and ships at roughly 130 lbs. Manufacturing follows ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 management systems; Yamato documents the country of origin as Switzerland (CH).
Key Features
- Wide temperature range: operates from ambient +5 to 300°C for general drying and constant-temperature work.
- Digital PID controller: maintains setpoint accuracy across the 28 L chamber.
- Calibration offset: built-in adjustment aligns displayed and actual temperature for validated processes.
- Self-diagnostic safety functions: on-board monitoring flags faults to protect samples and the unit.
- Natural gravity convection: fan-free airflow keeps lightweight specimens stationary during heating.
- Durable construction: stainless steel interior with a powder-coated SPCC steel exterior for long service life.
How to Choose the Right Convection Oven
Selecting a drying oven comes down to matching chamber capacity, temperature performance, and site power to your workflow. Use the criteria below to confirm the DX302C family fits your bench and protocols.
- Capacity: a 28 L chamber suits batch drying of glassware, samples, and components without overcrowding the rack space.
- Temperature range: ambient +5 to 300°C covers moisture removal, curing, and constant-temperature holds; verify your highest required setpoint sits within range.
- Control type: digital PID control with calibration offset matters for labs that document temperature accuracy and need reproducible results.
- Voltage: order DX302C for 115V circuits or DX312C for 220V to match facility power and avoid transformer workarounds.
- Footprint: confirm bench or floor clearance for the 36 × 36 × 35 inch envelope and the unit's ~130 lb weight.
- Convection method: natural gravity convection is preferred when fan-driven airflow could disturb lightweight or powdered samples.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 28 L |
| Voltage | 115V |
| Circulation Method | Natural gravity convection |
| Temperature Control System | PID control by microprocessor |
| Sensor | K-thermocouple |
| Interior Material | Stainless steel |
| Exterior Material | Electro-galvanized steel sheet with melamine resin baked finish |
| Heat Insulation | Glass wool |
| Safety Devices | Self-diagnostic functions (sensor error, memory error, input/measured temperature error, automatic overheat prevention); key lock; independent overheat prevention device; overcurrent leakage breaker |
| Temperature Accuracy | ±1°C (at 300°C) *2 |
| Temperature Distribution | ±10°C (at 300°C) *2 |
| Heater | Iron-chrome wire heater, 0.9 kW |
| Max. Temperature Reaching Time | Approx. 45 min |
| Operating Temperature Range | ambient +5 to 300°C *1 |
| Material | Steel plate SPCC powder coating (exterior) Stainless steel (interior) |
| Country of Origin | China |
| GTIN (Barcode) | 797059926237 |
| Shipping Weight | 130 lbs |
| Dimensions (L × W × H) | 36 × 36 × 35 in |
| Component Size | 28 L |
*1 No-load operation of bath only; maximum temperature varies with circumstances and operating conditions. *2 Measured under ambient temperature 23°C ±5°C, humidity 65%RH ±20%, per Yamato Scientific test conditions.
Available Sizes and Configurations
| SKU | Configuration | Pack |
|---|---|---|
| DX-302C | 115V | EA |
| DX-312C | 220V | EA |
Documentation
More in This Series
- Natural Convection Oven 74L
- Natural Convection Oven 153L
- Natural Convection Oven Programmable 99L
- Natural Convection Oven Programmable 162L
- High Temperature Natural Convection Oven Programmable 13.75L
- Natural Convection Glassware Drying Oven 92L
- Natural Convection Glassware Drying Oven With Sterilization Lamp 92L
- Natural Convection Glassware Drying Oven 445L
- Natural/Forced Convection Glassware Drying Oven With Sterilization Lamp 445L
- Forced Convection Oven 27L
- Forced Convection Oven 90L
- Forced Convection Oven 150L
- Forced Convection Oven Programmable 27L
- Forced Convection Oven Programmable 90L
- Forced Convection Oven Programmable 150L
- Forced Convection Oven Programmable 300L
- Forced Convection Oven Programmable 535L
- Forced Convection Oven Programmable Energy Saving 90L
- Forced Convection Oven Programmable Energy Saving 150L
- Forced Convection Oven Programmable Energy Saving 300L
- Forced Convection Oven Programmable Energy Saving 540L
- Forced / Natural Convection Oven Programmable Energy Saving 27L With External Transformer
- Forced / Natural Convection Oven Programmable Energy Saving 90L
- Forced / Natural Convection Oven Programmable Energy Saving 150L
- Forced Convection Oven Programmable Energy Saving 300L
- Forced Convection Oven Programmable Energy Saving 540L
Why Buy From LabSupplies.com
LabSupplies.com sells the DX302C and DX312C directly as an authorized Yamato Scientific dealer, so you order a genuine unit backed by manufacturer warranty and ready to ship.
- Authorized Yamato Scientific dealer: genuine equipment with full manufacturer warranty coverage.
- In stock: available now and ready to process.
- Ships from USA inventory: domestic fulfillment for faster, predictable delivery.
- Lab-equipment specialists: dedicated support for spec, voltage, and configuration questions before you order.
Frequently Asked Questions
What is the operating temperature range of the DX302C oven?
The DX302C operates from ambient +5 to 300°C. This range supports moisture removal, curing, and constant-temperature holds in a single unit.
What is the chamber capacity and overall size?
Chamber capacity is 28 liters. The oven measures 36 × 36 × 35 inches and weighs approximately 130 lbs, so confirm bench or floor clearance before installation.
What is the difference between the DX302C and DX312C?
Voltage is the only difference. The DX302C runs on 115V and the DX312C runs on 220V; capacity, temperature range, controls, and construction are identical.
What materials are used in the oven construction?
The interior is stainless steel for corrosion resistance, and the exterior is SPCC steel plate with powder coating for durability.
Does this oven use a fan for air circulation?
No, it uses natural gravity convection. Fan-free airflow keeps lightweight and powdered samples from being displaced during heating.
How is temperature controlled and calibrated?
A digital PID controller maintains the setpoint, and a built-in calibration offset function lets you align displayed and actual temperature for validated processes.