





– Fuzzy function to prevent overheat.
– Accurate temperature controls by Digital PID controller.
– Set time /temperature function
– Controller select time scale (59 mininute 59 second, 99 hour 59 minute, 99 day 23 hour)
– In case of temperature sensor disconnection, error message appear.
– Alarm rings when timer end.
– In case of difference between real temperature and appeared temperature, user can adjust correctly.
– When controller setting value is changed by the mistake of operation, save and recall function can restore it early.
– User can adjust temperature not to raise up certain degree from installed temperature.
– Threefold tempered safety glass windows for excellent insulation and easy observation
– Buffering device to enhance door adherence for insulation.
– Upper vent to emit moist and gas of samples after evaporation.
– STS #304 used in inside chamber for durability.
– Circuit breaker for electrical safety

Threefold easy to view observation Window with excellent insulation.

Door open & close easy operation.

For safety, overheat, over current Protection installed.

Well ventilated height adjustable stainless steel shelves, easy to clean up.
| Spec. / Model | DO-42 | DO-81 | DO-150 | |
| Type | 1 door | |||
| Convection Type | Natural convection | |||
| Temp | Range | Max 250 °C | ||
| Controller | Digital P.I.D controller | |||
| Size | Internal (W x D x H, mm) | 350x350x350 | 450x400x450 | 600x500x500 |
| External (W x D x H, mm) | 520x525x770 | 620x575x870 | 770x675x920 | |
| Safety | Electrical | ELB(Earth Leakage Breaker) | ||
| Over Temp limiter. | ||||
| Material | Internal | Stainless steel | ||
| External | Steel, Powder coating | |||
| Shelves (W x D, mm) | STS #304 Wire Electro-Polished | |||
| 327x300, 2ea | 427x350 , 2ea | 577x450, 3ea | ||
| Heater | Sheath heater | |||
| Insulation | Ceramic wool+ Glass wool | |||
| Door Packing | High Temp. grade foamed silicone rubber | |||
| Windows | Tempered safety glass, Three fold | |||
| Electric Requirements | 220VAC. 50/60Hz | |||
| Power Consumption | 800W | 1200W | 1500W | |

| Model | Number of basic / Max shelves | Shelf Size | Length of Shelf | Interval of Shelves |
| DO-42 | 2/9 | 327x300 | 280mm | 30mm |
| DO-81 | 2/12 | 427x350 | 330mm | |
| DO-150 | 2/14 | 577x450 | 430mm |




| Model | W | D | H | H2 | e | f | g | |
| Dimension | DO-42 | 520 | 525 | 750 | 710 | 150 | 230 | 150 |
| DO-81 | 620 | 575 | 850 | 810 | 210 | 330 | 150 | |
| DO-150 | 770 | 675 | 900 | 860 | 210 | 330 | 150 |