Hot Air Oven Universal oven temperature range from few degree above ambient to 250 oC is controlled by a nicety thermostat with sensitivity of plus minus ±2%oC. Hot air oven heating elements are placed in ribs at the bottom and sides. In chamber second removable shelves are provided. Air ventilators are spotted near the top of the side's. Built in L shape thermometer. Double walled inside anodized aluminum/stainless steel. Outside mild steel painted in epoxy powder coating with perforated adjustable shelves. Two indicators, thermostate and on/off switch. To work on 220/230 volts A.C. supplied with or without air circulating fan. A complete cycle involves heating the oven to the required temperature, maintaining that temperature for the proper time interval for that temperature, turning the machine off and cooling the articles in the closed oven till they reach room temperature.
The standard settings for a hot air oven are: 1.5 to 2 hours at 160 °C (320 °F).6 to 12 minutes at 190 °C (374 °F) plus the time required to preheat the chamber before beginning the sterilization cycle. If the door is opened before time, heat escapes and the process becomes incomplete. Thus the cycle must be properly repeated all over. These Hot Air Ovens are widely used universally to sterilize articles that can withstand high temperatures and not get burnt, like glassware and powders. Linen gets burnt and surgical sharps lose their sharpness.
