CB (E7) 06/2018 Page 138/174
Recommended precautions: To protect the eyes use sealed protective goggles.
CAUTION
Eye contact.
Eye damage due to chemical burns.
∅ Do NOT empty into drains.
Wear protective goggles.
Following frequent use of the disinfectant spray and prior to hot-air sterilization, remove any
agent remainder by using the neutral cleaning agent and then a moistened towel to avoid
formation of permanent residues.
After using the disinfectant spray, allow the chamber to dry thoroughly, and aerate it
sufficiently.
21.3 Hot-air sterilization at 180 °C / 356 °F
The very first sterilization after operation may cause an odor. This is not a quality defect. We
recommend ventilating well the room during sterilization.
21.3.1 Overview
Holding Cooling down Equilibrating
4 hours 6 hours
unlimited
Sterilization cycle of 10 hours
Figure 29: Setpoint profile during the sterilization cycle
The chamber can perform an automatically controlled hot-air sterilization cycle. This procedure will take
approx. 10 hours and consists of the following steps:
• Heating up phase: The chamber heats up the inner chamber as fast as possible to the sterilization
setpoint temperature
• Holding phase: Constant sterilization setpoint temperature
The sterilization setpoint temperature is pre-set in factory to 187.5 °C / 369.5 °F. The duration of the
heating up and holding phase is in total 4 hours. This ensures that 180 °C / 356 °F is maintained on all
internal surfaces for at least 30 minutes
• Cooling down phase: Programmed duration of 6 hours until 37 °C / 98.6°F is reached
• Then follows an equilibration phase: After the 10-hour sterilization cycle the controller changes to
fixed value operation mode and equilibrates to the set-point which has been entered there (e.g., 37 °C
/ 98.6 °F).
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