Loading ...
Loading ...
Loading ...
CB-S / CB-S-UL (E7) 06/2020 page 87/119
The chamber can perform an automatically controlled hot-air sterilization cycle. This procedure will take
approx. 12 hours and consists of the following steps:
• Heating up phase: The incubator heats up the inner chamber as fast as possible to the sterilization
set-point temperature
• Holding phase: Constant sterilization set-point temperature
The sterilization set-point temperature is pre-set in factory to 190 °C / 374 °F. When this temperature
is reached, the holding phase begins. The duration of the holding phase is in total 4 hours. This en-
sures that 180 °C / 356 °F is maintained on all internal surfaces for at least 30 minutes.
The effective sterilization phase consists of the heating up and holding phase with a total duration of 6
hours. The necessary duration for the proper sterilization is then completed. A cooling-down phase fol-
lows.
• Cooling down phase: Cooling down to 37 °C / 98.6°F. It starts 6 hours after begin of the sterilization
cycle.
As soon as the cooling down phase starts, the information message “Sterilization success” indicates
the successful sterilization.
The precise duration of the entire sterilization cycle depends on the ambient temperature at the installa-
tion site and can thus vary. At an ambient temperature of 25 °C / 77 °F, the total duration is approx. 12
hours. You can shorten the cooling-down time by prematurely terminating the sterilization cycle (chap.
23.4) during the cooling-down phase, i.e. no sooner than after 6 hours.
During sterilization, the CO
2
valve is closed and the CO
2
controller turns off entirely.
23.2 Performing a hot-air sterilization
23.2.1 Preparations for hot-air sterilization
Before carrying out the first hot-air sterilization, remove any protective lamination sheet from
the inner metal surfaces.
• Turn off the chamber
• Pull out the CO
2
sensor without any rotation from the connection socket in the upper part of the rear
and remove it from the inner chamber.
The CO
2
sensor is temperature resistant up to a maximum temperature of 60 °C / 140 °F. It is
therefore required to remove it before performing a hot-air sterilization.
NOTICE
Danger of damage to the CO
2
sensor due to excess temperature.
Damage to the CO
2
sensor.
∅ Do NOT expose the CO
2
sensor to hot-air sterilization.
The CO
2
sensor head was especially adjusted for your specific chamber. To avoid confusion, an ad-
hesive label with a serial number is adhered to the sensor head. When exchanging the sensor, repeat
CO
2
control adjustment.
NOTICE
Danger of confusing CO
2
sensors.
Invalid calibration.
Do NOT change the CO
2
sensor head.
Note down the serial number of the CO
2
sensor.
Loading ...
Loading ...
Loading ...