Technical data

C 150 (E2) 12/2012 page 66/90
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 aborting the sterilization cycle (chap. 15.5) 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.
15.4.2 Procedure for hot-air sterilization:
Before carrying out the first hot-air sterilization, remove any protective lamination sheet from
the inner metal surfaces.
When starting a hot-air sterilization, CO
2
control automatically becomes inactive.
The safety controller settings are inactive during sterilization. They become functional again
following abortion of the sterilization and/or restart of the unit at the main power switch.
• Turn off the unit
• 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.
CAUTION
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.
CAUTION
Different CO
2
sensor.
Invalid calibration.
∅ Do NOT change the CO
2
sensor head.
 Write to down the serial number of the CO
2
sensor.
• Empty the water pan.
WARNING
Danger of implosion.
Damage to the unit.
 Empty the water pan before starting the hot-air sterilization.
• Clean the C 150.
• Water pan and shelves must be inside the incubator, the water pan at its usual place on the bottom.
• Close the inner glass door and the outer unit door.
• Turn on the unit.
• Activate the sterilization procedure: Press the controller button “180 °C” for 3 seconds to access the
sterilization program.