Binder CB 170, Operating Manual

Page: 142 / 175

CB (E7) 06/2018 Page 142/174
21.3.4.1 Prematurely terminating the sterilization cycle after less than 4 hours:
Ineffective sterilization
After prematurely terminating the sterilization
cycle after less than 4 hours, the information
“Sterilization failed” is shown on the controller
display.
The interior may still be hot. Do not touch the
glass door and inner surfaces!
Confirm the message with the Confirm icon.
After confirming the message the controller changes to Fixed value operation mode. The setpoints of
Fixed value operation mode are then equilibrated.
CO
2
/ O
2
control is deactivated and will only be activated after confirming the information
message “Sterilization failed” and when the temperature has cooled down to a value below <
80 °C.
When prematurely terminating the sterilization cycle, it may be that the cells/pathogens inside the
chamber have not all been killed. If necessary, you should repeat the sterilization.
CAUTION
Interruption of temperature reaction time.
Ineffective sterilization.

If necessary, repeat the sterilization.
CAUTION
Glass door and inner chamber become hot during sterilization.
Danger of burning.
∅
Do NOT touch the glass door and inner surfaces for approx. 7 hours after prematurely
terminating the sterilization cycle.
21.3.4.2 Prematurely terminating the sterilization cycle after more than 4 hours, i.e.,
during the cooling-down phase: successful sterilization
The duration of the entire sterilization is 10 hours. If you want to shorten the sterilization procedure in
order to save time, you can prematurely terminate it during the cooling-down phase, i.e. no sooner than
after 4 hours. At this point, the inner temperature is still approx. 140 °C
/ 284 °F.
The effective sterilization phase (heating up and holding phase) is automatically finished after 4 hours
The chamber is in the cooling-down phase, meaning that the necessary duration for the proper
sterilization has occurred.