Fig. 23 Schematic Diagram Of The Decontamination Routine Process - Kendro HERAcell 240 Operating Instructions Manual

10. Cleaning and Disinfection
The ContraCon Decontamination Routine:
The routine is subdivided into four phases. Each of
these phases can be interrupted individually and thus
be skipped.
Initiating the "Quit ContraCon Routine" command
switches the routine to the next phase in the se-
quence. To completely cancel the routine, issue this
command until the display indicates a remaining run-
ning time of "0".
Opening the glass door cancels the routine completely
after this command.
The remaining time indicated for the ContraCon de-
contamination routine designates the time from the
start or the routine's current time status until the unit
has cooled down to the specified temperature set-
point.
Heating phase: Remaining time, ca. 25 h
The sample chamber is heated to 90 °C. Simultane-
ously, a high relative humidity is built up. The tempe-
rature display indicates the current decontamination
temperature.
Decontamination phase: Remaining time, approx.
23 h
Once the decontamination atmosphere has been
established, the 9-hour-long decontamination phase
begins.
Fig. 23, Schematic diagram of the decontamination routine process
Heating Decontamination
HERAcell
Figure 23
If the door is opened during this phase, the deconta-
mination routine will automatically restart once the
door is closed again.
Cooling phase: Remaining time, approx. 14 h
The unit cools down to the specified temperature set-
point.
Post-heating phase: Remaining time, approx. 3 h
During this phase the residual moisture is condensed.
End of the decontamination routine: Remaining ti-
me, 0 h
Once the remaining time displayed is 0 h, the unit has
returned to the originally specified operating tempe-
rature (e.g., 37 °
routine must then be ended by pressing the appro-
priate key.
NOTE - Overtemperature:
If the maximum temperature of 95 °C is exceeded du-
ring the ContraCon decontamination routine, the rou-
tine is aborted and the unit heater is switched off.
Condensation and Cooling
- 52 -
®
240 CO Incubator Operating Instructions
2
. The ContraCon decontamination
C)
Post-heating
Version: 03.2001 / 50065640