Eppendorf Galaxy CO2 Sensor - Manual (Page 68)

Equipment options
Galaxy
® 170 R/170 S CO
2
Incubators
English (EN)
68
12.3 High temperature disinfection
The High Temperature Disinfection option is designed to heat the internal chamber to 120 °C, maintain that
temperature for 4 hours, and then allow the chamber to cool down to 37 °C or to the programmed
temperature (if different from 37 °C) when normal control takes over. The cycle is designed to disinfect all
internal surfaces and components, with the exception of the Oxygen control sensor where supplied.
12.3.1 Using the high temperature disinfection (Galaxy R)
Prerequisites
• The incubator should be cleaned, disinfected, and dried thoroughly before starting the cycle, (see
Disinfection/Decontamination on p. 53).
• The black protective cover must be removed (the white porous cover can remain in place).
• The shelves, shelf racks, humidity tray and silicone rubber feet and sleeves should all be in place during
the cycle.
• The incubator MUST be clean and dry.
• The humidity tray MUST be empty, clean and dry.
1. Press the USER menu button, select DISINFECTION and press START. The incubator will then prompt:
IS CHAMBER CLEAN & DRY? Answer YES if it is clean and dry.
The cycle will start automatically, unless the incubator is fitted with Oxygen Control, in which case the
incubator will also prompt:
IS O
2
SENSOR REMOVED? Ensure that the O
2
sensor has been removed and
answer YES to begin the cycle, (see High temperature disinfection option with oxygen control on p. 71)
2. To cancel the cycle, press CANCEL. The incubator will cool down to the programmed level where
normal control takes over.
3. If the incubator door is opened during a disinfection cycle, the process will continue as normal, a failure
message will occur due to low temperature.
4. After completion of the process, one of the following status messages will be displayed. If the cycle:
WARNING! Risk of personal injury
Burns due to hot surface.
 Do not touch the equipment during the high temperature disinfection cycle.
 Do not open equipment door during the cycle.
NOTICE! Risk of material damage
 To avoid possible damage to the CO
2
sensor, never leave water in the humidity tray while
the incubator is switched off, or when a high temperature disinfection cycle is initiated
(optional feature).
 Allow a clearance of 50 mm (2 in) to allow access for oxygen sensor (if installed) removal.
If a Auto-Zero is scheduled to begin prior to a disinfection cycle, the Auto-Zero will abort until
the cycle is complete. A user initiated Auto-Zero will also abort but will not resume after
completion of the disinfection cycle.
Certain areas of the glass door and inner door seal surface temperatures will be ± 5 °C of
120 °C.