Eppendorf New Brunswick -86 °C Freezers Innova U360 - Manual (Page 21)

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Innova® U360 -86 °C Freezers — Operating manual
6.2.3 Setting time and date
The freezer is provided with a microprocessor that measures and displays a 24-hour clock, and
both European or US style dating. This feature allows for alarms and other critical activities to be
time/date-stamped for tracking purposes.
To change the Time or Date from the main menu screen:
1. Press the PROG menu key.
2. Press either the TIME or DATE menu key.
The Time/Date editing menu will open.
3. Using the º and » directional keys, select the time or date character positions and modify as
desired.
4. Press SAVE to save the settings or EXIT to return to the previous menu without saving.
5. If you wish to change from European (DD/MM/YY) to U.S. (MM/DD/YY) dating format or vice
versa, select the DATE FORMAT menu with the º and » directional keys, and modify the
format selection using the ¶ and · directional keys.
6. Press SAVE to save your changes.
6.3 Alarm functions and system sensors
The freezer is equipped with multiple sensors that monitor and record critical information about
the freezer and its environment. Many of these sensors are linked to alarms that can be
controlled or modified through the menu system.
The sensors are linked to a sophisticated monitoring system that can identify and advise of
multiple alarm conditions, whether they are temperature- or operation-based. The
temperature-based alarms warn of any temperature deviations, both inside and outside the
freezer cabinet. The operational alarms warn of a malfunction of any of the major components of
the system or sensors within the system.
The following is a list of all temperature-based alarms:
• Cabinet temperature high alarm
• Cabinet temperature low alarm
• Ambient temperature high alarm (fixed at 34 °C)
• Ambient temperature low alarm (fixed at 10 °C)
• Air filter clogged/High condensor temperature alarm
• High cascade condensor temperature alarm
The following is a list of all operational based alarms:
• Door open alarm
• Power failure alarm
• Electrical fault
• Sensor failure
– Cabinet temperature sensor
– Ambient temperature sensor
– Air-cooled condensor temperature sensor
– Cascade condenser temperature sensor
Each alarm is displayed on the main screen for the duration of the alarm or fault condition. All
alarms, including a time/date stamp of their occurrence, are also stored in the alarm log, found in
the DATA menu screen.
6.3.1 Modifying alarm functions
To modify the alarm functions:
1. Press the PROG menu key.
The display will show the setpoint programming screen, (see Fig. 5 on p. 20).
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