Eppendorf New Brunswick -86 °C Freezers Innova U360 - Manual (Page 26)

Innova® U360 -86 °C Freezers — Operating manual
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6.6 Data storage and viewing
The freezer is equipped with multiple sensors that help to maintain its operation and to warn of
conditions that can affect performance. Among the sensors are:
• A cabinet temperature probe
• An air-cooled condenser probe
• A cascade condenser probe
• An ambient temperature probe
• A door position sensor
The information from each sensor is recorded by the system processor, and updated to the
display screen and memory log. The system stores data from each of the sensors every 60
seconds.
Up to 30 days worth of stored data can be viewed anytime by pressing the DATA menu key and
selecting one of the DATA LOG choices.
• ALARM LOG
• CABINET & AMBIENT TEMPERATURE GRAPH
• 1ST STAGE CYCLING & CONDENSER TEMPERATURE GRAPH
• 2ND STAGE CYCLING & CONDENSER TEMPERATURE GRAPH
6.6.1 Alarm log
The alarm log records all alarms activated on the system in sequential order based upon their
time/date stamp. The most recent alarm appears at the bottom of the screen (see Fig. 9 on
p. 26). This log also records any alarm mute activity and alarm acknowledgements, including the
USER ID and time and date of acknowledgment.
Use the º and » directional keys to review any historical log data that is not visible on the screen.
The entire log can be cleared at any time by pressing the CLEAR menu button. To leave this
screen, press the EXIT menu key.
Abb. 9: Alarm log screen
Fig. 9: Alarm log screen
6.6.2 Cabinet and ambient temperature graph
Information about the internal cabinet temperature and ambient room temperature is viewable
through the CABINET & AMBIENT TEMPERATURE GRAPH. This graph provides a running
display of cabinet and ambient temperatures; it also identifies the time and duration of outer door
openings (see Fig. 10 on p. 27).
To allow for more detailed viewing, both the time and temperature scales may be expanded or
contracted by pressing the ZOOM X button to scale the X or time axis, and the ZOOM Y button to
scale the Y or temperature axis. The entire temperature log may be deleted by pressing the
DELETE key (see Fig. 10 on p. 27).
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Op
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