Liebherr WTes 5872 Vinidor - Manual (Page 4)

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7
Cal.1 1.0°C 0.5°C Cal.2 8.0°C -0.4°C Cal.3 15.0°C 0.8°C
+0.5°C
-0.4°C
+0.8°C
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Innovative expertise and drive in the
laboratory sector
T he demands made on refrigerators and freezers are particularly
high in all the sectors of professional use. Whether the issue is
the refrigeration performance, specifying the materials, designing
the refrigeration components or evolving the design concepts – all
the decisions are directed to ensuring the long-term, trouble-free
use of our appliances.
The most stringent reliability and safety standards apply to appliances
in the laboratory sector. Therefore Liebherr has a range of purpose-
built and factory-designed laboratory appliances in different
temperature ranges for numerous applications. The MediLine
appliances incorporating Profi electronic controllers offer many
advantages. High-grade materials, high-performance components
and accurate workmanship right down to the last detail ensure the
high quality of the Liebherr appliances.
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The Profi electronic controller
The menu-guided Profi electronic controller with integrated real-time clock allows the temperature to
be set to 1/10°C accuracy. The text display has German, English, French, Spanish or Italian language
setting options. To satisfy laboratory hygiene requirements, the electronic controller is fl ush-fi tted and
has an easy-clean membrane keypad.
Mains-independent power supply of the electronic controller
In case of power failure, the electronic controller continues to operate from an integrated 12 V battery.
As a result, the memory continues to log the internal temperatures for another 72 hours even in the
event of power failure. Furthermore, if external alarm and documentation systems are connected, the
data transfer is maintained for as long as 72 hours.
Integrated alarm systems
A visual and audible temperature alarm alerts the user if temperature deviation limits are exceeded. In
addition, a visual and audible alarm is activated if the door is open for longer than 1 minute. There is
also an immediate visual and audible alarm in the event of power failure.
Integrated data memory
The Profi electronic controller has an integrated data memory which logs the last 30 alarm events
including date, time and maximum temperature as well as the internal temperature profi le at 4-minute
intervals. 2800 temperature logs are stored to memory, which corresponds to approximately a 7-day
logging period.
3-point calibration
The laboratory appliances with Profi electronic controllers provide 3-point calibration for extremely
accurate temperature control. This permits compensation between the set temperature and the actual
internal temperature at as many as three temperature points. Positive or negative changes to the
correction value can be made in steps of 0.1K.
The laboratory refrigerators and freezers
with Profi electronic controllers
72 hours
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