User Manual

User Instructions Ultra Low Temperature Freezers Model LAB
Side 4 | 14
compartment grill, and clean the compressor
compartment eventually with a vacuum
cleaner.
If the cleaning process is neglected there is a
risk that the performance of the freezer will
be effected, and even damage to the
compressor could occur due to overheating.
11. Storage
If the freezer is stored for a period of the time,
the lid should be kept open for free circulation
of air inside the cabinet in order to avoid
corrosion of the inner liner.
12. Temperature control
LAB freezers
The temperature inside the freezer is
controlled by the electronic controller placed
in the front grill.
The controller has a digital readout of the
temperature inside the cabinet, and the option
of changing the temperature inside the
cabinet.
13. External voltage and
temperature alarm
Optionally the freezer can be equipped with a
battery operated alarm box with connections
for external alarm for voltage failure and
temperature alarm. The battery should be
exchanged every two years.
Please note! When commissioning the
freezer, the battery must be turned into its
correct position.
14. Dixell controller
15. Functions
How to see the set point:
1. Press and immediately release the SET key,
the display will now show the set point value.
2. Press and immediately release the SET key
or wait for 5 seconds to display the probe
value again.
How to lock and unlock the keyboard:
1. Press the up and down keys simultaneously
for more than 3 seconds.
How to change the set point:
1. Press the SET key for more than 3 seconds
to change the set point value.
2. The set point value will be displayed and
the LED starts flashing.
3. To change the set point value, push the up
or down arrow.
4. To memorise the new setting press the SET
key again or wait 15 seconds for the
controller to return to normal display of the
probe temperature.
16. Setting the controllers
offset value
The freezer is designed for long time and safe
storage of sensitive food products.
In some situations, the LAB freezer is also
used for other applications like in laboratories
for different low temperature test.
Depending on the actual situation it might be
necessary to change the controllers offset