7
16. 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.
17. Setting the controllers offset value
The LCF freezer is designed for long time and safe storage of sensitive products. In some situations the
LCF 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 value in order to
get a correspondence between the reading on the display and the actual temperature inside the cabinet.
The factory setting is an offset of 2 dgr:C. The offset can be adjusted in the following way.
Unlock the keyboard.
Enter the programming mode by pressing the SET and arrow down keys for 3 seconds.
Select the parameter “Opb” by pressing arrow up or down key.
Press the SET key to display its value.
Use arrow up or down to change its value. The offset can be adjusted to +/- 12 dgr .C
Press SET to store the new value.
Press SET + arrow up or wait 15 seconds without pressing any key. The new value will now be stored.
For more detailed information about programming the Dixell controllers please consult the attached
manuals.
18. Trouble shooting.
The appliance is not operating. Please check:
Is the electrical plug connected to the mains (wall socket)? Has the fuse blown?
The temperature inside the appliance is too high. Please check:
Is the Dixell controller set to the correct temperature?
Has an excess amount of ice formed inside the appliance?
The appliance is operating continuously. Please check:
Is the ambient temperature very high?
Has the appliance recently been loaded with a large amount of warm products?
If you have checked the above points and the appliance is still not working as expected, please contact
your local dealer for further advice.