2 - Key DOWN : Used for decreasing the values to be set and for
selecting the parameters.
3 - Key UP/DEFROST : Used for increasing the value to be set, for
selecting the parameters and for activating manual defrosting.
4 - Key U : It can be programmed via the parameter “USrb” to turning
on and off (stand-by) the device. In the “hidden” parameter programming
mode it’s used to modify the visibility of the parameters
(see par. 2.4).
5 - Led SET : Indicates the input in programming mode and the
programming level of the parameters. It also serves to indicate the
Stand-by status.
6 - Led OUT : Indicates the compressor output status (or the temperature
control device) on (on), off (off) or inhibited (flashing).
7 - Led DEF : Indicates defrosting in progress (on) or dripping
(flashing).
8 - Led AL : Indicates the alarm status (on), off (off) and silenced
(flashing)
2 - PROGRAMMING
2.1 - PROGRAMMING OF THE SET POINT
Press the key P then release it and the display will show SP alternating
with the set value.
To change it press the UP key to increase the value or DOWN to
decrease it.
These keys increase or decrease the value one digit at a time, but
if the button is pressed for more than one second the value increase
or decreases rapidly, and after two seconds pressed, the
speed increases even more to all the desired valued to be reached
rapidly.
Exiting the Set mode is achieved by pressing the P key or automatically
if no key is pressed for 15 seconds. After that time the
display returns to the normal function mode.
2.2 - PARAMETERS PROGRAMMING
To access the instrument’s function parameters, press the key P
and keep it pressed for about 5 seconds, after which the SET led
will light up, the display will visualised the code that identifies the
first parameter.
Using the UP and DOWN keys, the desired parameter can be selected
and pressing the P key, the display will alternately show the
parameter code and its setting that can be changed with the UP
and DOWN keys.
Once the desired value has been set, press the key P again: the
new value will be memorised and the display will show only the
code of the selected parameter.
Pressing the UP and DOWN keys, it is possible to select another
parameter and change it as described.
To exit the programming mode, do not press any key for about 20
seconds, or keep the UP or DOWN key pressed until it exits the
programming mode.
2.3 - PARAMETER PROTECTION USING THE PASSWORD
The instrument has a parameter protection function using a password
that can be personalised, through the “PASS” parameter.
If one wishes to have this protection, set the password number desired
in the parameter “PASS”.
When the protection is working, press the P key to access the parameters
and keep it press for about 5 seconds, after which the
LED SET will flash and the display will show “0” .
At this point, using the UP and DOWN keys, set the password
number programmed and press the key "P".
If the password is correct, the display will visualise the code that
identifies the first parameter and it will be possible to programme
the instrument in the same ways described in the previous section.
Protection using a password can be disabled by setting the parameter
“PASS” = OFF.
2.4 - PARAMETERS PROGRAMMING LEVELS
The instrument has two parameter programming levels.
The first level (“visible” parameters) is accessed according to the
procedure described above (with or without password request