Instructions, Maintenance and Service Manual ULTRAFREEZER Series
9
7.
ULTRAFREEZER FUNCTIONING
7.1.
Entry of the Access code
Insert a special 4-digit password to avoid undesirable alterations of the settings by non-
authorized users or to switch the controller on or off.
Press the
Code button
. After that, it’s possible to enter an access code with a combination of
the following 6 buttons:
▲
= 1;
Setp.
= 2;
Batt.
= 3,
▼
= 4;
Prg
= 5 and
Code
= 6 .
The standard factory password is ‘1 2 3 4’.
During the input of the password, the led above the
‘CODE’
button flickers. When the code is correct, the led above the
‘CODE’
button will burn
continuously.
By pressing again on the
Code
button, the led above the
‘Code’
button will switch off and it is
not possible anymore to modify it again. If during 30 seconds no button is pressed,
automatically the adjust mode will be de-activated. In order to enter again in the Control Panel,
digit the password (as described here above).
Before doing any of the below operations, make sure to have entered the password.
7.2.
Switching ON/OFF
Plug in the ultrafreezer.
The ULTRAFREEZER is switched on by pressing the
‘POWER ON/OFF’
button, if the access code
is correct (led above code button is switched on). Once switched on the freezer the controller
will display the temperature detected by the temperature sensor and the temperature alarm
relay will be activated. When the controller is off you have to enter the correct code first by
pressing the
‘CODE’
button. Then the
‘POWER ON/OFF’
button can be used again. If the
ULTRAFREEZER is not switched off following the described procedure, the display will continue
to visualize the chamber temperature and to signal alarm till the battery won’t be completely
discharged.
7.3.
Reading the setpoint
By pressing the
‘SETP.’
button, the value of the setpoint will appear on the display. After
releasing the
‘SETP.’
button, the actual temperature will appear in the display.
7.4. Reading the battery capacity
When the
‘BATT.’
button is pressed, the display will show the current capacity of the battery.