4
-
deleting the compressor operating hours
-
setting the real date and time.
Operate as follows to unlock the keyboard:
1.
Make sure no procedures are in progress
2.
Hold the DOWN key and the START/STOP key down for 1 s: the display will show “UnL” for 1 s.
2
OPERATION
2.1
Foreword
The devices can manage the following operating cycles:
-
blast chilling and storage
-
hard blast chilling and storage
-
deep freezing and storage
-
soft deep freezing and storage.
2.2
Blast chilling and storage
The temperature-controlled blast chilling and storage cycle is divided into the following two phases:
-
blast chilling
-
storage
On conclusion of a phase, the device passes automatically to the next.
Operate as indicated to start the cycle:
1.
Make sure the device is in the "on" status.
2.
Make sure that the keyboard is not locked and that no procedure is in progress.
3.
Press and release the BLAST CHILLING key: the LED and the
LED will flash.
press and release the BLAST CHILLING key to start the cycle with timed-control: the LED and the LED will
flash and the
LED will switch off (press and release the BLAST CHILLING key again to start the cycle with
temperature-control).
4.1
the display will show the work set-point during blast chilling;
If it has been decided to start the cycle with timed-control, the display will show the duration of time-controlled
blast chilling;
If it has been decided to start the cycle with timed-control, the display will show the duration of time-controlled
blast chilling;
5.
Press and release the START/STOP key: the
LED will remain permanently on and the test to verify the
correct insertion of the needle probe will be started;
If it has been decided to start the cycle with timed-control, also the will remain permanently on and the
cycle will be started with timed-control.
5.1
If the test is completed successfully, the cycle will be started.
5.2
If the test is not completed successfully, the cycle will be started with timed-control.
During blast chilling, the display shows the residual time of the blast chilling duration and the LED is
on.
To modify the residual time, operate as indicated:
5.2.1
Press and release the UP or DOWN key again to modify the time value: the display will flash.
5.2.2
Do not operate for 4 s: the display will stop flashing and remain on permanently.
Operate as indicated to stop the cycle:
6.
Hold the START/STOP key down.
During blast chilling, the display shows the temperature detected by the needle probe and the
LED is on.