EVCO EVF818P9 User Manual

Page 22

EVCO S.p.A.

EVF818 | Installer manual ver. 1.0 | Code 144F818E104

page 22 of 76

On conclusion of a phase, the device passes automatically to the next.

Operate as indicated to start the cycle:

Make sure the device is in the "on" status.

Make sure that the keyboard is not locked and that no procedure is in progress.

Press and release the BLAST CHILLING key: the LED and the

LED will flash.

4.1

If parameter r19 is set at 0, the 4 digit display will show the work set-point during blast chilling; this value can

also be set via parameter r7.

4.2

If parameter r19 is set at 1, the 3 digit display will show the blast chilling end temperature; this value can also

be set via parameter r3.

4.3

Press and release the UP or DOWN key within 60 s to modify the parameter value:

Press and release the START/STOP key: the LED and the

LED will remain permanently on and the test to

verify the correct insertion of the needle probe will be started; see paragraph 6.14 " Test for verification of the

correct insertion of the needle probe".

5.1

If the test is completed successfully, the cycle will be started.

The maximum blast chilling duration count is started on condition that the temperature detected by the

needle probe is below that established with parameter r15.

5.2

If the test is not completed successfully, the cycle will be started with timed-control; see paragraph 6.4

"Time-controlled blast chilling and storage".

Operate as indicated to stop the cycle:

Hold the START/STOP key down for 2 s.

During blast chilling, the 3 digit display will show the temperature detected by the needle probe and the 4 digit display

shows the cabinet cell.

The successive parameters establish the following values:

parameter r3 establishes the blast chilling end temperature

parameter r5 establishes the maximum blast chilling duration

parameter r7 establishes the work set-point during blast chilling.

To display the cabinet work set-point during blast chilling, press and release the BLAST CHILLING, DEEP FREEZING or

the HARD/SOFT key; to restore the normal display, press and release the same key again or do not operate for 60 s.

If the temperature detected by the needle probe reaches the blast chilling end temperature within the maximum blast

chilling duration, it means that blast chilling has been completed successfully, the device will automatically pass to

storage and the buzzer will be activated for the period of time established with parameter AA.

Press and release a key to silence the buzzer.

During storage, the 3 digit display shows the time taken to complete blast chilling successfully, the 4 digit display

shows the cabinet temperature and the LED is on.

Parameter r10 establishes the work set-point during storage.

If the temperature detected by the needle probe does not reach the blast chilling end temperature within the

maximum blast chilling duration, blast chilling will not be completed successfully but will continue, the

LED will

flash and the buzzer will be activated.

Press and release a key to restore normal display and to silence the buzzer.

When the temperature detected by the needle probe reaches the blast chilling end temperature, the device

automatically passes to storage in the same way as illustrated previously.

6.3

Temperature-controlled

hard

blast

chilling

and

storage

The temperature-controlled hard blast chilling and storage cycle is divided into the following three phases:

blast chilling hard phase

blast chilling