Nilfisk-ALTO 3.4 - Manual (Page 29)

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How to enable protection
First of all, choose the protection mode:
Two modes are available:
Total: Partial:
all editing functions are blocked and only the parameters relative to the Inputs
access to the PRESET menu is disabled can be edited (Delay, Gain, EQ),
all other editing functions are blocked
and access to the PRESET menu disabled
After entering the password, press ENTER.
Confirmation is only accepted if the cursor is positioned on one of the passwords four characters. Note: This
allows to avoid accidental enabling, without having seen the password.
Protection is enabled and the system takes up default status.
How to disable the protection
If the protection is enabled, when the system is in default status (i.e. when none menu
are lit and LEDs therefore
no type of editing is enabled), the following appears on the display:
L o c k
L O C K T o t a l
P a s s w o r d [ 1 2 3 4 ]
L O C K r i t a l
P a s s w o r d [ 1 2 3 4 ]
P a
L O C K r i t a l
P a s s w o r d [ B I R D ]
P a L O C K
P a s s w o r d
[ 1 2 3 4 ]
r i t a l P a
Total Protection enabled
T A 1 3 B 2 4 S 5 6
2 U 2 2 W + 2 M A X
Partial Protection enabled
P A 1 3 B 2 4 S 5 6
2 U 2 2 W + 2 M A X
This function is very useful whenever even temporary changes or tampering with the settings stored in the system
must be prevented. For example: fixed installations used by several operators (discotheques, clubs, conference
halls, etc.), sound system rental, etc.
Then use the and keys to access the area in which the is entered. password
IMPORTANT! password! The protection cannot be unlocked without the
So write it down or at least choose a word that is easily remembered.
The password is made up of four alphanumerical characters, obtainable using the
and keys and editable
with the DIAL.