Nilfisk-ALTO 3.4 user manual L o c k

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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.

How to enable protection

First of all, choose the protection mode:

Two modes are available:

Total: Partial:

all editing functions are blocked and access to the PRESET menu is disabled

only the parameters relative to the Inputs

can be edited (Delay, Gain, EQ),

all other editing functions are blocked

and access to the PRESET menu disabled

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Then use the and keys to access the area in which the password is entered.

IMPORTANT! The protection cannot be unlocked without the password! 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.

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After entering the password, press ENTER.

Note: Confirmation is only accepted if the cursor is positioned on one of the passwords four characters. 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 LEDs are lit and therefore no type of editing is enabled), the following appears on the display:

Total Protection enabled Partial Protection enabled

T A 1 3 B 2 4 S 5 6

2 U 2 2 W + 2 M A X

P A 1 3 B 2 4 S 5 6

2 U 2 2 W + 2 M A X

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