Viro SONAR Manual De Uso página 7

3. Setting of the disc lock functions
Lock the disc lock (see procedure "To lock").
Activate the electronics (see procedure "Activation of the
electronics").
Keep the button of Fig. 1 pag. 40 pressed for about 4
seconds within 10 seconds from the activation of the
electronics: a sound signal ("beep") and a red LED
blinking will confirm it is now possible to set the disc lock
functions.
The first settable function is the alarm sound type.
To set one function it is necessary to press several times
and for less than 4 seconds the button of Fig. 1 (see
column "Setting the function (n. of short press of the
button of Fig. 1)" on Table A).
Each function setting is signaled by a different sound
signal (see column "Level signaling" on Table A).
Pag. 46 Pag. 7