Switching the child safety lock on / off
1.Touch the Lock control 
sensor for approximately 3 seconds.
An acoustic signal will sound as confirmation.
2.Touch any control sensor.
will appear in the displays, indicating the child safety lock has been activated.
approx 3 sec.
3.For switching the child safety lock off, touch theLock control 
sensor again for 3 seconds.
An acoustic signal will sound as confirmation.
TIMER
There are two ways to use the timer:
Using the timer as a safety shutoff:
If a specific time is set for a cooking zone, the cooking zone will shut itself off once this period of time has elapsed. This function can be used for multiple cooking zones simultaneously.
Using the timer to count up timer:
The count up timer cannot be used if a cooking zone use timer as a safety shutoff.
Setting the safety shutoff
The cooking zone(s) for which you want to apply the safety shutoff must be switched on.
1. After switched on, press the corresponding cooking zone to activate the flash signal for the corresponding cooking zone display.
2. Press Timer control 
sensor.
The number 10 will be displayed above the timer display.