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Chapter 2
D - VOLUMETRIC PROTECTION
This protection monitors the volume of the passenger compartment. It is active
45 seconds after the alarm is armed.
1
- Triggering volumetric protection:
An intrusion is detected by the ultra sound sensor module. All significant
variations in passenger compartment volume trigger the alarm.
a - Prohibiting volumetric protection
•
Voluntary prohibition
After the ignition is switched off, this protection can be prohibited
voluntarily, by pressing the volumetric suppression switch for at least 1
second. This request must be made within 5 minutes before the alarm
is armed, otherwise it is ignored.
•
Automatic prohibition
Volumetric protection is prohibited after the alarm has been triggered 3
times within the same arming period.
E - TRIGGERING THE ALARM
If an intrusion attempt is detected when the alarm is armed, the alarm will:
•
•
•
•
operate the self powered alarm for 30 seconds,
operate the indicators and side repeaters,
memorise the fact that the alarm has been triggered,
count the number of times the alarm has been triggered due to the
volumetric protection.
After 30 seconds, the alarm returns to armed mode. It can only be triggered
again after being armed for at least 5 seconds.
The case of the supply being cut is controlled directly by the self powered
siren.
F - PROHIBITING THE SIREN
The siren can be prohibited by pressing the volumetric suppression switch for
at least 2 seconds, within 10 seconds after the ignition is switched on.
MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 9
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