Pro-tec Automobile Alarm - Manual (Page 9)

Your system has Nuisance Prevention Circuitry
(NPC). It prevents annoying repetitive trigger
sequences due to faulty door pin switches or
environmental conditions such as thunder,
jackhammers, airport noise, etc.
Here’s how it works:
Lets say the alarm triggers three times. Each time
the same sensor or switch is triggering the alarm.
The three triggers are within 60 minutes of each
other. NPC will interpret this pattern of triggers as
false alarms. After the third trigger, NPC ignores
or bypasses that sensor or switch (along with any
other sensors or switches sharing the same zone).
If the bypassed sensor tries to trigger the system
while it is being bypassed, the 60-minute bypass
period will start over. This ensures that a sensor
that continuously triggers will remain bypassed.
Doors are covered by NPC differently: If the alarm
is triggered by an open door for three full cycles
(one and one half minutes), the doors will be
bypassed until the trigger ceases.
NOTE: Arming and disarming the system does
not reset this function! The only ways to reset
a bypassed zone are for it to not trigger for
60 minutes or disconnect power to the control
module and re-connect power.
Nuisance Prevention Circuitry