8  Advisor Advanced ATSx500A User Guide 
The time limit when unset 
Once the system is set, you have to unset the area within a pre-set time (“entry 
time”) as otherwise you will set off the alarm. The manager of the system needs 
to inform everyone about this time limit. 
You will normally hear a beeper during the time allowed to unset. 
Note: There can be programmed an extended entry time. After the main entry 
time passes, the entry timer is extended for a programmed time period and a 
local alarm activates. See “Local alarm” on page 14 for more details. 
Unset when there is an alarm 
If there is an alarm condition while you are unsetting the system, the alarm is 
reset. You must then find out what caused the alarm and make sure it does not 
happen again. See “What to do when there is an alarm” on page 14. 
Unsetting while the system is in alarm is described in “Resetting an alarm” on 
page 15. 
When you cannot set or unset 
 
You might not be authorised to set/unset specific areas on the premises 
because: 
•  Your keypad has been programmed to set/unset specific areas of the 
premises only. Make sure you know which keypad to use if there is more than 
one present of the premises. 
•  Your PIN and/or card have been programmed to set/unset only specific areas 
of the premises. Make sure you know which areas you are authorised to 
set/unset. 
•  Your alarm system might have more than one control panel. If so, each will 
have been programmed to set/unset only specific areas of the premises. 
Make sure you use the correct keypad for the areas you want to set/unset. 
Active zones 
You cannot set an area if it has a zone that is open, such as the magnetic 
contacts of a door or window. So, before setting, make sure that all doors and 
windows are properly closed.  
If a zone is open when you try to set, you get the message: 
 
  CHECK SYSTEM 
  Devices open 
All the active zones are listed: