
5
Settings
36
If your system's clock or calen-
dar is incorrect, it could result
in false alarms. Since many
system functions are time-de-
pendent, it is very important
to regularly check your
system's clock and calendar.
Be sure to reset the clock after
seasonal time changes, such
as Daylight Savings Time. Also,
although your system may have
a backup battery, it is best to
check the clock and calendar
following a power failure.
NOTE: your system's clock
uses a 24-hour, or military-style,
format. For example, in a 24-
hour format, 1:00 p.m. is ex-
pressed as 13:00. Thus, when
you enter the hours of the day,
be sure to use this format.
To convert from 24-hour time to
12-hour time, subtract 12 hours
from all times greater than
12:00; these are p.m. times. (In
24-hour time, midnight is 00:00,
and noon is 12:00.)
To Set the Clock
and Calendar:
1. Press and hold the
[clock] key for 2 seconds un-
til you hear 2 beeps. You see:
ENTER MASTER CODE
2. Enter the master user code.
3. You see something like this:
Enter the day of the month,
using two numbers. Then,
press the
key.
4. You see something like this:
Enter the number of the
month, using two numbers.
Then, press the
key.
5. You see something like this:
How to Set the Clock and Calendar
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