11
Pressing the
TIMER
key enters the timer display mode, this is shown by the
presence of a colon which flashes every second.
The timer can be set to any required value to a maximum time period of 99
hours 59 minutes and 50 seconds. The analogue bar graph shows the time left,
in minutes, from 30 minutes before time zero (bar graph on the left) to 30
minutes after (bar graph on the right).
The unit will also beep to indicate the passage of set units of time, the number
and frequency of beeps depending on the time left to time zero, there are no
beeps after time zero. The beep sequences are shown in the table below.
Beeps begin at
Beeps end at
Number of beeps
Frequency
< 60 hours
1 hour
5
every hour
< 1 hour
=>10 minutes
4
every 10 minutes
< 10 minutes
=> 1 minute
3
every minute
< 1 minute
=> 10 seconds
2
every 10 seconds
< 10 seconds
>0
1
every second
= 0
>-10 seconds
continuous
for 10 seconds
This means that for the example given above of 1 hour 48 minutes the following
beeps will occur:
•
5 beeps at 1:00
•
4 beeps at 0:50; 0:40; 0:30; 0:20; 0:10
•
3 beeps at 0:09; 0:08; 0:07; 0:06...0:01
•
2 beeps at 0:00:50; 0:00:40...0:00:10
•
1 beep at 0:00:09; 0:00:08; 0:00:07...0:00:01
•
continuous beep at 0:00:00 for ten seconds
At each of these periods the display will briefly show the time left.
Press
MODE
to return to the heading display.
USING THE TIMER
MODE
TIMER
LOCK
SETUP
LIGHTS
ENTER
Network COMPASS
30
20
10
30
20
10
